&#34;Fast Kernel Headers&#34; Tree -v1: Eliminate the Linux kernel&#39;s &#34;Dependency Hell&#34;

Quoted 5 lines · Ingo Molnar

- As to testing & runtime behavior: while all of these patches are intended to be bug-free, I did find a couple of semi-bugs in the kernel where a specific order of headers guaranteed a particular code generation outcome - and if that header order was disturbed, the kernel would silently break and fail to boot ...

Looks like you are doing a lot of uninlining. Do you see any runtime performance degradation with the patchset?

Signature · 1 line

 Kirill A. Shutemov

Ingo Molnar

author

2022-01-03 16:29 UTC #4 lore raw

Quoted 11 lines · Greg Kroah-Hartman

Quoted 8 lines
The overall policy to extend task_struct, going forward, would be to:
- Either make simple-type or struct-pointer additions to task_struct, that don't couple <linux/sched.h> to other subsystems.
- Or, if you absolutely must - and we don't want to forbid this - use the per_task() machinery to create a simple accessor to a complex embedded type.
I'll leave all of this up to the scheduler developers, but it still looks odd to me. The mess we create trying to work around issues in C :)

Yeah, so I *did* find this somewhat suboptimal too, and developed an earlier version that used linker section tricks to gain the field offsets more automatically.

It was an unmitigated disaster: was fragile on x86 already (which has a zoo of linking quirks with no precedent of doing this before bounds.c processing), but on ARM64 and probably on most of the other RISC-ish architectures there was also a real runtime code generation cost of using linker tricks: 2-3 extra instructions per per_task() use - clearly unacceptable.

Found this out the hard way after making it boot & work on ARM64 and looking at the assembly output, trying to figure out why the generated code size increased. :-/

Anyway, the current method has the big advantage of being obviously invariant wrt. code generation compared to the previous code, on every architecture.

Quoted 5 lines

Quoted 1 line
Do these plans sound good to you?
Yes, taking the majority through the maintainer trees and then doing the remaining bits in a single tree seems sane, that one tree will be easier to review as well.

Ok. Will definitely offer it up piecemail-wise, in reviewable chunks, via existing processes & flows.

Thanks,

Ingo

Nathan Chancellor

maintainer

2022-01-03 17:54 UTC #23 lore raw

In reply to Kirill A. Shutemov

Hi Ingo,

Quoted 6 lines · Ingo Molnar

Before going into details about how this tree solves 'dependency hell' exactly, here's the current kernel build performance gain with CONFIG_FAST_HEADERS=y enabled, (and with CONFIG_KALLSYMS_FAST=y enabled as well - see below), using a stock x86 Linux distribution's .config with all modules built into the vmlinux:

Quoted 8 lines

#
# Performance counter stats for 'make -j96 vmlinux' (3 runs):
#
# (Elapsed time in seconds):
#
  v5.16-rc7:            231.34 +- 0.60 secs, 15.5 builds/hour    # [ vanilla baseline ]
  -fast-headers-v1:     129.97 +- 0.51 secs, 27.7 builds/hour    # +78.0% improvement

This is really impressive; as someone who constantly builds large kernels for test coverage, I am excited about less time to get results. Testing on an 80-core arm64 server (the fastest machine I have access to at the moment) with LLVM, I can see anywhere from 18% to 35% improvement.

Benchmark 1: ARCH=arm64 defconfig (linux)
Time (mean ± σ): 97.159 s ± 0.246 s [User: 4828.383 s, System: 611.256 s]
Range (min … max): 96.900 s … 97.648 s 10 runs

Benchmark 2: ARCH=arm64 defconfig (linux-fast-headers)
Time (mean ± σ): 76.300 s ± 0.107 s [User: 3149.986 s, System: 436.487 s]
Range (min … max): 76.117 s … 76.467 s 10 runs

Summary
'ARCH=arm64 defconfig (linux-fast-headers)' ran
1.27 ± 0.00 times faster than 'ARCH=arm64 defconfig (linux)'

Benchmark 1: ARCH=arm64 allmodconfig (linux)
Time (mean ± σ): 390.106 s ± 0.192 s [User: 23893.382 s, System: 2802.413 s]
Range (min … max): 389.942 s … 390.513 s 7 runs

Benchmark 2: ARCH=arm64 allmodconfig (linux-fast-headers)
Time (mean ± σ): 288.066 s ± 0.621 s [User: 16436.098 s, System: 2117.352 s]
Range (min … max): 287.131 s … 288.982 s 7 runs

Summary
'ARCH=arm64 allmodconfig (linux-fast-headers)' ran
1.35 ± 0.00 times faster than 'ARCH=arm64 allmodconfig (linux)'

Benchmark 1: ARCH=arm64 allyesconfig (linux)
Time (mean ± σ): 557.752 s ± 1.019 s [User: 21227.404 s, System: 2226.121 s]
Range (min … max): 555.833 s … 558.775 s 7 runs

Benchmark 2: ARCH=arm64 allyesconfig (linux-fast-headers)
Time (mean ± σ): 473.815 s ± 1.793 s [User: 15351.991 s, System: 1689.630 s]
Range (min … max): 471.542 s … 476.830 s 7 runs

Summary
'ARCH=arm64 allyesconfig (linux-fast-headers)' ran
1.18 ± 0.00 times faster than 'ARCH=arm64 allyesconfig (linux)'

I wanted to test the same x86_64 configs last night but I ran out of time before bed due to some issues that I was only able to look at this morning (more on those below). I'll just have to settle for defconfig right now, whichs shows a modest improvement.

Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 41.122 s ± 0.190 s [User: 1700.206 s, System: 205.555 s]
Range (min … max): 40.966 s … 41.515 s 7 runs

Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 36.357 s ± 0.183 s [User: 1134.252 s, System: 152.396 s]
Range (min … max): 35.983 s … 36.534 s 7 runs

Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran

    1.13 ± 0.01 times faster than 'ARCH=x86_64 defconfig (linux)'

Quoted 12 lines

For example, the preprocessed kernel/pid.c file explodes into over 94,000 lines of code on the vanilla kernel:
# v5.16-rc7:
kepler:~/mingo.tip.git> make kernel/pid.i
kepler:~/mingo.tip.git> wc -l kernel/pid.i
94569 kernel/pid.i
The compiler has to go through those 95,000 lines of code - even if a lot of it is trivial fluff not actually used by kernel/pid.c.

Quoted 6 lines

With the fast-headers kernel that's down to ~36,000 lines of code, almost a factor of 3 reduction:
# fast-headers-v1:
kepler:~/mingo.tip.git> wc -l kernel/pid.i
35941 kernel/pid.i

Coming from someone who often has to reduce a preprocessed kernel source file with creduce/cvise to report compiler bugs, this will be a very welcomed change, as those tools will have to do less work, and I can get my reports done faster.

########################################################################

I took the series for a spin with clang and GCC on arm64 and x86_64 and I found a few warnings/errors.

1. Position of certain attributes

In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):

In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'

#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                             ^

My diff to fix this looks like:

include/linux/dcache.h +1 -2

index 520daf638d06..da7e77a7cede 100644
@@ -127,8 +127,7 @@ enum dentry_d_lock_class
        DENTRY_D_LOCK_NESTED
 };
 
-____cacheline_aligned
-struct dentry_operations {
+struct ____cacheline_aligned dentry_operations {
        int (*d_revalidate)(struct dentry *, unsigned int);
        int (*d_weak_revalidate)(struct dentry *, unsigned int);
        int (*d_hash)(const struct dentry *, struct qstr *);

include/linux/fs_types.h +1 -2

index b53aadafab1b..e2e1c0827183 100644
@@ -994,8 +994,7 @@ struct file_operations {
        int (*fadvise)(struct file *, loff_t, loff_t, int);
 } __randomize_layout;
 
-____cacheline_aligned
-struct inode_operations {
+struct ____cacheline_aligned inode_operations {
        struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
        const char * (*get_link) (struct dentry *, struct inode *, struct delayed_call *);
        int (*permission) (struct user_namespace *, struct inode *, int);

include/linux/netdevice_api.h +1 -1

index 4a8d7688e148..0e5e08dcbb2a 100644
@@ -49,7 +49,7 @@
 #endif
 
 /* This structure contains an instance of an RX queue. */
-____cacheline_aligned_in_smp struct netdev_rx_queue {
+struct ____cacheline_aligned_in_smp netdev_rx_queue {
        struct xdp_rxq_info             xdp_rxq;
 #ifdef CONFIG_RPS
        struct rps_map __rcu            *rps_map;

include/net/xdp_types.h +1 -1

index 442028626b35..accc12372bca 100644
@@ -56,7 +56,7 @@ struct xdp_mem_info {
 struct page_pool;
 
 /* perf critical, avoid false-sharing */
-____cacheline_aligned struct xdp_rxq_info {
+struct ____cacheline_aligned xdp_rxq_info {
        struct net_device *dev;
        u32 queue_index;
        u32 reg_state;

2. Error with CONFIG_SHADOW_CALL_STACK

With ARCH=arm64 defconfig + CONFIG_SHADOW_CALL_STACK, I see the following error:

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig menuconfig init/
init/main.c:916:50: error: use of undeclared identifier 'init_shadow_call_stack'
        per_task(&init_task, ti) = (struct thread_info) INIT_THREAD_INFO(init_task);
                                                        ^
./arch/arm64/include/asm/thread_info.h:123:2: note: expanded from macro 'INIT_THREAD_INFO'
        INIT_SCS                                                        \
        ^
./arch/arm64/include/asm/thread_info.h:113:14: note: expanded from macro 'INIT_SCS'
        .scs_base       = init_shadow_call_stack,                       \
                          ^
init/main.c:916:50: error: use of undeclared identifier 'init_shadow_call_stack'
./arch/arm64/include/asm/thread_info.h:123:2: note: expanded from macro 'INIT_THREAD_INFO'
        INIT_SCS                                                        \
        ^
./arch/arm64/include/asm/thread_info.h:114:13: note: expanded from macro 'INIT_SCS'
        .scs_sp         = init_shadow_call_stack,
                          ^
2 errors generated.

It looks like on mainline, init_shadow_call_stack is in defined and used in init/init_task.c but now, it is used in init/main.c, with no declaration to allow the compiler to find the definition. I guess moving init_shadow_call_stack out of init/init_task.c to somewhere more common would fix this but it depends on SCS_SIZE, which is defined in include/linux/scs.h, and as soon as I tried to include that in another file, the build broke further... Any ideas you have would be appreciated :) for benchmarking purposes, I just disabled CONFIG_SHADOW_CALL_STACK.

3. Nested function in arch/x86/kernel/asm-offsets.c

$ make -skj"$(nproc)" ARCH=x86_64 LLVM=1 defconfig all
In file included from arch/x86/kernel/asm-offsets.c:40:
arch/x86/kernel/../../../kernel/sched/per_task_area_struct_defs.h:10:1: error: function definition is not allowed here
{
^
1 error generated.

Clang does not and will not support nested functions; any instances of those in the kernel were eliminated when formalizing clang support.

I am not really sure if this was intentional or not? Looking at the other asm-offsets.c files, I see the include outside of any function. Moving it out of the common() function does not appear to break the build for defconfig, allmodconfig, or my distribution config and it boots in QEMU and my AMD based test desktop.

arch/x86/kernel/asm-offsets.c +2 -2

index ff3f8ed5d0a2..a6d56f4697cd 100644
@@ -35,10 +35,10 @@
 # include "asm-offsets_64.c"
 #endif
 
-static void __used common(void)
-{
 #include "../../../kernel/sched/per_task_area_struct_defs.h"
 
+static void __used common(void)
+{
        BLANK();
        DEFINE(TASK_threadsp, offsetof(struct task_struct, per_task_area) +
                              offsetof(struct task_struct_per_task, thread) +

4. Build error in kernel/gcov/clang.c

$ make -skj"$(nproc)" ARCH=x86_64 LLVM=1 distclean allmodconfig kernel/gcov/clang.o
kernel/gcov/clang.c:232:3: error: implicitly declaring library function 'memset' with type 'void *(void *, int, unsigned long)' [-Werror,-Wimplicit-function-declaration]
                memset(fn->counters, 0,
                ^
kernel/gcov/clang.c:232:3: note: include the header <string.h> or explicitly provide a declaration for 'memset'
kernel/gcov/clang.c:291:32: error: implicit declaration of function 'kmemdup' [-Werror,-Wimplicit-function-declaration]
        struct gcov_fn_info *fn_dup = kmemdup(fn, sizeof(*fn),
                                      ^
kernel/gcov/clang.c:291:23: error: incompatible integer to pointer conversion initializing 'struct gcov_fn_info *' with an expression of type 'int' [-Werror,-Wint-conversion]
        struct gcov_fn_info *fn_dup = kmemdup(fn, sizeof(*fn),
                             ^        ~~~~~~~~~~~~~~~~~~~~~~~~
kernel/gcov/clang.c:304:2: error: implicitly declaring library function 'memcpy' with type 'void *(void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]
        memcpy(fn_dup->counters, fn->counters, cv_size);
        ^
kernel/gcov/clang.c:304:2: note: include the header <string.h> or explicitly provide a declaration for 'memcpy'
kernel/gcov/clang.c:320:8: error: implicit declaration of function 'kmemdup' [-Werror,-Wimplicit-function-declaration]
        dup = kmemdup(info, sizeof(*dup), GFP_KERNEL);
              ^
kernel/gcov/clang.c:320:6: error: incompatible integer to pointer conversion assigning to 'struct gcov_info *' from 'int' [-Werror,-Wint-conversion]
        dup = kmemdup(info, sizeof(*dup), GFP_KERNEL);
            ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kernel/gcov/clang.c:325:18: error: implicit declaration of function 'kstrdup' [-Werror,-Wimplicit-function-declaration]
        dup->filename = kstrdup(info->filename, GFP_KERNEL);
                        ^
kernel/gcov/clang.c:325:16: error: incompatible integer to pointer conversion assigning to 'const char *' from 'int' [-Werror,-Wint-conversion]
        dup->filename = kstrdup(info->filename, GFP_KERNEL);
                      ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 errors generated.

I resolved this with:

kernel/gcov/clang.c +1 -0

index 6ee385f6ad47..29f0899ba209 100644
@@ -52,6 +52,7 @@
 #include <linux/ratelimit.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
+#include <linux/string.h>
 #include "gcov.h"
 
 typedef void (*llvm_gcov_callback)(void);

5. BPF errors

With Arch Linux's config (https://github.com/archlinux/svntogit-packages/raw/packages/linux/trunk/config),
I see the following errors:

kernel/bpf/preload/iterators/iterators.c:3:10: fatal error: 'linux/sched/signal.h' file not found

#include <linux/sched/signal.h>
         ^~~~~~~~~~~~~~~~~~~~~~

1 error generated.

kernel/bpf/sysfs_btf.c:21:2: error: implicitly declaring library function 'memcpy' with type 'void *(void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]

        memcpy(buf, __start_BTF + off, len);
        ^

kernel/bpf/sysfs_btf.c:21:2: note: include the header <string.h> or explicitly provide a declaration for 'memcpy' 1 error generated.

The second error is obviously fixed by just including string.h as above.

I am not sure what is wrong with the first one; the includes all appear to be userland headers, rather than kernel ones, so maybe an -I flag is not present that should be? To work around it, I disabled CONFIG_BPF_PRELOAD.

6. resolve_btfids warning

After working around the above errors, with either GCC or clang, I see the following warnings with Arch Linux's configuration:

WARN: multiple IDs found for 'task_struct': 103, 23549 - using 103
WARN: multiple IDs found for 'path': 1166, 23551 - using 1166
WARN: multiple IDs found for 'inode': 997, 23561 - using 997
WARN: multiple IDs found for 'file': 714, 23566 - using 714
WARN: multiple IDs found for 'seq_file': 1120, 23673 - using 1120

Which appears to come from symbols_resolve() in
tools/bpf/resolve_btfids/main.c.

########################################################################

I am very excited to see where this goes, it is a herculean effort but I think it will be worth it in the long run. Let me know if there is any more information or input that I can provide, cheers!

Nathan

Ingo Molnar

author Applied

2022-01-04 10:47 UTC #24 lore raw

Quoted 24 lines · Nathan Chancellor

Hi Ingo,
Quoted 6 lines · Ingo Molnar
Before going into details about how this tree solves 'dependency hell' exactly, here's the current kernel build performance gain with CONFIG_FAST_HEADERS=y enabled, (and with CONFIG_KALLSYMS_FAST=y enabled as well - see below), using a stock x86 Linux distribution's .config with all modules built into the vmlinux:
Quoted 8 lines
#
# Performance counter stats for 'make -j96 vmlinux' (3 runs):
#
# (Elapsed time in seconds):
#
  v5.16-rc7:            231.34 +- 0.60 secs, 15.5 builds/hour    # [ vanilla baseline ]
  -fast-headers-v1:     129.97 +- 0.51 secs, 27.7 builds/hour    # +78.0% improvement
This is really impressive; as someone who constantly builds large kernels for test coverage, I am excited about less time to get results. Testing on an 80-core arm64 server (the fastest machine I have access to at the moment) with LLVM, I can see anywhere from 18% to 35% improvement.

Quoted 7 lines

Benchmark 1: ARCH=arm64 defconfig (linux)
Time (mean ± σ): 97.159 s ± 0.246 s [User: 4828.383 s, System: 611.256 s]
Range (min … max): 96.900 s … 97.648 s 10 runs
Benchmark 2: ARCH=arm64 defconfig (linux-fast-headers)
Time (mean ± σ): 76.300 s ± 0.107 s [User: 3149.986 s, System: 436.487 s]
Range (min … max): 76.117 s … 76.467 s 10 runs

That looks good, thanks for giving it a test, and thanks for all the fixes! :-)

Note that on ARM64 the elapsed time improvement is 'only' 18-35%, because the triple-linking of vmlinux serializes much of the of a build & ARM64 doesn't have the kallsyms-objtool feature yet.

But we can already see how much faster it became, from the user+system time spent building the kernel:

           vanilla: 4828.383 s + 611.256 s = 5439.639 s

-fast-headers-v1: 3149.986 s + 436.487 s = 3586.473 s

That's a +51% speedup. :-)

With CONFIG_KALLSYMS_FAST=y on x86, the final link gets faster by about 60%-70%, so the header improvements will more directly show up in elapsed time as well.

Plus I spent more time looking at x86 header bloat than at ARM64 header bloat. In the end I think the improvement could probably moved into the broad 60-70% range that I see on x86.

All the other ARM64 tests show a 37%-43% improvement in CPU time used:

Quoted 7 lines

Benchmark 1: ARCH=arm64 allmodconfig (linux)
Time (mean ± σ): 390.106 s ± 0.192 s [User: 23893.382 s, System: 2802.413 s]
Range (min … max): 389.942 s … 390.513 s 7 runs
Benchmark 2: ARCH=arm64 allmodconfig (linux-fast-headers)
Time (mean ± σ): 288.066 s ± 0.621 s [User: 16436.098 s, System: 2117.352 s]
Range (min … max): 287.131 s … 288.982 s 7 runs

# (23893.382+2802.413)/(16436.098+2117.352) = +43% in throughput.

Quoted 7 lines

Benchmark 1: ARCH=arm64 allyesconfig (linux)
Time (mean ± σ): 557.752 s ± 1.019 s [User: 21227.404 s, System: 2226.121 s]
Range (min … max): 555.833 s … 558.775 s 7 runs
Benchmark 2: ARCH=arm64 allyesconfig (linux-fast-headers)
Time (mean ± σ): 473.815 s ± 1.793 s [User: 15351.991 s, System: 1689.630 s]
Range (min … max): 471.542 s … 476.830 s 7 runs

# (21227.404+2226.121)/(15351.991+1689.630) = +37%

Quoted 7 lines

Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 41.122 s ± 0.190 s [User: 1700.206 s, System: 205.555 s]
Range (min … max): 40.966 s … 41.515 s 7 runs
Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 36.357 s ± 0.183 s [User: 1134.252 s, System: 152.396 s]
Range (min … max): 35.983 s … 36.534 s 7 runs

# (1700.206+205.555)/(1134.252+152.396) = +48%

Quoted 3 lines

Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran
    1.13 ± 0.01 times faster than 'ARCH=x86_64 defconfig (linux)'

Now this x86-defconfig result you got is a bit weird - it *should* have been around ~50% faster on x86 in terms of elapsed time too.

Here's how x86-64 defconfig looks like on my system - with 128 GB RAM & fast NVDIMMs and 64 CPUs:

#
# -v5.16-rc8:
#

   $ perf stat --repeat 3 -e instructions,cycles,cpu-clock --sync --pre "make clean >/dev/null" make -j96 vmlinux >/dev/null

Performance counter stats for 'make -j96 vmlinux' (3 runs):

   4,906,953,379,372      instructions              #    0.90  insn per cycle           ( +-  0.00% )
   5,475,163,448,391      cycles                    #    3.898 GHz                      ( +-  0.01% )
        1,404,614.64 msec cpu-clock                 #   45.864 CPUs utilized            ( +-  0.01% )

             30.6258 +- 0.0337 seconds time elapsed  ( +-  0.11% )

#
# -fast-headers-v1:
#

   $ make defconfig
   $ grep KALLSYMS_FAST .config
   CONFIG_KALLSYMS_FAST=y

   $ perf stat --repeat 3 -e instructions,cycles,cpu-clock --sync --pre "make clean >/dev/null" make -j96 vmlinux >/dev/null

    Performance counter stats for 'make -j96 vmlinux' (3 runs):

     3,500,079,269,120      instructions              #    0.90  insn per cycle           ( +-  0.00% )
     3,872,081,278,824      cycles                    #    3.895 GHz                      ( +-  0.10% )
            993,448.13 msec cpu-clock                 #   47.306 CPUs utilized            ( +-  0.10% )

             21.0004 +- 0.0265 seconds time elapsed  ( +-  0.13% )

That's a +45.8% speedup in elapsed time, and a +41.4% improvement in cpu-clock utilization.

I'm wondering whether your system has some sort of bottleneck?

One thing I do though when running benchmarks is to switch the cpufreq governor to 'performance', via something like:

   NR_CPUS=$(nproc --all)

   curr=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
   next=performance

echo "# setting all $NR_CPUS CPUs from '"$curr"' to the '"$next"' governor"

   for ((cpu=0; cpu<$NR_CPUS; cpu++)); do
     G=/sys/devices/system/cpu/cpu$cpu/cpufreq/scaling_governor
     [ -f $G ] && echo $next > $G
   done

This minimizes the amount of noise across iterations and makes the results more dependable:

             30.6258 +- 0.0337 seconds time elapsed  ( +-  0.11% )
             21.0004 +- 0.0265 seconds time elapsed  ( +-  0.13% )

Quoted 11 lines

Quoted 6 lines
With the fast-headers kernel that's down to ~36,000 lines of code, almost a factor of 3 reduction:
# fast-headers-v1:
kepler:~/mingo.tip.git> wc -l kernel/pid.i
35941 kernel/pid.i
Coming from someone who often has to reduce a preprocessed kernel source file with creduce/cvise to report compiler bugs, this will be a very welcomed change, as those tools will have to do less work, and I can get my reports done faster.

That's nice, didn't think of that side effect.

Could you perhaps measure this too, to see how much of a benefit it is?

Quoted 4 lines

########################################################################
I took the series for a spin with clang and GCC on arm64 and x86_64 and I found a few warnings/errors.

Thank you!

Quoted 6 lines

1. Position of certain attributes
In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):

Quoted 12 lines

In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))

Yeah, so this is a *really* stupid warning from Clang.

Putting the attribute after 'struct' risks the hard to track down bugs when a <linux/cache.h> inclusion is missing, which scenario I pointed out in this commit:

headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:

ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here

After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.

There were no compile time errors, only link time errors.

Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:

In file included from ./include/linux/fs.h:9,
from ./include/linux/fsverity.h:14, from fs/verity/fsverity_private.h:18, from fs/verity/read_metadata.c:8:
./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
132 | ____cacheline_aligned
| ^
| ;
133 | struct dentry_operations {
| ~~~~~~

No change in functionality.

Signed-off-by Ingo Molnar <[email protected]>

Can this Clang warning be disabled?

Quoted 1 line

2. Error with CONFIG_SHADOW_CALL_STACK

So this feature depends on Clang:

# Supported by clang >= 7.0
config CC_HAVE_SHADOW_CALL_STACK

         def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)

No way to activate it under my GCC cross-build toolchain, right?

But ... I hacked the build mode on with GCC using this patch:

From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 11:26:09 +0100
Subject: [PATCH] DO NOT MERGE: Enable SHADOW_CALL_STACK on GCC builds, for build testing

NOT-Signed-off-by Ingo Molnar <[email protected]>

---
 Makefile           | 2 +-
 arch/Kconfig       | 2 +-
 arch/arm64/Kconfig | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

Makefile +1 -1

index 16d7f83ac368..bbab462e7509 100644
@@ -888,7 +888,7 @@ LDFLAGS_vmlinux += --gc-sections
 endif
 
 ifdef CONFIG_SHADOW_CALL_STACK
-CC_FLAGS_SCS	:= -fsanitize=shadow-call-stack
+CC_FLAGS_SCS	:=
 KBUILD_CFLAGS	+= $(CC_FLAGS_SCS)
 export CC_FLAGS_SCS
 endif

arch/Kconfig +1 -1

index 4e56f66fdbcf..2103d9da4fe1 100644
@@ -605,7 +605,7 @@ config ARCH_SUPPORTS_SHADOW_CALL_STACK
 
 config SHADOW_CALL_STACK
 	bool "Clang Shadow Call Stack"
-	depends on CC_IS_CLANG && ARCH_SUPPORTS_SHADOW_CALL_STACK
+	depends on ARCH_SUPPORTS_SHADOW_CALL_STACK
 	depends on DYNAMIC_FTRACE_WITH_REGS || !FUNCTION_GRAPH_TRACER
 	help
 	  This option enables Clang's Shadow Call Stack, which uses a

arch/arm64/Kconfig +1 -1

index c4207cf9bb17..952f3e56e0a7 100644
@@ -1183,7 +1183,7 @@ config ARCH_HAS_FILTER_PGPROT
 
 # Supported by clang >= 7.0
 config CC_HAVE_SHADOW_CALL_STACK
-	def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
+	def_bool y
 
 config PARAVIRT
 	bool "Enable paravirtualization code"

And was able to trigger at least some of the build errors you saw:

In file included from kernel/scs.c:15:
./include/linux/scs.h: In function 'scs_task_reset':
./include/linux/scs.h:26:34: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration]

This is fixed with:

kernel/scs.c +1 -0

index ca9e707049cb..719ab53adc8a 100644
@@ -5,6 +5,7 @@
  * Copyright (C) 2019 Google LLC
  */
 
+#include <linux/sched/thread_info_api.h>
 #include <linux/sched.h>
 #include <linux/mm_page_address.h>
 #include <linux/mm_api.h>

Then there's the build failure in init/main.c:

Quoted 8 lines

It looks like on mainline, init_shadow_call_stack is in defined and used in init/init_task.c but now, it is used in init/main.c, with no declaration to allow the compiler to find the definition. I guess moving init_shadow_call_stack out of init/init_task.c to somewhere more common would fix this but it depends on SCS_SIZE, which is defined in include/linux/scs.h, and as soon as I tried to include that in another file, the build broke further... Any ideas you have would be appreciated :) for benchmarking purposes, I just disabled CONFIG_SHADOW_CALL_STACK.

So I see:

In file included from ./include/linux/thread_info.h:63,

                 from ./arch/arm64/include/asm/smp.h:32,
                 from ./include/linux/smp_api.h:15,
                 from ./include/linux/percpu.h:6,
                 from ./include/linux/softirq.h:8,
                 from init/main.c:17:
init/main.c: In function 'init_per_task_early':
./arch/arm64/include/asm/thread_info.h:113:27: error: 'init_shadow_call_stack' undeclared (first use in this function)
  113 |         .scs_base       = init_shadow_call_stack,                       \
      |                           ^~~~~~~~~~~~~~~~~~~~~~

This looks pretty straightforward, does this patch solve it?

 include/linux/scs.h | 3 +++
 init/main.c         | 1 +
 2 files changed, 4 insertions(+)

include/linux/scs.h +3 -0

index 18122d9e17ff..863932a9347a 100644
@@ -8,6 +8,7 @@
 #ifndef _LINUX_SCS_H
 #define _LINUX_SCS_H
 
+#include <linux/sched/thread_info_api.h>
 #include <linux/gfp.h>
 #include <linux/poison.h>
 #include <linux/sched.h>

@@ -25,6 +26,8 @@
 #define task_scs(tsk)		(task_thread_info(tsk)->scs_base)
 #define task_scs_sp(tsk)	(task_thread_info(tsk)->scs_sp)
 
+extern unsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)];
+
 void *scs_alloc(int node);
 void scs_free(void *s);
 void scs_init(void);

init/main.c +1 -0

index c9eb3ecbe18c..74ccad445009 100644
@@ -12,6 +12,7 @@
 
 #define DEBUG		/* Enable initcall_debug */
 
+#include <linux/scs.h>
 #include <linux/workqueue_api.h>
 #include <linux/sysctl.h>
 #include <linux/softirq.h>

I've applied these fixes, with that CONFIG_SHADOW_CALL_STACK=y builds fine on ARM64 - but I performed no runtime testing.

I've backmerged this into:

headers/deps: per_task, arm64, x86: Convert task_struct::thread to a per_task() field

where this bug originated from.

I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.

We could move over the init_shadow_call_stack[] array there and make it static to begin with? I don't think anything truly relies on it being a global symbol.

Quoted 9 lines

3. Nested function in arch/x86/kernel/asm-offsets.c
arch/x86/kernel/asm-offsets.c +0 -0
index ff3f8ed5d0a2..a6d56f4697cd 100644
@@ -35,10 +35,10 @@
 # include "asm-offsets_64.c"
 #endif

arch/x86/kernel/asm-offsets.c line 44

Quoted 10 lines

arch/x86/kernel/asm-offsets.c +2 -2

 
-static void __used common(void)
-{
 #include "../../../kernel/sched/per_task_area_struct_defs.h"
 
+static void __used common(void)
+{
        BLANK();
        DEFINE(TASK_threadsp, offsetof(struct task_struct, per_task_area) +
                              offsetof(struct task_struct_per_task, thread) +

Ha, that code is bogus, it's a merge bug of mine. Super interesting that GCC still managed to include the header ...

I've applied your fix.

Quoted 11 lines

4. Build error in kernel/gcov/clang.c
8 errors generated.
I resolved this with:
kernel/gcov/clang.c +0 -0
index 6ee385f6ad47..29f0899ba209 100644

kernel/gcov/clang.c line 56

Quoted 5 lines

kernel/gcov/clang.c +1 -0

@@ -52,6 +52,7 @@
 #include <linux/ratelimit.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
+#include <linux/string.h>
 #include "gcov.h"

Thank you - applied!

Quoted 13 lines

kernel/gcov/clang.c +0 -0
 typedef void (*llvm_gcov_callback)(void);
 
5. BPF errors
With Arch Linux's config (https://github.com/archlinux/svntogit-packages/raw/packages/linux/trunk/config),
I see the following errors:
kernel/bpf/preload/iterators/iterators.c:3:10: fatal error: 'linux/sched/signal.h' file not found
#include <linux/sched/signal.h>
         ^~~~~~~~~~~~~~~~~~~~~~
1 error generated.

Quoted 7 lines

kernel/bpf/sysfs_btf.c:21:2: error: implicitly declaring library function 'memcpy' with type 'void *(void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]
        memcpy(buf, __start_BTF + off, len);
        ^
kernel/bpf/sysfs_btf.c:21:2: note: include the header <string.h> or explicitly provide a declaration for 'memcpy' 1 error generated.
The second error is obviously fixed by just including string.h as above.

Applied.

Quoted 4 lines

I am not sure what is wrong with the first one; the includes all appear to be userland headers, rather than kernel ones, so maybe an -I flag is not present that should be? To work around it, I disabled CONFIG_BPF_PRELOAD.

Yeah, this should be fixed by simply removing the two stray dependencies that found their way into this user-space code:

 kernel/bpf/preload/iterators/iterators.bpf.c | 1 -
 kernel/bpf/preload/iterators/iterators.c     | 1 -
 2 files changed, 2 deletions(-)

kernel/bpf/preload/iterators/iterators.bpf.c +0 -1

index 41ae00edeecf..03af863314ea 100644
@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020 Facebook */
-#include <linux/seq_file.h>
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_core_read.h>

kernel/bpf/preload/iterators/iterators.c +0 -1

index d702cbf7ddaf..5d872a705470 100644
@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020 Facebook */
-#include <linux/sched/signal.h>
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>

Quoted 5 lines

6. resolve_btfids warning
After working around the above errors, with either GCC or clang, I see the following warnings with Arch Linux's configuration:

Quoted 8 lines

WARN: multiple IDs found for 'task_struct': 103, 23549 - using 103
WARN: multiple IDs found for 'path': 1166, 23551 - using 1166
WARN: multiple IDs found for 'inode': 997, 23561 - using 997
WARN: multiple IDs found for 'file': 714, 23566 - using 714
WARN: multiple IDs found for 'seq_file': 1120, 23673 - using 1120
Which appears to come from symbols_resolve() in
tools/bpf/resolve_btfids/main.c.

Hm, is this perhaps related to CONFIG_KALLSYMS_FAST=y? If yes then turning it off might help.

I don't really know this area of BPF all that much, maybe someone else can see what the problem is? The error message is not self-explanatory.

Quoted 6 lines

########################################################################
I am very excited to see where this goes, it is a herculean effort but I think it will be worth it in the long run. Let me know if there is any more information or input that I can provide, cheers!

Your testing & patch sending efforts are much appreciated!! You'd help me most by continuing on the same path with new fast-headers releases as well, whenever you find the time. :-)

BTW., you can always pick up my latest Work-In-Progress branch from:

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers

The 'master' branch will carry the release.

The sched/headers branch is already rebased to -rc8 and has some other changes as well. It should normally work, with less testing than the main releasees, but will at times have fixes at the tail waiting to be backmerged in a bisect-friendly way.

Thanks,

Ingo

Ingo Molnar

author

2022-01-04 10:55 UTC #15 lore raw

Quoted 9 lines · Kirill A. Shutemov

Quoted 5 lines · Ingo Molnar
- As to testing & runtime behavior: while all of these patches are intended to be bug-free, I did find a couple of semi-bugs in the kernel where a specific order of headers guaranteed a particular code generation outcome - and if that header order was disturbed, the kernel would silently break and fail to boot ...
Looks like you are doing a lot of uninlining. Do you see any runtime performance degradation with the patchset?

I haven't tested that yet - and it's pretty hard to performance test uninlining patches directly.

But what I've done is that I basically looked at the context and tried to make a judgement call based on generated code.

In all the uninlining patches where I thought it might not be clear whether it's proper to uninline I added detailed analysis, such as this one:

commit d94530f1abcbfd2500e90e151e7c67ff48ab3259
Author: Ingo Molnar <[email protected]>
Date: Sat Nov 20 18:20:58 2021 +0100

headers/uninline: Uninline multi-use function: put_page()

Ever since the page_is_devmap_managed() logic was added to put_page() in:

07d802699528: ("mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages")

put_page() has become a much larger function of over 2 dozen instructions:

0000000000004d30 <put_page>:
4d30: e8 00 00 00 00 call 4d35 <put_page+0x5>
4d35: 55 push %rbp
4d36: 48 8b 47 08 mov 0x8(%rdi),%rax
4d3a: 48 8d 50 ff lea -0x1(%rax),%rdx
4d3e: a8 01 test $0x1,%al
4d40: 48 89 e5 mov %rsp,%rbp
4d43: 48 0f 45 fa cmovne %rdx,%rdi
4d47: 66 90 xchg %ax,%ax
4d49: f0 ff 4f 34 lock decl 0x34(%rdi)
4d4d: 74 27 je 4d76 <put_page+0x46>
4d4f: 5d pop %rbp
4d50: c3 ret
4d51: 48 8b 07 mov (%rdi),%rax
4d54: 48 c1 e8 33 shr $0x33,%rax
4d58: 83 e0 07 and $0x7,%eax
4d5b: 83 f8 04 cmp $0x4,%eax
4d5e: 75 e9 jne 4d49 <put_page+0x19>
4d60: 48 8b 47 08 mov 0x8(%rdi),%rax
4d64: 8b 40 68 mov 0x68(%rax),%eax
4d67: 83 e8 01 sub $0x1,%eax
4d6a: 83 f8 01 cmp $0x1,%eax
4d6d: 77 da ja 4d49 <put_page+0x19>
4d6f: e8 00 00 00 00 call 4d74 <put_page+0x44>
4d74: 5d pop %rbp
4d75: c3 ret
4d76: e8 00 00 00 00 call 4d7b <put_page+0x4b>
4d7b: 5d pop %rbp
4d7c: c3 ret

Uninline it.

To counter some of the runtime overhead of the extra function call, inline the __put_page() instance into put_page() - this is now possible without extra bloat.

There's a measurable improvement in vmlinux text size, on a distro kernel build, by ~4 KB.

Doing so also decouples <linux/mm_api.h> from <linux/memremap.h>.

Signed-off-by Ingo Molnar <[email protected]>

I think it's pretty much a given that we don't want to inline 2 dozen instructions for every put_page() call and we don't need performance testing.

Admittedly my 'judgement call' was colored by the overall goal to decouple types and headers, so please do double check! None of the uninlining patches are critical to this tree - there's various other ways headers can be decoupled other than uninlining.

There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:

ef1028c44345 headers/uninline: Uninline single-use function: mips: page_size_ftlb() 98bc89e85e3f headers/uninline: Uninline single-use function: set_page_links() e368b54381e9 headers/uninline: Uninline single-use function: cpupid_to_nid()
36b59978a96d headers/uninline: Uninline single-use function: wb_domain_size_changed() 4c95e8f21924 headers/uninline: Uninline single-use function: skb_metadata_differs() 28195c3f7eba headers/uninline: Uninline single-use function: for_each_netdev_feature() 3c82b720eb01 headers/uninline: Uninline single-use function: SPI_STATISTICS_ADD_*() e7c48e440df3 headers/uninline: Uninline single-use function: qdisc_run()
ba0bfe18c8cc headers/uninline: Uninline single-use function: dev_validate_header() 3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children() 0e15d2fb85f9 headers/uninline: Uninline single-use function: xfrm_dev_state_free() 45d5233e1f5f headers/uninline: Uninline single-use function: flow_dissector_init_keys() 7a897b0747b2 headers/uninline: Uninline single-use function: reqsk_alloc()
f9003f1bd834 headers/uninline: Uninline single-use function: skb_propagate_pfmemalloc() 54ea5750f484 headers/uninline: Uninline single-use function: syscall_tracepoint_update() 5a1dc0bca4a4 headers/uninline: Uninline single-use function: proc_sys_poll_event() 0af72df4042d headers/uninline: Uninline single-use function: ep_take_care_of_epollwakeup() 13a8bd09a93a headers/uninline: Uninline single-use function: ptrace_event_pid() f2b8980d4178 headers/uninline: Uninline single-use function: itimerspec64_valid() ec111205e6de headers/uninline: Uninline single-use function: sk_under_cgroup_hierarchy() d623ba9eb252 headers/uninline: Uninline single-use function: wb_find_current() and wb_get_create_current()

Thanks,

Ingo

Ingo Molnar

author

2022-01-04 10:56 UTC #25 lore raw

PATCH 1/1 DO NOT MERGE: Enable SHADOW_CALL_STACK on GCC builds, for build testing

Quoted 10 lines · Ingo Molnar

Quoted 1 line
2. Error with CONFIG_SHADOW_CALL_STACK
So this feature depends on Clang:
# Supported by clang >= 7.0
config CC_HAVE_SHADOW_CALL_STACK
         def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
No way to activate it under my GCC cross-build toolchain, right?

Quoted 7 lines

But ... I hacked the build mode on with GCC using this patch:
From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 11:26:09 +0100
Subject: [PATCH] DO NOT MERGE: Enable SHADOW_CALL_STACK on GCC builds, for build testing
NOT-Signed-off-by Ingo Molnar <[email protected]>

Ok, I've attached patch again instead embedding it in the middle of a long discussion, for future reference.

Thanks,

Ingo

=====================>
From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 11:26:09 +0100
Subject: [PATCH] DO NOT MERGE: Enable SHADOW_CALL_STACK on GCC builds, for build testing

NOT-Signed-off-by Ingo Molnar <[email protected]>

---
 Makefile           | 2 +-
 arch/Kconfig       | 2 +-
 arch/arm64/Kconfig | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

Makefile +1 -1

index 16d7f83ac368..bbab462e7509 100644
@@ -888,7 +888,7 @@ LDFLAGS_vmlinux += --gc-sections
 endif
 
 ifdef CONFIG_SHADOW_CALL_STACK
-CC_FLAGS_SCS	:= -fsanitize=shadow-call-stack
+CC_FLAGS_SCS	:=
 KBUILD_CFLAGS	+= $(CC_FLAGS_SCS)
 export CC_FLAGS_SCS
 endif

arch/Kconfig +1 -1

index 4e56f66fdbcf..2103d9da4fe1 100644
@@ -605,7 +605,7 @@ config ARCH_SUPPORTS_SHADOW_CALL_STACK
 
 config SHADOW_CALL_STACK
 	bool "Clang Shadow Call Stack"
-	depends on CC_IS_CLANG && ARCH_SUPPORTS_SHADOW_CALL_STACK
+	depends on ARCH_SUPPORTS_SHADOW_CALL_STACK
 	depends on DYNAMIC_FTRACE_WITH_REGS || !FUNCTION_GRAPH_TRACER
 	help
 	  This option enables Clang's Shadow Call Stack, which uses a

arch/arm64/Kconfig +1 -1

index c4207cf9bb17..952f3e56e0a7 100644
@@ -1183,7 +1183,7 @@ config ARCH_HAS_FILTER_PGPROT
 
 # Supported by clang >= 7.0
 config CC_HAVE_SHADOW_CALL_STACK
-	def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
+	def_bool y
 
 config PARAVIRT
 	bool "Enable paravirtualization code"

Ingo Molnar

author

2022-01-04 11:02 UTC #26 lore raw

PATCH 1/1 headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

Quoted 56 lines · Ingo Molnar

Quoted 6 lines
1. Position of certain attributes
In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):
Quoted 12 lines
In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
Yeah, so this is a *really* stupid warning from Clang.
Putting the attribute after 'struct' risks the hard to track down bugs when a <linux/cache.h> inclusion is missing, which scenario I pointed out in this commit:
headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition
When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:
ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.
There were no compile time errors, only link time errors.
Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:
In file included from ./include/linux/fs.h:9,
from ./include/linux/fsverity.h:14, from fs/verity/fsverity_private.h:18, from fs/verity/read_metadata.c:8:
./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
132 | ____cacheline_aligned
| ^
| ;
133 | struct dentry_operations {
| ~~~~~~

Quoted 5 lines

No change in functionality.
Signed-off-by Ingo Molnar <[email protected]>
Can this Clang warning be disabled?

Ok, broke out this issue into its own thread, in form of a patch submission
- so that others don't have to wade through a massive tree to find a single commit ...

I'll of course drop these (non-essential) cleanups if the upstream policy is to follow Clang's quirk/convention, but I find the forced attribute tail-position a sad misfeature, due to the reasons outlined in this patch:
a straightforward build failure in case an attribute is not defined is far preferable to spurious creation of variables with link-time warnings that don't actually highlight the exact nature of the bug ...

Thanks,

Ingo

=====================>
Date: Sun, 20 Jun 2021 09:41:45 +0200
Subject: [PATCH] headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:

There were no compile time errors, only link time errors.

Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:

In file included from ./include/linux/fs.h:9,

                   from ./include/linux/fsverity.h:14,
                   from fs/verity/fsverity_private.h:18,
                   from fs/verity/read_metadata.c:8:
  ./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
    132 | ____cacheline_aligned
        |                      ^
        |                      ;
    133 | struct dentry_operations {
        | ~~~~~~

No change in functionality.

Signed-off-by Ingo Molnar <[email protected]>

---
 include/linux/dcache.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

include/linux/dcache.h +2 -1

index 41062093ec9b..0482c3d6f1ce 100644
@@ -129,6 +129,7 @@ enum dentry_d_lock_class
 	DENTRY_D_LOCK_NESTED
 };
 
+____cacheline_aligned
 struct dentry_operations {
 	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_weak_revalidate)(struct dentry *, unsigned int);

@@ -144,7 +145,7 @@ struct dentry_operations {
 	struct vfsmount *(*d_automount)(struct path *);
 	int (*d_manage)(const struct path *, bool);
 	struct dentry *(*d_real)(struct dentry *, const struct inode *);
-} ____cacheline_aligned;
+};
 
 /*
  * Locking rules for dentry_operations callbacks are to be found in

Ingo Molnar

author

2022-01-04 11:19 UTC #31 lore raw

[TREE] "Fast Kernel Headers" Tree WIP/development branch

Quoted 12 lines · Ingo Molnar

Quoted 5 lines
########################################################################
I am very excited to see where this goes, it is a herculean effort but I think it will be worth it in the long run. Let me know if there is any more information or input that I can provide, cheers!
Your testing & patch sending efforts are much appreciated!! You'd help me most by continuing on the same path with new fast-headers releases as well, whenever you find the time. :-)
BTW., you can always pick up my latest Work-In-Progress branch from:

Quoted 8 lines

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
The 'master' branch will carry the release.
The sched/headers branch is already rebased to -rc8 and has some other changes as well. It should normally work, with less testing than the main releasees, but will at times have fixes at the tail waiting to be backmerged in a bisect-friendly way.

Ok, broke out the sched/headers WIP branch into a separate announcement, in case others want to test:

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers

Note that I sometimes will update the 'master' branch as well, without a standalone announcement, if there's some important fix or the previous version moved away too much.

Also, where I backmerged your fixes to manual commits I credited you with:

[ Fixes by Nathan Chancellor ]

Fixed-by Nathan Chancellor <[email protected]>

The (rare) exception would be straight dependency additions such as the <linux/string.h> additions, which are auto-generated from scratch to keep it maintainable & reviewable - if that's fine with you.

Thanks,

Ingo

Willy Tarreau

2022-01-04 12:37 UTC #53 lore raw

Hi Ingo!

First, great work! I'm particularly interested in this work because I went through a similar process a bout 6 months ago in haproxy and saved 40-45% build time, and thought how well the same principles could apply to the kernel if anyone had felt brave enough to engage into that. I do appreciate how tedious a work it can be and do really sympathise with you on this! A few comments below:

Quoted 9 lines · Ingo Molnar

- Uninlining: there's a number of unnecessary inline functions that also couple otherwise unrelated headers to each other. The fast-headers tree contains over 100 uninlining commits.
- Type & API header decoupling. This is one of the most effective techniques to reduce size - but it can rarely be done in a straightforward fashion, and has to be prepared by various decoupling measures, such as the moving of inline functions or the creation of new headers for less frequently used APIs and types.

These were the main two key points I went through as well and found them to be extremely effective. The essential build time in my case came from the same inline functions being built hundreds of times for nothing, just because a header file was included for just one type. I had already decoupled types and API long ago but that didn't stand long enough for a few files that were included everywhere. What I noticed is that ideally we'd need to have 3 layers:
- types alone
- function prototypes alone, depending on the former if needed
- inline functions, depending on the two former ones, if needed

Most code doesn't need need the inline functions, especially other headers, and being able to only cross-include type definitions is extremely helpful.

In my case something that further improved this effectiveness was to use a lot more incomplete types everywhere possible. There's no reason to include foo.h just to have a definition of "struct foo" from "bar.h" if you're only using it as a pointer in "struct bar". Just prepend "struct foo;" before struct bar and be done with it.

This showed me how horrible typedefs are: there seems to be no way to create incomplete definitions for them. So I had to create an even lower level tiny include file for just the few ones I needed (mostly ints).

I hadn't found a perfect way to deal with macros. Sometimes you consider them as inline functions and they seem to be better placed there, and sometimes you figure they are used in type declarations and you have to have them somewhere else. And when a macro is needed between multiple type definitions (e.g. an array size), it becomes more delicate because you quickly realize that a dedicated file for all such settings would make sense, but it can complicate maintenance.

Another point I didn't feel brave enough to experiment with was to guard include files around the #include directive in order to avoid opening the files at all. In my case the C files are huge so such savings could have been small. There are definitely savings to do there but this looked too complicated to maintain. And I don't think that #pragma once would be any effective alternative.

Quoted 6 lines

- For the 'reference' subsystem of the scheduler, I also improved build speed by consolidating .c files into roughly equal size build units. Instead of 20+ separate .o's, there's now just 4 .o's being built. Obviously this approach does not scale to the over 30,000 .c files in the kernel, but I wanted to demonstrate it because optimizing at that level brings the next level of build performance, and it might be feasible for a handful of other core kernel subsystems.

I tried this as well for the sake of avoiding to reprocess the same header files multiple times but it was too difficult and I gave up. I'd be tempted to encourage developers to write a bit less but larger files, but these can also become a maintenance nightmare, they tend to be much slower to build when too big, and they do parallelize less well, so a balance has to be found, and if the headers hell is better addressed, then this becomes less important.

I noticed that you measured the number of includes per file. I did the same by counting the references to the include files in the preprocessed output, but ultimately found an easier metric: the total preprocessed size. I simply replaced "-c" with "-E" in my makefile, and ran "find . -name '*.o' | grep '^[^#]' | xargs cat | wc" to observe the output, since in the end, that's what is really fed to the compiler. I overall found that metric to be a relatively accurate representation of an expected build time. It's particularly interesting because it's much faster to obtain than a full build and can easily show you that some optimizations have absolutely zero effect (typically because most includes are guarded and what's not included at some place will be at another one).

In my project I noticed that the total preprocessed size was initially around 50-60 times larger than the total C+H files. After optimizing it went down to around 20 times, which is roughly in line with the build time savings.

Just my two cents, kudos for working on this!
Willy

Greg Kroah-Hartman

maintainer

2022-01-04 13:34 UTC #16 lore raw

Quoted 2 lines · Ingo Molnar

There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:

<snip>

Quoted 1 line

3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()

Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.

thanks,

greg k-h

Ingo Molnar

author

2022-01-04 13:54 UTC #17 lore raw

PATCH 1/1 headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 10 lines · Greg Kroah-Hartman

Quoted 2 lines · Ingo Molnar
There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:
<snip>
Quoted 1 line
3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()
Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.

Sure - here you go!

Thanks,

Ingo

=============================>
From: Ingo Molnar <[email protected]>
Date: Sun, 29 Aug 2021 09:18:53 +0200
Subject: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

This was the only usage of <linux/kref_api.h> in <linux/kobject_api.h>, so we'll able to decouple the two after this change.

Signed-off-by Ingo Molnar <[email protected]>

---
 drivers/base/core.c     | 17 +++++++++++++++++
 include/linux/kobject.h | 17 -----------------
 2 files changed, 17 insertions(+), 17 deletions(-)

drivers/base/core.c +17 -0

index fd034d742447..e1f2a5791c0e 100644
@@ -3029,6 +3029,23 @@ static inline struct kobject *get_glue_dir(struct device *dev)
 	return dev->kobj.parent;
 }
 
+/**
+ * kobject_has_children - Returns whether a kobject has children.
+ * @kobj: the object to test
+ *
+ * This will return whether a kobject has other kobjects as children.
+ *
+ * It does NOT account for the presence of attribute files, only sub
+ * directories. It also assumes there is no concurrent addition or
+ * removal of such children, and thus relies on external locking.
+ */
+static inline bool kobject_has_children(struct kobject *kobj)
+{
+	WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
+
+	return kobj->sd && kobj->sd->dir.subdirs;
+}
+
 /*
  * make sure cleaning up dir as the last step, we need to make
  * sure .release handler of kobject is run with holding the

include/linux/kobject.h +0 ~~-17~~

index efd56f990a46..e1c600a377f7 100644
@@ -117,23 +117,6 @@ extern void kobject_get_ownership(struct kobject *kobj,
 				  kuid_t *uid, kgid_t *gid);
 extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
 
-/**
- * kobject_has_children - Returns whether a kobject has children.
- * @kobj: the object to test
- *
- * This will return whether a kobject has other kobjects as children.
- *
- * It does NOT account for the presence of attribute files, only sub
- * directories. It also assumes there is no concurrent addition or
- * removal of such children, and thus relies on external locking.
- */
-static inline bool kobject_has_children(struct kobject *kobj)
-{
-	WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
-
-	return kobj->sd && kobj->sd->dir.subdirs;
-}
-
 struct kobj_type {
 	void (*release)(struct kobject *kobj);
 	const struct sysfs_ops *sysfs_ops;

Ingo Molnar

author

2022-01-04 14:05 UTC #13 lore raw

PATCH 1/1 per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets

Quoted 20 lines · Greg Kroah-Hartman

Quoted 12 lines
Techniques used by the fast-headers tree to reduce header size & dependencies:
- Aggressive decoupling of high level headers from each other, starting with <linux/sched.h>. Since 'struct task_struct' is a union of many subsystems, there's a new "per_task" infrastructure modeled after the per_cpu framework, which creates fields in task_struct without having to modify sched.h or the 'struct task_struct' type:
            DECLARE_PER_TASK(type, name);
            ...
            per_task(current, name) = val;
Quoted 7 lines
The per_task() facility then seamlessly creates an offset into the task_struct->per_task_area[] array, and uses the asm-offsets.h mechanism to create offsets into it early in the build.
There's no runtime overhead disadvantage from using per_task() framework, the generated code is functionally equivalent to types embedded in task_struct.

Quoted 6 lines

This is "interesting", but how are you going to keep the kernel/sched/per_task_area_struct_defs.h and struct task_struct_per_task definition in sync? It seems that you manually created this (which is great for testing), but over the long-term, trying to manually determine what needs to be done here to keep everything lined up properly is going to be a major pain.

On a second thought, I found a solution for this problem and implemented it
- delta patch attached.

The idea is to unify the two files into a single 'template' definition in:

kernel/sched/per_task_area_struct_template.h

... with the following, slightly non-standard syntax:

 #ifdef CONFIG_THREAD_INFO_IN_TASK
	/*
	 * For reasons of header soup (see current_thread_info()), this
	 * must be the first element of task_struct.
	 */
	DEF(	struct thread_info,		ti						);
 #endif
	DEF(	void *,				stack						);
	DEF(	refcount_t,			usage						);

	/* Per task flags (PF_*), defined further below: */
	DEF(	unsigned int,			flags						);
	DEF(	unsigned int,			ptrace						);

This looks 'almost' like a C structure definition - but is wrapped in the DEF() macro.

Once we have that template, we can use it both to generate the 'struct task_struct_per_task' definition, and to pick up the field offsets for the per_task() asm-offsets.h machinery.

The advantage is that it solves the problems you mentioned above: the per-task structure and the offset definitions can never get out of sync - the #ifdefs and the field names will always match.

It's also net reduction in code:

    3 files changed, 216 insertions(+), 341 deletions(-)

Does this approach look better to you?

This patch builds and boots fine in the latest -fast-headers tree.

I'm still of two minds about whether to keep the per-task structure tucked away in kernel/sched/, hopefully creating a barrier against spurious additions to task_struct by putting it next to scary scheduler code - or should we move it into a more formal and easier to access/modify location in include/sched/?

Another additional (minor) advantage would be that these uglies:

arch/arm64/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct.h" arch/arm64/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct_defs.h" arch/mips/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct.h" arch/mips/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct_defs.h" arch/sparc/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct.h" arch/sparc/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct_defs.h" arch/x86/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct.h" arch/x86/kernel/asm-offsets.c:#include "../../../kernel/sched/per_task_area_struct_defs.h"

would turn into standard include lines:

  #include <linux/sched/per_task_defs.h>

Thanks,

Ingo

======================>
From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 14:31:12 +0100
Subject: [PATCH] per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets

Greg observed that the 'struct task_struct_per_task definition' and the offset definitions are structural duplicates of each other:

kernel/sched/per_task_area_struct.h
kernel/sched/per_task_area_struct_defs.h

These require care during maintenance and could get out of sync.

To address this problem, introduce a single definition template:

kernel/sched/per_task_area_template.h

And use the template and different preprocessor macros to implement the two pieces of functionality.

The syntax in the template is C-alike struct field definitions, wrapped in the DEF() and DEF_A() macros:

 #ifdef CONFIG_THREAD_INFO_IN_TASK
	/*
	 * For reasons of header soup (see current_thread_info()), this
	 * must be the first element of task_struct.
	 */
	DEF(	struct thread_info,		ti						);
 #endif
	DEF(	void *,				stack						);
	DEF(	refcount_t,			usage						);

	/* Per task flags (PF_*), defined further below: */
	DEF(	unsigned int,			flags						);
	DEF(	unsigned int,			ptrace						);

Reported-by Greg Kroah-Hartman <[email protected]>

Signed-off-by Ingo Molnar <[email protected]>

---
 kernel/sched/per_task_area_struct.h          | 196 ++------------------------
 kernel/sched/per_task_area_struct_defs.h     | 163 ++--------------------
 kernel/sched/per_task_area_struct_template.h | 198 +++++++++++++++++++++++++++
 3 files changed, 216 insertions(+), 341 deletions(-)

kernel/sched/per_task_area_struct.h +9 ~~-187~~

index fad3c24df500..4508160e49ec 100644
@@ -40,194 +40,16 @@
 
 #include "sched.h"
 
-struct task_struct_per_task {
-#ifdef CONFIG_THREAD_INFO_IN_TASK
-	/*
-	 * For reasons of header soup (see current_thread_info()), this
-	 * must be the first element of task_struct.
-	 */
-	struct thread_info		ti;
-#endif
-	void				*stack;
-	refcount_t			usage;
-	/* Per task flags (PF_*), defined further below: */
-	unsigned int			flags;
-	unsigned int			ptrace;
-
-#ifdef CONFIG_SMP
-	int				on_cpu;
-	struct __call_single_node	wake_entry;
-#ifdef CONFIG_THREAD_INFO_IN_TASK
-	/* Current CPU: */
-	unsigned int			cpu;
-#endif
-	unsigned int			wakee_flips;
-	unsigned long			wakee_flip_decay_ts;
-	struct task_struct		*last_wakee;
-	int				recent_used_cpu;
-	int				wake_cpu;
-#endif
-	int				on_rq;
-	struct sched_class		*sched_class;
-	struct sched_entity		se;
-	struct sched_rt_entity		rt;
-	struct sched_dl_entity		dl;
-
-#ifdef CONFIG_SCHED_CORE
-	struct rb_node			core_node;
-	unsigned long			core_cookie;
-	unsigned int			core_occupation;
-#endif
-
-#ifdef CONFIG_CGROUP_SCHED
-	struct task_group		*sched_task_group;
-#endif
-
-#ifdef CONFIG_UCLAMP_TASK
-	/*
-	 * Clamp values requested for a scheduling entity.
-	 * Must be updated with task_rq_lock() held.
-	 */
-	struct uclamp_se		uclamp_req[UCLAMP_CNT];
-	/*
-	 * Effective clamp values used for a scheduling entity.
-	 * Must be updated with task_rq_lock() held.
-	 */
-	struct uclamp_se		uclamp[UCLAMP_CNT];
-#endif
-
-#ifdef CONFIG_PREEMPT_NOTIFIERS
-	/* List of struct preempt_notifier: */
-	struct hlist_head		preempt_notifiers;
-#endif
-
-#ifdef CONFIG_BLK_DEV_IO_TRACE
-	unsigned int			btrace_seq;
-#endif
-
-	const cpumask_t			*cpus_ptr;
-	cpumask_t			*user_cpus_ptr;
-	cpumask_t			cpus_mask;
-#ifdef CONFIG_TASKS_RCU
-	unsigned long			rcu_tasks_nvcsw;
-	u8				rcu_tasks_holdout;
-	u8				rcu_tasks_idx;
-	int				rcu_tasks_idle_cpu;
-	struct list_head		rcu_tasks_holdout_list;
-#endif /* #ifdef CONFIG_TASKS_RCU */
-	struct sched_info		sched_info;
-
-#ifdef CONFIG_SMP
-	struct plist_node		pushable_tasks;
-	struct rb_node			pushable_dl_tasks;
-#endif
-	/* Per-thread vma caching: */
-	struct vmacache			vmacache;
-
-#ifdef SPLIT_RSS_COUNTING
-	struct task_rss_stat		rss_stat;
-#endif
-	struct restart_block		restart_block;
-	struct prev_cputime		prev_cputime;
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
-	struct vtime			vtime;
-#endif
-#ifdef CONFIG_NO_HZ_FULL
-	atomic_t			tick_dep_mask;
-#endif
-	/* Empty if CONFIG_POSIX_CPUTIMERS=n */
-	struct posix_cputimers		posix_cputimers;
-
-#ifdef CONFIG_POSIX_CPU_TIMERS_TASK_WORK
-	struct posix_cputimers_work	posix_cputimers_work;
-#endif
+/* Simple struct members: */
+#define DEF(type, name)			type name
 
-#ifdef CONFIG_SYSVIPC
-	struct sysv_sem			sysvsem;
-	struct sysv_shm			sysvshm;
-#endif
-	sigset_t			blocked;
-	sigset_t			real_blocked;
-	/* Restored if set_restore_sigmask() was used: */
-	sigset_t			saved_sigmask;
-	struct sigpending		pending;
-	kuid_t				loginuid;
-	struct seccomp			seccomp;
-	/* Protection against (de-)allocation: mm, files, fs, tty, keyrings, mems_allowed, mempolicy: */
-	spinlock_t			alloc_lock;
+/* Array members: */
+#define DEF_A(type, name, size)		type name size
 
-	/* Protection of the PI data structures: */
-	raw_spinlock_t			pi_lock;
-
-#ifdef CONFIG_RT_MUTEXES
-	/* PI waiters blocked on a rt_mutex held by this task: */
-	struct rb_root_cached		pi_waiters;
-#endif
-
-#ifdef CONFIG_DEBUG_MUTEXES
-	/* Mutex deadlock detection: */
-	struct mutex_waiter		*blocked_on;
-#endif
-	kernel_siginfo_t		*last_siginfo;
-#ifdef CONFIG_CPUSETS
-	/* Protected by ->alloc_lock: */
-	nodemask_t			mems_allowed;
-	/* Sequence number to catch updates: */
-	seqcount_spinlock_t		mems_allowed_seq;
-	int				cpuset_mem_spread_rotor;
-	int				cpuset_slab_spread_rotor;
-#endif
-	struct mutex			futex_exit_mutex;
-#ifdef CONFIG_PERF_EVENTS
-	struct perf_event_context	*perf_event_ctxp[perf_nr_task_contexts];
-	struct mutex			perf_event_mutex;
-	struct list_head		perf_event_list;
-#endif
-#ifdef CONFIG_RSEQ
-	struct rseq __user *rseq;
-#endif
-	struct tlbflush_unmap_batch	tlb_ubc;
-
-	refcount_t			rcu_users;
-	struct rcu_head			rcu;
-
-	struct page_frag		task_frag;
-
-#ifdef CONFIG_KCSAN
-	struct kcsan_ctx		kcsan_ctx;
-#ifdef CONFIG_TRACE_IRQFLAGS
-	struct irqtrace_events		kcsan_save_irqtrace;
-#endif
-#endif
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-
-	/*
-	 * Number of functions that haven't been traced
-	 * because of depth overrun:
-	 */
-	atomic_t			trace_overrun;
-
-	/* Pause tracing: */
-	atomic_t			tracing_graph_pause;
-#endif
-#ifdef CONFIG_KMAP_LOCAL
-	struct kmap_ctrl		kmap_ctrl;
-#endif
-	int				pagefault_disabled;
-#ifdef CONFIG_VMAP_STACK
-	struct vm_struct		*stack_vm_area;
-#endif
-#ifdef CONFIG_THREAD_INFO_IN_TASK
-	/* A live task holds one reference: */
-	refcount_t			stack_refcount;
-#endif
-#ifdef CONFIG_KRETPROBES
-	struct llist_head               kretprobe_instances;
-#endif
+struct task_struct_per_task {
+#include "per_task_area_struct_template.h"
+};
 
-	/* CPU-specific state of this task: */
-	struct thread_struct		thread;
+#undef DEF_A
+#undef DEF
 
-	char				_end;
-};

kernel/sched/per_task_area_struct_defs.h +9 ~~-154~~

171 lines not on this page · raw message

kernel/sched/per_task_area_struct_template.h new file +198 -0

198 lines not on this page · raw message

Ingo Molnar

author

2022-01-04 14:10 UTC #6 lore raw

PATCH 1/1 per_task: Remove the PER_TASK_BYTES hard-coded constant

Quoted 10 lines · Ingo Molnar

There's one thing ugly about it, the fixed PER_TASK_BYTES limit, I plan to make ->per_task_array[] the last field of task_struct, i.e. change it to:
        u8                              per_task_area[];
This actually became possible through the fixing of the x86 FPU code in the following fast-headers commit:
4ae0f28bc1c8 headers/deps: x86/fpu: Make task_struct::thread constant size

So I implemented this approach - the patch below removes the PER_TASK_BYTES hard-coded limit.

( Didn't make it variable size via per_task_area[] though - we *do* know
its size after all at build time already, and known-size structures are better in general than tail-variable-array solutions:

- They work better with static checkers,
- and we actually want the offsets into thread_info to be small on embedded platforms

etc. )

Thanks,

Ingo

============================>
From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 13:48:05 +0100
Subject: [PATCH] per_task: Remove the PER_TASK_BYTES hard-coded constant

- Also remove the unnecessary <linux/sched/per_task_types.h> header.

Not-Signed-off-by-yet: Ingo Molnar <[email protected]>

---
 include/linux/sched/per_task.h       | 3 ++-
 include/linux/sched/per_task_types.h | 7 -------
 kernel/sched/core.c                  | 4 ++++
 3 files changed, 6 insertions(+), 8 deletions(-)

include/linux/sched/per_task.h +2 -1

index e20837e82681..a10538713a26 100644
@@ -37,7 +37,6 @@
  * A build-time check ensures that we haven't run out of available space.
  */
 
-#include <linux/sched/per_task_types.h>
 #include <linux/compiler.h>
 
 #ifndef __PER_TASK_GEN

@@ -61,4 +60,6 @@
 
 #define per_task_container_of(var, name)	container_of((void *)(var) - per_task_offset(name), struct task_struct, per_task_area[0])
 
+#define PER_TASK_BYTES				(per_task_offset(_end))
+
 #endif /* _LINUX_SCHED_PER_TASK_H */

include/linux/sched/per_task_types.h deleted +0 -7

deleted file mode 100644
index 8af8c10f8dae..000000000000
@@ -1,7 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LINUX_SCHED_PER_TASK_TYPES_H
-#define _LINUX_SCHED_PER_TASK_TYPES_H
-
-#define PER_TASK_BYTES 8192
-
-#endif /* _LINUX_SCHED_PER_TASK_TYPES_H */

kernel/sched/core.c +4 -0

index bc38b19f6398..fdb5b99ae6e0 100644
@@ -89,6 +89,8 @@
 #include "../../fs/io-wq.h"
 #include "../smpboot.h"
 
+#include "../../../kernel/sched/per_task_area_struct.h"
+
 DEFINE_PER_TASK(unsigned int,				flags);
 
 #ifdef CONFIG_THREAD_INFO_IN_TASK

@@ -9481,6 +9483,8 @@ void __init per_task_init(void)
 {
 	unsigned long per_task_bytes = per_task_offset(_end);
 
+	printk("per_task: sizeof(struct task_struct):          %ld bytes\n", sizeof(struct task_struct));
+	printk("per_task: sizeof(struct task_struct_per_task): %ld bytes\n", sizeof(struct task_struct_per_task));
 	printk("per_task: Using %ld per_task bytes, %ld bytes available\n", per_task_bytes, (long)PER_TASK_BYTES);
 
 	BUG_ON(per_task_offset(_end) > PER_TASK_BYTES);

kernel test robot

build bot

2022-01-04 15:05 UTC #27 lore raw

Re: [PATCH] headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

I love your patch! Yet something to improve:

Hi Ingo,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.16-rc8 next-20211224]
[If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Ingo-Molnar/headers-deps-dcache-Move-the-____cacheline_aligned-attribute-to-the-head-of-the-definition/20220104-190351
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c9e6606c7fe92b50a02ce51dda82586ebdf99b48
config: arm64-buildonly-randconfig-r004-20220104 (https://download.01.org/0day-ci/archive/20220104/202201042231.vdt1cNrS-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b50fea47b6c454581fce89af359f3afe5154986c)

reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/0day-ci/linux/commit/a9357af49d3cae2b1b4b8bbb7f1adf9ed381bf46
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Ingo-Molnar/headers-deps-dcache-Move-the-____cacheline_aligned-attribute-to-the-head-of-the-definition/20220104-190351 git checkout a9357af49d3cae2b1b4b8bbb7f1adf9ed381bf46
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/phy/amlogic/ lib/

If you fix the issue, kindly add following tag as appropriate

Reported-by kernel test robot <[email protected]>

All error/warnings (new ones prefixed by >>):

In file included from arch/arm64/kernel/asm-offsets.c:10:
In file included from include/linux/arm_sdei.h:8:
In file included from include/acpi/ghes.h:5:
In file included from include/acpi/apei.h:9:
In file included from include/linux/acpi.h:15:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^

1 warning generated.
--
In file included from drivers/phy/amlogic/phy-meson-g12a-usb2.c:16:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   drivers/phy/amlogic/phy-meson-g12a-usb2.c:311:17: warning: cast to smaller integer type 'enum meson_soc_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
           priv->soc_id = (enum meson_soc_id)of_device_get_match_data(&pdev->dev);
                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

2 warnings generated.
--
In file included from lib/radix-tree.c:15:
In file included from include/linux/cpu.h:17:
In file included from include/linux/node.h:18:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/radix-tree.c:288:6: warning: no previous prototype for function 'radix_tree_node_rcu_free' [-Wmissing-prototypes]
   void radix_tree_node_rcu_free(struct rcu_head *head)
        ^

lib/radix-tree.c:288:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void radix_tree_node_rcu_free(struct rcu_head *head)
^
static
2 warnings generated.
--
In file included from lib/test_bitops.c:9:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^

1 error generated.
--
In file included from lib/test_ida.c:10:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/test_ida.c:16:6: warning: no previous prototype for function 'ida_dump' [-Wmissing-prototypes]
   void ida_dump(struct ida *ida) { }
        ^

lib/test_ida.c:16:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void ida_dump(struct ida *ida) { }
^
static
2 warnings generated.
--
In file included from lib/test_printf.c:10:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/test_printf.c:157:52: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
           test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
                                  ~~~~                       ^
                                  %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:157:55: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
           test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
                                       ~~~~                     ^
                                       %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:157:58: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
           test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
                                            ~~~~                   ^~~
                                            %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:157:63: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
           test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
                                                 ~~~~                   ^~~
                                                 %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:157:68: warning: format specifies type 'unsigned char' but the argument has type 'int' [-Wformat]
           test("0|1|1|128|255", "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1);
                                                      ~~~~                   ^~
                                                      %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:158:52: warning: format specifies type 'char' but the argument has type 'int' [-Wformat]
           test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
                                  ~~~~                       ^
                                  %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:158:55: warning: format specifies type 'char' but the argument has type 'int' [-Wformat]
           test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
                                       ~~~~                     ^
                                       %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:158:58: warning: format specifies type 'char' but the argument has type 'int' [-Wformat]
           test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
                                            ~~~~                   ^~~
                                            %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:158:63: warning: format specifies type 'char' but the argument has type 'int' [-Wformat]
           test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
                                                 ~~~~                   ^~~
                                                 %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:158:68: warning: format specifies type 'char' but the argument has type 'int' [-Wformat]
           test("0|1|1|-128|-1", "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1);
                                                      ~~~~                   ^~
                                                      %d
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:159:41: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
           test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627);
                                     ~~~          ^~~~
                                     %o
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:159:47: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
           test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627);
                                        ~~~             ^~~~
                                        %o
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~
   lib/test_printf.c:159:53: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
           test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627);
                                           ~~~~               ^~~~~~
                                           %#o
   lib/test_printf.c:137:40: note: expanded from macro 'test'
           __test(expect, strlen(expect), fmt, ##__VA_ARGS__)
                                          ~~~    ^~~~~~~~~~~

14 warnings generated.
--
In file included from lib/crc32test.c:28:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/crc32test.c:674:13: warning: variable 'crc' set but not used [-Wunused-but-set-variable]
           static u32 crc;
                      ^
   lib/crc32test.c:754:13: warning: variable 'crc' set but not used [-Wunused-but-set-variable]
           static u32 crc;
                      ^

3 warnings generated.
--
In file included from lib/test_rhashtable.c:17:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/test_rhashtable.c:451:18: warning: variable 'insert_retries' set but not used [-Wunused-but-set-variable]
           unsigned int i, insert_retries = 0;
                           ^

2 warnings generated.
--
In file included from lib/devmem_is_allowed.c:11:
In file included from include/linux/mm.h:717:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/devmem_is_allowed.c:20:5: warning: no previous prototype for function 'devmem_is_allowed' [-Wmissing-prototypes]
   int devmem_is_allowed(unsigned long pfn)
       ^

lib/devmem_is_allowed.c:20:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int devmem_is_allowed(unsigned long pfn)
^
static
2 warnings generated.
--
In file included from lib/lz4/lz4_decompress.c:39:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   lib/lz4/lz4_decompress.c:506:5: warning: no previous prototype for function 'LZ4_decompress_safe_forceExtDict' [-Wmissing-prototypes]
   int LZ4_decompress_safe_forceExtDict(const char *source, char *dest,
       ^

lib/lz4/lz4_decompress.c:506:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int LZ4_decompress_safe_forceExtDict(const char *source, char *dest,
^
static
2 warnings generated.
--
In file included from arch/arm64/kernel/asm-offsets.c:10:
In file included from include/linux/arm_sdei.h:8:
In file included from include/acpi/ghes.h:5:
In file included from include/acpi/apei.h:9:
In file included from include/linux/acpi.h:15:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/arm64/include/asm/elf.h:141:
In file included from include/linux/fs.h:8:

>> include/linux/dcache.h:137:1: warning: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
   ____cacheline_aligned
   ^
   include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
   #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
                                                ^
   1 warning generated.
   arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning: no previous prototype for function '__kernel_clock_gettime' [-Wmissing-prototypes]
   int __kernel_clock_gettime(clockid_t clock,
       ^
   arch/arm64/kernel/vdso/vgettimeofday.c:9:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __kernel_clock_gettime(clockid_t clock,
   ^
   static 
   arch/arm64/kernel/vdso/vgettimeofday.c:15:5: warning: no previous prototype for function '__kernel_gettimeofday' [-Wmissing-prototypes]
   int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
       ^
   arch/arm64/kernel/vdso/vgettimeofday.c:15:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
   ^
   static 
   arch/arm64/kernel/vdso/vgettimeofday.c:21:5: warning: no previous prototype for function '__kernel_clock_getres' [-Wmissing-prototypes]
   int __kernel_clock_getres(clockid_t clock_id,
       ^

arch/arm64/kernel/vdso/vgettimeofday.c:21:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __kernel_clock_getres(clockid_t clock_id,
^
static
3 warnings generated.

vim +137 include/linux/dcache.h

136

 > 137	____cacheline_aligned

138 struct dentry_operations {
139 int (*d_revalidate)(struct dentry *, unsigned int);
140 int (*d_weak_revalidate)(struct dentry *, unsigned int);
141 int (*d_hash)(const struct dentry *, struct qstr *);
142 int (*d_compare)(const struct dentry *,
143 unsigned int, const char *, const struct qstr *);
144 int (*d_delete)(const struct dentry *);
145 int (*d_init)(struct dentry *);
146 void (*d_release)(struct dentry *);
147 void (*d_prune)(struct dentry *);
148 void (*d_iput)(struct dentry *, struct inode *);
149 char *(*d_dname)(struct dentry *, char *, int);
150 struct vfsmount *(*d_automount)(struct path *);
151 int (*d_manage)(const struct path *, bool);
152 struct dentry *(*d_real)(struct dentry *, const struct inode *);
153 };
154

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

Greg Kroah-Hartman

maintainer

2022-01-04 15:10 UTC #18 lore raw

Re: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 7 lines · Ingo Molnar

Quoted 4 lines · Greg Kroah-Hartman
Quoted 2 lines · Ingo Molnar
There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:

Quoted 8 lines

Quoted 6 lines
<snip>
Quoted 1 line
3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()
Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.
Sure - here you go!

I just picked it out of your git tree already :)

Along those lines, any objection to me taking at least one other one? 3f8757078d27 ("headers/prep: usb: gadget: Fix namespace collision") and 6fb993fa3832 ("headers/deps: USB: Optimize <linux/usb/ch9.h> dependencies, remove <linux/device.h>") look like I can take now into my USB tree with no problems.

thanks,

greg k-h

Greg Kroah-Hartman

maintainer

2022-01-04 15:14 UTC #19 lore raw

Re: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 17 lines · Greg Kroah-Hartman

Quoted 7 lines · Ingo Molnar
Quoted 4 lines · Greg Kroah-Hartman
Quoted 2 lines · Ingo Molnar
There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:
Quoted 8 lines
Quoted 6 lines
<snip>
Quoted 1 line
3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()
Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.
Sure - here you go!

Quoted 7 lines

I just picked it out of your git tree already :)
Along those lines, any objection to me taking at least one other one? 3f8757078d27 ("headers/prep: usb: gadget: Fix namespace collision") and 6fb993fa3832 ("headers/deps: USB: Optimize <linux/usb/ch9.h> dependencies, remove <linux/device.h>") look like I can take now into my USB tree with no problems.

Also these look good to go now:
bae9ddd98195 ("headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h") c027175b37e5 ("headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c")

thanks,

greg k-h

Andy Shevchenko

2022-01-04 15:15 UTC #7 lore raw

Re: [PATCH] per_task: Remove the PER_TASK_BYTES hard-coded constant

Quoted 5 lines · Ingo Molnar

* Ingo Molnar <[email protected]> wrote:
+++ b/kernel/sched/core.c
+#include "../../../kernel/sched/per_task_area_struct.h"

#include "per_task_area_struct.h" ?

Signature · 2 lines

With Best Regards,
Andy Shevchenko

Andy Shevchenko

2022-01-04 16:07 UTC #54 lore raw

Quoted 13 lines · Ingo Molnar

I'm pleased to announce the first public version of my new "Fast Kernel Headers" project that I've been working on since late 2020, which is a comprehensive rework of the Linux kernel's header hierarchy & header dependencies, with the dual goals of:
- speeding up the kernel build (both absolute and incremental build times)
- decoupling subsystem type & API definitions from each other
The fast-headers tree consists of over 25 sub-trees internally, spanning over 2,200 commits, which can be found here:

Quoted 6 lines

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git master
As most kernel developers know, there's around ~10,000 main .h headers in the Linux kernel, in the include/ and arch/*/include/ hierarchies. Over the last 30+ years they have grown into a complicated & painful set of cross-dependencies we are affectionately calling 'Dependency Hell'.

In the 64e013748e61 ("headers/deps: Optimize <linux/kernel.h>") the linux/container_of.h and linux/stdarg.h are moved around (in the linux/kernel.h) without any explanation in the commit message. Is it necessary? If so, can you add a background note.

Signature · 2 lines

With Best Regards,
Andy Shevchenko

Andy Shevchenko

2022-01-04 16:19 UTC #55 lore raw

Quoted 13 lines · Ingo Molnar

I'm pleased to announce the first public version of my new "Fast Kernel Headers" project that I've been working on since late 2020, which is a comprehensive rework of the Linux kernel's header hierarchy & header dependencies, with the dual goals of:
- speeding up the kernel build (both absolute and incremental build times)
- decoupling subsystem type & API definitions from each other
The fast-headers tree consists of over 25 sub-trees internally, spanning over 2,200 commits, which can be found here:

Quoted 6 lines

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git master
As most kernel developers know, there's around ~10,000 main .h headers in the Linux kernel, in the include/ and arch/*/include/ hierarchies. Over the last 30+ years they have grown into a complicated & painful set of cross-dependencies we are affectionately calling 'Dependency Hell'.

$ git grep -n -w kernel.h mingo/sched/headers -- include/ | wc -l
138
$ git grep -n -w kernel.h next/master -- include/ | wc -l
96

Can we rather split kernel.h more? In some cases kernel.h is used just as a bundle instead of ~2-3 headers.

And I can't get why kernel.h is returned in the drm headers. AFAICT there are no dependencies:

mingo/sched/headers:include/drm/drm_gem_ttm_helper.h:6:#include <linux/kernel.h> mingo/sched/headers:include/drm/drm_gem_vram_helper.h:15:#include <linux/kernel.h> /* for container_of() */ mingo/sched/headers:include/drm/drm_mm.h:44:#include <linux/kernel.h> mingo/sched/headers:include/drm/drm_property.h:28:#include <linux/kernel.h> mingo/sched/headers:include/drm/intel-gtt.h:9:#include <linux/kernel.h>

Ah, it may be due to base on the vanilla rather than on next, it would be nice to see this rebased on top of v5.17-rc1 when it's out.

Signature · 2 lines

With Best Regards,
Andy Shevchenko

Nick Desaulniers

2022-01-04 17:26 UTC #32 lore raw

Quoted 68 lines · Ingo Molnar

Quoted 5 lines · Nathan Chancellor
Hi Ingo,
On Sun, Jan 02, 2022 at 10:57:35PM +0100, Ingo Molnar wrote:
I took the series for a spin with clang and GCC on arm64 and x86_64 and I found a few warnings/errors.
Thank you!
Quoted 6 lines
1. Position of certain attributes
In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):
Quoted 12 lines
In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
Yeah, so this is a *really* stupid warning from Clang.
Putting the attribute after 'struct' risks the hard to track down bugs when a <linux/cache.h> inclusion is missing, which scenario I pointed out in this commit:
headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition
When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:
ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.
There were no compile time errors, only link time errors.
Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:
In file included from ./include/linux/fs.h:9,
from ./include/linux/fsverity.h:14, from fs/verity/fsverity_private.h:18, from fs/verity/read_metadata.c:8:
./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
132 | ____cacheline_aligned
| ^
| ;
133 | struct dentry_operations {
| ~~~~~~

Quoted 5 lines

No change in functionality.
Signed-off-by Ingo Molnar <[email protected]>
Can this Clang warning be disabled?

Clang is warning that the attribute will be ignored because of that positioning. If you disable the warning, code will probably stop working as intended. This warning has at least been helping us make the kernel coding style more consistent.

This made me think of d5b421fe02827 ("docs: Explain the desired position of function attributes"), where we adding some text to Documentation/process/coding-style.rst about the positioning of __attribute__'s in function signatures, but I guess this case is data. We probably should add something to the coding style about attributes on data, too.

The C standards body is also working on standardizing attributes; at the least I expect some of these things to be ironed out more soon.

Quoted 5 lines

Quoted 2 lines
2. Error with CONFIG_SHADOW_CALL_STACK
So this feature depends on Clang:

Quoted 7 lines

# Supported by clang >= 7.0
config CC_HAVE_SHADOW_CALL_STACK
         def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
No way to activate it under my GCC cross-build toolchain, right?
But ... I hacked the build mode on with GCC using this patch:

Dan Li is working on a GCC patch. If you're up for building GCC from source:
https://gcc.gnu.org/pipermail/gcc-patches/2021-December/586204.html

This is a really cool series Ingo. I'm sure Arnd has seen it by now, but Arnd has been thinking about this area a lot, too. I haven't but I have played with running "include what you use" on the kernel sources; Kconfig being the biggest impediment to that approach.

To me, I'm most nervous about "backsliding;" let's say this work lands, at some point probably years in the future, I assume without any form of automation that we might find ourselves at a similar point of header dependencies getting all tangled again.

What are your thoughts on where/how/what we could automate to try to help developers in the future keep their header dependencies simpler? (Sorry if this was already answered in the cover letter)

It would be really useful if you were planning a talk at something like plumbers how you go about making these changes. I really hope once others understand your workflow that we might help with some form of automation. Nice work!
--
Thanks,
~Nick Desaulniers

Nathan Chancellor

maintainer

2022-01-04 17:50 UTC #34 lore raw

https://metal.equinix.com/product/servers/c3-large-arm/

Quoted 42 lines · Ingo Molnar

Quoted 24 lines · Nathan Chancellor
Hi Ingo,
Quoted 6 lines · Ingo Molnar
Before going into details about how this tree solves 'dependency hell' exactly, here's the current kernel build performance gain with CONFIG_FAST_HEADERS=y enabled, (and with CONFIG_KALLSYMS_FAST=y enabled as well - see below), using a stock x86 Linux distribution's .config with all modules built into the vmlinux:
Quoted 8 lines
#
# Performance counter stats for 'make -j96 vmlinux' (3 runs):
#
# (Elapsed time in seconds):
#
  v5.16-rc7:            231.34 +- 0.60 secs, 15.5 builds/hour    # [ vanilla baseline ]
  -fast-headers-v1:     129.97 +- 0.51 secs, 27.7 builds/hour    # +78.0% improvement
This is really impressive; as someone who constantly builds large kernels for test coverage, I am excited about less time to get results. Testing on an 80-core arm64 server (the fastest machine I have access to at the moment) with LLVM, I can see anywhere from 18% to 35% improvement.
Quoted 7 lines
Benchmark 1: ARCH=arm64 defconfig (linux)
Time (mean ± σ): 97.159 s ± 0.246 s [User: 4828.383 s, System: 611.256 s]
Range (min … max): 96.900 s … 97.648 s 10 runs
Benchmark 2: ARCH=arm64 defconfig (linux-fast-headers)
Time (mean ± σ): 76.300 s ± 0.107 s [User: 3149.986 s, System: 436.487 s]
Range (min … max): 76.117 s … 76.467 s 10 runs
That looks good, thanks for giving it a test, and thanks for all the fixes! :-)
Note that on ARM64 the elapsed time improvement is 'only' 18-35%, because the triple-linking of vmlinux serializes much of the of a build & ARM64 doesn't have the kallsyms-objtool feature yet.

Quoted 7 lines

But we can already see how much faster it became, from the user+system time spent building the kernel:
           vanilla: 4828.383 s + 611.256 s = 5439.639 s
-fast-headers-v1: 3149.986 s + 436.487 s = 3586.473 s
That's a +51% speedup. :-)

Quoted 85 lines

With CONFIG_KALLSYMS_FAST=y on x86, the final link gets faster by about 60%-70%, so the header improvements will more directly show up in elapsed time as well.
Plus I spent more time looking at x86 header bloat than at ARM64 header bloat. In the end I think the improvement could probably moved into the broad 60-70% range that I see on x86.
All the other ARM64 tests show a 37%-43% improvement in CPU time used:
Quoted 7 lines
Benchmark 1: ARCH=arm64 allmodconfig (linux)
Time (mean ± σ): 390.106 s ± 0.192 s [User: 23893.382 s, System: 2802.413 s]
Range (min … max): 389.942 s … 390.513 s 7 runs
Benchmark 2: ARCH=arm64 allmodconfig (linux-fast-headers)
Time (mean ± σ): 288.066 s ± 0.621 s [User: 16436.098 s, System: 2117.352 s]
Range (min … max): 287.131 s … 288.982 s 7 runs
# (23893.382+2802.413)/(16436.098+2117.352) = +43% in throughput.
Quoted 7 lines
Benchmark 1: ARCH=arm64 allyesconfig (linux)
Time (mean ± σ): 557.752 s ± 1.019 s [User: 21227.404 s, System: 2226.121 s]
Range (min … max): 555.833 s … 558.775 s 7 runs
Benchmark 2: ARCH=arm64 allyesconfig (linux-fast-headers)
Time (mean ± σ): 473.815 s ± 1.793 s [User: 15351.991 s, System: 1689.630 s]
Range (min … max): 471.542 s … 476.830 s 7 runs
# (21227.404+2226.121)/(15351.991+1689.630) = +37%
Quoted 7 lines
Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 41.122 s ± 0.190 s [User: 1700.206 s, System: 205.555 s]
Range (min … max): 40.966 s … 41.515 s 7 runs
Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 36.357 s ± 0.183 s [User: 1134.252 s, System: 152.396 s]
Range (min … max): 35.983 s … 36.534 s 7 runs
# (1700.206+205.555)/(1134.252+152.396) = +48%
Quoted 3 lines
Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran
    1.13 ± 0.01 times faster than 'ARCH=x86_64 defconfig (linux)'
Now this x86-defconfig result you got is a bit weird - it *should* have been around ~50% faster on x86 in terms of elapsed time too.
Here's how x86-64 defconfig looks like on my system - with 128 GB RAM & fast NVDIMMs and 64 CPUs:
   #
   # -v5.16-rc8:
   #

   $ perf stat --repeat 3 -e instructions,cycles,cpu-clock --sync --pre "make clean >/dev/null" make -j96 vmlinux >/dev/null

   Performance counter stats for 'make -j96 vmlinux' (3 runs):

   4,906,953,379,372      instructions              #    0.90  insn per cycle           ( +-  0.00% )
   5,475,163,448,391      cycles                    #    3.898 GHz                      ( +-  0.01% )
        1,404,614.64 msec cpu-clock                 #   45.864 CPUs utilized            ( +-  0.01% )

             30.6258 +- 0.0337 seconds time elapsed  ( +-  0.11% )

   #
   # -fast-headers-v1:
   #

   $ make defconfig
   $ grep KALLSYMS_FAST .config
   CONFIG_KALLSYMS_FAST=y

   $ perf stat --repeat 3 -e instructions,cycles,cpu-clock --sync --pre "make clean >/dev/null" make -j96 vmlinux >/dev/null

    Performance counter stats for 'make -j96 vmlinux' (3 runs):

     3,500,079,269,120      instructions              #    0.90  insn per cycle           ( +-  0.00% )
     3,872,081,278,824      cycles                    #    3.895 GHz                      ( +-  0.10% )
            993,448.13 msec cpu-clock                 #   47.306 CPUs utilized            ( +-  0.10% )

             21.0004 +- 0.0265 seconds time elapsed  ( +-  0.13% )

Quoted 4 lines

That's a +45.8% speedup in elapsed time, and a +41.4% improvement in cpu-clock utilization.
I'm wondering whether your system has some sort of bottleneck?

Yes, it is entirely possible. That testing was done on Equinix's c3.large.arm server and I have noticed at times that single threaded tasks seems to take a little bit longer than on my x86_64 box.

The all{mod,yes}config tests on that box had a much more noticeable improvement, along the lines of what you were expecting:

Benchmark 1: ARCH=x86_64 allmodconfig (linux)
Time (mean ± σ): 387.575 s ± 0.288 s [User: 23916.296 s, System: 2814.850 s]
Range (min … max): 387.252 s … 388.295 s 10 runs

Benchmark 2: ARCH=x86_64 allmodconfig (linux-fast-headers)
Time (mean ± σ): 255.934 s ± 0.972 s [User: 15130.494 s, System: 2095.091 s]
Range (min … max): 254.655 s … 257.357 s 10 runs

Summary
'ARCH=x86_64 allmodconfig (linux-fast-headers)' ran

    1.51 ± 0.01 times faster than 'ARCH=x86_64 allmodconfig (linux)'

# (23916.296+2814.850)/(15130.494+2095.091) = +55.18%

Benchmark 1: ARCH=x86_64 allyesconfig (linux)
Time (mean ± σ): 568.027 s ± 1.071 s [User: 21985.096 s, System: 2357.516 s]
Range (min … max): 566.769 s … 569.801 s 10 runs

Benchmark 2: ARCH=x86_64 allyesconfig (linux-fast-headers)
Time (mean ± σ): 381.248 s ± 0.919 s [User: 14916.766 s, System: 1728.218 s]
Range (min … max): 379.746 s … 382.852 s 10 runs

Summary
'ARCH=x86_64 allyesconfig (linux-fast-headers)' ran

    1.49 ± 0.00 times faster than 'ARCH=x86_64 allyesconfig (linux)'

# (21985.096+2357.516)/(14916.766+1728.218) = +46.25%

Quoted 15 lines

One thing I do though when running benchmarks is to switch the cpufreq governor to 'performance', via something like:

   NR_CPUS=$(nproc --all)

   curr=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
   next=performance

   echo "# setting all $NR_CPUS CPUs from '"$curr"' to the '"$next"' governor"

   for ((cpu=0; cpu<$NR_CPUS; cpu++)); do
     G=/sys/devices/system/cpu/cpu$cpu/cpufreq/scaling_governor
     [ -f $G ] && echo $next > $G
   done

Quoted 5 lines

This minimizes the amount of noise across iterations and makes the results more dependable:
             30.6258 +- 0.0337 seconds time elapsed  ( +-  0.11% )
             21.0004 +- 0.0265 seconds time elapsed  ( +-  0.13% )

Good point. With my main box (AMD EPYC 7502P), with the performance governor...

GCC:

Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 48.685 s ± 0.049 s [User: 1969.835 s, System: 204.166 s]
Range (min … max): 48.620 s … 48.782 s 10 runs

Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 46.797 s ± 0.119 s [User: 1403.854 s, System: 154.336 s]
Range (min … max): 46.620 s … 47.052 s 10 runs

Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran

    1.04 ± 0.00 times faster than 'ARCH=x86_64 defconfig (linux)'

LLVM:

Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 51.816 s ± 0.079 s [User: 2208.577 s, System: 200.410 s]
Range (min … max): 51.671 s … 51.900 s 10 runs

Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 46.806 s ± 0.062 s [User: 1438.972 s, System: 154.846 s]
Range (min … max): 46.696 s … 46.917 s 10 runs

Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran

    1.11 ± 0.00 times faster than 'ARCH=x86_64 defconfig (linux)'

$ rg KALLSYMS .config
246:CONFIG_KALLSYMS=y
247:# CONFIG_KALLSYMS_ALL is not set
248:CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
249:CONFIG_KALLSYMS_BASE_RELATIVE=y
250:CONFIG_KALLSYMS_FAST=y
706:CONFIG_HAVE_OBJTOOL_KALLSYMS=y

It seems like everything is working right but maybe the build is so short that there just is not much time for the difference to be as apparent?

Quoted 7 lines

Quoted 7 lines
Quoted 6 lines
With the fast-headers kernel that's down to ~36,000 lines of code, almost a factor of 3 reduction:
# fast-headers-v1:
kepler:~/mingo.tip.git> wc -l kernel/pid.i
35941 kernel/pid.i

Quoted 8 lines

Quoted 4 lines
Coming from someone who often has to reduce a preprocessed kernel source file with creduce/cvise to report compiler bugs, this will be a very welcomed change, as those tools will have to do less work, and I can get my reports done faster.
That's nice, didn't think of that side effect.
Could you perhaps measure this too, to see how much of a benefit it is?

Yes, next time that I run into a bug that I have to use those tools on, I will see if I can benchmark the difference!

Quoted 63 lines

Quoted 4 lines
########################################################################
I took the series for a spin with clang and GCC on arm64 and x86_64 and I found a few warnings/errors.
Thank you!
Quoted 6 lines
1. Position of certain attributes
In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):
Quoted 12 lines
In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
Yeah, so this is a *really* stupid warning from Clang.
Putting the attribute after 'struct' risks the hard to track down bugs when a <linux/cache.h> inclusion is missing, which scenario I pointed out in this commit:
headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition
When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:
ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.
There were no compile time errors, only link time errors.
Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:
In file included from ./include/linux/fs.h:9,
from ./include/linux/fsverity.h:14, from fs/verity/fsverity_private.h:18, from fs/verity/read_metadata.c:8:
./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
132 | ____cacheline_aligned
| ^
| ;
133 | struct dentry_operations {
| ~~~~~~

Quoted 5 lines

No change in functionality.
Signed-off-by Ingo Molnar <[email protected]>
Can this Clang warning be disabled?

I'll comment on this in the other thread.

Quoted 153 lines

Quoted 1 line
2. Error with CONFIG_SHADOW_CALL_STACK
So this feature depends on Clang:
# Supported by clang >= 7.0
config CC_HAVE_SHADOW_CALL_STACK
         def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
No way to activate it under my GCC cross-build toolchain, right?
But ... I hacked the build mode on with GCC using this patch:
From: Ingo Molnar <[email protected]>
Date: Tue, 4 Jan 2022 11:26:09 +0100
Subject: [PATCH] DO NOT MERGE: Enable SHADOW_CALL_STACK on GCC builds, for build testing
NOT-Signed-off-by Ingo Molnar <[email protected]>
---
 Makefile           | 2 +-
 arch/Kconfig       | 2 +-
 arch/arm64/Kconfig | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
Makefile +1 -1
index 16d7f83ac368..bbab462e7509 100644
@@ -888,7 +888,7 @@ LDFLAGS_vmlinux += --gc-sections
 endif
 
 ifdef CONFIG_SHADOW_CALL_STACK
-CC_FLAGS_SCS	:= -fsanitize=shadow-call-stack
+CC_FLAGS_SCS	:=
 KBUILD_CFLAGS	+= $(CC_FLAGS_SCS)
 export CC_FLAGS_SCS
 endif
arch/Kconfig +1 -1
index 4e56f66fdbcf..2103d9da4fe1 100644
@@ -605,7 +605,7 @@ config ARCH_SUPPORTS_SHADOW_CALL_STACK
 
 config SHADOW_CALL_STACK
 	bool "Clang Shadow Call Stack"
-	depends on CC_IS_CLANG && ARCH_SUPPORTS_SHADOW_CALL_STACK
+	depends on ARCH_SUPPORTS_SHADOW_CALL_STACK
 	depends on DYNAMIC_FTRACE_WITH_REGS || !FUNCTION_GRAPH_TRACER
 	help
 	  This option enables Clang's Shadow Call Stack, which uses a
arch/arm64/Kconfig +1 -1
index c4207cf9bb17..952f3e56e0a7 100644
@@ -1183,7 +1183,7 @@ config ARCH_HAS_FILTER_PGPROT
 
 # Supported by clang >= 7.0
 config CC_HAVE_SHADOW_CALL_STACK
-	def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
+	def_bool y
 
 config PARAVIRT
 	bool "Enable paravirtualization code"
And was able to trigger at least some of the build errors you saw:
In file included from kernel/scs.c:15:
./include/linux/scs.h: In function 'scs_task_reset':
./include/linux/scs.h:26:34: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration]
This is fixed with:
kernel/scs.c +1 -0
index ca9e707049cb..719ab53adc8a 100644
@@ -5,6 +5,7 @@
  * Copyright (C) 2019 Google LLC
  */
 
+#include <linux/sched/thread_info_api.h>
 #include <linux/sched.h>
 #include <linux/mm_page_address.h>
 #include <linux/mm_api.h>
Then there's the build failure in init/main.c:
Quoted 8 lines
It looks like on mainline, init_shadow_call_stack is in defined and used in init/init_task.c but now, it is used in init/main.c, with no declaration to allow the compiler to find the definition. I guess moving init_shadow_call_stack out of init/init_task.c to somewhere more common would fix this but it depends on SCS_SIZE, which is defined in include/linux/scs.h, and as soon as I tried to include that in another file, the build broke further... Any ideas you have would be appreciated :) for benchmarking purposes, I just disabled CONFIG_SHADOW_CALL_STACK.
So I see:
In file included from ./include/linux/thread_info.h:63,
                 from ./arch/arm64/include/asm/smp.h:32,
                 from ./include/linux/smp_api.h:15,
                 from ./include/linux/percpu.h:6,
                 from ./include/linux/softirq.h:8,
                 from init/main.c:17:
init/main.c: In function 'init_per_task_early':
./arch/arm64/include/asm/thread_info.h:113:27: error: 'init_shadow_call_stack' undeclared (first use in this function)
  113 |         .scs_base       = init_shadow_call_stack,                       \
      |                           ^~~~~~~~~~~~~~~~~~~~~~
This looks pretty straightforward, does this patch solve it?
 include/linux/scs.h | 3 +++
 init/main.c         | 1 +
 2 files changed, 4 insertions(+)
include/linux/scs.h +3 -0
index 18122d9e17ff..863932a9347a 100644
@@ -8,6 +8,7 @@
 #ifndef _LINUX_SCS_H
 #define _LINUX_SCS_H
 
+#include <linux/sched/thread_info_api.h>
 #include <linux/gfp.h>
 #include <linux/poison.h>
 #include <linux/sched.h>
@@ -25,6 +26,8 @@
 #define task_scs(tsk)		(task_thread_info(tsk)->scs_base)
 #define task_scs_sp(tsk)	(task_thread_info(tsk)->scs_sp)
 
+extern unsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)];
+
 void *scs_alloc(int node);
 void scs_free(void *s);
 void scs_init(void);
init/main.c +1 -0
index c9eb3ecbe18c..74ccad445009 100644
@@ -12,6 +12,7 @@
 
 #define DEBUG		/* Enable initcall_debug */
 
+#include <linux/scs.h>
 #include <linux/workqueue_api.h>
 #include <linux/sysctl.h>
 #include <linux/softirq.h>
I've applied these fixes, with that CONFIG_SHADOW_CALL_STACK=y builds fine on ARM64 - but I performed no runtime testing.

Quoted 8 lines

I've backmerged this into:
headers/deps: per_task, arm64, x86: Convert task_struct::thread to a per_task() field
where this bug originated from.
I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.

Yes, that seems right.

Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.

There is no output, even with earlycon, so it seems like something is going wrong in early boot code. I am not very familiar with the SCS code so I will see if I can debug this with gdb later (I'll try to see if it is reproducible with GCC as well; as Nick mentions, there is support being added to it and I don't mind building from source).

Quoted 3 lines

We could move over the init_shadow_call_stack[] array there and make it static to begin with? I don't think anything truly relies on it being a global symbol.

That is what I thought as well... I'll see if I can ping Sami to see if there is any reason not to do that.

Quoted 95 lines

Quoted 9 lines
3. Nested function in arch/x86/kernel/asm-offsets.c
arch/x86/kernel/asm-offsets.c +0 -0
index ff3f8ed5d0a2..a6d56f4697cd 100644
@@ -35,10 +35,10 @@
 # include "asm-offsets_64.c"
 #endif
arch/x86/kernel/asm-offsets.c line 44
Quoted 10 lines
arch/x86/kernel/asm-offsets.c +2 -2
 
-static void __used common(void)
-{
 #include "../../../kernel/sched/per_task_area_struct_defs.h"
 
+static void __used common(void)
+{
        BLANK();
        DEFINE(TASK_threadsp, offsetof(struct task_struct, per_task_area) +
                              offsetof(struct task_struct_per_task, thread) +
Ha, that code is bogus, it's a merge bug of mine. Super interesting that GCC still managed to include the header ...
I've applied your fix.
Quoted 11 lines
4. Build error in kernel/gcov/clang.c
8 errors generated.
I resolved this with:
kernel/gcov/clang.c +0 -0
index 6ee385f6ad47..29f0899ba209 100644
kernel/gcov/clang.c line 56
Quoted 5 lines
kernel/gcov/clang.c +1 -0
@@ -52,6 +52,7 @@
 #include <linux/ratelimit.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
+#include <linux/string.h>
 #include "gcov.h"
Thank you - applied!
Quoted 13 lines
kernel/gcov/clang.c +0 -0
 typedef void (*llvm_gcov_callback)(void);
 
5. BPF errors
With Arch Linux's config (https://github.com/archlinux/svntogit-packages/raw/packages/linux/trunk/config),
I see the following errors:
kernel/bpf/preload/iterators/iterators.c:3:10: fatal error: 'linux/sched/signal.h' file not found
#include <linux/sched/signal.h>
         ^~~~~~~~~~~~~~~~~~~~~~
1 error generated.
Quoted 7 lines
kernel/bpf/sysfs_btf.c:21:2: error: implicitly declaring library function 'memcpy' with type 'void *(void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]
        memcpy(buf, __start_BTF + off, len);
        ^
kernel/bpf/sysfs_btf.c:21:2: note: include the header <string.h> or explicitly provide a declaration for 'memcpy' 1 error generated.
The second error is obviously fixed by just including string.h as above.
Applied.
Quoted 4 lines
I am not sure what is wrong with the first one; the includes all appear to be userland headers, rather than kernel ones, so maybe an -I flag is not present that should be? To work around it, I disabled CONFIG_BPF_PRELOAD.
Yeah, this should be fixed by simply removing the two stray dependencies that found their way into this user-space code:
 kernel/bpf/preload/iterators/iterators.bpf.c | 1 -
 kernel/bpf/preload/iterators/iterators.c     | 1 -
 2 files changed, 2 deletions(-)
kernel/bpf/preload/iterators/iterators.bpf.c +0 -1
index 41ae00edeecf..03af863314ea 100644
@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020 Facebook */
-#include <linux/seq_file.h>
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_core_read.h>
kernel/bpf/preload/iterators/iterators.c +0 -0
index d702cbf7ddaf..5d872a705470 100644

kernel/bpf/preload/iterators/iterators.c line 5

Quoted 6 lines

kernel/bpf/preload/iterators/iterators.c +0 -1

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2020 Facebook */
-#include <linux/sched/signal.h>
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>

Yes, that resolves the error for me.

Quoted 11 lines

Quoted 11 lines
6. resolve_btfids warning
After working around the above errors, with either GCC or clang, I see the following warnings with Arch Linux's configuration:
WARN: multiple IDs found for 'task_struct': 103, 23549 - using 103
WARN: multiple IDs found for 'path': 1166, 23551 - using 1166
WARN: multiple IDs found for 'inode': 997, 23561 - using 997
WARN: multiple IDs found for 'file': 714, 23566 - using 714
WARN: multiple IDs found for 'seq_file': 1120, 23673 - using 1120

Quoted 8 lines

Quoted 2 lines
Which appears to come from symbols_resolve() in
tools/bpf/resolve_btfids/main.c.
Hm, is this perhaps related to CONFIG_KALLSYMS_FAST=y? If yes then turning it off might help.
I don't really know this area of BPF all that much, maybe someone else can see what the problem is? The error message is not self-explanatory.

It does not seem related, as I disabled that configuration and still see it.

I am equally ignorant about BPF so enlisting their help would good.

Quoted 13 lines

Quoted 6 lines
########################################################################
I am very excited to see where this goes, it is a herculean effort but I think it will be worth it in the long run. Let me know if there is any more information or input that I can provide, cheers!
Your testing & patch sending efforts are much appreciated!! You'd help me most by continuing on the same path with new fast-headers releases as well, whenever you find the time. :-)
BTW., you can always pick up my latest Work-In-Progress branch from:

Quoted 8 lines

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
The 'master' branch will carry the release.
The sched/headers branch is already rebased to -rc8 and has some other changes as well. It should normally work, with less testing than the main releasees, but will at times have fixes at the tail waiting to be backmerged in a bisect-friendly way.

Sure thing, I will continue to follow this and test it as much as I can to make sure everything continues to work well!

Cheers,
Nathan

Nathan Chancellor

maintainer

2022-01-04 17:51 UTC #28 lore raw

Re: [PATCH] headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

https://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html

Quoted 69 lines · Ingo Molnar

Quoted 56 lines · Ingo Molnar
Quoted 6 lines
1. Position of certain attributes
In some commits, you move the cacheline_aligned attributes from after the closing brace on structures to before the struct keyword, which causes clang to warn (and error with CONFIG_WERROR):
Quoted 12 lines
In file included from arch/arm64/kernel/asm-offsets.c:9:
In file included from arch/arm64/kernel/../../../kernel/sched/per_task_area_struct.h:33:
In file included from ./include/linux/perf_event_api.h:17:
In file included from ./include/linux/perf_event_types.h:41:
In file included from ./include/linux/ftrace.h:18:
In file included from ./arch/arm64/include/asm/ftrace.h:53:
In file included from ./include/linux/compat.h:11:
./include/linux/fs_types.h:997:1: error: attribute '__aligned__' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes] ____cacheline_aligned
^
./include/linux/cache.h:41:46: note: expanded from macro '____cacheline_aligned'
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
Yeah, so this is a *really* stupid warning from Clang.
Putting the attribute after 'struct' risks the hard to track down bugs when a <linux/cache.h> inclusion is missing, which scenario I pointed out in this commit:
headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition
When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:
ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.
There were no compile time errors, only link time errors.
Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:
In file included from ./include/linux/fs.h:9,
from ./include/linux/fsverity.h:14, from fs/verity/fsverity_private.h:18, from fs/verity/read_metadata.c:8:
./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
132 | ____cacheline_aligned
| ^
| ;
133 | struct dentry_operations {
| ~~~~~~
Quoted 5 lines
No change in functionality.
Signed-off-by Ingo Molnar <[email protected]>
Can this Clang warning be disabled?
Ok, broke out this issue into its own thread, in form of a patch submission
- so that others don't have to wade through a massive tree to find a single commit ...

Quoted 6 lines

I'll of course drop these (non-essential) cleanups if the upstream policy is to follow Clang's quirk/convention, but I find the forced attribute tail-position a sad misfeature, due to the reasons outlined in this patch:
a straightforward build failure in case an attribute is not defined is far preferable to spurious creation of variables with link-time warnings that don't actually highlight the exact nature of the bug ...

I don't disagree with that sentiment. However, I went and looked at GCC's documentation, which seems to agree with clang's warning here.

"You may specify type attributes in an enum, struct or union type declaration or definition by placing them immediately after the struct, union or enum keyword. You can also place them just past the closing curly brace of the definition, but this is less preferred because logically the type should be fully defined at the closing brace."

Nowhere does it mention that it accepts the attribute before the type keyword and neither compiler respects the attribute if it comes before the keyword but at least clang warns: https://godbolt.org/z/E9fTecKPv

$ cat test.c
#include <stdio.h>

struct foo {
    int a;
    int b;
};

struct __attribute__ ((aligned (64))) bar {
    int a;
    int b;
};

__attribute__ ((aligned (64))) struct baz {
    int a;
    int b;
};

int main(void)

{
    printf("struct foo alignment: %zd\n", _Alignof(struct foo));
    printf("struct bar alignment: %zd\n", _Alignof(struct bar));
    printf("struct baz alignment: %zd\n", _Alignof(struct baz));
    return 0;
}

$ gcc --version | head -1
gcc (GCC) 11.2.1 20211231

$ gcc -std=gnu89 -Wall -Wextra test.c; and ./a.out
struct foo alignment: 4
struct bar alignment: 64
struct baz alignment: 4

$ clang --version | head -1
clang version 13.0.0

$ clang -std=gnu89 -Wall -Wextra test.c; and ./a.out
test.c:13:17: warning: attribute 'aligned' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
__attribute__ ((aligned (64))) struct baz {
                ^
1 warning generated.
struct foo alignment: 4
struct bar alignment: 64
struct baz alignment: 4

Cheers,
Nathan

Quoted 61 lines

=====================>
Date: Sun, 20 Jun 2021 09:41:45 +0200
Subject: [PATCH] headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition
When changing <linux/dcache.h> I removed the <linux/spinlock_api.h> header, which caused a couple of hundred of mysterious, somewhat obscure link time errors:
ld: net/sctp/tsnmap.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/tsnmap.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
ld: net/sctp/debug.o:(.bss+0x0): multiple definition of `____cacheline_aligned_in_smp'; init/do_mounts_rd.o:(.bss+0x0): first defined here
ld: net/sctp/debug.o:(.bss+0x40): multiple definition of `____cacheline_aligned'; init/do_mounts_rd.o:(.bss+0x40): first defined here
After a bit of head-scratching, what happened is that 'struct dentry_operations' has the ____cacheline_aligned attribute at the tail of the type definition - which turned into a local variable definition when <linux/cache.h> was not included - which <linux/spinlock_api.h> includes into <linux/dcache.h> indirectly.
There were no compile time errors, only link time errors.
Move the attribute to the head of the definition, in which case a missing <linux/cache.h> inclusion creates an immediate build failure:
In file included from ./include/linux/fs.h:9,
                   from ./include/linux/fsverity.h:14,
                   from fs/verity/fsverity_private.h:18,
                   from fs/verity/read_metadata.c:8:
  ./include/linux/dcache.h:132:22: error: expected ‘;’ before ‘struct’
    132 | ____cacheline_aligned
        |                      ^
        |                      ;
    133 | struct dentry_operations {
        | ~~~~~~
No change in functionality.
Signed-off-by Ingo Molnar <[email protected]>
---
 include/linux/dcache.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
include/linux/dcache.h +2 -1
index 41062093ec9b..0482c3d6f1ce 100644
@@ -129,6 +129,7 @@ enum dentry_d_lock_class
 	DENTRY_D_LOCK_NESTED
 };
 
+____cacheline_aligned
 struct dentry_operations {
 	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_weak_revalidate)(struct dentry *, unsigned int);
@@ -144,7 +145,7 @@ struct dentry_operations {
 	struct vfsmount *(*d_automount)(struct path *);
 	int (*d_manage)(const struct path *, bool);
 	struct dentry *(*d_real)(struct dentry *, const struct inode *);
-} ____cacheline_aligned;
+};
 
 /*
  * Locking rules for dentry_operations callbacks are to be found in

Arnd Bergmann

maintainer

2022-01-04 17:52 UTC #9 lore raw

In reply to Andy Shevchenko

Quoted 16 lines · Ingo Molnar

Quoted 15 lines · Greg Kroah-Hartman
Quoted 15 lines
Before going into details about how this tree solves 'dependency hell' exactly, here's the current kernel build performance gain with CONFIG_FAST_HEADERS=y enabled, (and with CONFIG_KALLSYMS_FAST=y enabled as well - see below), using a stock x86 Linux distribution's .config with all modules built into the vmlinux:
#
# Performance counter stats for 'make -j96 vmlinux' (3 runs):
#
# (Elapsed time in seconds):
#
  v5.16-rc7:            231.34 +- 0.60 secs, 15.5 builds/hour    # [ vanilla baseline ]
  -fast-headers-v1:     129.97 +- 0.51 secs, 27.7 builds/hour    # +78.0% improvement

Quoted 8 lines

Quoted 6 lines
Quoted 4 lines
Or in terms of CPU time utilized:
v5.16-rc7: 11,474,982.05 msec cpu-clock # 49.601 CPUs utilized
-fast-headers-v1: 7,100,730.37 msec cpu-clock # 54.635 CPUs utilized # +61.6% improvement
Speed up is very impressive, nice job!
Thanks! :-)

I've done some work in this area in the past, didn't quite take it enough of the way to get this far. The best I saw was 30% improvement with clang, which tends to be more sensitive than gcc towards header file bloat, as it does more detailed syntax checking before eliminating dead code.

Did you try both gcc and clang for this?

Quoted 16 lines

Quoted 4 lines
That issue aside, I took a glance at the tree, and overall it looks like a lot of nice cleanups. Most of these can probably go through the various subsystem trees, after you split them out, for the "major" .h cleanups. Is that something you are going to be planning on doing?
Yeah, I absolutely plan on doing that too:
- About ~70% of the commits can be split up & parallelized through maintainer trees.
- With the exception of the untangling of sched.h, per_task and the "Optimize Headers" series, where a lot of patches are dependent on each other. These are actually needed to get any measurable benefits from this tree (!). We can do these through the scheduler tree, or through the dedicated headers tree I posted.

Quoted 6 lines

The latter monolithic series is pretty much unavoidable, it's the result of 30 years of coupling a lot of kernel subsystems to task_struct via embedded structs & other complex types, that needed quite a bit of effort to untangle, and that untangling needed to happen in-order.
Do these plans this sound good to you?

I haven't had a chance to look at your tree yet, I'm still on vacation without access to my normal workstation. I would like to run my own scripts for analyzing the header dependencies on it after I get back next week.

From what I could tell, linux/sched.h was not the only such problem, but I saw similarly bad issues with linux/fs.h (which is what I posted about in November/December), linux/mm.h and linux/netdevice.h on the high level, in low-level headers there are huge issues with linux/atomic.h, linux/mutex.h, linux/pgtable.h etc. I expect that you have addressed these as well, but I'd like to make sure that your changes are reasonably complete on arm32 and arm64 to avoid having to do the big cleanup more than once.

My approach to the large mid-level headers is somewhat different:
rather than completely avoiding them from getting included, I would like to split up the structure definitions from the inline functions. Linus didn't really like my approach, but I suspect he'll have similar concerns about your solution for linux/sched.h, especially if we end up applying the same hack to other commonly used structures (sk_buff, mm_struct, super_block) in the end. I should be able to come up with a less handwavy reply after I've actually studied your approach better.

Most of the patches should be the same either way (adding back missing includes to drivers, and doing cleanups to commonly included headers to avoid the deep nesting), the interesting bit will be how to properly define the larger structures without pulling in the rest of the world.

Arnd

Ingo Molnar

author

2022-01-04 23:27 UTC #8 lore raw

Re: [PATCH] per_task: Remove the PER_TASK_BYTES hard-coded constant

Quoted 8 lines · Andy Shevchenko

Quoted 5 lines · Ingo Molnar
* Ingo Molnar <[email protected]> wrote:
+++ b/kernel/sched/core.c
+#include "../../../kernel/sched/per_task_area_struct.h"
#include "per_task_area_struct.h" ?

Indeed - fixed.

Thanks,

Ingo

Ingo Molnar

author

2022-01-05 00:06 UTC #10 lore raw

In reply to Arnd Bergmann

Quoted 6 lines · Arnd Bergmann

From what I could tell, linux/sched.h was not the only such problem, but I saw similarly bad issues with linux/fs.h (which is what I posted about in November/December), linux/mm.h and linux/netdevice.h on the high level, in low-level headers there are huge issues with linux/atomic.h, linux/mutex.h, linux/pgtable.h etc. I expect that you have addressed these as well,

Correct, each of these was a problem - and a *lot* of other headers in addition to those:

  kepler:~/mingo.tip.git> git diff --stat v5.16-rc8.. include/linux/ arch/*/include/asm/ | grep changed

    1335 files changed, 59677 insertions(+), 56582 deletions(-)

and I reduced all the kernels that showed up in the bloat-profile to a fraction of their orignal size:

    ------------------------------------------------------------------------------------------
    | Combined, preprocessed C code size of header, without line markers,
    | with comments stripped:
    ------------------------------.-----------------------------.-----------------------------
                                  | v5.16-rc7                   |  -fast-headers-v1
                                  |-----------------------------|-----------------------------
     #include <linux/sched.h>     | LOC: 13,292 | headers:  324 |  LOC:    769 | headers:   64
     #include <linux/wait.h>      | LOC:  9,369 | headers:  235 |  LOC:    483 | headers:   46
     #include <linux/rcupdate.h>  | LOC:  8,975 | headers:  224 |  LOC:  1,385 | headers:   86
     #include <linux/hrtimer.h>   | LOC: 10,861 | headers:  265 |  LOC:    229 | headers:   37
     #include <linux/fs.h>        | LOC: 22,497 | headers:  427 |  LOC:  1,993 | headers:  120
     #include <linux/cred.h>      | LOC: 17,257 | headers:  368 |  LOC:  4,830 | headers:  129
     #include <linux/dcache.h>    | LOC: 10,545 | headers:  253 |  LOC:    858 | headers:   65
     #include <linux/cgroup.h>    | LOC: 33,518 | headers:  522 |  LOC:  2,477 | headers:  111
     #include <linux/module.h>    | LOC: 16,948 | headers:  339 |  LOC:  2,239 | headers:  122
     #include <linux/kobject.h>   | LOC: 15,210 | headers:  318 |  LOC:    799 | headers:   59
     #include <linux/device.h>    | LOC: 20,505 | headers:  408 |  LOC:  2,131 | headers:  123
     #include <linux/gfp.h>       | LOC: 13,543 | headers:  303 |  LOC:    181 | headers:   26
     #include <linux/slab.h>      | LOC: 14,037 | headers:  307 |  LOC:    999 | headers:   74
     #include <linux/mm.h>        | LOC: 26,727 | headers:  453 |  LOC:  1,855 | headers:  133
     #include <linux/mmzone.h>    | LOC: 12,755 | headers:  293 |  LOC:    832 | headers:   64
     #include <linux/swap.h>      | LOC: 38,292 | headers:  559 |  LOC: 11,085 | headers:  294
     #include <linux/writeback.h> | LOC: 36,481 | headers:  550 |  LOC:  1,566 | headers:   92
     #include <linux/gfp.h>       | LOC: 13,543 | headers:  303 |  LOC:    181 | headers:   26
     #include <linux/skbuff.h>    | LOC: 36,130 | headers:  558 |  LOC:  1,209 | headers:   89
     #include <linux/tcp.h>       | LOC: 60,133 | headers:  725 |  LOC:  3,829 | headers:  153
     #include <linux/udp.h>       | LOC: 59,411 | headers:  721 |  LOC:  3,236 | headers:  146
     #include <linux/filter.h>    | LOC: 54,172 | headers:  689 |  LOC:  4,087 | headers:   73
     #include <linux/interrupt.h> | LOC: 14,085 | headers:  340 |  LOC:  2,629 | headers:  124

     #include <net/sock.h>        | LOC: 58,880 | headers:  715 |  LOC:  1,543 | headers:   98

     #include <asm/processor.h>   | LOC:  7,821 | headers:  204 |  LOC:    618 | headers:   41
     #include <asm/page.h>        | LOC:  1,540 | headers:   97 |  LOC:  1,193 | headers:   82
     #include <asm/pgtable.h>     | LOC: 12,949 | headers:  297 |  LOC:  5,742 | headers:  217

<linux/atomic.h> wasn't a particularly big problem - but it does get included everywhere, so I moved the most common atomic_t definition into <linux/types.h> (on 64-bit kernels), which allowed a big reduction for the majority of cases that don't use the atomic APIs:

 #include <linux/atomic.h>               | LOC:    176 | headers:   26
 #include <linux/atomic_api.h>           | LOC:  2,785 | headers:   52

But <linux/atomic_api.h> is still included in ~75% of .c files, mostly for good reasons, because it's a very popular low level API.

Quoted 2 lines

but I'd like to make sure that your changes are reasonably complete on arm32 and arm64 to avoid having to do the big cleanup more than once.

I did test ARM64 extensively in terms of build coverage - but not in terms of header bloat, and I'm sure more could be done there!

Quoted 3 lines

My approach to the large mid-level headers is somewhat different: rather than completely avoiding them from getting included, I would like to split up the structure definitions from the inline functions.

That's a big chunk of what the -fast-headers tree does: I've split over 85 headers into <linux/header_types.h> and <linux/header_api.h>...

I've also split up headers further where needed, in particular mm.h required multiple levels of splitting to get the dependencies of the most commonly used <linux/mm_types.h> and <linux/mm_api.h> headers under control:

kepler:~/mingo.tip.git> ls -ldt include/linux/mm*api*.h

  -rw-rw-r-- 1 mingo mingo 77130 Jan  4 13:32 include/linux/mm_api.h
  -rw-rw-r-- 1 mingo mingo 22227 Jan  4 13:32 include/linux/mmzone_api.h
  -rw-rw-r-- 1 mingo mingo  6759 Jan  4 13:32 include/linux/mm_api_extra.h
  -rw-rw-r-- 1 mingo mingo   479 Jan  4 13:31 include/linux/mm_api_exe_file.h
  -rw-rw-r-- 1 mingo mingo   960 Jan  4 13:31 include/linux/mm_api_truncate.h
  -rw-rw-r-- 1 mingo mingo  1262 Jan  4 13:31 include/linux/mm_api_kvmalloc.h
  -rw-rw-r-- 1 mingo mingo   719 Jan  4 13:31 include/linux/mm_api_gate_area.h
  -rw-rw-r-- 1 mingo mingo  1342 Jan  4 13:31 include/linux/mm_api_kasan.h
  -rw-rw-r-- 1 mingo mingo  3007 Jan  4 13:31 include/linux/mm_api_tlb_flush.h

The results are pretty nice:

# vanilla:

   #include <linux/mm.h>                   | LOC: 26,728 | headers:  453

# -fast-headers:

   #include <linux/mm.h>                   | LOC:  1,855 | headers:  132  # == mm_types.h
   #include <linux/mm_types.h>             | LOC:  1,855 | headers:  131
   #include <linux/mm_api.h>               | LOC:  8,587 | headers:  229

And <linux/mm_api.h> is now included only in about 25% of the .c files - in the vanilla kernel the use percentage is over ~90%.

But despite all those reductions, <linux/mm_api.h> is still a header with one of the largest cumulative footprints within a (distro) kernel build:

                                                              | stripped lines of code
                                                              |              _____________________________
                                                              |             | headers included recursively
                                                              |             |                _______________________________
                                                              |             |               | usage in a distro kernel build
 ____________                                                 |             |               |         _________________________________________
| header name                                                 |             |               |        | million lines of comment-stripped C code
|                                                             |             |               |        |
  #include <linux/spinlock_api.h>                             | LOC:  5,142 | headers:  123 | 10,168 | MLOC:   52.2 | #############
  #include <linux/device/driver.h>                            | LOC:  4,132 | headers:  169 | 12,306 | MLOC:   50.8 | ############
  #include <linux/mm_api.h>                                   | LOC:  8,584 | headers:  230 |  5,135 | MLOC:   44.0 | ###########
  #include <linux/skbuff_api.h>                               | LOC:  8,404 | headers:  190 |  5,065 | MLOC:   42.5 | ##########
  #include <linux/atomic_api.h>                               | LOC:  2,785 | headers:   52 | 15,282 | MLOC:   42.5 | ##########
  #include <asm/spinlock.h>                                   | LOC:  4,039 | headers:   83 | 10,168 | MLOC:   41.0 | ##########
  #include <asm/qrwlock.h>                                    | LOC:  4,039 | headers:   82 | 10,168 | MLOC:   41.0 | ##########
  #include <asm-generic/qrwlock.h>                            | LOC:  4,039 | headers:   81 | 10,168 | MLOC:   41.0 | ##########
  #include <linux/page_ref.h>                                 | LOC:  5,397 | headers:  168 |  7,578 | MLOC:   40.8 | ##########
  #include <asm/qspinlock.h>                                  | LOC:  3,990 | headers:   80 | 10,169 | MLOC:   40.5 | ##########
  #include <linux/device_types.h>                             | LOC:  2,131 | headers:  122 | 17,424 | MLOC:   37.1 | #########
  #include <linux/module.h>                                   | LOC:  2,239 | headers:  122 | 16,472 | MLOC:   36.8 | #########
  #include <net/cfg80211.h>                                   | LOC: 29,004 | headers:  423 |  1,205 | MLOC:   34.9 | ########
  #include <linux/pci.h>                                      | LOC:  7,092 | headers:  232 |  4,849 | MLOC:   34.3 | ########
  #include <linux/netdevice_api.h>                            | LOC:  8,434 | headers:  225 |  4,065 | MLOC:   34.2 | ########
  #include <linux/refcount_api.h>                             | LOC:  3,421 | headers:   87 |  9,776 | MLOC:   33.4 | ########

( The 'MLOC' footprint estimate is number of usages times
preprocessed-stripped-header size. )

I've reduced header bloat through three primary angles of attack:

- reducing number of inclusions

- reducing header size itself, by type/API splitting & by segmenting headers along API usage frequency

- decoupling headers from each other

As you can see, fast-headers -v1 is much improved (on x86), but there's plenty of work left, such as <net/cfg80211.h>. :-)

Quoted 1 line

Linus didn't really like my approach,

Yeah, so without having a significant build time speedup I didn't like my approach(es) either, which is why I didn't post this tree for a long time. :-)

But the results speak for themselves IMO, and we cannot ignore this: my project actually accelerated as I progressed, because the kernel rebuilds, especially incremental ones, became faster and faster...

Linux kernel header dependencies need to be simplified.

Quoted 4 lines

but I suspect he'll have similar
concerns about your solution for linux/sched.h, especially if we end up applying the same hack to other commonly used structures (sk_buff, mm_struct, super_block) in the end.

So the per_task approach is pretty much unavoidable under the constraint of having no runtime overhead, given that task_struct is a historic union of a zillion types, where 99% of the users don't actually need to know about those types.

( We could eventually get rid of per_task() as well, by turning complex
embedded structs into pointers - but that has runtime overhead due to the indirections, and I tried hard to make this approach runtime-invariant, at least conceptually. )

The header splitting I've done is fundamentally clean (at least aspirationally), mostly done along conceptual boundaries or API families.

It's how we'd have implemented many of those headers if we had a time machine and went back 30 years. ;-)

Quoted 2 lines

I should be able to come up with a less handwavy reply after I've actually studied your approach better.

Looking forward to it!

Thanks,

Ingo

Ingo Molnar

author

2022-01-05 00:11 UTC #20 lore raw

Re: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 16 lines · Greg Kroah-Hartman

Quoted 15 lines · Greg Kroah-Hartman
Quoted 14 lines · Ingo Molnar
Quoted 10 lines · Greg Kroah-Hartman
Quoted 2 lines · Ingo Molnar
There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:
<snip>
Quoted 1 line
3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()
Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.

Quoted 6 lines

Quoted 6 lines
Quoted 1 line
Sure - here you go!
I just picked it out of your git tree already :)
Along those lines, any objection to me taking at least one other one? 3f8757078d27 ("headers/prep: usb: gadget: Fix namespace collision") and

Ack.

Quoted 1 line

Quoted 1 line
6fb993fa3832 ("headers/deps: USB: Optimize <linux/usb/ch9.h>

Ack.

Quoted 5 lines

Quoted 2 lines
dependencies, remove <linux/device.h>") look like I can take now into my USB tree with no problems.
Also these look good to go now:
bae9ddd98195 ("headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h")

Ack.

Quoted 1 line

c027175b37e5 ("headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c")

Ack.

Note that these latter two patches just simplified the task of my (simplistic) tooling, which is basically a shell script that inserts header dependencies to the head of .c and .h files, right in front of the first #include line it encounters.

These two patches do have some marginal clean-up value too, so I'm not opposed to merging them - just wanted to declare their true role. :-)

Thanks,

Ingo

Ingo Molnar

author

2022-01-05 00:20 UTC #29 lore raw

Re: [PATCH] headers/deps: dcache: Move the ____cacheline_aligned attribute to the head of the definition

Quoted 30 lines · Nathan Chancellor

Nowhere does it mention that it accepts the attribute before the type keyword and neither compiler respects the attribute if it comes before the keyword but at least clang warns: https://godbolt.org/z/E9fTecKPv
$ cat test.c
#include <stdio.h>
struct foo {
    int a;
    int b;
};
struct __attribute__ ((aligned (64))) bar {
    int a;
    int b;
};
__attribute__ ((aligned (64))) struct baz {
    int a;
    int b;
};
int main(void)
{
    printf("struct foo alignment: %zd\n", _Alignof(struct foo));
    printf("struct bar alignment: %zd\n", _Alignof(struct bar));
    printf("struct baz alignment: %zd\n", _Alignof(struct baz));
    return 0;
}

Quoted 7 lines

$ gcc --version | head -1
gcc (GCC) 11.2.1 20211231

$ gcc -std=gnu89 -Wall -Wextra test.c; and ./a.out
struct foo alignment: 4
struct bar alignment: 64
struct baz alignment: 4

Ugh - so my changes there are outright buggy.

I'm reverting all those attribute position changes as we speak ...

I'm actually happy about this in a way, as it settles the issue nicely. :-)

Thanks,

Ingo

Ingo Molnar

author

2022-01-05 00:26 UTC #30 lore raw

PATCH 1/1 headers/deps: Attribute placement fixes for Clang & GCC

Quoted 6 lines · Ingo Molnar

Ugh - so my changes there are outright buggy.
I'm reverting all those attribute position changes as we speak ...
I'm actually happy about this in a way, as it settles the issue nicely. :-)

And, by the way - by putting the attribute after the 'struct' keyword we get the best of the two worlds: accidentally non-defined attribute shortcuts will still result in a build error.

Below is the fix - should be identical to yours (which was whitespace mangled).

I'll backmerge these fixes to the originating commits & push out -v2 later today.

Thanks,

Ingo

---
 include/linux/dcache.h        | 3 +--
 include/linux/fs_types.h      | 3 +--
 include/linux/netdevice_api.h | 2 +-
 include/net/xdp_types.h       | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

include/linux/dcache.h +1 -2

index 520daf638d06..da7e77a7cede 100644
@@ -127,8 +127,7 @@ enum dentry_d_lock_class
 	DENTRY_D_LOCK_NESTED
 };
 
-____cacheline_aligned
-struct dentry_operations {
+struct ____cacheline_aligned dentry_operations {
 	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_weak_revalidate)(struct dentry *, unsigned int);
 	int (*d_hash)(const struct dentry *, struct qstr *);

include/linux/fs_types.h +1 -2

index b53aadafab1b..e2e1c0827183 100644
@@ -994,8 +994,7 @@ struct file_operations {
 	int (*fadvise)(struct file *, loff_t, loff_t, int);
 } __randomize_layout;
 
-____cacheline_aligned
-struct inode_operations {
+struct ____cacheline_aligned inode_operations {
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
 	const char * (*get_link) (struct dentry *, struct inode *, struct delayed_call *);
 	int (*permission) (struct user_namespace *, struct inode *, int);

include/linux/netdevice_api.h +1 -1

index 4a8d7688e148..0e5e08dcbb2a 100644
@@ -49,7 +49,7 @@
 #endif
 
 /* This structure contains an instance of an RX queue. */
-____cacheline_aligned_in_smp struct netdev_rx_queue {
+struct ____cacheline_aligned_in_smp netdev_rx_queue {
 	struct xdp_rxq_info		xdp_rxq;
 #ifdef CONFIG_RPS
 	struct rps_map __rcu		*rps_map;

include/net/xdp_types.h +1 -1

index 442028626b35..accc12372bca 100644
@@ -56,7 +56,7 @@ struct xdp_mem_info {
 struct page_pool;
 
 /* perf critical, avoid false-sharing */
-____cacheline_aligned struct xdp_rxq_info {
+struct ____cacheline_aligned xdp_rxq_info {
 	struct net_device *dev;
 	u32 queue_index;
 	u32 reg_state;

Ingo Molnar

author

2022-01-05 00:36 UTC #35 lore raw

PATCH 1/1 x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs

Quoted 38 lines · Nathan Chancellor

Good point. With my main box (AMD EPYC 7502P), with the performance governor...
GCC:
Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 48.685 s ± 0.049 s [User: 1969.835 s, System: 204.166 s]
Range (min … max): 48.620 s … 48.782 s 10 runs
Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 46.797 s ± 0.119 s [User: 1403.854 s, System: 154.336 s]
Range (min … max): 46.620 s … 47.052 s 10 runs
Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran
    1.04 ± 0.00 times faster than 'ARCH=x86_64 defconfig (linux)'
LLVM:
Benchmark 1: ARCH=x86_64 defconfig (linux)
Time (mean ± σ): 51.816 s ± 0.079 s [User: 2208.577 s, System: 200.410 s]
Range (min … max): 51.671 s … 51.900 s 10 runs
Benchmark 2: ARCH=x86_64 defconfig (linux-fast-headers)
Time (mean ± σ): 46.806 s ± 0.062 s [User: 1438.972 s, System: 154.846 s]
Range (min … max): 46.696 s … 46.917 s 10 runs
Summary
'ARCH=x86_64 defconfig (linux-fast-headers)' ran
    1.11 ± 0.00 times faster than 'ARCH=x86_64 defconfig (linux)'
$ rg KALLSYMS .config
246:CONFIG_KALLSYMS=y
247:# CONFIG_KALLSYMS_ALL is not set
248:CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
249:CONFIG_KALLSYMS_BASE_RELATIVE=y
250:CONFIG_KALLSYMS_FAST=y
706:CONFIG_HAVE_OBJTOOL_KALLSYMS=y

Quoted 3 lines

It seems like everything is working right but maybe the build is so short that there just is not much time for the difference to be as apparent?

Yeah, x86 defconfig doesn't have KALLSYMS_ALL - while all distro configs I checked have it enabled, because it makes crash printouts / backtraces more informative.

Lockep will also enable it unconditionally.

So I've applied the patch below, to make the x86 defconfig more representative of what people are using in practice. This will also, as a side effect, bring elapsed time improvements closer to what the underlying cpu-time improvements offer, in the small-config case too.

Thanks,

Ingo

====================================>
From: Ingo Molnar <[email protected]>
Date: Wed, 5 Jan 2022 01:31:35 +0100
Subject: [PATCH] x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs

Most distro kernels have this option enabled, to improve debug output.

Lockdep also selects it.

Enable this in the defconfig kernel as well, to make it more representative of what people are using on x86.

Signed-off-by Ingo Molnar <[email protected]>

---
 arch/x86/configs/i386_defconfig   | 1 +
 arch/x86/configs/x86_64_defconfig | 1 +
 2 files changed, 2 insertions(+)

arch/x86/configs/i386_defconfig +1 -0

index 5d97a2dfbaa7..71124cf8630c 100644
@@ -261,3 +261,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y

arch/x86/configs/x86_64_defconfig +1 -0

index 30ab3e582d53..92b1169ec90b 100644
@@ -257,3 +257,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y

Ingo Molnar

author

2022-01-05 00:40 UTC #37 lore raw

In reply to Nick Desaulniers

Quoted 10 lines · Nathan Chancellor

Quoted 2 lines
I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.
Yes, that seems right.
Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.

Yeah, there's a breakage window on ARM64, I'll track down that bisectability bug.

Decoupling thread_info and task_struct incrementally, so that it bisects cleanly on all architectures, was always a big challenge. :-/

Quoted 5 lines

There is no output, even with earlycon, so it seems like something is going wrong in early boot code. I am not very familiar with the SCS code so I will see if I can debug this with gdb later (I'll try to see if it is reproducible with GCC as well; as Nick mentions, there is support being added to it and I don't mind building from source).

Just to make sure: with SCS disabled the same kernel boots fine?

Quoted 2 lines

Sure thing, I will continue to follow this and test it as much as I can to make sure everything continues to work well!

Thank you!

Ingo

Ingo Molnar

author

2022-01-05 00:43 UTC #33 lore raw

Quoted 6 lines · Nick Desaulniers

Quoted 1 line
Can this Clang warning be disabled?
Clang is warning that the attribute will be ignored because of that positioning. If you disable the warning, code will probably stop working as intended. This warning has at least been helping us make the kernel coding style more consistent.

Yeah, indeed, Clang is fully correct to warn here, and these changes in my tree are outright bugs (which bugs Clang found & reported :-).

See the fixes below - by doing it this way the 'spurious link failure' problem when a header include is missing should be fixed as well.

Thanks,

Ingo

---
 include/linux/dcache.h        | 3 +--
 include/linux/fs_types.h      | 3 +--
 include/linux/netdevice_api.h | 2 +-
 include/net/xdp_types.h       | 2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

include/linux/dcache.h +1 -2

index 520daf638d06..da7e77a7cede 100644
@@ -127,8 +127,7 @@ enum dentry_d_lock_class
 	DENTRY_D_LOCK_NESTED
 };
 
-____cacheline_aligned
-struct dentry_operations {
+struct ____cacheline_aligned dentry_operations {
 	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_weak_revalidate)(struct dentry *, unsigned int);
 	int (*d_hash)(const struct dentry *, struct qstr *);

include/linux/fs_types.h +1 -2

index b53aadafab1b..e2e1c0827183 100644
@@ -994,8 +994,7 @@ struct file_operations {
 	int (*fadvise)(struct file *, loff_t, loff_t, int);
 } __randomize_layout;
 
-____cacheline_aligned
-struct inode_operations {
+struct ____cacheline_aligned inode_operations {
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
 	const char * (*get_link) (struct dentry *, struct inode *, struct delayed_call *);
 	int (*permission) (struct user_namespace *, struct inode *, int);

include/linux/netdevice_api.h +1 -1

index 4a8d7688e148..0e5e08dcbb2a 100644
@@ -49,7 +49,7 @@
 #endif
 
 /* This structure contains an instance of an RX queue. */
-____cacheline_aligned_in_smp struct netdev_rx_queue {
+struct ____cacheline_aligned_in_smp netdev_rx_queue {
 	struct xdp_rxq_info		xdp_rxq;
 #ifdef CONFIG_RPS
 	struct rps_map __rcu		*rps_map;

include/net/xdp_types.h +1 -1

index 442028626b35..accc12372bca 100644
@@ -56,7 +56,7 @@ struct xdp_mem_info {
 struct page_pool;
 
 /* perf critical, avoid false-sharing */
-____cacheline_aligned struct xdp_rxq_info {
+struct ____cacheline_aligned xdp_rxq_info {
 	struct net_device *dev;
 	u32 queue_index;
 	u32 reg_state;

Ingo Molnar

author

2022-01-05 01:07 UTC #38 lore raw

Quoted 8 lines · Ingo Molnar

Quoted 5 lines · Nathan Chancellor
Quoted 2 lines
I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.
Yes, that seems right.

Quoted 8 lines

Quoted 5 lines
Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.
Yeah, there's a breakage window on ARM64, I'll track down that bisectability bug.

I haven't fixed this ARM64 bisection breakage yet, but I've integrated & backmerged all the other fixes and changes, and pushed it out to the WIP branch:

# 1755441e323b per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets

git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers

Let me know if there's anything missing or if there's a new breakage.

This is pretty close to what will be -v2.

Thanks,

Ingo

Arnd Bergmann

maintainer

2022-01-05 01:37 UTC #11 lore raw

Quoted 46 lines · Ingo Molnar

Quoted 6 lines · Arnd Bergmann

From what I could tell, linux/sched.h was not the only such problem, but I saw similarly bad issues with linux/fs.h (which is what I posted about in November/December), linux/mm.h and linux/netdevice.h on the high level, in low-level headers there are huge issues with linux/atomic.h, linux/mutex.h, linux/pgtable.h etc. I expect that you have addressed these as well,

Correct, each of these was a problem - and a *lot* of other headers in addition to those:

  kepler:~/mingo.tip.git> git diff --stat v5.16-rc8.. include/linux/ arch/*/include/asm/ | grep changed

    1335 files changed, 59677 insertions(+), 56582 deletions(-)

and I reduced all the kernels that showed up in the bloat-profile to a fraction of their orignal size:

    ------------------------------------------------------------------------------------------
    | Combined, preprocessed C code size of header, without line markers,
    | with comments stripped:
    ------------------------------.-----------------------------.-----------------------------
                                  | v5.16-rc7                   |  -fast-headers-v1
                                  |-----------------------------|-----------------------------
     #include <linux/sched.h>     | LOC: 13,292 | headers:  324 |  LOC:    769 | headers:   64
     #include <linux/wait.h>      | LOC:  9,369 | headers:  235 |  LOC:    483 | headers:   46
     #include <linux/rcupdate.h>  | LOC:  8,975 | headers:  224 |  LOC:  1,385 | headers:   86
     #include <linux/hrtimer.h>   | LOC: 10,861 | headers:  265 |  LOC:    229 | headers:   37
     #include <linux/fs.h>        | LOC: 22,497 | headers:  427 |  LOC:  1,993 | headers:  120
     #include <linux/cred.h>      | LOC: 17,257 | headers:  368 |  LOC:  4,830 | headers:  129
     #include <linux/dcache.h>    | LOC: 10,545 | headers:  253 |  LOC:    858 | headers:   65
     #include <linux/cgroup.h>    | LOC: 33,518 | headers:  522 |  LOC:  2,477 | headers:  111
     #include <linux/module.h>    | LOC: 16,948 | headers:  339 |  LOC:  2,239 | headers:  122
     #include <linux/kobject.h>   | LOC: 15,210 | headers:  318 |  LOC:    799 | headers:   59
     #include <linux/device.h>    | LOC: 20,505 | headers:  408 |  LOC:  2,131 | headers:  123
     #include <linux/gfp.h>       | LOC: 13,543 | headers:  303 |  LOC:    181 | headers:   26
     #include <linux/slab.h>      | LOC: 14,037 | headers:  307 |  LOC:    999 | headers:   74
     #include <linux/mm.h>        | LOC: 26,727 | headers:  453 |  LOC:  1,855 | headers:  133
     #include <linux/mmzone.h>    | LOC: 12,755 | headers:  293 |  LOC:    832 | headers:   64
     #include <linux/swap.h>      | LOC: 38,292 | headers:  559 |  LOC: 11,085 | headers:  294
     #include <linux/writeback.h> | LOC: 36,481 | headers:  550 |  LOC:  1,566 | headers:   92
     #include <linux/gfp.h>       | LOC: 13,543 | headers:  303 |  LOC:    181 | headers:   26
     #include <linux/skbuff.h>    | LOC: 36,130 | headers:  558 |  LOC:  1,209 | headers:   89
     #include <linux/tcp.h>       | LOC: 60,133 | headers:  725 |  LOC:  3,829 | headers:  153
     #include <linux/udp.h>       | LOC: 59,411 | headers:  721 |  LOC:  3,236 | headers:  146

Quoted 8 lines

     #include <linux/filter.h>    | LOC: 54,172 | headers:  689 |  LOC:  4,087 | headers:   73
     #include <linux/interrupt.h> | LOC: 14,085 | headers:  340 |  LOC:  2,629 | headers:  124

     #include <net/sock.h>        | LOC: 58,880 | headers:  715 |  LOC:  1,543 | headers:   98

     #include <asm/processor.h>   | LOC:  7,821 | headers:  204 |  LOC:    618 | headers:   41
     #include <asm/page.h>        | LOC:  1,540 | headers:   97 |  LOC:  1,193 | headers:   82
     #include <asm/pgtable.h>     | LOC: 12,949 | headers:  297 |  LOC:  5,742 | headers:  217

Ok, this is roughly the list of headers that I had looked at previously.

Quoted 4 lines

<linux/atomic.h> wasn't a particularly big problem - but it does get included everywhere, so I moved the most common atomic_t definition into <linux/types.h> (on 64-bit kernels), which allowed a big reduction for the majority of cases that don't use the atomic APIs:

Good, I have a patch for the same thing, including moving atomic64_t and atomic_long_t to linux/types.h there -- I don't think it would be good to have it in different places on 32-bit architectures.

On arm machines, I found atomic.h to be problematic because it is a large generated header that depends on the barriers which in turn require other stuff.

Quoted 5 lines

 #include <linux/atomic.h>               | LOC:    176 | headers:   26
 #include <linux/atomic_api.h>           | LOC:  2,785 | headers:   52
But <linux/atomic_api.h> is still included in ~75% of .c files, mostly for good reasons, because it's a very popular low level API.

These are the x86 numbers, right?

Quoted 5 lines

Quoted 2 lines
but I'd like to make sure that your changes are reasonably complete on arm32 and arm64 to avoid having to do the big cleanup more than once.
I did test ARM64 extensively in terms of build coverage - but not in terms of header bloat, and I'm sure more could be done there!

My guess is that each architecture has a couple of dark corners that require cleaning up before we actually see the benefit of the series. I'm personally most interested in arm32 and arm64 because that's what I do my testing on, and I'll try to find those corners. One thing I remember for arm32 is that there is a nasty dependency for get_current() - > PAGE_SIZE -> asm/pgtable.h, with pgtable including the world again. You probably got this one, but any such missing thing can can lead to the other cleanups not helping that much.

Quoted 13 lines

Quoted 3 lines
My approach to the large mid-level headers is somewhat different: rather than completely avoiding them from getting included, I would like to split up the structure definitions from the inline functions.
That's a big chunk of what the -fast-headers tree does: I've split over 85 headers into <linux/header_types.h> and <linux/header_api.h>...
I've also split up headers further where needed, in particular mm.h required multiple levels of splitting to get the dependencies of the most commonly used <linux/mm_types.h> and <linux/mm_api.h> headers under control:
kepler:~/mingo.tip.git> ls -ldt include/linux/mm*api*.h

Quoted 9 lines

  -rw-rw-r-- 1 mingo mingo 77130 Jan  4 13:32 include/linux/mm_api.h
  -rw-rw-r-- 1 mingo mingo 22227 Jan  4 13:32 include/linux/mmzone_api.h
  -rw-rw-r-- 1 mingo mingo  6759 Jan  4 13:32 include/linux/mm_api_extra.h
  -rw-rw-r-- 1 mingo mingo   479 Jan  4 13:31 include/linux/mm_api_exe_file.h
  -rw-rw-r-- 1 mingo mingo   960 Jan  4 13:31 include/linux/mm_api_truncate.h
  -rw-rw-r-- 1 mingo mingo  1262 Jan  4 13:31 include/linux/mm_api_kvmalloc.h
  -rw-rw-r-- 1 mingo mingo   719 Jan  4 13:31 include/linux/mm_api_gate_area.h
  -rw-rw-r-- 1 mingo mingo  1342 Jan  4 13:31 include/linux/mm_api_kasan.h
  -rw-rw-r-- 1 mingo mingo  3007 Jan  4 13:31 include/linux/mm_api_tlb_flush.h

Ah, good. That is pretty close to what I had in mind as well, so maybe we can convince Linus after all. ;-)

Quoted 43 lines

The results are pretty nice:

# vanilla:

   #include <linux/mm.h>                   | LOC: 26,728 | headers:  453

# -fast-headers:

   #include <linux/mm.h>                   | LOC:  1,855 | headers:  132  # == mm_types.h
   #include <linux/mm_types.h>             | LOC:  1,855 | headers:  131
   #include <linux/mm_api.h>               | LOC:  8,587 | headers:  229

And <linux/mm_api.h> is now included only in about 25% of the .c files - in the vanilla kernel the use percentage is over ~90%.

But despite all those reductions, <linux/mm_api.h> is still a header with one of the largest cumulative footprints within a (distro) kernel build:

                                                              | stripped lines of code
                                                              |              _____________________________
                                                              |             | headers included recursively
                                                              |             |                _______________________________
                                                              |             |               | usage in a distro kernel build
 ____________                                                 |             |               |         _________________________________________
| header name                                                 |             |               |        | million lines of comment-stripped C code
|                                                             |             |               |        |
  #include <linux/spinlock_api.h>                             | LOC:  5,142 | headers:  123 | 10,168 | MLOC:   52.2 | #############
  #include <linux/device/driver.h>                            | LOC:  4,132 | headers:  169 | 12,306 | MLOC:   50.8 | ############
  #include <linux/mm_api.h>                                   | LOC:  8,584 | headers:  230 |  5,135 | MLOC:   44.0 | ###########
  #include <linux/skbuff_api.h>                               | LOC:  8,404 | headers:  190 |  5,065 | MLOC:   42.5 | ##########
  #include <linux/atomic_api.h>                               | LOC:  2,785 | headers:   52 | 15,282 | MLOC:   42.5 | ##########
  #include <asm/spinlock.h>                                   | LOC:  4,039 | headers:   83 | 10,168 | MLOC:   41.0 | ##########
  #include <asm/qrwlock.h>                                    | LOC:  4,039 | headers:   82 | 10,168 | MLOC:   41.0 | ##########
  #include <asm-generic/qrwlock.h>                            | LOC:  4,039 | headers:   81 | 10,168 | MLOC:   41.0 | ##########
  #include <linux/page_ref.h>                                 | LOC:  5,397 | headers:  168 |  7,578 | MLOC:   40.8 | ##########
  #include <asm/qspinlock.h>                                  | LOC:  3,990 | headers:   80 | 10,169 | MLOC:   40.5 | ##########
  #include <linux/device_types.h>                             | LOC:  2,131 | headers:  122 | 17,424 | MLOC:   37.1 | #########
  #include <linux/module.h>                                   | LOC:  2,239 | headers:  122 | 16,472 | MLOC:   36.8 | #########
  #include <net/cfg80211.h>                                   | LOC: 29,004 | headers:  423 |  1,205 | MLOC:   34.9 | ########
  #include <linux/pci.h>                                      | LOC:  7,092 | headers:  232 |  4,849 | MLOC:   34.3 | ########
  #include <linux/netdevice_api.h>                            | LOC:  8,434 | headers:  225 |  4,065 | MLOC:   34.2 | ########
  #include <linux/refcount_api.h>                             | LOC:  3,421 | headers:   87 |  9,776 | MLOC:   33.4 | ########

Quoted 2 lines

( The 'MLOC' footprint estimate is number of usages times
preprocessed-stripped-header size. )

This is also the metric that I used in my scripts, except I measured the preprocessed
size in bytes instead of lines, which should make little difference.

Quoted 11 lines

I've reduced header bloat through three primary angles of attack:
- reducing number of inclusions
- reducing header size itself, by type/API splitting & by segmenting headers along API usage frequency
- decoupling headers from each other
As you can see, fast-headers -v1 is much improved (on x86), but there's plenty of work left, such as <net/cfg80211.h>. :-)

Right. I mainly focused on splitting types from the rest, which I think brings most of the benefits, but taking it further as you did here helps more.

Quoted 10 lines

Quoted 1 line
Linus didn't really like my approach,
Yeah, so without having a significant build time speedup I didn't like my approach(es) either, which is why I didn't post this tree for a long time. :-)
But the results speak for themselves IMO, and we cannot ignore this: my project actually accelerated as I progressed, because the kernel rebuilds, especially incremental ones, became faster and faster...
Linux kernel header dependencies need to be simplified.

Agreed. In my 2020 experiments, I managed to get from the point of cleaning up ~100 headers with very little effect (when everything was still included through some other header) to cleaning up the next 100 and seeing huge improvements but also getting discouraged because it started breaking every driver due to missing indirect includes.

Quoted 10 lines

Quoted 4 lines
but I suspect he'll have similar
concerns about your solution for linux/sched.h, especially if we end up applying the same hack to other commonly used structures (sk_buff, mm_struct, super_block) in the end.
So the per_task approach is pretty much unavoidable under the constraint of having no runtime overhead, given that task_struct is a historic union of a zillion types, where 99% of the users don't actually need to know about those types.

Quoted 4 lines

( We could eventually get rid of per_task() as well, by turning complex
embedded structs into pointers - but that has runtime overhead due to the indirections, and I tried hard to make this approach runtime-invariant, at least conceptually. )

Would it be possible to have one common task_struct definition that has all the frequently-accessed fields, plus another larger structure that embeds the smaller structure plus all the other stuff? I suppose that would require even larger scale reworks, but it may be a nicer end result. (again, I have yet to read your patches, so there is probably an obvious answer why you didn't do this).

Arnd

Paul Zimmerman

2022-01-05 05:20 UTC #39 lore raw

Re: [PATCH 0000/2297] [ANNOUNCE, RFC] "Fast Kernel Headers" Tree -v1: Eliminate the Linux kernel'\''s "Dependency Hell

In reply to Arnd Bergmann

Quoted 23 lines · Ingo Molnar

Quoted 9 lines · Nathan Chancellor
Quoted 6 lines
Quoted 3 lines
I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.
Yes, that seems right.
Quoted 8 lines
Quoted 5 lines
Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.
Yeah, there's a breakage window on ARM64, I'll track down that bisectability bug.
I haven't fixed this ARM64 bisection breakage yet, but I've integrated & backmerged all the other fixes and changes, and pushed it out to the WIP branch:

Quoted 5 lines

# 1755441e323b per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets
git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
Let me know if there's anything missing or if there's a new breakage.

Hi Ingo,

I get a bunch of build failures with this, all I think having to do with ‘struct task_struct’ being undeclared. First error:

In file included from /home/paulz/mingo/include/linux/srcu.h:23,
from /home/paulz/mingo/fs/notify/group.c:15:
/home/paulz/mingo/include/linux/rcuwait_api.h: In function ‘rcuwait_active’:
/home/paulz/mingo/include/linux/rcupdate.h:327:9: error: dereferencing pointer to incomplete type ‘struct task_struct’
327 | typeof(*p) *_________p1 = (typeof(*p) *__force)READ_ONCE(p); \
| ^
/home/paulz/mingo/include/linux/rcupdate.h:437:31: note: in expansion of macro ‘__rcu_access_pointer’
437 | #define rcu_access_pointer(p) __rcu_access_pointer((p), __rcu)

      |                               ^~~~~~~~~~~~~~~~~~~~
/home/paulz/mingo/include/linux/rcuwait_api.h:15:11: note: in expansion of macro ‘rcu_access_pointer’
   15 |  return !!rcu_access_pointer(w->task);
      |           ^~~~~~~~~~~~~~~~~~

make[3]: *** [/home/paulz/mingo/scripts/Makefile.build:287: fs/notify/group.o] Error 1 make[2]: *** [/home/paulz/mingo/scripts/Makefile.build:549: fs/notify] Error 2

This is on Ubuntu bullseye/sid x86-64 with a slimmed-down config, included here. gcc is (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0

Thanks,
Paul

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 5.16.0-rc8 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0" CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90300
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23400
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23400
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_INLINE=y CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
CONFIG_KERNEL_LZ4=y
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_WATCH_QUEUE=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_USELIB=y
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set

# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y

# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
CONFIG_USERMODE_DRIVER=y
# CONFIG_BPF_PRELOAD is not set
CONFIG_BPF_LSM=y

# end of BPF subsystem

CONFIG_PREEMPT_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
CONFIG_SCHED_CORE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_PSI=y
# CONFIG_PSI_DEFAULT_DISABLED is not set

# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RCU=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y

# end of RCU Subsystem

CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=m
CONFIG_FAST_HEADERS=y
# CONFIG_IKCONFIG_PROC is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
CONFIG_UCLAMP_TASK=y
CONFIG_UCLAMP_BUCKETS_COUNT=5

# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y CONFIG_CC_HAS_INT128=y CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5" CONFIG_ARCH_SUPPORTS_INT128=y CONFIG_NUMA_BALANCING=y CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
# CONFIG_RT_GROUP_SCHED is not set CONFIG_UCLAMP_TASK_GROUP=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
CONFIG_CGROUP_MISC=y
# CONFIG_CGROUP_DEBUG is not set CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_CHECKPOINT_RESTORE=y CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
CONFIG_BOOT_CONFIG=y CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y CONFIG_HAVE_ARCH_USERFAULTFD_WP=y CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y CONFIG_KALLSYMS_BASE_RELATIVE=y CONFIG_KALLSYMS_FAST=y
CONFIG_USERFAULTFD=y CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
# CONFIG_EMBEDDED is not set CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PC104=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set

# end of Kernel Performance Events And Counters

CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_SLAB_FREELIST_HARDENED=y
CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y

# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=1024
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_AUDIT_ARCH=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
CONFIG_X86_CPU_RESCTRL=y
CONFIG_X86_EXTENDED_PLATFORM=y
CONFIG_X86_NUMACHIP=y
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
CONFIG_X86_AMD_PLATFORM_DEVICE=y
CONFIG_IOSF_MBI=y
CONFIG_IOSF_MBI_DEBUG=y
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
# CONFIG_PARAVIRT is not set
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS_RANGE_BEGIN=8192
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=8192
CONFIG_NR_CPUS=8192
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
CONFIG_PERF_EVENTS_AMD_POWER=m
CONFIG_PERF_EVENTS_AMD_UNCORE=y

# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y CONFIG_X86_VSYSCALL_EMULATION=y CONFIG_X86_IOPL_IOPERM=y
# CONFIG_I8K is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y CONFIG_MICROCODE_AMD=y CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
# CONFIG_X86_5LEVEL is not set CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set CONFIG_AMD_MEM_ENCRYPT=y
# CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is not set CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
# CONFIG_NUMA_EMU is not set CONFIG_NODES_SHIFT=10 CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_DEFAULT=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_ARCH_MEMORY_PROBE=y CONFIG_ARCH_PROC_KCORE_TEXT=y CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 CONFIG_X86_PMEM_LEGACY_DEVICE=y CONFIG_X86_PMEM_LEGACY=y CONFIG_X86_CHECK_BIOS_CORRUPTION=y CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1 CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1 CONFIG_X86_PAT=y CONFIG_ARCH_USES_PG_UNCACHED=y CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_UMIP=y CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
# CONFIG_X86_SGX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_MIXED=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y CONFIG_ARCH_HAS_KEXEC_PURGATORY=y CONFIG_KEXEC_SIG=y
# CONFIG_KEXEC_SIG_FORCE is not set CONFIG_KEXEC_BZIMAGE_VERIFY_SIG=y CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y CONFIG_PHYSICAL_START=0x1000000 CONFIG_RELOCATABLE=y
CONFIG_RANDOMIZE_BASE=y CONFIG_X86_NEED_RELOCS=y CONFIG_PHYSICAL_ALIGN=0x200000 CONFIG_DYNAMIC_MEMORY_LAYOUT=y CONFIG_RANDOMIZE_MEMORY=y CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_LEGACY_VSYSCALL_EMULATE is not set CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set CONFIG_HAVE_LIVEPATCH=y
# CONFIG_LIVEPATCH is not set

# end of Processor type and features

CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_LIMIT=100
CONFIG_PM_WAKELOCKS_GC=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_CLK=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
CONFIG_ACPI_DEBUGGER=y
CONFIG_ACPI_DEBUGGER_USER=y
CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_FPDT=y
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_TAD is not set
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_DEBUG=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NFIT is not set
CONFIG_ACPI_NUMA=y
CONFIG_ACPI_HMAT=y
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
CONFIG_ACPI_DPTF=y
# CONFIG_DPTF_POWER is not set
# CONFIG_DPTF_PCH_FIVR is not set
# CONFIG_ACPI_EXTLOG is not set
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_VIOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_PRMT=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_GOV_ATTR_SET=y CONFIG_CPU_FREQ_GOV_COMMON=y CONFIG_CPU_FREQ_STAT=y CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
CONFIG_X86_PCC_CPUFREQ=y
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=y
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
CONFIG_X86_SPEEDSTEP_CENTRINO=y
# CONFIG_X86_P4_CLOCKMOD is not set

# shared options
#
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
CONFIG_CPU_IDLE_GOV_TEO=y

# end of CPU Idle

CONFIG_INTEL_IDLE=y

# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
CONFIG_ISA_BUS=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y

# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
CONFIG_X86_X32=y
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y

# end of Binary Emulations

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_WERROR=y
CONFIG_KVM_INTEL=m
CONFIG_KVM_AMD=m
CONFIG_KVM_XEN=y
# CONFIG_KVM_MMU_AUDIT is not set
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set CONFIG_OPTPROBES=y CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_ARCH_USE_BUILTIN_BSWAP=y CONFIG_KRETPROBES=y CONFIG_USER_RETURN_NOTIFIER=y CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_OPTPROBES=y CONFIG_HAVE_KPROBES_ON_FTRACE=y CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y CONFIG_HAVE_NMI=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_CONTIGUOUS=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_ARCH_HAS_FORTIFY_SOURCE=y CONFIG_ARCH_HAS_SET_MEMORY=y CONFIG_ARCH_HAS_SET_DIRECT_MAP=y CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y CONFIG_ARCH_WANTS_NO_INSTR=y CONFIG_HAVE_ASM_MODVERSIONS=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_RSEQ=y CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y CONFIG_HAVE_HW_BREAKPOINT=y CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y CONFIG_HAVE_PERF_REGS=y CONFIG_HAVE_PERF_USER_STACK_DUMP=y CONFIG_HAVE_ARCH_JUMP_LABEL=y CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y CONFIG_HAVE_CMPXCHG_LOCAL=y CONFIG_HAVE_CMPXCHG_DOUBLE=y CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y CONFIG_HAVE_ARCH_SECCOMP=y CONFIG_HAVE_ARCH_SECCOMP_FILTER=y CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set CONFIG_HAVE_ARCH_STACKLEAK=y CONFIG_HAVE_STACKPROTECTOR=y CONFIG_STACKPROTECTOR=y CONFIG_STACKPROTECTOR_STRONG=y CONFIG_ARCH_SUPPORTS_LTO_CLANG=y CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y CONFIG_LTO_NONE=y CONFIG_ARCH_SUPPORTS_PER_TASK=y CONFIG_ARCH_SUPPORTS_PER_TASK_0_OFFSET=y CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y CONFIG_HAVE_CONTEXT_TRACKING=y CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK=y CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y CONFIG_HAVE_MOVE_PUD=y CONFIG_HAVE_MOVE_PMD=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y CONFIG_HAVE_ARCH_HUGE_VMAP=y CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y CONFIG_HAVE_ARCH_SOFT_DIRTY=y CONFIG_HAVE_MOD_ARCH_SPECIFIC=y CONFIG_MODULES_USE_ELF_RELA=y CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y CONFIG_ARCH_HAS_ELF_RANDOMIZE=y CONFIG_HAVE_ARCH_MMAP_RND_BITS=y CONFIG_HAVE_EXIT_THREAD=y CONFIG_ARCH_MMAP_RND_BITS=28 CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8 CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y CONFIG_PAGE_SIZE_LESS_THAN_64KB=y CONFIG_HAVE_STACK_VALIDATION=y CONFIG_HAVE_RELIABLE_STACKTRACE=y CONFIG_HAVE_OBJTOOL_KALLSYMS=y CONFIG_OLD_SIGSUSPEND3=y CONFIG_COMPAT_OLD_SIGACTION=y CONFIG_COMPAT_32BIT_TIME=y CONFIG_HAVE_ARCH_VMAP_STACK=y CONFIG_VMAP_STACK=y CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y # CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y CONFIG_STRICT_KERNEL_RWX=y CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y CONFIG_STRICT_MODULE_RWX=y CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set CONFIG_ARCH_HAS_MEM_ENCRYPT=y CONFIG_ARCH_HAS_CC_PLATFORM=y CONFIG_HAVE_STATIC_CALL=y CONFIG_HAVE_STATIC_CALL_INLINE=y CONFIG_HAVE_PREEMPT_DYNAMIC=y CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_ARCH_HAS_ELFCORE_COMPAT=y CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y CONFIG_DYNAMIC_SIGFRAME=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y

# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set

# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
# CONFIG_MODULE_SIG_SHA256 is not set
# CONFIG_MODULE_SIG_SHA384 is not set CONFIG_MODULE_SIG_SHA512=y CONFIG_MODULE_SIG_HASH="sha512" CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_TRIM_UNUSED_KSYMS is not set CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_RQ_ALLOC_TIME=y CONFIG_BLK_CGROUP_RWSTAT=y CONFIG_BLK_DEV_BSG_COMMON=y CONFIG_BLK_DEV_BSGLIB=y CONFIG_BLK_DEV_INTEGRITY=y CONFIG_BLK_DEV_INTEGRITY_T10=y CONFIG_BLK_DEV_ZONED=y CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set CONFIG_BLK_CGROUP_IOCOST=y
# CONFIG_BLK_CGROUP_IOPRIO is not set CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
CONFIG_BLK_SED_OPAL=y CONFIG_BLK_INLINE_ENCRYPTION=y CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
CONFIG_AIX_PARTITION=y
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_CMDLINE_PARTITION=y

# end of Partition Types

CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set

# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y

# end of Executable file formats

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y CONFIG_SPARSEMEM_VMEMMAP=y CONFIG_HAVE_FAST_GUP=y CONFIG_NUMA_KEEP_MEMINFO=y CONFIG_MEMORY_ISOLATION=y CONFIG_EXCLUSIVE_SYSTEM_RAM=y CONFIG_HAVE_BOOTMEM_INFO_NODE=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y CONFIG_MEMORY_HOTREMOVE=y CONFIG_MHP_MEMMAP_ON_MEMORY=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y CONFIG_MEMORY_BALLOON=y CONFIG_BALLOON_COMPACTION=y CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y CONFIG_ARCH_ENABLE_THP_MIGRATION=y CONFIG_CONTIG_ALLOC=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y CONFIG_MEMORY_FAILURE=y
# CONFIG_HWPOISON_INJECT is not set CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y CONFIG_ARCH_WANTS_THP_SWAP=y CONFIG_THP_SWAP=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set CONFIG_CMA_SYSFS=y
CONFIG_CMA_AREAS=7
CONFIG_MEM_SOFT_DIRTY=y
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set # CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set # CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set # CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo" CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set # CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
# CONFIG_ZSWAP_DEFAULT_ON is not set CONFIG_ZPOOL=y
CONFIG_ZBUD=y
# CONFIG_Z3FOLD is not set
CONFIG_ZSMALLOC=y
# CONFIG_ZSMALLOC_STAT is not set CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set CONFIG_PAGE_IDLE_FLAG=y CONFIG_IDLE_PAGE_TRACKING=y CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y CONFIG_ARCH_HAS_PTE_DEVMAP=y CONFIG_ARCH_HAS_ZONE_DMA_SET=y CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y CONFIG_DEV_PAGEMAP_OPS=y CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y CONFIG_ARCH_HAS_PKEYS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
# CONFIG_READ_ONLY_THP_FOR_FS is not set CONFIG_ARCH_HAS_PTE_SPECIAL=y CONFIG_SECRETMEM=y

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set

# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_NV is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_TCP_CONG_DCTCP is not set
# CONFIG_TCP_CONG_CDG is not set
# CONFIG_TCP_CONG_BBR is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_ILA is not set
# CONFIG_IPV6_VTI is not set
# CONFIG_IPV6_SIT is not set
# CONFIG_IPV6_TUNNEL is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_IPV6_SEG6_LWTUNNEL=y
CONFIG_IPV6_SEG6_HMAC=y
CONFIG_IPV6_SEG6_BPF=y
CONFIG_IPV6_RPL_LWTUNNEL=y
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
CONFIG_MPTCP=y
CONFIG_MPTCP_IPV6=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NETFILTER_NETLINK_OSF is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NF_LOG_SYSLOG is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set

#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_AUDIT is not set
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_SECMARK is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set

#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set

# end of Core Netfilter Configuration

# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_SOCKET_IPV4 is not set
# CONFIG_NF_TPROXY_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
# CONFIG_NF_REJECT_IPV4 is not set
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_TTL is not set
# CONFIG_IP_NF_FILTER is not set
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
# CONFIG_IP_NF_ARPTABLES is not set

# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_SOCKET_IPV6 is not set
# CONFIG_NF_TPROXY_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
# CONFIG_NF_REJECT_IPV6 is not set
# CONFIG_NF_LOG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set

# end of IPv6: Netfilter Configuration

CONFIG_BPFILTER=y
# CONFIG_BPFILTER_UMH is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFB is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
# CONFIG_NET_SCH_TAPRIO is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_MQPRIO is not set
# CONFIG_NET_SCH_SKBPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
CONFIG_NET_SCH_FQ_CODEL=m
# CONFIG_NET_SCH_CAKE is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
# CONFIG_NET_SCH_INGRESS is not set
# CONFIG_NET_SCH_PLUG is not set
# CONFIG_NET_SCH_ETS is not set
# CONFIG_NET_SCH_DEFAULT is not set

#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
# CONFIG_NET_CLS_CGROUP is not set
# CONFIG_NET_CLS_BPF is not set
# CONFIG_NET_CLS_FLOWER is not set
# CONFIG_NET_CLS_MATCHALL is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
# CONFIG_NET_EMATCH_CMP is not set
# CONFIG_NET_EMATCH_NBYTE is not set
# CONFIG_NET_EMATCH_U32 is not set
# CONFIG_NET_EMATCH_META is not set
# CONFIG_NET_EMATCH_TEXT is not set
# CONFIG_NET_EMATCH_IPT is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_SAMPLE is not set
# CONFIG_NET_ACT_IPT is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
# CONFIG_NET_ACT_MPLS is not set
# CONFIG_NET_ACT_VLAN is not set
# CONFIG_NET_ACT_BPF is not set
# CONFIG_NET_ACT_SKBMOD is not set
# CONFIG_NET_ACT_IFE is not set
# CONFIG_NET_ACT_TUNNEL_KEY is not set
# CONFIG_NET_ACT_GATE is not set
CONFIG_NET_TC_SKB_EXT=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
CONFIG_MPLS=y
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_MPLS_ROUTING is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
CONFIG_NET_NCSI=y
CONFIG_NCSI_OEM_CMD_GET_MAC=y
# CONFIG_NCSI_OEM_CMD_KEEP_PHY is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NET_DROP_MONITOR=y

# end of Network testing
# end of Networking options

CONFIG_HAMRADIO=y

#
# Packet Radio protocols
#
# CONFIG_AX25 is not set
# CONFIG_CAN is not set
CONFIG_BT=m
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
# CONFIG_BT_CMTP is not set
# CONFIG_BT_HIDP is not set
# CONFIG_BT_HS is not set
CONFIG_BT_LE=y
CONFIG_BT_LEDS=y
CONFIG_BT_MSFTEXT=y
# CONFIG_BT_AOSPEXT is not set
CONFIG_BT_DEBUGFS=y
# CONFIG_BT_SELFTEST is not set

#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=m
CONFIG_BT_BCM=m
CONFIG_BT_RTL=m
CONFIG_BT_HCIBTUSB=m
CONFIG_BT_HCIBTUSB_AUTOSUSPEND=y
CONFIG_BT_HCIBTUSB_BCM=y
CONFIG_BT_HCIBTUSB_MTK=y
CONFIG_BT_HCIBTUSB_RTL=y
# CONFIG_BT_HCIBTSDIO is not set
# CONFIG_BT_HCIUART is not set
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_BT_MRVL is not set
# CONFIG_BT_ATH3K is not set
# CONFIG_BT_MTKSDIO is not set
# CONFIG_BT_MTKUART is not set
# CONFIG_BT_VIRTIO is not set

# end of Bluetooth device drivers

# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
CONFIG_CFG80211_DEBUGFS=y
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
CONFIG_MAC80211_MESSAGE_TRACING=y
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
CONFIG_EISA=y
CONFIG_EISA_VLB_PRIMING=y
CONFIG_EISA_PCI_EISA=y
CONFIG_EISA_VIRTUAL_ROOT=y
CONFIG_EISA_NAMES=y
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
# CONFIG_PCIEAER_INJECT is not set
# CONFIG_PCIE_ECRC is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
CONFIG_PCIE_PTM=y
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_REALLOC_ENABLE_AUTO=y
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_PF_STUB is not set
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
# CONFIG_PCIE_BUS_TUNE_OFF is not set
CONFIG_PCIE_BUS_DEFAULT=y
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
# CONFIG_PCIE_BUS_PEER2PEER is not set
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
# CONFIG_HOTPLUG_PCI_ACPI_IBM is not set
CONFIG_HOTPLUG_PCI_CPCI=y
# CONFIG_HOTPLUG_PCI_CPCI_ZT5550 is not set
# CONFIG_HOTPLUG_PCI_CPCI_GENERIC is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# PCI controller drivers
#
# CONFIG_VMD is not set

#
# DesignWare PCI Core Support
#
CONFIG_PCIE_DW=y
CONFIG_PCIE_DW_HOST=y
CONFIG_PCIE_DW_EP=y
CONFIG_PCIE_DW_PLAT=y
CONFIG_PCIE_DW_PLAT_HOST=y
CONFIG_PCIE_DW_PLAT_EP=y
# CONFIG_PCI_MESON is not set

# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#

# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#

# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
CONFIG_PCI_ENDPOINT=y
CONFIG_PCI_ENDPOINT_CONFIGFS=y
# CONFIG_PCI_EPF_TEST is not set
CONFIG_PCI_EPF_NTB=m

# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set

# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
CONFIG_RAPIDIO=y
# CONFIG_RAPIDIO_TSI721 is not set
CONFIG_RAPIDIO_DISC_TIMEOUT=30
# CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS is not set
CONFIG_RAPIDIO_DMA_ENGINE=y
# CONFIG_RAPIDIO_DEBUG is not set
# CONFIG_RAPIDIO_ENUM_BASIC is not set
# CONFIG_RAPIDIO_CHMAN is not set
# CONFIG_RAPIDIO_MPORT_CDEV is not set

#
# RapidIO Switch drivers
#
# CONFIG_RAPIDIO_TSI57X is not set
# CONFIG_RAPIDIO_CPS_XX is not set
# CONFIG_RAPIDIO_TSI568 is not set
# CONFIG_RAPIDIO_CPS_GEN2 is not set
# CONFIG_RAPIDIO_RXS_GEN3 is not set

# end of RapidIO Switch drivers

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y CONFIG_FW_LOADER_PAGED_BUF=y CONFIG_EXTRA_FIRMWARE="" CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set CONFIG_FW_LOADER_COMPRESS=y CONFIG_FW_CACHE=y

# end of Firmware loader

CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_HMEM_REPORTING=y
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_REGMAP_SOUNDWIRE=m
CONFIG_REGMAP_SOUNDWIRE_MBQ=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set

# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set

# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol #

# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=y
CONFIG_EDD_OFF=y
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_SYSFB=y
CONFIG_SYSFB_SIMPLEFB=y
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_ESRT=y
# CONFIG_EFI_VARS_PSTORE is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_SOFT_RESERVE=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
CONFIG_APPLE_PROPERTIES=y
CONFIG_RESET_ATTACK_MITIGATION=y
CONFIG_EFI_RCI2_TABLE=y
# CONFIG_EFI_DISABLE_PCI_DMA is not set

# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y
CONFIG_EFI_DEV_PATH_PARSER=y
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y

#
# Tegra firmware driver
#

# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=y
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_VIRTIO_BLK is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
CONFIG_NVME_HWMON=y
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# CONFIG_NVME_TARGET is not set

# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_SGI_XP is not set
# CONFIG_HP_ILO is not set
# CONFIG_SGI_GRU is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
CONFIG_SRAM=y
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=m
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set

# end of EEPROM support

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline #
# CONFIG_TI_ST is not set

# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
CONFIG_INTEL_MEI_HDCP=m
CONFIG_INTEL_MEI_PXP=m
# CONFIG_VMWARE_VMCI is not set
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
CONFIG_MISC_RTSX_PCI=m
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_HABANA_AI is not set
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set

# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set

# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
# CONFIG_MEGARAID_MM is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_UFS_HWMON is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_VIRTIO is not set
CONFIG_SCSI_DH=y
# CONFIG_SCSI_DH_RDAC is not set
# CONFIG_SCSI_DH_HP_SW is not set
# CONFIG_SCSI_DH_EMC is not set
# CONFIG_SCSI_DH_ALUA is not set

# end of SCSI device support

CONFIG_ATA=y
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_ZPODD=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=3
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_SATA_INIC162X is not set
CONFIG_SATA_ACARD_AHCI=m
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
CONFIG_PATA_SIS=y
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_UNSTRIPED is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_WRITECACHE is not set
# CONFIG_DM_EBS is not set
# CONFIG_DM_ERA is not set
# CONFIG_DM_CLONE is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_RAID is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_DUST is not set
CONFIG_DM_INIT=y
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_DM_INTEGRITY is not set
# CONFIG_DM_ZONED is not set
# CONFIG_DM_AUDIT is not set
# CONFIG_TARGET_CORE is not set
CONFIG_FUSION=y
# CONFIG_FUSION_SPI is not set
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_LOGGING=y

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set

# end of IEEE 1394 (FireWire) support

CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=m
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
CONFIG_NET_FC=y
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_AMT is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_RIONET is not set
CONFIG_TUN=y
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_VIRTIO_NET is not set
# CONFIG_NLMON is not set
# CONFIG_NET_VRF is not set
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL3 is not set
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
# CONFIG_AMD_XGBE is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
# CONFIG_CAVIUM_PTP is not set
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CIRRUS=y
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_HINIC is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=m
CONFIG_E1000=m
CONFIG_E1000E=m
CONFIG_E1000E_HWTS=y
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGBVF=m
CONFIG_IXGB=m
CONFIG_IXGBE=m
CONFIG_IXGBE_HWMON=y
# CONFIG_IXGBE_DCB is not set
CONFIG_IXGBEVF=m
CONFIG_I40E=m
# CONFIG_I40E_DCB is not set
CONFIG_IAVF=m
CONFIG_I40EVF=m
CONFIG_ICE=m
CONFIG_ICE_SWITCHDEV=y
CONFIG_FM10K=m
CONFIG_IGC=m
CONFIG_NET_VENDOR_MICROSOFT=y
CONFIG_JME=m
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
# CONFIG_LAN743X is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_IONIC is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
CONFIG_LED_TRIGGER_PHY=y
CONFIG_FIXED_PHY=y

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AX88796B_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set

# end of PCS device drivers

# CONFIG_PLIP is not set
CONFIG_PPP=y
# CONFIG_PPP_BSDCOMP is not set
# CONFIG_PPP_DEFLATE is not set
CONFIG_PPP_FILTER=y
# CONFIG_PPP_MPPE is not set
CONFIG_PPP_MULTILINK=y
# CONFIG_PPPOE is not set
# CONFIG_PPP_ASYNC is not set
# CONFIG_PPP_SYNC_TTY is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=y
CONFIG_USB_NET_DRIVERS=m
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_AX8817X is not set
CONFIG_USB_NET_AX88179_178A=m
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
CONFIG_ATH5K_PCI=y
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
CONFIG_IWLWIFI=m
CONFIG_IWLWIFI_LEDS=y
# CONFIG_IWLDVM is not set
CONFIG_IWLMVM=m
CONFIG_IWLWIFI_OPMODE_MODULAR=y
# CONFIG_IWLWIFI_BCAST_FILTERING is not set

#
# Debugging Options
#
# CONFIG_IWLWIFI_DEBUG is not set
CONFIG_IWLWIFI_DEBUGFS=y
CONFIG_IWLWIFI_DEVICE_TRACING=y

# end of Debugging Options

CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
CONFIG_WLAN_VENDOR_MEDIATEK=y
# CONFIG_MT7601U is not set
# CONFIG_MT76x0U is not set
# CONFIG_MT76x0E is not set
# CONFIG_MT76x2E is not set
# CONFIG_MT76x2U is not set
# CONFIG_MT7603E is not set
# CONFIG_MT7615E is not set
# CONFIG_MT7663U is not set
# CONFIG_MT7663S is not set
# CONFIG_MT7915E is not set
# CONFIG_MT7921E is not set
# CONFIG_MT7921S is not set
CONFIG_WLAN_VENDOR_MICROCHIP=y
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
# CONFIG_RTL_CARDS is not set
# CONFIG_RTL8XXXU is not set
# CONFIG_RTW88 is not set
# CONFIG_RTW89 is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_QTNFMAC_PCIE is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
CONFIG_WAN=y
# CONFIG_HDLC is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set

# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
# CONFIG_NET_FAILOVER is not set
CONFIG_ISDN=y
CONFIG_ISDN_CAPI=y
# CONFIG_MISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=m
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5520 is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_TWL4030 is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
CONFIG_MOUSE_PS2_TOUCHKIT=y
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
# CONFIG_JOYSTICK_A3D is not set
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
# CONFIG_JOYSTICK_GRIP is not set
# CONFIG_JOYSTICK_GRIP_MP is not set
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
# CONFIG_JOYSTICK_SIDEWINDER is not set
# CONFIG_JOYSTICK_TMDC is not set
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
# CONFIG_JOYSTICK_ZHENHUA is not set
# CONFIG_JOYSTICK_DB9 is not set
# CONFIG_JOYSTICK_GAMECON is not set
# CONFIG_JOYSTICK_TURBOGRAFX is not set
# CONFIG_JOYSTICK_AS5011 is not set
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_XPAD is not set
# CONFIG_JOYSTICK_WALKERA0701 is not set
# CONFIG_JOYSTICK_PSXPAD_SPI is not set
# CONFIG_JOYSTICK_PXRC is not set
# CONFIG_JOYSTICK_QWIIC is not set
# CONFIG_JOYSTICK_FSIA6B is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_PEGASUS is not set
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_88PM860X is not set
# CONFIG_TOUCHSCREEN_ADS7846 is not set
# CONFIG_TOUCHSCREEN_AD7877 is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_BU21029 is not set
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8505 is not set
# CONFIG_TOUCHSCREEN_CY8CTMA140 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
# CONFIG_TOUCHSCREEN_DA9034 is not set
# CONFIG_TOUCHSCREEN_DA9052 is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
# CONFIG_TOUCHSCREEN_EXC3000 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GOODIX is not set
# CONFIG_TOUCHSCREEN_HIDEEP is not set
# CONFIG_TOUCHSCREEN_HYCON_HY46XX is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_ILITEK is not set
# CONFIG_TOUCHSCREEN_S6SY761 is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_EKTF2127 is not set
CONFIG_TOUCHSCREEN_ELAN=y
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set
# CONFIG_TOUCHSCREEN_MSG2638 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
# CONFIG_TOUCHSCREEN_WM831X is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2004 is not set
# CONFIG_TOUCHSCREEN_TSC2005 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_PCAP is not set
# CONFIG_TOUCHSCREEN_RM_TS is not set
# CONFIG_TOUCHSCREEN_SILEAD is not set
# CONFIG_TOUCHSCREEN_SIS_I2C is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_STMFTS is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set
# CONFIG_TOUCHSCREEN_SX8654 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZET6223 is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
# CONFIG_TOUCHSCREEN_IQS5XX is not set
# CONFIG_TOUCHSCREEN_ZINITIX is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_88PM860X_ONKEY is not set
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_MAX77693_HAPTIC is not set
# CONFIG_INPUT_MAX8925_ONKEY is not set
# CONFIG_INPUT_MAX8997_HAPTIC is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_APANEL is not set
# CONFIG_INPUT_GPIO_BEEPER is not set
# CONFIG_INPUT_GPIO_DECODER is not set
# CONFIG_INPUT_GPIO_VIBRA is not set
# CONFIG_INPUT_ATLAS_BTNS is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
# CONFIG_INPUT_TWL4030_PWRBUTTON is not set
# CONFIG_INPUT_TWL4030_VIBRA is not set
# CONFIG_INPUT_TWL6040_VIBRA is not set
CONFIG_INPUT_UINPUT=y
# CONFIG_INPUT_PALMAS_PWRBUTTON is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_PWM_BEEPER is not set
# CONFIG_INPUT_PWM_VIBRA is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_DA7280_HAPTICS is not set
# CONFIG_INPUT_DA9052_ONKEY is not set
# CONFIG_INPUT_DA9055_ONKEY is not set
# CONFIG_INPUT_DA9063_ONKEY is not set
# CONFIG_INPUT_WM831X_ON is not set
# CONFIG_INPUT_PCAP is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_IQS269A is not set
# CONFIG_INPUT_IQS626A is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set

# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=0
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set CONFIG_SERIAL_8250_PNP=y CONFIG_SERIAL_8250_16550A_VARIANTS=y CONFIG_SERIAL_8250_FINTEK=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DMA=y CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_EXAR is not set CONFIG_SERIAL_8250_NR_UARTS=48 CONFIG_SERIAL_8250_RUNTIME_UARTS=32 CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set CONFIG_SERIAL_8250_RT288X=y
# CONFIG_SERIAL_8250_LPSS is not set
# CONFIG_SERIAL_8250_MID is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_KGDB_NMI=y
# CONFIG_SERIAL_MAX3100 is not set
CONFIG_SERIAL_MAX310X=y
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_LANTIQ is not set
CONFIG_SERIAL_SCCNXP=y
CONFIG_SERIAL_SCCNXP_CONSOLE=y
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set

# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_N_HDLC is not set
# CONFIG_N_GSM is not set
# CONFIG_NOZOMI is not set
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
CONFIG_SERIAL_DEV_BUS=y
CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_TTY_PRINTK=y
CONFIG_TTY_PRINTK_LEVEL=6
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
# CONFIG_HW_RANDOM_VIA is not set
# CONFIG_HW_RANDOM_VIRTIO is not set
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
# CONFIG_NVRAM is not set
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
CONFIG_HPET_MMAP_DEFAULT=y
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_UV_MMTIMER is not set
CONFIG_TCG_TPM=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
CONFIG_TCG_TIS_SPI=m
CONFIG_TCG_TIS_SPI_CR50=y
CONFIG_TCG_TIS_I2C_CR50=m
# CONFIG_TCG_TIS_I2C_ATMEL is not set
# CONFIG_TCG_TIS_I2C_INFINEON is not set
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
# CONFIG_TCG_NSC is not set
# CONFIG_TCG_ATMEL is not set
# CONFIG_TCG_INFINEON is not set
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
# CONFIG_TELCLOCK is not set
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y

# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_MUX_MLXCPLD is not set

# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_CHT_WC is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip) #
# CONFIG_I2C_CBUS_GPIO is not set CONFIG_I2C_DESIGNWARE_CORE=y
# CONFIG_I2C_DESIGNWARE_SLAVE is not set CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
# CONFIG_I2C_VIRTIO is not set

# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set

# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
CONFIG_SPI_MEM=y

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
CONFIG_SPI_PXA2XX=m
CONFIG_SPI_PXA2XX_PCI=m
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
CONFIG_SPI_SLAVE=y
# CONFIG_SPI_SLAVE_TIME is not set
# CONFIG_SPI_SLAVE_SYSTEM_CONTROL is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# CONFIG_DP83640_PHY is not set
# CONFIG_PTP_1588_CLOCK_INES is not set
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set

# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
CONFIG_PINCTRL_AMD=y
# CONFIG_PINCTRL_MCP23S08 is not set
CONFIG_PINCTRL_SX150X=y

#
# Intel pinctrl drivers
#
CONFIG_PINCTRL_BAYTRAIL=y
CONFIG_PINCTRL_CHERRYVIEW=y
# CONFIG_PINCTRL_LYNXPOINT is not set
CONFIG_PINCTRL_INTEL=y
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
CONFIG_PINCTRL_CANNONLAKE=m
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
# CONFIG_PINCTRL_TIGERLAKE is not set

# end of Intel pinctrl drivers

#
# Renesas pinctrl drivers
#

# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_AMD_FCH is not set

# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_104_DIO_48E is not set
# CONFIG_GPIO_104_IDIO_16 is not set
# CONFIG_GPIO_104_IDI_48 is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_GPIO_MM is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set

# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set

# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_GPIO_ADP5520 is not set
# CONFIG_GPIO_CRYSTAL_COVE is not set
# CONFIG_GPIO_DA9052 is not set
# CONFIG_GPIO_DA9055 is not set
CONFIG_GPIO_PALMAS=y
CONFIG_GPIO_RC5T583=y
CONFIG_GPIO_TPS6586X=y
CONFIG_GPIO_TPS65910=y
# CONFIG_GPIO_TPS65912 is not set
# CONFIG_GPIO_TWL4030 is not set
# CONFIG_GPIO_TWL6040 is not set
CONFIG_GPIO_WHISKEY_COVE=m
# CONFIG_GPIO_WM831X is not set
# CONFIG_GPIO_WM8350 is not set

# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set

# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set

# end of SPI GPIO expanders

#
# USB GPIO expanders
#

# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set

# end of Virtual GPIO drivers

# CONFIG_W1 is not set
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_RESTART=y
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_PDA_POWER is not set
# CONFIG_MAX8925_POWER is not set
# CONFIG_WM831X_BACKUP is not set
# CONFIG_WM831X_POWER is not set
# CONFIG_WM8350_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_88PM860X is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_DA9030 is not set
# CONFIG_BATTERY_DA9052 is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
CONFIG_CHARGER_MANAGER=y
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX14577 is not set
# CONFIG_CHARGER_MAX77693 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_CHARGER_TPS65090 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AS370 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_DELL_SMM=m
# CONFIG_SENSORS_DA9052_ADC is not set
# CONFIG_SENSORS_DA9055 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_I5500 is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_MLXREG_FAN is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_TMP513 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83773G is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_WM831X is not set
# CONFIG_SENSORS_WM8350 is not set
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set CONFIG_THERMAL=y
CONFIG_THERMAL_NETLINK=y CONFIG_THERMAL_STATISTICS=y CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0 CONFIG_THERMAL_HWMON=y CONFIG_THERMAL_WRITABLE_TRIPS=y CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set # CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set CONFIG_THERMAL_GOV_FAIR_SHARE=y CONFIG_THERMAL_GOV_STEP_WISE=y CONFIG_THERMAL_GOV_BANG_BANG=y CONFIG_THERMAL_GOV_USER_SPACE=y CONFIG_DEVFREQ_THERMAL=y CONFIG_THERMAL_EMULATION=y

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_PKG_TEMP_THERMAL=m
CONFIG_INTEL_SOC_DTS_IOSF_CORE=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
CONFIG_INT340X_THERMAL=m
CONFIG_ACPI_THERMAL_REL=m
# CONFIG_INT3406_THERMAL is not set
CONFIG_PROC_THERMAL_MMIO_RAPL=m

# end of ACPI INT340X thermal drivers

CONFIG_INTEL_BXT_PMIC_THERMAL=m
CONFIG_INTEL_PCH_THERMAL=m
CONFIG_INTEL_TCC_COOLING=m
# CONFIG_INTEL_MENLOW is not set

# end of Intel thermal drivers

CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=y
# CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC is not set
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP=y

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_DA9052_WATCHDOG is not set
# CONFIG_DA9055_WATCHDOG is not set
# CONFIG_DA9063_WATCHDOG is not set
# CONFIG_WDAT_WDT is not set
# CONFIG_WM831X_WATCHDOG is not set
# CONFIG_WM8350_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_MLX_WDT is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_TWL4030_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_EBC_C384_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_INTEL_MEI_WDT is not set
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
CONFIG_MFD_AS3711=y
CONFIG_PMIC_ADP5520=y
CONFIG_MFD_AAT2870_CORE=y
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
CONFIG_PMIC_DA903X=y
CONFIG_PMIC_DA9052=y
CONFIG_MFD_DA9052_SPI=y
CONFIG_MFD_DA9052_I2C=y
CONFIG_MFD_DA9055=y
# CONFIG_MFD_DA9062 is not set
CONFIG_MFD_DA9063=y
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_HTC_PASIC3 is not set
CONFIG_HTC_I2CPLD=y
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
CONFIG_INTEL_SOC_PMIC=y
CONFIG_INTEL_SOC_PMIC_BXTWC=m
CONFIG_INTEL_SOC_PMIC_CHTWC=y
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
# CONFIG_INTEL_SOC_PMIC_MRFLD is not set
CONFIG_MFD_INTEL_LPSS=m
CONFIG_MFD_INTEL_LPSS_ACPI=m
CONFIG_MFD_INTEL_LPSS_PCI=m
CONFIG_MFD_INTEL_PMC_BXT=m
CONFIG_MFD_INTEL_PMT=m
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
CONFIG_MFD_88PM860X=y
CONFIG_MFD_MAX14577=y
CONFIG_MFD_MAX77693=y
CONFIG_MFD_MAX77843=y
# CONFIG_MFD_MAX8907 is not set
CONFIG_MFD_MAX8925=y
CONFIG_MFD_MAX8997=y
CONFIG_MFD_MAX8998=y
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
CONFIG_EZX_PCAP=y
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_UCB1400_CORE is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
CONFIG_MFD_RC5T583=y
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
CONFIG_MFD_LP8788=y
# CONFIG_MFD_TI_LMU is not set
CONFIG_MFD_PALMAS=y
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
CONFIG_MFD_TPS65090=y
# CONFIG_MFD_TI_LP873X is not set
CONFIG_MFD_TPS6586X=y
CONFIG_MFD_TPS65910=y
CONFIG_MFD_TPS65912=y
CONFIG_MFD_TPS65912_I2C=y
CONFIG_MFD_TPS65912_SPI=y
CONFIG_TWL4030_CORE=y
CONFIG_MFD_TWL4030_AUDIO=y
CONFIG_TWL6040_CORE=y
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
CONFIG_MFD_WM8400=y
CONFIG_MFD_WM831X=y
CONFIG_MFD_WM831X_I2C=y
CONFIG_MFD_WM831X_SPI=y
CONFIG_MFD_WM8350=y
CONFIG_MFD_WM8350_I2C=y
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_RAVE_SP_CORE is not set
# CONFIG_MFD_INTEL_M10_BMC is not set

# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_88PG86X is not set
# CONFIG_REGULATOR_88PM8607 is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_AAT2870 is not set
# CONFIG_REGULATOR_AS3711 is not set
# CONFIG_REGULATOR_DA903X is not set
# CONFIG_REGULATOR_DA9052 is not set
# CONFIG_REGULATOR_DA9055 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LP8788 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX14577 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8925 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8997 is not set
# CONFIG_REGULATOR_MAX8998 is not set
# CONFIG_REGULATOR_MAX77693 is not set
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PALMAS is not set
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PCAP is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_PWM is not set
# CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY is not set # CONFIG_REGULATOR_RC5T583 is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65090 is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_REGULATOR_TPS6586X is not set
# CONFIG_REGULATOR_TPS65910 is not set
# CONFIG_REGULATOR_TPS65912 is not set
# CONFIG_REGULATOR_TWL4030 is not set
# CONFIG_REGULATOR_WM831X is not set
# CONFIG_REGULATOR_WM8350 is not set
# CONFIG_REGULATOR_WM8400 is not set
# CONFIG_RC_CORE is not set
CONFIG_CEC_CORE=m

#
# CEC support
#
CONFIG_MEDIA_CEC_SUPPORT=y
# CONFIG_CEC_CH7322 is not set
# CONFIG_CEC_GPIO is not set
# CONFIG_CEC_SECO is not set
# CONFIG_USB_PULSE8_CEC is not set
# CONFIG_USB_RAINSHADOW_CEC is not set

# end of CEC support

CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
CONFIG_MEDIA_SDR_SUPPORT=y
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set

# end of Media device types

CONFIG_VIDEO_DEV=m
CONFIG_MEDIA_CONTROLLER=y
CONFIG_DVB_CORE=m

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set

# end of Video4Linux options

#
# Media controller options
#
CONFIG_MEDIA_CONTROLLER_DVB=y

# end of Media controller options

#
# Digital TV options
#
# CONFIG_DVB_MMAP is not set
CONFIG_DVB_NET=y
CONFIG_DVB_MAX_ADAPTERS=8
CONFIG_DVB_DYNAMIC_MINORS=y
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set
# CONFIG_DVB_ULE_DEBUG is not set

# end of Digital TV options

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers' #
CONFIG_MEDIA_USB_SUPPORT=y

#
# Webcam devices
#
CONFIG_USB_VIDEO_CLASS=m
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
# CONFIG_USB_GSPCA is not set
# CONFIG_USB_PWC is not set
# CONFIG_VIDEO_CPIA2 is not set
# CONFIG_USB_ZR364XX is not set
# CONFIG_USB_STKWEBCAM is not set
# CONFIG_USB_S2255 is not set
# CONFIG_VIDEO_USBTV is not set

#
# Analog TV USB devices
#
# CONFIG_VIDEO_PVRUSB2 is not set
# CONFIG_VIDEO_HDPVR is not set
# CONFIG_VIDEO_STK1160_COMMON is not set
# CONFIG_VIDEO_GO7007 is not set

#
# Analog/digital TV USB devices
#
# CONFIG_VIDEO_AU0828 is not set
# CONFIG_VIDEO_CX231XX is not set

#
# Digital TV USB devices
#
# CONFIG_DVB_USB_V2 is not set
# CONFIG_DVB_TTUSB_BUDGET is not set
# CONFIG_DVB_TTUSB_DEC is not set
# CONFIG_SMS_USB_DRV is not set
# CONFIG_DVB_B2C2_FLEXCOP_USB is not set
# CONFIG_DVB_AS102 is not set

#
# Webcam, TV (analog/digital) USB devices
#
# CONFIG_VIDEO_EM28XX is not set

#
# Software defined radio USB devices
#
# CONFIG_USB_AIRSPY is not set
# CONFIG_USB_HACKRF is not set
# CONFIG_USB_MSI2500 is not set
CONFIG_MEDIA_PCI_SUPPORT=y

#
# Media capture support
#
# CONFIG_VIDEO_SOLO6X10 is not set
# CONFIG_VIDEO_TW5864 is not set
# CONFIG_VIDEO_TW68 is not set
# CONFIG_VIDEO_TW686X is not set

#
# Media capture/analog TV support
#
# CONFIG_VIDEO_HEXIUM_GEMINI is not set
# CONFIG_VIDEO_HEXIUM_ORION is not set
# CONFIG_VIDEO_MXB is not set
# CONFIG_VIDEO_DT3155 is not set

#
# Media capture/analog/hybrid TV support
#
# CONFIG_VIDEO_CX25821 is not set
# CONFIG_VIDEO_SAA7134 is not set
# CONFIG_VIDEO_SAA7164 is not set

#
# Media digital TV PCI Adapters
#
# CONFIG_DVB_BUDGET_CORE is not set
# CONFIG_DVB_B2C2_FLEXCOP_PCI is not set
# CONFIG_DVB_PLUTO2 is not set
# CONFIG_DVB_PT1 is not set
# CONFIG_DVB_PT3 is not set
# CONFIG_DVB_NGENE is not set
# CONFIG_DVB_DDBRIDGE is not set
# CONFIG_DVB_NETUP_UNIDVB is not set
# CONFIG_VIDEO_IPU3_CIO2 is not set
CONFIG_RADIO_ADAPTERS=y
# CONFIG_RADIO_SI470X is not set
# CONFIG_RADIO_SI4713 is not set
# CONFIG_USB_MR800 is not set
# CONFIG_USB_DSBR is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_SHARK is not set
# CONFIG_RADIO_SHARK2 is not set
# CONFIG_USB_KEENE is not set
# CONFIG_USB_RAREMONO is not set
# CONFIG_USB_MA901 is not set
# CONFIG_RADIO_TEA5764 is not set
# CONFIG_RADIO_SAA7706H is not set
# CONFIG_RADIO_TEF6862 is not set
# CONFIG_RADIO_WL1273 is not set
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_V4L2=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_VMALLOC=m

# end of Media drivers

#
# Media ancillary drivers
#
CONFIG_MEDIA_ATTACH=y

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_TDA7432 is not set
# CONFIG_VIDEO_TDA9840 is not set
# CONFIG_VIDEO_TDA1997X is not set
# CONFIG_VIDEO_TEA6415C is not set
# CONFIG_VIDEO_TEA6420 is not set
# CONFIG_VIDEO_MSP3400 is not set
# CONFIG_VIDEO_CS3308 is not set
# CONFIG_VIDEO_CS5345 is not set
# CONFIG_VIDEO_CS53L32A is not set
# CONFIG_VIDEO_TLV320AIC23B is not set
# CONFIG_VIDEO_UDA1342 is not set
# CONFIG_VIDEO_WM8775 is not set
# CONFIG_VIDEO_WM8739 is not set
# CONFIG_VIDEO_VP27SMPX is not set
# CONFIG_VIDEO_SONY_BTF_MPX is not set

# end of Audio decoders, processors and mixers

#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set

# end of RDS decoders

#
# Video decoders
#
# CONFIG_VIDEO_ADV7180 is not set
# CONFIG_VIDEO_ADV7183 is not set
# CONFIG_VIDEO_ADV7604 is not set
# CONFIG_VIDEO_ADV7842 is not set
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_KS0127 is not set
# CONFIG_VIDEO_ML86V7667 is not set
# CONFIG_VIDEO_SAA7110 is not set
# CONFIG_VIDEO_SAA711X is not set
# CONFIG_VIDEO_TC358743 is not set
# CONFIG_VIDEO_TVP514X is not set
# CONFIG_VIDEO_TVP5150 is not set
# CONFIG_VIDEO_TVP7002 is not set
# CONFIG_VIDEO_TW2804 is not set
# CONFIG_VIDEO_TW9903 is not set
# CONFIG_VIDEO_TW9906 is not set
# CONFIG_VIDEO_TW9910 is not set
# CONFIG_VIDEO_VPX3220 is not set

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
# CONFIG_VIDEO_CX25840 is not set

# end of Video decoders

#
# Video encoders
#
# CONFIG_VIDEO_SAA7127 is not set
# CONFIG_VIDEO_SAA7185 is not set
# CONFIG_VIDEO_ADV7170 is not set
# CONFIG_VIDEO_ADV7175 is not set
# CONFIG_VIDEO_ADV7343 is not set
# CONFIG_VIDEO_ADV7393 is not set
# CONFIG_VIDEO_ADV7511 is not set
# CONFIG_VIDEO_AD9389B is not set
# CONFIG_VIDEO_AK881X is not set
# CONFIG_VIDEO_THS8200 is not set

# end of Video encoders

#
# Video improvement chips
#
# CONFIG_VIDEO_UPD64031A is not set
# CONFIG_VIDEO_UPD64083 is not set

# end of Video improvement chips

#
# Audio/Video compression chips
#
# CONFIG_VIDEO_SAA6752HS is not set

# end of Audio/Video compression chips

#
# SDR tuner chips
#
# CONFIG_SDR_MAX2175 is not set

# end of SDR tuner chips

#
# Miscellaneous helper chips
#
# CONFIG_VIDEO_THS7303 is not set
# CONFIG_VIDEO_M52790 is not set
# CONFIG_VIDEO_I2C is not set
# CONFIG_VIDEO_ST_MIPID02 is not set

# end of Miscellaneous helper chips

#
# Camera sensor devices
#
# CONFIG_VIDEO_HI556 is not set
# CONFIG_VIDEO_HI846 is not set
# CONFIG_VIDEO_IMX208 is not set
# CONFIG_VIDEO_IMX214 is not set
# CONFIG_VIDEO_IMX219 is not set
# CONFIG_VIDEO_IMX258 is not set
# CONFIG_VIDEO_IMX274 is not set
# CONFIG_VIDEO_IMX290 is not set
# CONFIG_VIDEO_IMX319 is not set
# CONFIG_VIDEO_IMX355 is not set
# CONFIG_VIDEO_OV02A10 is not set
# CONFIG_VIDEO_OV2640 is not set
# CONFIG_VIDEO_OV2659 is not set
# CONFIG_VIDEO_OV2680 is not set
# CONFIG_VIDEO_OV2685 is not set
# CONFIG_VIDEO_OV2740 is not set
# CONFIG_VIDEO_OV5647 is not set
# CONFIG_VIDEO_OV5648 is not set
# CONFIG_VIDEO_OV6650 is not set
# CONFIG_VIDEO_OV5670 is not set
# CONFIG_VIDEO_OV5675 is not set
# CONFIG_VIDEO_OV5695 is not set
# CONFIG_VIDEO_OV7251 is not set
# CONFIG_VIDEO_OV772X is not set
# CONFIG_VIDEO_OV7640 is not set
# CONFIG_VIDEO_OV7670 is not set
# CONFIG_VIDEO_OV7740 is not set
# CONFIG_VIDEO_OV8856 is not set
# CONFIG_VIDEO_OV8865 is not set
# CONFIG_VIDEO_OV9640 is not set
# CONFIG_VIDEO_OV9650 is not set
# CONFIG_VIDEO_OV9734 is not set
# CONFIG_VIDEO_OV13858 is not set
# CONFIG_VIDEO_OV13B10 is not set
# CONFIG_VIDEO_VS6624 is not set
# CONFIG_VIDEO_MT9M001 is not set
# CONFIG_VIDEO_MT9M032 is not set
# CONFIG_VIDEO_MT9M111 is not set
# CONFIG_VIDEO_MT9P031 is not set
# CONFIG_VIDEO_MT9T001 is not set
# CONFIG_VIDEO_MT9T112 is not set
# CONFIG_VIDEO_MT9V011 is not set
# CONFIG_VIDEO_MT9V032 is not set
# CONFIG_VIDEO_MT9V111 is not set
# CONFIG_VIDEO_SR030PC30 is not set
# CONFIG_VIDEO_NOON010PC30 is not set
# CONFIG_VIDEO_M5MOLS is not set
# CONFIG_VIDEO_RDACM20 is not set
# CONFIG_VIDEO_RDACM21 is not set
# CONFIG_VIDEO_RJ54N1 is not set
# CONFIG_VIDEO_S5K6AA is not set
# CONFIG_VIDEO_S5K6A3 is not set
# CONFIG_VIDEO_S5K4ECGX is not set
# CONFIG_VIDEO_S5K5BAF is not set
# CONFIG_VIDEO_CCS is not set
# CONFIG_VIDEO_ET8EK8 is not set
# CONFIG_VIDEO_S5C73M3 is not set

# end of Camera sensor devices

#
# Lens drivers
#
# CONFIG_VIDEO_AD5820 is not set
# CONFIG_VIDEO_AK7375 is not set
# CONFIG_VIDEO_DW9714 is not set
# CONFIG_VIDEO_DW9768 is not set
# CONFIG_VIDEO_DW9807_VCM is not set

# end of Lens drivers

#
# Flash devices
#
# CONFIG_VIDEO_ADP1653 is not set
# CONFIG_VIDEO_LM3560 is not set
# CONFIG_VIDEO_LM3646 is not set

# end of Flash devices

#
# SPI helper chips
#
# CONFIG_VIDEO_GS1662 is not set

# end of SPI helper chips

#
# Media SPI Adapters
#
# CONFIG_CXD2880_SPI_DRV is not set

# end of Media SPI Adapters

CONFIG_MEDIA_TUNER=m

#
# Customize TV tuners
#
CONFIG_MEDIA_TUNER_SIMPLE=m
# CONFIG_MEDIA_TUNER_TDA18250 is not set
CONFIG_MEDIA_TUNER_TDA8290=m
CONFIG_MEDIA_TUNER_TDA827X=m
CONFIG_MEDIA_TUNER_TDA18271=m
CONFIG_MEDIA_TUNER_TDA9887=m
CONFIG_MEDIA_TUNER_TEA5761=m
CONFIG_MEDIA_TUNER_TEA5767=m
# CONFIG_MEDIA_TUNER_MSI001 is not set
CONFIG_MEDIA_TUNER_MT20XX=m
# CONFIG_MEDIA_TUNER_MT2060 is not set
# CONFIG_MEDIA_TUNER_MT2063 is not set
# CONFIG_MEDIA_TUNER_MT2266 is not set
# CONFIG_MEDIA_TUNER_MT2131 is not set
# CONFIG_MEDIA_TUNER_QT1010 is not set
CONFIG_MEDIA_TUNER_XC2028=m
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_XC4000=m
# CONFIG_MEDIA_TUNER_MXL5005S is not set
# CONFIG_MEDIA_TUNER_MXL5007T is not set
CONFIG_MEDIA_TUNER_MC44S803=m
# CONFIG_MEDIA_TUNER_MAX2165 is not set
# CONFIG_MEDIA_TUNER_TDA18218 is not set
# CONFIG_MEDIA_TUNER_FC0011 is not set
# CONFIG_MEDIA_TUNER_FC0012 is not set
# CONFIG_MEDIA_TUNER_FC0013 is not set
# CONFIG_MEDIA_TUNER_TDA18212 is not set
# CONFIG_MEDIA_TUNER_E4000 is not set
# CONFIG_MEDIA_TUNER_FC2580 is not set
# CONFIG_MEDIA_TUNER_M88RS6000T is not set
# CONFIG_MEDIA_TUNER_TUA9001 is not set
# CONFIG_MEDIA_TUNER_SI2157 is not set
# CONFIG_MEDIA_TUNER_IT913X is not set
# CONFIG_MEDIA_TUNER_R820T is not set
# CONFIG_MEDIA_TUNER_MXL301RF is not set
# CONFIG_MEDIA_TUNER_QM1D1C0042 is not set
# CONFIG_MEDIA_TUNER_QM1D1B0004 is not set

# end of Customize TV tuners

#
# Customise DVB Frontends
#

#
# Multistandard (satellite) frontends
#
# CONFIG_DVB_STB0899 is not set
# CONFIG_DVB_STB6100 is not set
# CONFIG_DVB_STV090x is not set
# CONFIG_DVB_STV0910 is not set
# CONFIG_DVB_STV6110x is not set
# CONFIG_DVB_STV6111 is not set
# CONFIG_DVB_MXL5XX is not set
# CONFIG_DVB_M88DS3103 is not set

#
# Multistandard (cable + terrestrial) frontends
#
# CONFIG_DVB_DRXK is not set
# CONFIG_DVB_TDA18271C2DD is not set
# CONFIG_DVB_SI2165 is not set
# CONFIG_DVB_MN88472 is not set
# CONFIG_DVB_MN88473 is not set

#
# DVB-S (satellite) frontends
#
# CONFIG_DVB_CX24110 is not set
# CONFIG_DVB_CX24123 is not set
# CONFIG_DVB_MT312 is not set
# CONFIG_DVB_ZL10036 is not set
# CONFIG_DVB_ZL10039 is not set
# CONFIG_DVB_S5H1420 is not set
# CONFIG_DVB_STV0288 is not set
# CONFIG_DVB_STB6000 is not set
# CONFIG_DVB_STV0299 is not set
# CONFIG_DVB_STV6110 is not set
# CONFIG_DVB_STV0900 is not set
# CONFIG_DVB_TDA8083 is not set
# CONFIG_DVB_TDA10086 is not set
# CONFIG_DVB_TDA8261 is not set
# CONFIG_DVB_VES1X93 is not set
# CONFIG_DVB_TUNER_ITD1000 is not set
# CONFIG_DVB_TUNER_CX24113 is not set
# CONFIG_DVB_TDA826X is not set
# CONFIG_DVB_TUA6100 is not set
# CONFIG_DVB_CX24116 is not set
# CONFIG_DVB_CX24117 is not set
# CONFIG_DVB_CX24120 is not set
# CONFIG_DVB_SI21XX is not set
# CONFIG_DVB_TS2020 is not set
# CONFIG_DVB_DS3000 is not set
# CONFIG_DVB_MB86A16 is not set
# CONFIG_DVB_TDA10071 is not set

#
# DVB-T (terrestrial) frontends
#
# CONFIG_DVB_SP887X is not set
# CONFIG_DVB_CX22700 is not set
# CONFIG_DVB_CX22702 is not set
# CONFIG_DVB_S5H1432 is not set
# CONFIG_DVB_DRXD is not set
# CONFIG_DVB_L64781 is not set
# CONFIG_DVB_TDA1004X is not set
# CONFIG_DVB_NXT6000 is not set
# CONFIG_DVB_MT352 is not set
# CONFIG_DVB_ZL10353 is not set
# CONFIG_DVB_DIB3000MB is not set
# CONFIG_DVB_DIB3000MC is not set
# CONFIG_DVB_DIB7000M is not set
# CONFIG_DVB_DIB7000P is not set
# CONFIG_DVB_DIB9000 is not set
# CONFIG_DVB_TDA10048 is not set
# CONFIG_DVB_AF9013 is not set
# CONFIG_DVB_EC100 is not set
# CONFIG_DVB_STV0367 is not set
# CONFIG_DVB_CXD2820R is not set
# CONFIG_DVB_CXD2841ER is not set
# CONFIG_DVB_RTL2830 is not set
# CONFIG_DVB_RTL2832 is not set
# CONFIG_DVB_RTL2832_SDR is not set
# CONFIG_DVB_SI2168 is not set
# CONFIG_DVB_ZD1301_DEMOD is not set
# CONFIG_DVB_CXD2880 is not set

#
# DVB-C (cable) frontends
#
# CONFIG_DVB_VES1820 is not set
# CONFIG_DVB_TDA10021 is not set
# CONFIG_DVB_TDA10023 is not set
# CONFIG_DVB_STV0297 is not set

#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends #
# CONFIG_DVB_NXT200X is not set
# CONFIG_DVB_OR51211 is not set
# CONFIG_DVB_OR51132 is not set
# CONFIG_DVB_BCM3510 is not set
# CONFIG_DVB_LGDT330X is not set
# CONFIG_DVB_LGDT3305 is not set
# CONFIG_DVB_LGDT3306A is not set
# CONFIG_DVB_LG2160 is not set
# CONFIG_DVB_S5H1409 is not set
# CONFIG_DVB_AU8522_DTV is not set
# CONFIG_DVB_AU8522_V4L is not set
# CONFIG_DVB_S5H1411 is not set
# CONFIG_DVB_MXL692 is not set

#
# ISDB-T (terrestrial) frontends
#
# CONFIG_DVB_S921 is not set
# CONFIG_DVB_DIB8000 is not set
# CONFIG_DVB_MB86A20S is not set

#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends #
# CONFIG_DVB_TC90522 is not set
# CONFIG_DVB_MN88443X is not set

#
# Digital terrestrial only tuners/PLL
#
# CONFIG_DVB_PLL is not set
# CONFIG_DVB_TUNER_DIB0070 is not set
# CONFIG_DVB_TUNER_DIB0090 is not set

#
# SEC control devices for DVB-S
#
# CONFIG_DVB_DRX39XYJ is not set
# CONFIG_DVB_LNBH25 is not set
# CONFIG_DVB_LNBH29 is not set
# CONFIG_DVB_LNBP21 is not set
# CONFIG_DVB_LNBP22 is not set
# CONFIG_DVB_ISL6405 is not set
# CONFIG_DVB_ISL6421 is not set
# CONFIG_DVB_ISL6423 is not set
# CONFIG_DVB_A8293 is not set
# CONFIG_DVB_LGS8GL5 is not set
# CONFIG_DVB_LGS8GXX is not set
# CONFIG_DVB_ATBM8830 is not set
# CONFIG_DVB_TDA665x is not set
# CONFIG_DVB_IX2505V is not set
# CONFIG_DVB_M88RS2000 is not set
# CONFIG_DVB_AF9033 is not set
# CONFIG_DVB_HORUS3A is not set
# CONFIG_DVB_ASCOT2E is not set
# CONFIG_DVB_HELENE is not set

#
# Common Interface (EN50221) controller drivers
#
# CONFIG_DVB_CXD2099 is not set
# CONFIG_DVB_SP2 is not set

# end of Customise DVB Frontends
# end of Media ancillary drivers

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set CONFIG_AGP_VIA=y
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y CONFIG_VGA_ARB_MAX_GPUS=16 CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y CONFIG_DRM_DP_AUX_CHARDEV=y
# CONFIG_DRM_DEBUG_SELFTEST is not set CONFIG_DRM_KMS_HELPER=m
# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set # CONFIG_DRM_DEBUG_MODESET_LOCK is not set CONFIG_DRM_FBDEV_EMULATION=y CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM is not set CONFIG_DRM_LOAD_EDID_FIRMWARE=y CONFIG_DRM_DP_CEC=y
CONFIG_DRM_TTM=m
CONFIG_DRM_VRAM_HELPER=m CONFIG_DRM_TTM_HELPER=m CONFIG_DRM_GEM_SHMEM_HELPER=y

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set

# end of I2C encoder or helper chips

#
# ARM devices
#

# end of ARM devices

# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
CONFIG_DRM_NOUVEAU=m
# CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT is not set
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
# CONFIG_NOUVEAU_DEBUG_MMU is not set
# CONFIG_NOUVEAU_DEBUG_PUSH is not set
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_NOUVEAU_SVM is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
CONFIG_DRM_I915_GVT=y
# CONFIG_DRM_I915_PXP is not set

# drm/i915 Debugging
#
# CONFIG_DRM_I915_WERROR is not set
# CONFIG_DRM_I915_DEBUG is not set
# CONFIG_DRM_I915_DEBUG_MMIO is not set
# CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS is not set
# CONFIG_DRM_I915_SW_FENCE_CHECK_DAG is not set
# CONFIG_DRM_I915_DEBUG_GUC is not set
# CONFIG_DRM_I915_SELFTEST is not set
# CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS is not set
# CONFIG_DRM_I915_DEBUG_VBLANK_EVADE is not set
# CONFIG_DRM_I915_DEBUG_RUNTIME_PM is not set
# end of drm/i915 Debugging

# drm/i915 Profile Guided Optimisation
#
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# end of drm/i915 Profile Guided Optimisation

# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_QXL is not set
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set # CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set

# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set

# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_GM12U320 is not set
CONFIG_DRM_SIMPLEDRM=m
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
CONFIG_DRM_VBOXVIDEO=m
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
CONFIG_FB_ASILIANT=y
CONFIG_FB_IMSTT=y
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_INTEL is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_FB_SIMPLE=m
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set

# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_PWM is not set
# CONFIG_BACKLIGHT_DA903X is not set
# CONFIG_BACKLIGHT_DA9052 is not set
# CONFIG_BACKLIGHT_MAX8925 is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_WM831X is not set
# CONFIG_BACKLIGHT_ADP5520 is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_88PM860X is not set
# CONFIG_BACKLIGHT_AAT2870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_LP8788 is not set
# CONFIG_BACKLIGHT_PANDORA is not set
# CONFIG_BACKLIGHT_AS3711 is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set

# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y

# end of Console display driver support

# CONFIG_LOGO is not set

# end of Graphics support

CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_PCM_ELD=y
CONFIG_SND_HWDEP=m
CONFIG_SND_SEQ_DEVICE=m
CONFIG_SND_COMPRESS_OFFLOAD=m
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
CONFIG_SND_OSSEMUL=y
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_HRTIMER is not set
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_CTL_LED=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
# CONFIG_SND_SEQUENCER_OSS is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
CONFIG_SND_DUMMY=m
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
# CONFIG_SND_AC97_POWER_SAVE is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set

#
# HD-Audio
#
CONFIG_SND_HDA=m
CONFIG_SND_HDA_GENERIC_LEDS=y
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=0
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_CODEC_REALTEK=m
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
CONFIG_SND_HDA_CODEC_HDMI=m
# CONFIG_SND_HDA_CODEC_CIRRUS is not set
# CONFIG_SND_HDA_CODEC_CS8409 is not set
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CA0110 is not set
# CONFIG_SND_HDA_CODEC_CA0132 is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=1
CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM=y

# end of HD-Audio

CONFIG_SND_HDA_CORE=m
CONFIG_SND_HDA_DSP_LOADER=y
CONFIG_SND_HDA_COMPONENT=y
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_EXT_CORE=m
CONFIG_SND_HDA_PREALLOC_SIZE=0
CONFIG_SND_INTEL_NHLT=y
CONFIG_SND_INTEL_DSP_CONFIG=m
CONFIG_SND_INTEL_SOUNDWIRE_ACPI=m
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_US122L is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
# CONFIG_SND_BCD2000 is not set
# CONFIG_SND_USB_POD is not set
# CONFIG_SND_USB_PODHD is not set
# CONFIG_SND_USB_TONEPORT is not set
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_SOC=m
CONFIG_SND_SOC_AC97_BUS=y
CONFIG_SND_SOC_COMPRESS=y
CONFIG_SND_SOC_TOPOLOGY=y
CONFIG_SND_SOC_ACPI=m
# CONFIG_SND_SOC_ADI is not set
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_SOC_AMD_ACP3x is not set
# CONFIG_SND_SOC_AMD_RENOIR is not set
# CONFIG_SND_SOC_AMD_ACP5x is not set
# CONFIG_SND_SOC_AMD_ACP6x is not set
# CONFIG_SND_SOC_AMD_ACP_COMMON is not set
# CONFIG_SND_ATMEL_SOC is not set
# CONFIG_SND_BCM63XX_I2S_WHISTLER is not set
# CONFIG_SND_DESIGNWARE_I2S is not set

#
# SoC Audio for Freescale CPUs
#

#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_AUDMIX is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_FSL_MICFIL is not set
# CONFIG_SND_SOC_FSL_XCVR is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set

# end of SoC Audio for Freescale CPUs

# CONFIG_SND_I2S_HI6210_I2S is not set CONFIG_SND_SOC_IMG=y
# CONFIG_SND_SOC_IMG_I2S_IN is not set
# CONFIG_SND_SOC_IMG_I2S_OUT is not set
# CONFIG_SND_SOC_IMG_PARALLEL_OUT is not set # CONFIG_SND_SOC_IMG_SPDIF_IN is not set
# CONFIG_SND_SOC_IMG_SPDIF_OUT is not set
# CONFIG_SND_SOC_IMG_PISTACHIO_INTERNAL_DAC is not set CONFIG_SND_SOC_INTEL_SST_TOPLEVEL=y CONFIG_SND_SOC_INTEL_SST=m CONFIG_SND_SOC_INTEL_CATPT=m
# CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_PCI is not set # CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI is not set CONFIG_SND_SOC_INTEL_SKYLAKE=m CONFIG_SND_SOC_INTEL_SKL=m CONFIG_SND_SOC_INTEL_APL=m CONFIG_SND_SOC_INTEL_KBL=m CONFIG_SND_SOC_INTEL_GLK=m CONFIG_SND_SOC_INTEL_CNL=m CONFIG_SND_SOC_INTEL_CFL=m CONFIG_SND_SOC_INTEL_CML_H=m CONFIG_SND_SOC_INTEL_CML_LP=m CONFIG_SND_SOC_INTEL_SKYLAKE_FAMILY=m CONFIG_SND_SOC_INTEL_SKYLAKE_SSP_CLK=m CONFIG_SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC=y CONFIG_SND_SOC_INTEL_SKYLAKE_COMMON=m CONFIG_SND_SOC_ACPI_INTEL_MATCH=m CONFIG_SND_SOC_INTEL_MACH=y CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES=y CONFIG_SND_SOC_INTEL_HDA_DSP_COMMON=m CONFIG_SND_SOC_INTEL_SOF_MAXIM_COMMON=m CONFIG_SND_SOC_INTEL_HASWELL_MACH=m CONFIG_SND_SOC_INTEL_BDW_RT5650_MACH=m CONFIG_SND_SOC_INTEL_BDW_RT5677_MACH=m CONFIG_SND_SOC_INTEL_BROADWELL_MACH=m CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH=m CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH=m CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH=m CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH=m CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH=m CONFIG_SND_SOC_INTEL_CHT_BSW_NAU8824_MACH=m CONFIG_SND_SOC_INTEL_BYT_CHT_CX2072X_MACH=m CONFIG_SND_SOC_INTEL_BYT_CHT_DA7213_MACH=m CONFIG_SND_SOC_INTEL_BYT_CHT_ES8316_MACH=m CONFIG_SND_SOC_INTEL_SKL_RT286_MACH=m CONFIG_SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH=m CONFIG_SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_DA7219_MAX98357A_GENERIC=m CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON=m CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_BXT_RT298_MACH=m CONFIG_SND_SOC_INTEL_SOF_WM8804_MACH=m CONFIG_SND_SOC_INTEL_KBL_RT5663_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_KBL_RT5660_MACH=m CONFIG_SND_SOC_INTEL_GLK_DA7219_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH=m CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH=m CONFIG_SND_SOC_INTEL_SOF_CS42L42_MACH=m CONFIG_SND_SOC_INTEL_SOF_PCM512x_MACH=m CONFIG_SND_SOC_INTEL_SOF_ES8336_MACH=m CONFIG_SND_SOC_INTEL_CML_LP_DA7219_MAX98357A_MACH=m CONFIG_SND_SOC_INTEL_SOF_CML_RT1011_RT5682_MACH=m CONFIG_SND_SOC_INTEL_SOF_DA7219_MAX98373_MACH=m CONFIG_SND_SOC_INTEL_EHL_RT5660_MACH=m CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH=m
# CONFIG_SND_SOC_MTK_BTCVSD is not set CONFIG_SND_SOC_SOF_TOPLEVEL=y CONFIG_SND_SOC_SOF_PCI_DEV=m CONFIG_SND_SOC_SOF_PCI=m CONFIG_SND_SOC_SOF_ACPI=m CONFIG_SND_SOC_SOF_ACPI_DEV=m CONFIG_SND_SOC_SOF_DEBUG_PROBES=y
# CONFIG_SND_SOC_SOF_DEVELOPER_SUPPORT is not set CONFIG_SND_SOC_SOF=m CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE=y CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL=y CONFIG_SND_SOC_SOF_INTEL_HIFI_EP_IPC=m CONFIG_SND_SOC_SOF_INTEL_ATOM_HIFI_EP=m CONFIG_SND_SOC_SOF_INTEL_COMMON=m CONFIG_SND_SOC_SOF_BAYTRAIL=m CONFIG_SND_SOC_SOF_BROADWELL=m CONFIG_SND_SOC_SOF_MERRIFIELD=m CONFIG_SND_SOC_SOF_INTEL_APL=m CONFIG_SND_SOC_SOF_APOLLOLAKE=m CONFIG_SND_SOC_SOF_GEMINILAKE=m CONFIG_SND_SOC_SOF_INTEL_CNL=m CONFIG_SND_SOC_SOF_CANNONLAKE=m CONFIG_SND_SOC_SOF_COFFEELAKE=m CONFIG_SND_SOC_SOF_COMETLAKE=m CONFIG_SND_SOC_SOF_INTEL_ICL=m CONFIG_SND_SOC_SOF_ICELAKE=m CONFIG_SND_SOC_SOF_JASPERLAKE=m CONFIG_SND_SOC_SOF_INTEL_TGL=m CONFIG_SND_SOC_SOF_TIGERLAKE=m CONFIG_SND_SOC_SOF_ELKHARTLAKE=m CONFIG_SND_SOC_SOF_ALDERLAKE=m CONFIG_SND_SOC_SOF_HDA_COMMON=m CONFIG_SND_SOC_SOF_HDA_LINK=y CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC=y CONFIG_SND_SOC_SOF_HDA_PROBES=y CONFIG_SND_SOC_SOF_HDA_LINK_BASELINE=m CONFIG_SND_SOC_SOF_HDA=m CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE_LINK_BASELINE=m CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE=m CONFIG_SND_SOC_SOF_XTENSA=m

#
# STMicroelectronics STM32 SOC audio support
#

# end of STMicroelectronics STM32 SOC audio support

# CONFIG_SND_SOC_XILINX_I2S is not set
# CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER is not set # CONFIG_SND_SOC_XILINX_SPDIF is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set CONFIG_SND_SOC_I2C_AND_SPI=m

#
# CODEC drivers
#
CONFIG_SND_SOC_AC97_CODEC=m
# CONFIG_SND_SOC_ADAU1372_I2C is not set
# CONFIG_SND_SOC_ADAU1372_SPI is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_ADAU1761_I2C is not set
# CONFIG_SND_SOC_ADAU1761_SPI is not set
# CONFIG_SND_SOC_ADAU7002 is not set
# CONFIG_SND_SOC_ADAU7118_HW is not set
# CONFIG_SND_SOC_ADAU7118_I2C is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4118 is not set
# CONFIG_SND_SOC_AK4458 is not set
# CONFIG_SND_SOC_AK4554 is not set
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_AK5558 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_BD28623 is not set
# CONFIG_SND_SOC_BT_SCO is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS35L33 is not set
# CONFIG_SND_SOC_CS35L34 is not set
# CONFIG_SND_SOC_CS35L35 is not set
# CONFIG_SND_SOC_CS35L36 is not set
# CONFIG_SND_SOC_CS35L41_SPI is not set
# CONFIG_SND_SOC_CS35L41_I2C is not set
CONFIG_SND_SOC_CS42L42=m
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS4234 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS43130 is not set
# CONFIG_SND_SOC_CS4341 is not set
# CONFIG_SND_SOC_CS4349 is not set
# CONFIG_SND_SOC_CS53L30 is not set
CONFIG_SND_SOC_CX2072X=m
CONFIG_SND_SOC_DA7213=m
CONFIG_SND_SOC_DA7219=m
CONFIG_SND_SOC_DMIC=m
# CONFIG_SND_SOC_ES7134 is not set
# CONFIG_SND_SOC_ES7241 is not set
CONFIG_SND_SOC_ES8316=m
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_ES8328_SPI is not set
# CONFIG_SND_SOC_GTM601 is not set
CONFIG_SND_SOC_HDAC_HDMI=m
CONFIG_SND_SOC_HDAC_HDA=m
# CONFIG_SND_SOC_ICS43432 is not set
# CONFIG_SND_SOC_INNO_RK3036 is not set
# CONFIG_SND_SOC_MAX98088 is not set
CONFIG_SND_SOC_MAX98090=m
CONFIG_SND_SOC_MAX98357A=m
# CONFIG_SND_SOC_MAX98504 is not set
# CONFIG_SND_SOC_MAX9867 is not set
CONFIG_SND_SOC_MAX98927=m
# CONFIG_SND_SOC_MAX98520 is not set
CONFIG_SND_SOC_MAX98373=m
CONFIG_SND_SOC_MAX98373_I2C=m
CONFIG_SND_SOC_MAX98373_SDW=m
CONFIG_SND_SOC_MAX98390=m
# CONFIG_SND_SOC_MAX9860 is not set
# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM1789_I2C is not set
# CONFIG_SND_SOC_PCM179X_I2C is not set
# CONFIG_SND_SOC_PCM179X_SPI is not set
# CONFIG_SND_SOC_PCM186X_I2C is not set
# CONFIG_SND_SOC_PCM186X_SPI is not set
# CONFIG_SND_SOC_PCM3060_I2C is not set
# CONFIG_SND_SOC_PCM3060_SPI is not set
# CONFIG_SND_SOC_PCM3168A_I2C is not set
# CONFIG_SND_SOC_PCM3168A_SPI is not set
# CONFIG_SND_SOC_PCM5102A is not set
CONFIG_SND_SOC_PCM512x=m
CONFIG_SND_SOC_PCM512x_I2C=m
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_RK3328 is not set
CONFIG_SND_SOC_RL6231=m
CONFIG_SND_SOC_RL6347A=m
CONFIG_SND_SOC_RT286=m
CONFIG_SND_SOC_RT298=m
CONFIG_SND_SOC_RT1011=m
CONFIG_SND_SOC_RT1015=m
CONFIG_SND_SOC_RT1015P=m
CONFIG_SND_SOC_RT1308=m
CONFIG_SND_SOC_RT1308_SDW=m
CONFIG_SND_SOC_RT1316_SDW=m
CONFIG_SND_SOC_RT5514=m
CONFIG_SND_SOC_RT5514_SPI=m
# CONFIG_SND_SOC_RT5616 is not set
# CONFIG_SND_SOC_RT5631 is not set
CONFIG_SND_SOC_RT5640=m
CONFIG_SND_SOC_RT5645=m
CONFIG_SND_SOC_RT5651=m
# CONFIG_SND_SOC_RT5659 is not set
CONFIG_SND_SOC_RT5660=m
CONFIG_SND_SOC_RT5663=m
CONFIG_SND_SOC_RT5670=m
CONFIG_SND_SOC_RT5677=m
CONFIG_SND_SOC_RT5677_SPI=m
CONFIG_SND_SOC_RT5682=m
CONFIG_SND_SOC_RT5682_I2C=m
CONFIG_SND_SOC_RT5682_SDW=m
CONFIG_SND_SOC_RT5682S=m
CONFIG_SND_SOC_RT700=m
CONFIG_SND_SOC_RT700_SDW=m
CONFIG_SND_SOC_RT711=m
CONFIG_SND_SOC_RT711_SDW=m
CONFIG_SND_SOC_RT711_SDCA_SDW=m
CONFIG_SND_SOC_RT715=m
CONFIG_SND_SOC_RT715_SDW=m
CONFIG_SND_SOC_RT715_SDCA_SDW=m
# CONFIG_SND_SOC_RT9120 is not set
CONFIG_SND_SOC_SDW_MOCKUP=m
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIMPLE_AMPLIFIER is not set
# CONFIG_SND_SOC_SIMPLE_MUX is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SSM2305 is not set
# CONFIG_SND_SOC_SSM2518 is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
CONFIG_SND_SOC_SSM4567=m
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS2562 is not set
# CONFIG_SND_SOC_TAS2764 is not set
# CONFIG_SND_SOC_TAS2770 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TAS5720 is not set
# CONFIG_SND_SOC_TAS6424 is not set
# CONFIG_SND_SOC_TDA7419 is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TFA989X is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set
# CONFIG_SND_SOC_TLV320AIC32X4_SPI is not set
# CONFIG_SND_SOC_TLV320AIC3X_I2C is not set
# CONFIG_SND_SOC_TLV320AIC3X_SPI is not set
# CONFIG_SND_SOC_TLV320ADCX140 is not set
CONFIG_SND_SOC_TS3A227E=m
# CONFIG_SND_SOC_TSCS42XX is not set
# CONFIG_SND_SOC_TSCS454 is not set
# CONFIG_SND_SOC_UDA1334 is not set
# CONFIG_SND_SOC_WCD938X_SDW is not set
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8524 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8782 is not set
CONFIG_SND_SOC_WM8804=m
CONFIG_SND_SOC_WM8804_I2C=m
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8904 is not set
# CONFIG_SND_SOC_WM8960 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8974 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_WM8985 is not set
# CONFIG_SND_SOC_WSA881X is not set
# CONFIG_SND_SOC_ZL38060 is not set
# CONFIG_SND_SOC_MAX9759 is not set
# CONFIG_SND_SOC_MT6351 is not set
# CONFIG_SND_SOC_MT6358 is not set
# CONFIG_SND_SOC_MT6660 is not set
# CONFIG_SND_SOC_NAU8315 is not set
# CONFIG_SND_SOC_NAU8540 is not set
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_NAU8821 is not set
# CONFIG_SND_SOC_NAU8822 is not set
CONFIG_SND_SOC_NAU8824=m
CONFIG_SND_SOC_NAU8825=m
# CONFIG_SND_SOC_TPA6130A2 is not set
# CONFIG_SND_SOC_LPASS_WSA_MACRO is not set
# CONFIG_SND_SOC_LPASS_VA_MACRO is not set
# CONFIG_SND_SOC_LPASS_RX_MACRO is not set
# CONFIG_SND_SOC_LPASS_TX_MACRO is not set

# end of CODEC drivers

# CONFIG_SND_SIMPLE_CARD is not set
CONFIG_SND_X86=y
# CONFIG_HDMI_LPE_AUDIO is not set
CONFIG_SND_VIRTIO=m
CONFIG_AC97_BUS=m

#
# HID support
#
CONFIG_HID=m
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m

#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LED is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NINTENDO is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set

# end of Special HID drivers

#
# USB HID support
#
# CONFIG_USB_HID is not set
CONFIG_HID_PID=y

#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set

# end of USB HID Boot Protocol drivers
# end of USB HID support

#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set

# end of I2C HID support

#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set

# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set

# end of AMD SFH HID Support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_LED_TRIG=y
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set
# CONFIG_USB_LEDS_TRIGGER_USBPORT is not set
CONFIG_USB_AUTOSUSPEND_DELAY=2
# CONFIG_USB_MON is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DBGCAP=y
CONFIG_USB_XHCI_PCI=y
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
CONFIG_USB_EHCI_HCD_PLATFORM=y
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=m
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may #

# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
CONFIG_USB_UAS=m

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
CONFIG_USB_DWC2=y
CONFIG_USB_DWC2_HOST=y

#
# Gadget/Dual-role mode requires USB Gadget support to be enabled #
# CONFIG_USB_DWC2_PCI is not set
# CONFIG_USB_DWC2_DEBUG is not set
# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set

# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=m
# CONFIG_TYPEC_TCPM is not set
CONFIG_TYPEC_UCSI=m
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=m
# CONFIG_TYPEC_TPS6598X is not set
# CONFIG_TYPEC_HD3SS3220 is not set
# CONFIG_TYPEC_STUSB160X is not set

#
# USB Type-C Multiplexer/DeMultiplexer Switch support #
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# CONFIG_TYPEC_MUX_INTEL_PMC is not set

# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set

# end of USB Type-C Alternate Mode drivers

CONFIG_USB_ROLE_SWITCH=y
# CONFIG_USB_ROLES_INTEL_XHCI is not set
CONFIG_MMC=y
# CONFIG_MMC_BLOCK is not set
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
# CONFIG_MMC_CRYPTO is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_REALTEK_PCI=m
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
# CONFIG_MSPRO_BLOCK is not set
# CONFIG_MS_BLOCK is not set

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
# CONFIG_MEMSTICK_R592 is not set
CONFIG_MEMSTICK_REALTEK_PCI=m
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y

#
# LED drivers
#
# CONFIG_LEDS_88PM860X is not set
# CONFIG_LEDS_APU is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_LP8788 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_WM831X_STATUS is not set
# CONFIG_LEDS_WM8350 is not set
# CONFIG_LEDS_DA903X is not set
# CONFIG_LEDS_DA9052 is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_ADP5520 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_MAX8997 is not set
# CONFIG_LEDS_LM355x is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM) #
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_MLXCPLD is not set
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
CONFIG_LEDS_TRIGGER_DISK=y
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
CONFIG_LEDS_TRIGGER_CPU=y
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
CONFIG_LEDS_TRIGGER_PANIC=y
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
# CONFIG_EDAC_LEGACY_SYSFS is not set
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_DECODE_MCE is not set
CONFIG_EDAC_GHES=y
# CONFIG_EDAC_E752X is not set
# CONFIG_EDAC_I82975X is not set
# CONFIG_EDAC_I3000 is not set
# CONFIG_EDAC_I3200 is not set
# CONFIG_EDAC_IE31200 is not set
# CONFIG_EDAC_X38 is not set
# CONFIG_EDAC_I5400 is not set
# CONFIG_EDAC_I7CORE is not set
# CONFIG_EDAC_I5000 is not set
# CONFIG_EDAC_I5100 is not set
# CONFIG_EDAC_I7300 is not set
# CONFIG_EDAC_SBRIDGE is not set
# CONFIG_EDAC_SKX is not set
# CONFIG_EDAC_I10NM is not set
# CONFIG_EDAC_PND2 is not set
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_88PM860X is not set
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_LP8788 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_MAX8925 is not set
# CONFIG_RTC_DRV_MAX8998 is not set
# CONFIG_RTC_DRV_MAX8997 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_PALMAS is not set
# CONFIG_RTC_DRV_TPS6586X is not set
# CONFIG_RTC_DRV_TPS65910 is not set
# CONFIG_RTC_DRV_RC5T583 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_DA9052 is not set
# CONFIG_RTC_DRV_DA9055 is not set
# CONFIG_RTC_DRV_DA9063 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_WM831X is not set
# CONFIG_RTC_DRV_WM8350 is not set

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_PCAP is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=m
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
# CONFIG_INTEL_IDXD is not set
# CONFIG_INTEL_IDXD_COMPAT is not set
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_PLX_DMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=m
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_DW_EDMA is not set
# CONFIG_DW_EDMA_PCIE is not set
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
CONFIG_UDMABUF=y
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set

# end of DMABUF options

CONFIG_AUXDISPLAY=y
# CONFIG_HD44780 is not set
# CONFIG_KS0108 is not set
# CONFIG_IMG_ASCII_LCD is not set
# CONFIG_HT16K33 is not set
# CONFIG_LCD2S is not set
# CONFIG_PARPORT_PANEL is not set
# CONFIG_CHARLCD_BL_OFF is not set
# CONFIG_CHARLCD_BL_ON is not set
CONFIG_CHARLCD_BL_FLASH=y
# CONFIG_PANEL is not set
# CONFIG_UIO is not set
CONFIG_VFIO=y
CONFIG_VFIO_IOMMU_TYPE1=y
CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_PCI_CORE=y
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=y
CONFIG_VFIO_PCI_VGA=y
CONFIG_VFIO_PCI_IGD=y
# CONFIG_VFIO_MDEV is not set
CONFIG_IRQ_BYPASS_MANAGER=y
CONFIG_VIRT_DRIVERS=y
CONFIG_VBOXGUEST=m
# CONFIG_NITRO_ENCLAVES is not set
CONFIG_VIRTIO=y
CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=y
# CONFIG_VIRTIO_MEM is not set
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set

# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
CONFIG_STAGING=y
# CONFIG_PRISM2_USB is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTLLIB is not set
# CONFIG_RTL8723BS is not set
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_RTS5208 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
# CONFIG_FB_SM750 is not set
CONFIG_STAGING_MEDIA=y
CONFIG_INTEL_ATOMISP=y
# CONFIG_VIDEO_ZORAN is not set
# CONFIG_VIDEO_IPU3_IMGU is not set
# CONFIG_DVB_AV7110 is not set

#
# Android
#
# CONFIG_ASHMEM is not set

# end of Android

# CONFIG_LTE_GDM724X is not set
# CONFIG_GS_FPGABOOT is not set
CONFIG_UNISYSSPAR=y
# CONFIG_FB_TFT is not set
# CONFIG_KS7010 is not set
# CONFIG_PI433 is not set
# CONFIG_FIELDBUS_DEV is not set
# CONFIG_QLGE is not set
# CONFIG_WFX is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_ACERHDF is not set
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ACER_WMI is not set
# CONFIG_AMD_PMC is not set
# CONFIG_ADV_SWBUTTON is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ASUS_WMI is not set
# CONFIG_EEEPC_LAPTOP is not set
CONFIG_X86_PLATFORM_DRIVERS_DELL=y
CONFIG_ALIENWARE_WMI=m
CONFIG_DCDBAS=m
CONFIG_DELL_LAPTOP=m
CONFIG_DELL_RBU=m
CONFIG_DELL_RBTN=m
CONFIG_DELL_SMBIOS=m
CONFIG_DELL_SMBIOS_WMI=y
CONFIG_DELL_SMBIOS_SMM=y
CONFIG_DELL_SMO8800=m
CONFIG_DELL_WMI=m
CONFIG_DELL_WMI_PRIVACY=y
CONFIG_DELL_WMI_AIO=m
CONFIG_DELL_WMI_DESCRIPTOR=m
CONFIG_DELL_WMI_LED=m
CONFIG_DELL_WMI_SYSMAN=m
# CONFIG_AMILO_RFKILL is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_HP_WMI is not set
# CONFIG_IBM_RTL is not set
# CONFIG_IDEAPAD_LAPTOP is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_THINKPAD_LMI is not set
# CONFIG_INTEL_SAR_INT1092 is not set
# CONFIG_INTEL_SKL_INT3472 is not set
CONFIG_INTEL_PMC_CORE=y
CONFIG_INTEL_PMT_CLASS=m
CONFIG_INTEL_PMT_TELEMETRY=m
CONFIG_INTEL_PMT_CRASHLOG=m

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set

# end of Intel Speed Select Technology interface support

CONFIG_INTEL_WMI=y
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m
CONFIG_INTEL_HID_EVENT=m
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_OAKTRAIL is not set
CONFIG_INTEL_BXTWC_PMIC_TMU=m
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_MSI_WMI is not set
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
# CONFIG_SAMSUNG_LAPTOP is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_LG_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_SYSTEM76_ACPI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_I2C_MULTI_INSTANTIATE is not set
# CONFIG_MLX_PLATFORM is not set
CONFIG_FW_ATTR_CLASS=m
# CONFIG_INTEL_IPS is not set
CONFIG_INTEL_SCU_IPC=y
CONFIG_INTEL_SCU=y
CONFIG_INTEL_SCU_PCI=y
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_INTEL_SCU_IPC_UTIL is not set
CONFIG_PMC_ATOM=y
CONFIG_CHROME_PLATFORMS=y
# CONFIG_CHROMEOS_LAPTOP is not set
# CONFIG_CHROMEOS_PSTORE is not set
# CONFIG_CHROMEOS_TBMC is not set
# CONFIG_CROS_EC is not set
# CONFIG_CROS_KBD_LED_BACKLIGHT is not set
CONFIG_MELLANOX_PLATFORM=y
# CONFIG_MLXREG_HOTPLUG is not set
# CONFIG_MLXREG_IO is not set
# CONFIG_MLXREG_LC is not set
# CONFIG_SURFACE_PLATFORMS is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_COMMON_CLK_WM831X is not set
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_CLK_TWL6040 is not set
# CONFIG_COMMON_CLK_PALMAS is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
CONFIG_HWSPINLOCK=y

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y

# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IO_PGTABLE=y

# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_SVA_LIB=y
CONFIG_AMD_IOMMU=y
# CONFIG_AMD_IOMMU_V2 is not set CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
CONFIG_INTEL_IOMMU_SVM=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON is not set CONFIG_IRQ_REMAP=y
CONFIG_VIRTIO_IOMMU=m

#
# Remoteproc drivers
#
CONFIG_REMOTEPROC=y
# CONFIG_REMOTEPROC_CDEV is not set

# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set

# end of Rpmsg drivers

CONFIG_SOUNDWIRE=m

#
# SoundWire Devices
#
CONFIG_SOUNDWIRE_CADENCE=m
CONFIG_SOUNDWIRE_INTEL=m
# CONFIG_SOUNDWIRE_QCOM is not set
CONFIG_SOUNDWIRE_GENERIC_ALLOCATION=m

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#

# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#

# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#

# end of NXP/Freescale QorIQ SoC drivers

#
# i.MX SoC drivers
#

# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#

# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#

# end of Qualcomm SoC drivers

CONFIG_SOC_TI=y

#
# Xilinx SoC drivers
#

# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
CONFIG_DEVFREQ_GOV_POWERSAVE=y
CONFIG_DEVFREQ_GOV_USERSPACE=y
CONFIG_DEVFREQ_GOV_PASSIVE=y

#
# DEVFREQ Drivers
#
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
# CONFIG_EXTCON_FSA9480 is not set
# CONFIG_EXTCON_GPIO is not set
# CONFIG_EXTCON_INTEL_INT3496 is not set
# CONFIG_EXTCON_INTEL_CHT_WC is not set
# CONFIG_EXTCON_MAX14577 is not set
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_MAX77693 is not set
# CONFIG_EXTCON_MAX77843 is not set
# CONFIG_EXTCON_MAX8997 is not set
# CONFIG_EXTCON_PALMAS is not set
# CONFIG_EXTCON_PTN5150 is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
# CONFIG_EXTCON_USBC_TUSB320 is not set
CONFIG_MEMORY=y
# CONFIG_IIO is not set
# CONFIG_NTB is not set
CONFIG_VME_BUS=y

#
# VME Bridge Drivers
#
# CONFIG_VME_CA91CX42 is not set
# CONFIG_VME_TSI148 is not set
# CONFIG_VME_FAKE is not set

#
# VME Board Drivers
#
# CONFIG_VMIVME_7805 is not set

#
# VME Device Drivers
#
# CONFIG_VME_USER is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
CONFIG_PWM_CRC=y
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=y
CONFIG_PWM_LPSS_PCI=y
CONFIG_PWM_LPSS_PLATFORM=y
# CONFIG_PWM_PCA9685 is not set
# CONFIG_PWM_TWL is not set
# CONFIG_PWM_TWL_LED is not set

#
# IRQ chip support
#

# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_TI_SYSCON is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set

# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_SAMSUNG_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set

# end of PHY Subsystem

CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
CONFIG_IDLE_INJECT=y
# CONFIG_DTPM is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#

# end of Performance monitor support

CONFIG_RAS=y
CONFIG_RAS_CEC=y
# CONFIG_RAS_CEC_DEBUG is not set
# CONFIG_USB4 is not set

#
# Android
#
CONFIG_ANDROID=y
# CONFIG_ANDROID_BINDER_IPC is not set

# end of Android

CONFIG_LIBNVDIMM=y
# CONFIG_BLK_DEV_PMEM is not set
# CONFIG_ND_BLK is not set
CONFIG_ND_CLAIM=y
CONFIG_BTT=y
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_NVDIMM_KEYS=y
CONFIG_DAX=y
# CONFIG_DEV_DAX is not set
# CONFIG_DEV_DAX_HMEM is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set

# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
CONFIG_PM_OPP=y
# CONFIG_UNISYS_VISORBUS is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
CONFIG_INTERCONNECT=y
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set

# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_ZONEFS_FS is not set
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
CONFIG_FS_VERITY=y
# CONFIG_FS_VERITY_DEBUG is not set
CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
# CONFIG_QUOTA_DEBUG is not set
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS4_FS is not set
CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_VIRTIO_FS=y
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
CONFIG_NTFS3_FS=m
# CONFIG_NTFS3_64BIT_CLUSTER is not set
CONFIG_NTFS3_LZX_XPRESS=y
# CONFIG_NTFS3_FS_POSIX_ACL is not set

# end of DOS/FAT/EXFAT/NT Filesystems

984 lines not shown · raw message

Part of this message is not shown here. View the raw message.

Andy Shevchenko

2022-01-05 09:37 UTC #12 lore raw

Quoted 1 line · Arnd Bergmann

On Mon, Jan 3, 2022 at 6:12 AM Ingo Molnar <[email protected]> wrote:

...

Quoted 5 lines

Most of the patches should be the same either way (adding back missing includes to drivers, and doing cleanups to commonly included headers to avoid the deep nesting), the interesting bit will be how to properly define the larger structures without pulling in the rest of the world.

I'm wondering if the compiler can provide us the statistics of usage on a per custom type basis. In this case the highest frequency will probably mean that we better have that type in a separate header or tree of _independent_ headers.

Signature · 2 lines

With Best Regards,
Andy Shevchenko

Greg Kroah-Hartman

maintainer

2022-01-05 15:23 UTC #21 lore raw

Re: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 23 lines · Ingo Molnar

Quoted 20 lines · Greg Kroah-Hartman
Quoted 19 lines · Greg Kroah-Hartman
Quoted 7 lines · Ingo Molnar
Quoted 4 lines · Greg Kroah-Hartman
Quoted 2 lines · Ingo Molnar
There's one happy exception though, all the uninlining patches that uninline a single-call function are probably fine as-is:
Quoted 8 lines
Quoted 6 lines
<snip>
Quoted 1 line
3443e75fd1f8 headers/uninline: Uninline single-use function: kobject_has_children()
Let me go take this right now, no need for this to wait, it should be out of kobject.h as you rightfully show there is only one user.
Sure - here you go!
I just picked it out of your git tree already :)

Quoted 8 lines

Quoted 2 lines
Quoted 2 lines
Along those lines, any objection to me taking at least one other one? 3f8757078d27 ("headers/prep: usb: gadget: Fix namespace collision") and
Ack.
Quoted 1 line
Quoted 1 line
6fb993fa3832 ("headers/deps: USB: Optimize <linux/usb/ch9.h>
Ack.

This one required me to fix up a usb core file that was only including this .h file and not kernel.h which it also needed. Now resolved in my tree.

Quoted 12 lines

Quoted 5 lines
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dependencies, remove <linux/device.h>") look like I can take now into my USB tree with no problems.
Also these look good to go now:
bae9ddd98195 ("headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h")
Ack.
Quoted 1 line
c027175b37e5 ("headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c")
Ack.

Quoted 7 lines

Note that these latter two patches just simplified the task of my (simplistic) tooling, which is basically a shell script that inserts header dependencies to the head of .c and .h files, right in front of the first #include line it encounters.
These two patches do have some marginal clean-up value too, so I'm not opposed to merging them - just wanted to declare their true role. :-)

They all are sane cleanups, so I've taken them in my tree now. Make your patchset a bit smaller against 5.17-rc1 when that comes around :)

thanks,

greg k-h

Nathan Chancellor

maintainer

2022-01-05 21:42 UTC #40 lore raw

Quoted 24 lines · Ingo Molnar

Quoted 8 lines · Ingo Molnar
Quoted 5 lines · Nathan Chancellor
Quoted 2 lines
I.e. I think the bug was simply to make main.c aware of the array, now that the INIT_THREAD initialization is done there.
Yes, that seems right.
Quoted 8 lines
Quoted 5 lines
Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.
Yeah, there's a breakage window on ARM64, I'll track down that bisectability bug.
I haven't fixed this ARM64 bisection breakage yet, but I've integrated & backmerged all the other fixes and changes, and pushed it out to the WIP branch:

Quoted 5 lines

# 1755441e323b per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets
git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
Let me know if there's anything missing or if there's a new breakage.

I ended up running this through my full set of clang builds and a few GCC builds and found a few issues, which most of which appear to be compiler agnostic.

This whole report is against commit 1755441e323b ("per_task: Implement single template to define 'struct task_struct_per_task' fields and offsets").

In case it is relevant...

$ gcc --version | head -1
gcc (GCC) 11.2.1 20211231

1. kernel/stackleak.c build failure:

$ make -skj"$(nproc)" ARCH=x86_64 allmodconfig kernel/stackleak.o
kernel/stackleak.c: In function ‘stackleak_erase’:
kernel/stackleak.c:92:13: error: implicit declaration of function ‘on_thread_stack’; did you mean ‘setup_thread_stack’? [-Werror=implicit-function-declaration]
   92 |         if (on_thread_stack())
      |             ^~~~~~~~~~~~~~~
      |             setup_thread_stack
kernel/stackleak.c:95:28: error: implicit declaration of function ‘current_top_of_stack’ [-Werror=implicit-function-declaration]
   95 |                 boundary = current_top_of_stack();
      |                            ^~~~~~~~~~~~~~~~~~~~
kernel/stackleak.c: In function ‘stackleak_track_stack’:
kernel/stackleak.c:119:14: error: implicit declaration of function ‘ALIGN’ [-Werror=implicit-function-declaration]
  119 |         sp = ALIGN(sp, sizeof(unsigned long));
      |              ^~~~~
cc1: all warnings being treated as errors

This is fixed with the following diff although I am unsure if that is as minimal as it should be.

kernel/stackleak.c +2 -0

index ce161a8e8d97..d67c5475183b 100644
@@ -10,8 +10,10 @@
  * reveal and blocks some uninitialized stack variable attacks.
  */
 
+#include <asm/processor_api.h>
 #include <linux/stackleak.h>
 #include <linux/kprobes.h>
+#include <linux/align.h>
 
 #ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE
 #include <linux/jump_label.h>

2. Build failures with CONFIG_UAPI_HEADER_TEST=y and O=...

This was originally reproduced with allmodconfig but this is a simpler reproducer I think.

$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 defconfig

$ scripts/config --file .build/x86_64/.config -e HEADERS_INSTALL -e UAPI_HEADER_TEST

$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 olddefconfig usr/
In file included from <command-line>:
./usr/include/linux/rds.h:38:10: fatal error: uapi/linux/sockios.h: No such file or directory
   38 | #include <uapi/linux/sockios.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/rds.hdrtest] Error 1
In file included from ./usr/include/linux/qrtr.h:5,
                 from <command-line>:
./usr/include/linux/socket.h:5:10: fatal error: uapi/linux/socket_types.h: No such file or directory
    5 | #include <uapi/linux/socket_types.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from ./usr/include/linux/in.h:24,
                 from ./usr/include/linux/nfs_mount.h:12,
                 from <command-line>:
./usr/include/linux/socket.h:5:10: fatal error: uapi/linux/socket_types.h: No such file or directory
    5 | #include <uapi/linux/socket_types.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/qrtr.hdrtest] Error 1
make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/nfs_mount.hdrtest] Error 1
...

I don't see this when just building in the tree. I am guessing that commit f989e243f1f4 ("headers/deps: uapi/headers: Create usr/include/uapi symbolic link") needs to account for this?

3. Build failure with CONFIG_SAMPLE_CONNECTOR=m and O=...

I am guessing this has a similar root cause as above, since that commit mentions an error similar to this.

$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 allmodconfig samples/connector/
In file included from /home/nathan/cbl/src/linux-fast-headers/samples/connector/ucon.c:14:
usr/include/linux/netlink.h:5:10: fatal error: uapi/linux/types.h: No such file or directory
    5 | #include <uapi/linux/types.h>
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.

4. modpost warning around __sw_hweight64

With the first issue resolved:

$ make -skj"$(nproc)" ARCH=i386 allmodconfig
WARNING: modpost: EXPORT symbol "__sw_hweight64" [vmlinux] version ...
Is "__sw_hweight64" prototyped in <asm/asm-prototypes.h>?

5. Build error in arch/arm64/kvm/hyp/nvhe with LTO

With arm64 + CONFIG_LTO_CLANG_THIN=y, I see:

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig

$ scripts/config -e LTO_CLANG_THIN

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/nvhe/
ld.lld: error: arch/arm64/kvm/hyp/nvhe/hyp.lds:2: unknown directive: .macro

Quoted 2 lines

Quoted 2 lines
Quoted 2 lines
.macro __put, val, name
^

make[5]: *** [arch/arm64/kvm/hyp/nvhe/Makefile:51: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o] Error 1

I was not able to figure out the exact include chain but CONFIG_LTO causes asm/alternative-macros.h to be included in asm/rwonce.h, which eventually gets included in either asm/cache.h or asm/memory.h.

I managed to solve this with the following diff but I am not sure if there is a better or cleaner way to do that.

arch/arm64/include/asm/rwonce.h +2 -2

index 1bce62fa908a..e19572a205d0 100644
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(LINKER_SCRIPT)
 
 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>

@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !LINKER_SCRIPT */
 
 #include <asm-generic/rwonce.h>

I'll see if I can flush out any other issues.

Cheers,
Nathan

Nathan Chancellor

maintainer

2022-01-05 22:33 UTC #49 lore raw

Quoted 15 lines · Ingo Molnar

Quoted 5 lines · Nathan Chancellor
Unfortunately, while the kernel now builds, it does not boot in QEMU. I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.
Yeah, there's a breakage window on ARM64, I'll track down that bisectability bug.
Decoupling thread_info and task_struct incrementally, so that it bisects cleanly on all architectures, was always a big challenge. :-/

Quoted 7 lines

Quoted 5 lines
There is no output, even with earlycon, so it seems like something is going wrong in early boot code. I am not very familiar with the SCS code so I will see if I can debug this with gdb later (I'll try to see if it is reproducible with GCC as well; as Nick mentions, there is support being added to it and I don't mind building from source).
Just to make sure: with SCS disabled the same kernel boots fine?

Correct (thank you for making sure, I have definitely not tested that before...).

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 O=.build/arm64 defconfig Image.gz

$ boot-qemu.sh -a arm64 -k .build/arm64 -t 30s
...
[    0.000000] Linux version 5.16.0-rc8-798083-g1755441e323b (nathan@archlinux-ax161) (ClangBuiltLinux clang version 14.0.0 (https://github.com/llvm/llvm-project 4602f4169a21e75b82261ba1599046b157d1d021), LLD 14.0.0) #1 SMP PREEMPT Wed Jan 5 21:51:29 UTC 2022
...

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 O=.build/arm64.scs defconfig

$ scripts/config --file .build/arm64.scs/.config -e SHADOW_CALL_STACK

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 O=.build/arm64.scs olddefconfig Image.gz
...
qemu-system-aarch64: terminating on signal 15 from pid 690472 (timeout)
+ RET=124
+ set +x

Going back to v5.16-rc8, everything works fine.

$ boot-qemu.sh -a arm64 -k .build/arm64 -t 30s
...
[    0.000000] Linux version 5.16.0-rc8-795784-gc9e6606c7fe9 (nathan@archlinux-ax161) (ClangBuiltLinux clang version 14.0.0 (https://github.com/llvm/llvm-project 4602f4169a21e75b82261ba1599046b157d1d021), LLD 14.0.0) #1 SMP PREEMPT Wed Jan 5 22:27:39 UTC 2022
...

I don't think I will have time to look at this today but I will try tomorrow. Having the bisectability bug fixed would help narrow things down but I am almost certain it is something up with the new per_task infrastructure but I'll have to dig around and see if I can understand that first.

Cheers,
Nathan

Ingo Molnar

author

2022-01-06 11:26 UTC #22 lore raw

Re: [PATCH] headers/uninline: Uninline single-use function: kobject_has_children()

Quoted 10 lines · Greg Kroah-Hartman

Quoted 7 lines
Note that these latter two patches just simplified the task of my (simplistic) tooling, which is basically a shell script that inserts header dependencies to the head of .c and .h files, right in front of the first #include line it encounters.
These two patches do have some marginal clean-up value too, so I'm not opposed to merging them - just wanted to declare their true role. :-)
They all are sane cleanups, so I've taken them in my tree now. Make your patchset a bit smaller against 5.17-rc1 when that comes around :)

Thank you! :-)

Ingo

Nathan Chancellor

maintainer

2022-01-07 00:29 UTC #51 lore raw

[1]: https://github.com/ClangBuiltLinux/linux/issues/1563
[2]: https://github.com/marxin/cvise
[3]: https://github.com/nathanchance/creduce-files/tree/61056fd763ae3bfb53ff0ae4c1d95550c7c0a5b7/cbl-1563

Quoted 7 lines · Ingo Molnar

Quoted 7 lines
Quoted 6 lines
With the fast-headers kernel that's down to ~36,000 lines of code, almost a factor of 3 reduction:
# fast-headers-v1:
kepler:~/mingo.tip.git> wc -l kernel/pid.i
35941 kernel/pid.i

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Quoted 4 lines
Coming from someone who often has to reduce a preprocessed kernel source file with creduce/cvise to report compiler bugs, this will be a very welcomed change, as those tools will have to do less work, and I can get my reports done faster.
That's nice, didn't think of that side effect.
Could you perhaps measure this too, to see how much of a benefit it is?

As it turns out, I got an opportunity to measure this sooner rather than later [1]. Using cvise [2] with an identical set of toolchains and interestingness test [3], reducing net/core/skbuff.c took significantly less time with the version from the fast-headers tree.

v5.16-rc8:

$ wc -l skbuff.i
105135 skbuff.i

$ time cvise test.fish skbuff.i
...
________________________________________________________
Executed in  114.02 mins    fish           external
   usr time  1180.43 mins   69.29 millis  1180.43 mins
   sys time  229.80 mins  248.11 millis  229.79 mins

fast-headers:

$ wc -l skbuff.i
78765 skbuff.i

$ time cvise test.fish skbuff.i
...
________________________________________________________
Executed in   47.38 mins    fish           external
   usr time  620.17 mins   32.78 millis  620.17 mins
   sys time  123.70 mins  122.38 millis  123.70 mins

I was not expecting that much of a difference but it somewhat makes sense, as the tool spends less time eliminated unused code and the compiler invocations will be incrementally quicker as the input becomes smaller.

Cheers,
Nathan

Ingo Molnar

author

2022-01-08 10:32 UTC #41 lore raw

PATCH 1/1 headers/deps: Add header dependencies to .c files: <linux/ptrace_api.h>

Quoted 5 lines · Nathan Chancellor

1. kernel/stackleak.c build failure:

$ make -skj"$(nproc)" ARCH=x86_64 allmodconfig kernel/stackleak.o
kernel/stackleak.c: In function ‘stackleak_erase’:
kernel/stackleak.c:92:13: error: implicit declaration of function ‘on_thread_stack’; did you mean ‘setup_thread_stack’? [-Werror=implicit-function-declaration]

So it turns out that my build environment didn't have the stackleak code enabled at all:

kepler:~/mingo.tip.git> make ARCH=x86_64 allmodconfig #

  # configuration written to .config
  #
  kepler:~/mingo.tip.git> grep -E 'STACKLEAK|GCC_PLUGIN' .config
  CONFIG_HAVE_ARCH_STACKLEAK=y
  CONFIG_HAVE_GCC_PLUGINS=y

... because it failed this condition:

menuconfig GCC_PLUGINS
...

        depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)

... because there were no plugin headers:

kepler:~/mingo.tip.git> gcc -print-file-name=plugin /usr/lib/gcc/x86_64-linux-gnu/10/plugin

kepler:~/mingo.tip.git> ls $(gcc -print-file-name=plugin)/include/
ls: cannot access '/usr/lib/gcc/x86_64-linux-gnu/10/plugin/include/': No such file or directory

... because I needed to install the plugin-development packages for gcc-10.

After installing those I have stackleak:

kepler:~/mingo.tip.git> grep STACKLEAK .config
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_GCC_PLUGIN_STACKLEAK=y
CONFIG_STACKLEAK_TRACK_MIN_SIZE=100
CONFIG_STACKLEAK_METRICS=y
CONFIG_STACKLEAK_RUNTIME_DISABLE=y

and was able to reproduce your build failure. :-)

Quoted 8 lines

This is fixed with the following diff although I am unsure if that is as minimal as it should be.
kernel/stackleak.c +0 -0
index ce161a8e8d97..d67c5475183b 100644

kernel/stackleak.c line 16

Quoted 7 lines

kernel/stackleak.c +2 -0

@@ -10,8 +10,10 @@
  * reveal and blocks some uninitialized stack variable attacks.
  */
 
+#include <asm/processor_api.h>
 #include <linux/stackleak.h>
 #include <linux/kprobes.h>
+#include <linux/align.h>

Yeah - I used a simpler & more generic header: <linux/ptrace_api.h> - see the patch below.

But your solution is functionally equivalent. This fix will be included in -v2, hopefully released later today.

Thanks,

Ingo

===============>
From: Ingo Molnar <[email protected]>
Date: Sat, 8 Jan 2022 11:29:17 +0100
Subject: [PATCH] headers/deps: Add header dependencies to .c files: <linux/ptrace_api.h>

Signed-off-by Ingo Molnar <[email protected]>

---
 kernel/stackleak.c | 1 +
 1 file changed, 1 insertion(+)

kernel/stackleak.c +1 -0

index ce161a8e8d97..fde49e2f209a 100644
@@ -10,6 +10,7 @@
  * reveal and blocks some uninitialized stack variable attacks.
  */
 
+#include <linux/ptrace_api.h>
 #include <linux/stackleak.h>
 #include <linux/kprobes.h>

Ingo Molnar

author

2022-01-08 11:08 UTC #42 lore raw

PATCH 1/1 FIX: headers/deps: uapi/headers: Create usr/include/uapi symbolic link

Quoted 10 lines · Nathan Chancellor

2. Build failures with CONFIG_UAPI_HEADER_TEST=y and O=...
This was originally reproduced with allmodconfig but this is a simpler reproducer I think.
$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 defconfig
$ scripts/config --file .build/x86_64/.config -e HEADERS_INSTALL -e UAPI_HEADER_TEST
$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 olddefconfig usr/

The simplified & scripted reproducer is very useful, thanks a ton!

Quoted 23 lines

In file included from <command-line>:
./usr/include/linux/rds.h:38:10: fatal error: uapi/linux/sockios.h: No such file or directory
38 | #include <uapi/linux/sockios.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/rds.hdrtest] Error 1 In file included from ./usr/include/linux/qrtr.h:5,
from <command-line>:
./usr/include/linux/socket.h:5:10: fatal error: uapi/linux/socket_types.h: No such file or directory
5 | #include <uapi/linux/socket_types.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from ./usr/include/linux/in.h:24,
                 from ./usr/include/linux/nfs_mount.h:12,
                 from <command-line>:
./usr/include/linux/socket.h:5:10: fatal error: uapi/linux/socket_types.h: No such file or directory
5 | #include <uapi/linux/socket_types.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/qrtr.hdrtest] Error 1 make[4]: *** [/home/nathan/cbl/src/linux-fast-headers/usr/include/Makefile:106: usr/include/linux/nfs_mount.hdrtest] Error 1
...

Quoted 3 lines

I don't see this when just building in the tree. I am guessing that commit f989e243f1f4 ("headers/deps: uapi/headers: Create usr/include/uapi symbolic link") needs to account for this?

Yeah. Here's my second attempt that creates the symlink as the header-install make process, as it should - also pushed out into sched/headers.

(My Makefile-fu isn't overly powerful though, so this is just an attempt.)

This fix will be backmerged into f989e243f1f4 in -v2.

Thanks,

Ingo

=========================>
From: Ingo Molnar <[email protected]>
Date: Sat, 8 Jan 2022 12:05:57 +0100
Subject: [PATCH] FIX: f989e243f1f4 headers/deps: uapi/headers: Create usr/include/uapi symbolic link

---
 scripts/Makefile.headersinst | 3 +++
 usr/include/uapi             | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

scripts/Makefile.headersinst +3 -0

index 029d85bb0b23..8ac831458143 100644
@@ -78,6 +78,9 @@ existing-headers := $(filter $(old-headers), $(all-headers))
 
 -include $(foreach f,$(existing-headers),$(dir $(f)).$(notdir $(f)).cmd)
 
+# link the <uapi/*> namespace:
+LINK := $(shell ln -sf ../include $(objtree)/$(dst)/uapi)
+
 PHONY += FORCE
 FORCE:

usr/include/uapi deleted +0 -1

deleted file mode 120000
index f5030fe88998..000000000000
@@ -1 +0,0 @@
-../include
\ No newline at end of file

Ingo Molnar

author

2022-01-08 11:19 UTC #43 lore raw

Quoted 11 lines · Nathan Chancellor

3. Build failure with CONFIG_SAMPLE_CONNECTOR=m and O=...
I am guessing this has a similar root cause as above, since that commit mentions an error similar to this.
$ make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 allmodconfig samples/connector/
In file included from /home/nathan/cbl/src/linux-fast-headers/samples/connector/ucon.c:14:
usr/include/linux/netlink.h:5:10: fatal error: uapi/linux/types.h: No such file or directory
    5 | #include <uapi/linux/types.h>
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.

Correct - this test now passes with the UAPI symlink fix applied:

  kepler:~/mingo.tip.git> make -skj"$(nproc)" ARCH=x86_64 O=.build/x86_64 allmodconfig samples/connector/
  kepler:~/mingo.tip.git>

Thanks,

Ingo

Ingo Molnar

author

2022-01-08 11:38 UTC #44 lore raw

PATCH 1/1 x86/bitops: Remove unused __sw_hweight64() assembly implementation

Quoted 7 lines · Nathan Chancellor

4. modpost warning around __sw_hweight64

With the first issue resolved:

$ make -skj"$(nproc)" ARCH=i386 allmodconfig
WARNING: modpost: EXPORT symbol "__sw_hweight64" [vmlinux] version ...
Is "__sw_hweight64" prototyped in <asm/asm-prototypes.h>?

So I was hoping that this commit made explicit all the random indirect header dependencies x86's <asm/asm-prototypes.h> imports on mainline:

headers/prep: x86/kbuild: Add symbol prototype header dependencies for modversions

... but a i386 case slipped through.

But, this actually highlights a real x86 symbol export bug IMO.

__arch_hweight64() on x86-32 is defined in the arch/x86/include/asm/arch_hweight.h header as an inline, using __arch_hweight32():

  #ifdef CONFIG_X86_32
  static inline unsigned long __arch_hweight64(__u64 w)
  {
          return  __arch_hweight32((u32)w) +
                  __arch_hweight32((u32)(w >> 32));
  }

*But* there's also a __sw_hweight64() assembly implementation:

arch/x86/lib/hweight.S

  SYM_FUNC_START(__sw_hweight64)
  #ifdef CONFIG_X86_64
  ...
  #else /* CONFIG_X86_32 */
        /* We're getting an u64 arg in (%eax,%edx): unsigned long hweight64(__u64 w) */
        pushl   %ecx

        call    __sw_hweight32
        movl    %eax, %ecx                      # stash away result
        movl    %edx, %eax                      # second part of input
        call    __sw_hweight32
        addl    %ecx, %eax                      # result

popl %ecx
ret
#endif

But this __sw_hweight64 assembly implementation is unused - and it's essentially doing the same thing that the inline wrapper does. Then we export this unused helper with no prototype.

This went unnoticed in mainline, because mainline defines the prototype for the unused prototype.

So I think the real solution to resolve this is by removing the unused 32-bit variant - see the patch below.

Thanks,

Ingo

======================>
From: Ingo Molnar <[email protected]>
Date: Sat, 8 Jan 2022 12:33:58 +0100
Subject: [PATCH] x86/bitops: Remove unused __sw_hweight64() assembly implementation

Header cleanups in the fast-headers tree highlighted that we have an unused assembly implementation for __sw_hweight64():

WARNING: modpost: EXPORT symbol "__sw_hweight64" [vmlinux] version ...

__arch_hweight64() on x86-32 is defined in the arch/x86/include/asm/arch_hweight.h header as an inline, using __arch_hweight32():

  #ifdef CONFIG_X86_32
  static inline unsigned long __arch_hweight64(__u64 w)
  {
          return  __arch_hweight32((u32)w) +
                  __arch_hweight32((u32)(w >> 32));
  }

*But* there's also a __sw_hweight64() assembly implementation:

arch/x86/lib/hweight.S

  SYM_FUNC_START(__sw_hweight64)
  #ifdef CONFIG_X86_64
  ...
  #else /* CONFIG_X86_32 */
        /* We're getting an u64 arg in (%eax,%edx): unsigned long hweight64(__u64 w) */
        pushl   %ecx

        call    __sw_hweight32
        movl    %eax, %ecx                      # stash away result
        movl    %edx, %eax                      # second part of input
        call    __sw_hweight32
        addl    %ecx, %eax                      # result

popl %ecx
ret
#endif

But this __sw_hweight64 assembly implementation is unused - and it's essentially doing the same thing that the inline wrapper does.

Remove the assembly version and add a comment about it.

Reported-by Nathan Chancellor <[email protected]>

Signed-off-by Ingo Molnar <[email protected]>

---
 arch/x86/lib/hweight.S | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

arch/x86/lib/hweight.S +6 ~~-14~~

index dbf8cc97b7f5..585e2f1372d0 100644
@@ -36,8 +36,12 @@ SYM_FUNC_START(__sw_hweight32)
 SYM_FUNC_END(__sw_hweight32)
 EXPORT_SYMBOL(__sw_hweight32)
 
-SYM_FUNC_START(__sw_hweight64)
+/*
+ * No 32-bit variant, because it's implemented as an inline wrapper
+ * on top of __arch_hweight32():
+ */
 #ifdef CONFIG_X86_64
+SYM_FUNC_START(__sw_hweight64)
 	pushq   %rdi
 	pushq   %rdx

@@ -66,18 +70,6 @@ SYM_FUNC_START(__sw_hweight64)
 	popq    %rdx
 	popq    %rdi
 	ret
-#else /* CONFIG_X86_32 */
-	/* We're getting an u64 arg in (%eax,%edx): unsigned long hweight64(__u64 w) */
-	pushl   %ecx
-
-	call    __sw_hweight32
-	movl    %eax, %ecx                      # stash away result
-	movl    %edx, %eax                      # second part of input
-	call    __sw_hweight32
-	addl    %ecx, %eax                      # result
-
-	popl    %ecx
-	ret
-#endif
 SYM_FUNC_END(__sw_hweight64)
 EXPORT_SYMBOL(__sw_hweight64)
+#endif

Ingo Molnar

author

2022-01-08 11:49 UTC #45 lore raw

Quoted 35 lines · Nathan Chancellor

5. Build error in arch/arm64/kvm/hyp/nvhe with LTO
With arm64 + CONFIG_LTO_CLANG_THIN=y, I see:
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig
$ scripts/config -e LTO_CLANG_THIN
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/nvhe/
ld.lld: error: arch/arm64/kvm/hyp/nvhe/hyp.lds:2: unknown directive: .macro
Quoted 2 lines
Quoted 2 lines
Quoted 2 lines
.macro __put, val, name
^
make[5]: *** [arch/arm64/kvm/hyp/nvhe/Makefile:51: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o] Error 1
I was not able to figure out the exact include chain but CONFIG_LTO causes asm/alternative-macros.h to be included in asm/rwonce.h, which eventually gets included in either asm/cache.h or asm/memory.h.
I managed to solve this with the following diff but I am not sure if there is a better or cleaner way to do that.
arch/arm64/include/asm/rwonce.h +1 -1
index 1bce62fa908a..e19572a205d0 100644
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(LINKER_SCRIPT)
 
 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>

arch/arm64/include/asm/rwonce.h line 69

Quoted 5 lines

arch/arm64/include/asm/rwonce.h +1 -1

@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !LINKER_SCRIPT */

So the error message suggests that the linker script somehow ends up including asm-generic/export.h:

kepler:~/mingo.tip.git> git grep 'macro __put' include/asm-generic/export.h:.macro __put, val, name

But I'd guess that similar to the __ASSEMBLY__ patterns we have in headers, not including the rwonce.h bits if LINKER_SCRIPT is defined is probably close to the right solution - but it would also know how such a low level header ended up in a linker script. Might have been to pick up some offset or size definition somewhere?

I.e. how did the build end up including asm/rwonce.h?

You can generally debug such weird dependency chains by putting a debug #warning into the affected header - such as the patch below.

This prints a stack of the header dependencies:

CC kernel/sched/core.o
In file included from ./include/linux/compiler.h:263,
from ./include/linux/static_call_types.h:7, from ./include/linux/kernel.h:6,
from ./include/linux/highmem.h:5,
from kernel/sched/core.c:9:
./arch/arm64/include/asm/rwonce.h:8:2: warning: #warning debug [-Wcpp]
8 | #warning debug

... and should in principle also work in the linker script context.

Thanks,

Ingo

===============>

 arch/arm64/include/asm/rwonce.h | 2 ++
 1 file changed, 2 insertions(+)

arch/arm64/include/asm/rwonce.h +2 -0

index 1bce62fa908a..5b3305381481 100644
@@ -5,6 +5,8 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
+#warning debug
+
 #ifdef CONFIG_LTO
 
 #include <linux/compiler_types.h>

Ingo Molnar

author

2022-01-08 11:54 UTC #52 lore raw

Quoted 46 lines · Nathan Chancellor

Quoted 7 lines · Ingo Molnar
Quoted 7 lines
Quoted 6 lines
With the fast-headers kernel that's down to ~36,000 lines of code, almost a factor of 3 reduction:
# fast-headers-v1:
kepler:~/mingo.tip.git> wc -l kernel/pid.i
35941 kernel/pid.i
Quoted 8 lines
Quoted 4 lines
Coming from someone who often has to reduce a preprocessed kernel source file with creduce/cvise to report compiler bugs, this will be a very welcomed change, as those tools will have to do less work, and I can get my reports done faster.
That's nice, didn't think of that side effect.
Could you perhaps measure this too, to see how much of a benefit it is?
As it turns out, I got an opportunity to measure this sooner rather than later [1]. Using cvise [2] with an identical set of toolchains and interestingness test [3], reducing net/core/skbuff.c took significantly less time with the version from the fast-headers tree.
v5.16-rc8:
$ wc -l skbuff.i
105135 skbuff.i
$ time cvise test.fish skbuff.i
...
________________________________________________________
Executed in  114.02 mins    fish           external
   usr time  1180.43 mins   69.29 millis  1180.43 mins
   sys time  229.80 mins  248.11 millis  229.79 mins
fast-headers:
$ wc -l skbuff.i
78765 skbuff.i
$ time cvise test.fish skbuff.i
...
________________________________________________________
Executed in   47.38 mins    fish           external
   usr time  620.17 mins   32.78 millis  620.17 mins
   sys time  123.70 mins  122.38 millis  123.70 mins

Quoted 4 lines

I was not expecting that much of a difference but it somewhat makes sense, as the tool spends less time eliminated unused code and the compiler invocations will be incrementally quicker as the input becomes smaller.

Indeed, that's a +140% speedup in build performance, not bad. :-)

I also got around testing Clang (12) myself, and with my 'reference distro config' I got these results:

 # v5.16-rc8
 #
 Performance counter stats for 'make -j96 vmlinux LLVM=1' (3 runs):

 55,638,543,274,254      instructions              #    0.77  insn per cycle           ( +-  0.01% )
 72,074,911,968,393      cycles                    #    3.901 GHz                      ( +-  0.04% )
      18,490,451.51 msec cpu-clock                 #   54.740 CPUs utilized            ( +-  0.04% )

                 337.788 +- 0.834 seconds time elapsed  ( +-  0.25% )

#
# -fast-headers-v2-rc3
#
Performance counter stats for 'make -j96 vmlinux LLVM=1' (3 runs):

 30,904,130,243,855      instructions              #    0.76  insn per cycle           ( +-  0.02% )
 40,703,482,733,690      cycles                    #    3.898 GHz                      ( +-  0.00% )
      10,443,670.86 msec cpu-clock                 #   58.093 CPUs utilized            ( +-  0.00% )

                 179.773 +- 0.829 seconds time elapsed  ( +-  0.46% )

That's a +88% build speedup on Clang - even better than the +78% speedup on GCC(-10).

Thanks,

Ingo

Ingo Molnar

author

2022-01-08 12:17 UTC #46 lore raw

Quoted 34 lines · Ingo Molnar

Quoted 32 lines · Nathan Chancellor
5. Build error in arch/arm64/kvm/hyp/nvhe with LTO
With arm64 + CONFIG_LTO_CLANG_THIN=y, I see:
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig
$ scripts/config -e LTO_CLANG_THIN
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/nvhe/
ld.lld: error: arch/arm64/kvm/hyp/nvhe/hyp.lds:2: unknown directive: .macro
Quoted 2 lines
Quoted 2 lines
Quoted 2 lines
.macro __put, val, name
^
make[5]: *** [arch/arm64/kvm/hyp/nvhe/Makefile:51: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o] Error 1
I was not able to figure out the exact include chain but CONFIG_LTO causes asm/alternative-macros.h to be included in asm/rwonce.h, which eventually gets included in either asm/cache.h or asm/memory.h.
I managed to solve this with the following diff but I am not sure if there is a better or cleaner way to do that.
arch/arm64/include/asm/rwonce.h +1 -1
index 1bce62fa908a..e19572a205d0 100644
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(LINKER_SCRIPT)
 

Quoted 8 lines

arch/arm64/include/asm/rwonce.h line 69

Quoted 8 lines

arch/arm64/include/asm/rwonce.h +1 -1

 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>

@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !LINKER_SCRIPT */

In any case I've added your fix to the fast-headers tree, with a comment that this might just be a workaround.

Thanks,

Ingo

Ingo Molnar

author

2022-01-08 15:16 UTC #50 lore raw

Quoted 4 lines · Nathan Chancellor

I tried to checkout at 9006a48618cc0cacd3f59ff053e6509a9af5cc18 to see if I could reproduce that breakage there but the build errors out at that change (I do see notes of bisection breakage in some of the commits) so I assume that is expected.

Yeah, so the underlying problem is that these two commits want to be a single commit:

# Commit #117
headers/deps: Move task->thread_info to per_task()

# Commit #106
headers/deps: Move thread_info APIs to <linux/sched/thread_info_api.h>

As we can only switch ARM64's <asm/preempt.h> to use per_task() - which requires <linux/sched.h> - if we first fix & simplify <linux/sched.h>'s header dependencies, which is done to a sufficient level by:

# Commit #556
headers/deps: Optimize <linux/sched.h> dependencies, remove <linux/sched/thread_info_api_lowlevel.h> inclusion

So it's a catch-22, and quite a complication, and a bisection breakage distance of ~450 commits, with a lot of ordering assumptions & conflicts along the way, should we attempt to move the first two to later stages. :-/

But today I've restructured the tree, and the -v2-to-be tree is now fully bisectable on ARM64 too. :-)

There's a single, late per_cpu() conversion commit, after the first phase of <linux/sched.h> simplifications:

headers/deps: Move task->thread_info to per_task()

I'd guess that either this one is that breaks SCS for you, or the ::thread conversion:

headers/deps: per_task, arm64, x86: Convert task_struct::thread to a per_task() field

I've pushed out these fixes to the sched/headers branch a couple of minutes ago, and this will be part of the -v2 release as well.

Thanks,

Ingo

tip-bot2 for Ingo Molnar

merge bot Applied

2022-01-08 21:57 UTC #36 lore raw

[tip: x86/build] x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs

The following commit has been merged into the x86/build branch of tip:

Commit-ID:     b6aa86cff44cf099299d3a5e66348cb709cd7964
Gitweb:        https://git.kernel.org/tip/b6aa86cff44cf099299d3a5e66348cb709cd7964
Author:        Ingo Molnar <[email protected]>
AuthorDate:    Wed, 05 Jan 2022 01:35:58 +01:00
Committer:     Ingo Molnar <[email protected]>
CommitterDate: Sat, 08 Jan 2022 22:55:29 +01:00

x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs

Most distro kernels have this option enabled, to improve debug output.

Lockdep also selects it.

Enable this in the defconfig kernel as well, to make it more representative of what people are using on x86.

Signed-off-by Ingo Molnar <[email protected]>

Link https://lore.kernel.org/r/[email protected] open here

---
 arch/x86/configs/i386_defconfig   | 1 +
 arch/x86/configs/x86_64_defconfig | 1 +
 2 files changed, 2 insertions(+)

arch/x86/configs/i386_defconfig +1 -0

index 5d97a2d..71124cf 100644
@@ -261,3 +261,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y

arch/x86/configs/x86_64_defconfig +1 -0

index 30ab3e5..92b1169 100644
@@ -257,3 +257,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y

Peter Zijlstra

maintainer

2022-01-10 10:28 UTC #5 lore raw

Quoted 11 lines · Ingo Molnar

Yeah, so I *did* find this somewhat suboptimal too, and developed an earlier version that used linker section tricks to gain the field offsets more automatically.
It was an unmitigated disaster: was fragile on x86 already (which has a zoo of linking quirks with no precedent of doing this before bounds.c processing), but on ARM64 and probably on most of the other RISC-ish architectures there was also a real runtime code generation cost of using linker tricks: 2-3 extra instructions per per_task() use - clearly unacceptable.

Quoted 3 lines

Found this out the hard way after making it boot & work on ARM64 and looking at the assembly output, trying to figure out why the generated code size increased. :-/

Right, I suggested you do the per-cpu thing. And then Mark reported that code-gen issue on arm64.

I'm still thinking the toolchains ought to look at fixing that. It'll be too late to use for per-task, but at least the current per-cpu usages will (eventually) get better code-gen.

Nathan Chancellor

maintainer

2022-01-10 20:03 UTC #47 lore raw

Quoted 47 lines · Ingo Molnar

Quoted 35 lines · Nathan Chancellor
5. Build error in arch/arm64/kvm/hyp/nvhe with LTO
With arm64 + CONFIG_LTO_CLANG_THIN=y, I see:
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig
$ scripts/config -e LTO_CLANG_THIN
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/nvhe/
ld.lld: error: arch/arm64/kvm/hyp/nvhe/hyp.lds:2: unknown directive: .macro
Quoted 2 lines
Quoted 2 lines
Quoted 2 lines
.macro __put, val, name
^
make[5]: *** [arch/arm64/kvm/hyp/nvhe/Makefile:51: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o] Error 1
I was not able to figure out the exact include chain but CONFIG_LTO causes asm/alternative-macros.h to be included in asm/rwonce.h, which eventually gets included in either asm/cache.h or asm/memory.h.
I managed to solve this with the following diff but I am not sure if there is a better or cleaner way to do that.
arch/arm64/include/asm/rwonce.h +1 -1
index 1bce62fa908a..e19572a205d0 100644
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(LINKER_SCRIPT)
 
 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>
arch/arm64/include/asm/rwonce.h line 69
Quoted 5 lines
arch/arm64/include/asm/rwonce.h +1 -1
@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !LINKER_SCRIPT */
So the error message suggests that the linker script somehow ends up including asm-generic/export.h:

Quoted 4 lines

kepler:~/mingo.tip.git> git grep 'macro __put' include/asm-generic/export.h:.macro __put, val, name
?

Correct.

Quoted 22 lines

But I'd guess that similar to the __ASSEMBLY__ patterns we have in headers, not including the rwonce.h bits if LINKER_SCRIPT is defined is probably close to the right solution - but it would also know how such a low level header ended up in a linker script. Might have been to pick up some offset or size definition somewhere?
I.e. how did the build end up including asm/rwonce.h?
You can generally debug such weird dependency chains by putting a debug #warning into the affected header - such as the patch below.
This prints a stack of the header dependencies:
CC kernel/sched/core.o
In file included from ./include/linux/compiler.h:263,
from ./include/linux/static_call_types.h:7, from ./include/linux/kernel.h:6,
from ./include/linux/highmem.h:5,
from kernel/sched/core.c:9:
./arch/arm64/include/asm/rwonce.h:8:2: warning: #warning debug [-Wcpp]
8 | #warning debug

Quoted 1 line

... and should in principle also work in the linker script context.

Neat trick! I added

#ifdef LINKER_SCRIPT
#warning debug
#endif

to arch/arm64/include/asm/rwonce.h and built with ThinLTO, which reveals:

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig

$ scripts/config -d LTO_NONE -e LTO_CLANG_THIN

$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/
In file included from arch/arm64/kvm/hyp/nvhe/hyp.lds.S:12:
In file included from ./arch/arm64/include/asm/memory.h:18:
In file included from ./arch/arm64/include/asm/thread_info.h:11:
In file included from ./include/linux/compiler.h:263:
./arch/arm64/include/asm/rwonce.h:9:2: warning: debug [-W#warnings]
#warning debug
 ^
1 warning generated.

I wonder if the compiler.h include could be broken up? I removed it altogether just to see what would break and defconfig, defconfig + CONFIG_LTO_CLANG_THIN=y, and allmodconfig all continue to build.

Cheers,
Nathan

Nathan Chancellor

maintainer

2022-01-10 20:05 UTC #48 lore raw

Quoted 101 lines · Nathan Chancellor

Quoted 47 lines · Ingo Molnar
Quoted 35 lines · Nathan Chancellor
5. Build error in arch/arm64/kvm/hyp/nvhe with LTO
With arm64 + CONFIG_LTO_CLANG_THIN=y, I see:
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig
$ scripts/config -e LTO_CLANG_THIN
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/nvhe/
ld.lld: error: arch/arm64/kvm/hyp/nvhe/hyp.lds:2: unknown directive: .macro
Quoted 2 lines
Quoted 2 lines
Quoted 2 lines
.macro __put, val, name
^
make[5]: *** [arch/arm64/kvm/hyp/nvhe/Makefile:51: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.tmp.o] Error 1
I was not able to figure out the exact include chain but CONFIG_LTO causes asm/alternative-macros.h to be included in asm/rwonce.h, which eventually gets included in either asm/cache.h or asm/memory.h.
I managed to solve this with the following diff but I am not sure if there is a better or cleaner way to do that.
arch/arm64/include/asm/rwonce.h +1 -1
index 1bce62fa908a..e19572a205d0 100644
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(LINKER_SCRIPT)
 
 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>
arch/arm64/include/asm/rwonce.h line 69
Quoted 5 lines
arch/arm64/include/asm/rwonce.h +1 -1
@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !LINKER_SCRIPT */
So the error message suggests that the linker script somehow ends up including asm-generic/export.h:
Quoted 4 lines
kepler:~/mingo.tip.git> git grep 'macro __put' include/asm-generic/export.h:.macro __put, val, name
?
Correct.
Quoted 22 lines
But I'd guess that similar to the __ASSEMBLY__ patterns we have in headers, not including the rwonce.h bits if LINKER_SCRIPT is defined is probably close to the right solution - but it would also know how such a low level header ended up in a linker script. Might have been to pick up some offset or size definition somewhere?
I.e. how did the build end up including asm/rwonce.h?
You can generally debug such weird dependency chains by putting a debug #warning into the affected header - such as the patch below.
This prints a stack of the header dependencies:
CC kernel/sched/core.o
In file included from ./include/linux/compiler.h:263,
from ./include/linux/static_call_types.h:7, from ./include/linux/kernel.h:6,
from ./include/linux/highmem.h:5,
from kernel/sched/core.c:9:
./arch/arm64/include/asm/rwonce.h:8:2: warning: #warning debug [-Wcpp]
8 | #warning debug
Quoted 1 line
... and should in principle also work in the linker script context.
Neat trick! I added
#ifdef LINKER_SCRIPT
#warning debug
#endif
to arch/arm64/include/asm/rwonce.h and built with ThinLTO, which reveals:
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 defconfig
$ scripts/config -d LTO_NONE -e LTO_CLANG_THIN
$ make -skj"$(nproc)" ARCH=arm64 LLVM=1 olddefconfig arch/arm64/kvm/hyp/
In file included from arch/arm64/kvm/hyp/nvhe/hyp.lds.S:12:
In file included from ./arch/arm64/include/asm/memory.h:18:
In file included from ./arch/arm64/include/asm/thread_info.h:11:
In file included from ./include/linux/compiler.h:263:
./arch/arm64/include/asm/rwonce.h:9:2: warning: debug [-W#warnings]
#warning debug
 ^
1 warning generated.

Quoted 3 lines

I wonder if the compiler.h include could be broken up? I removed it altogether just to see what would break and defconfig, defconfig + CONFIG_LTO_CLANG_THIN=y, and allmodconfig all continue to build.

Sorry, got ahead of myself there and forgot to include the diff:

arch/arm64/include/asm/thread_info.h +0 -2

index f1bf6f6243ac..6da41eaa64bb 100644
@@ -8,8 +8,6 @@
 #ifndef __ASM_THREAD_INFO_H
 #define __ASM_THREAD_INFO_H
 
-#include <linux/compiler.h>
-
 #ifndef __ASSEMBLY__
 
 struct task_struct;

Paul E. McKenney

2022-01-15 00:42 UTC #56 lore raw