4.14.325-rc1 review

This is the start of the stable review cycle for the 4.14.325 release. There are 2 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.

Responses should be made by Sat, 02 Sep 2023 11:08:22 +0000. Anything received after that time might be too late.

The whole patch series can be found in one patch at:

	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.325-rc1.gz

or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <[email protected]>

    Linux 4.14.325-rc1

Greg Kroah-Hartman <[email protected]>
Revert "ARM: ep93xx: fix missing-prototype warnings"

Greg Kroah-Hartman <[email protected]>
Revert "MIPS: Alchemy: fix dbdma2"

-------------

Diffstat:

 Makefile                            |  4 ++--
 arch/arm/mach-ep93xx/timer-ep93xx.c |  3 +--
 arch/mips/alchemy/common/dbdma.c    | 27 ++++++++++++---------------
 3 files changed, 15 insertions(+), 19 deletions(-)

4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <[email protected]>

This reverts commit 10130470bb0003b784f4656cc3ef2b9dc396ebdd which is commit 2d645604f69f3a772d58ead702f9a8e84ab2b342 upstream.

It breaks the build, so should be dropped.

---
 arch/mips/alchemy/common/dbdma.c |   27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

@@ -30,7 +30,6 @@
  *
  */
 
-#include <linux/dma-map-ops.h> /* for dma_default_coherent */
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>

@@ -624,18 +623,17 @@ u32 au1xxx_dbdma_put_source(u32 chanid,
 		dp->dscr_cmd0 &= ~DSCR_CMD0_IE;
 
 	/*
-	 * There is an erratum on certain Au1200/Au1550 revisions that could
-	 * result in "stale" data being DMA'ed. It has to do with the snoop
-	 * logic on the cache eviction buffer.  dma_default_coherent is set
-	 * to false on these parts.
+	 * There is an errata on the Au1200/Au1550 parts that could result
+	 * in "stale" data being DMA'ed. It has to do with the snoop logic on
+	 * the cache eviction buffer.  DMA_NONCOHERENT is on by default for
+	 * these parts. If it is fixed in the future, these dma_cache_inv will
+	 * just be nothing more than empty macros. See io.h.
 	 */
-	if (!dma_default_coherent)
-		dma_cache_wback_inv(KSEG0ADDR(buf), nbytes);
+	dma_cache_wback_inv((unsigned long)buf, nbytes);
 	dp->dscr_cmd0 |= DSCR_CMD0_V;	/* Let it rip */
 	wmb(); /* drain writebuffer */
 	dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
 	ctp->chan_ptr->ddma_dbell = 0;
-	wmb(); /* force doorbell write out to dma engine */
 
 	/* Get next descriptor pointer. */
 	ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));

@@ -687,18 +685,17 @@ u32 au1xxx_dbdma_put_dest(u32 chanid, dm
 			  dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1);
 #endif
 	/*
-	 * There is an erratum on certain Au1200/Au1550 revisions that could
-	 * result in "stale" data being DMA'ed. It has to do with the snoop
-	 * logic on the cache eviction buffer.  dma_default_coherent is set
-	 * to false on these parts.
+	 * There is an errata on the Au1200/Au1550 parts that could result in
+	 * "stale" data being DMA'ed. It has to do with the snoop logic on the
+	 * cache eviction buffer.  DMA_NONCOHERENT is on by default for these
+	 * parts. If it is fixed in the future, these dma_cache_inv will just
+	 * be nothing more than empty macros. See io.h.
 	 */
-	if (!dma_default_coherent)
-		dma_cache_inv(KSEG0ADDR(buf), nbytes);
+	dma_cache_inv((unsigned long)buf, nbytes);
 	dp->dscr_cmd0 |= DSCR_CMD0_V;	/* Let it rip */
 	wmb(); /* drain writebuffer */
 	dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
 	ctp->chan_ptr->ddma_dbell = 0;
-	wmb(); /* force doorbell write out to dma engine */
 
 	/* Get next descriptor pointer. */
 	ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));

4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <[email protected]>

This reverts commit 2e50d55578b05664b11538f0a280541c100caefe which is commit 419013740ea1e4343d8ade535d999f59fa28e460 upstream.

It breaks the build, so should be reverted.

---
 arch/arm/mach-ep93xx/timer-ep93xx.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -9,7 +9,6 @@
 #include <linux/io.h>
 #include <asm/mach/time.h>
 #include "soc.h"
-#include "platform.h"
 
 /*************************************************************************
  * Timer handling for EP93xx

@@ -61,7 +60,7 @@ static u64 notrace ep93xx_read_sched_clo
 	return ret;
 }
 
-static u64 ep93xx_clocksource_read(struct clocksource *c)
+u64 ep93xx_clocksource_read(struct clocksource *c)
 {
 	u64 ret;
 

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

## Build
* kernel: 4.14.325-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-4.14.y
* git commit: 9467395c02c9be2630558247a1ac6c7da38f81d9
* git describe: v4.14.324-3-g9467395c02c9
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-4.14.y/build/v4.14.324-3-g9467395c02c9

## Test Regressions (compared to v4.14.324)

## Metric Regressions (compared to v4.14.324)

## Test Fixes (compared to v4.14.324)

## Metric Fixes (compared to v4.14.324)

## Test result summary
total: 51160, pass: 43042, fail: 1506, skip: 6573, xfail: 39

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 107 total, 100 passed, 7 failed
* arm64: 35 total, 31 passed, 4 failed
* i386: 21 total, 18 passed, 3 failed
* mips: 21 total, 21 passed, 0 failed
* parisc: 3 total, 0 passed, 3 failed
* powerpc: 8 total, 7 passed, 1 failed
* s390: 6 total, 5 passed, 1 failed
* sh: 12 total, 12 passed, 0 failed
* sparc: 6 total, 6 passed, 0 failed
* x86_64: 27 total, 23 passed, 4 failed

## Test suites summary
* boot
* kselftest-android
* kselftest-arm64
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers-dma-buf
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-filesystems-binderfs
* kselftest-filesystems-epoll
* kselftest-firmware
* kselftest-fpu
* kselftest-ftrace
* kselftest-futex
* kselftest-gpio
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kexec
* kselftest-kvm
* kselftest-lib
* kselftest-membarrier
* kselftest-memfd
* kselftest-memory-hotplug
* kselftest-mincore
* kselftest-mount
* kselftest-mqueue
* kselftest-net
* kselftest-net-forwarding
* kselftest-net-mptcp
* kselftest-netfilter
* kselftest-nsfs
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-tc-testing
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-user_events
* kselftest-vDSO
* kselftest-vm
* kselftest-watchdog
* kselftest-zram
* kunit
* log-parser-boot
* log-parser-test
* ltp-cap_bounds
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-crypto
* ltp-cve
* ltp-fcntl-locktests
* ltp-filecaps
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-fsx
* ltp-hugetlb
* ltp-io
* ltp-ipc
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-pty
* ltp-sched
* ltp-securebits
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* rcutorture

--
Linaro LKFT
https://lkft.linaro.org

Build results:

	total: 139 pass: 139 fail: 0
Qemu test results:
	total: 431 pass: 431 fail: 0

Guenter

All tests passing for Tegra ...

Test results for stable-v4.14:

    8 builds:	8 pass, 0 fail
    16 boots:	16 pass, 0 fail
    32 tests:	32 pass, 0 fail

Linux version: 4.14.325-rc1-g9467395c02c9
Boards tested: tegra124-jetson-tk1, tegra20-ventana,

                tegra210-p2371-2180, tegra30-cardhu-a04

Jon