Skip to contentSkip to conversation

xtensa: use CONFIG_USE_OF instead of CONFIG_OF

PATCH In review Max Filippov 2 participants 2 messages Nov 29, 2021

Subsystems (2)
Stable branch Tensilica Xtensa port (xtensa)
lore
Share & tools
lore

Max Filippov

author maintainer
#0 lore raw

PATCH 1/1 xtensa: use CONFIG_USE_OF instead of CONFIG_OF

From: Randy Dunlap <[email protected]>

commit d67ed2510d28a1eb33171010d35cf52178cfcbdd upstream.

CONFIG_OF can be set by a randconfig or by a user -- without setting the early flattree option (OF_EARLY_FLATTREE). This causes build errors. However, if randconfig or a user sets USE_OF in the Xtensa config, the right kconfig symbols are set to fix the build.

Fixes these build errors:

../arch/xtensa/kernel/setup.c:67:19: error: ‘__dtb_start’ undeclared here (not in a function); did you mean ‘dtb_start’?

   67 | void *dtb_start = __dtb_start;
      |                   ^~~~~~~~~~~

../arch/xtensa/kernel/setup.c: In function 'xtensa_dt_io_area':
../arch/xtensa/kernel/setup.c:201:14: error: implicit declaration of function 'of_flat_dt_is_compatible'; did you mean 'of_machine_is_compatible'? [-Werror=implicit-function-declaration]
201 | if (!of_flat_dt_is_compatible(node, "simple-bus"))
../arch/xtensa/kernel/setup.c:204:18: error: implicit declaration of function 'of_get_flat_dt_prop' [-Werror=implicit-function-declaration]
204 | ranges = of_get_flat_dt_prop(node, "ranges", &len);
../arch/xtensa/kernel/setup.c:204:16: error: assignment to 'const __be32 *' {aka 'const unsigned int *'} from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
204 | ranges = of_get_flat_dt_prop(node, "ranges", &len);
| ^
../arch/xtensa/kernel/setup.c: In function 'early_init_devtree':
../arch/xtensa/kernel/setup.c:228:9: error: implicit declaration of function 'early_init_dt_scan'; did you mean 'early_init_devtree'? [-Werror=implicit-function-declaration]
228 | early_init_dt_scan(params);
../arch/xtensa/kernel/setup.c:229:9: error: implicit declaration of function 'of_scan_flat_dt' [-Werror=implicit-function-declaration]
229 | of_scan_flat_dt(xtensa_dt_io_area, NULL);

xtensa-elf-ld: arch/xtensa/mm/mmu.o:(.text+0x0): undefined reference to `xtensa_kio_paddr'

Fixes da844a81779e ("xtensa: add device trees support")
Fixes 6cb971114f63 ("xtensa: remap io area defined in device tree")
Signed-off-by Randy Dunlap <[email protected]>
Signed-off-by Max Filippov <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 arch/xtensa/include/asm/vectors.h |  2 +-
 arch/xtensa/kernel/setup.c        | 12 ++++++------
 arch/xtensa/mm/mmu.c              |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)
arch/xtensa/include/asm/vectors.h +1 -1
index 7111280c8842..2d3e0cca9ba0 100644
@@ -31,7 +31,7 @@
 #endif
 #define XCHAL_KIO_SIZE			0x10000000
 
-#if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_OF)
+#if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_USE_OF)
 #define XCHAL_KIO_PADDR			xtensa_get_kio_paddr()
 #ifndef __ASSEMBLY__
 extern unsigned long xtensa_kio_paddr;
arch/xtensa/kernel/setup.c +6 -6
index 6a0167ac803c..901990b8296c 100644
@@ -65,7 +65,7 @@ int initrd_is_mapped = 0;
 extern int initrd_below_start_ok;
 #endif
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 void *dtb_start = __dtb_start;
 #endif
 

@@ -127,7 +127,7 @@ __tagtable(BP_TAG_INITRD, parse_tag_initrd);
 
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 
 static int __init parse_tag_fdt(const bp_tag_t *tag)
 {

@@ -137,7 +137,7 @@ static int __init parse_tag_fdt(const bp_tag_t *tag)
 
 __tagtable(BP_TAG_FDT, parse_tag_fdt);
 
-#endif /* CONFIG_OF */
+#endif /* CONFIG_USE_OF */
 
 static int __init parse_tag_cmdline(const bp_tag_t* tag)
 {

@@ -185,7 +185,7 @@ static int __init parse_bootparam(const bp_tag_t *tag)
 }
 #endif
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 
 #if !XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY
 unsigned long xtensa_kio_paddr = XCHAL_KIO_DEFAULT_PADDR;

@@ -234,7 +234,7 @@ void __init early_init_devtree(void *params)
 		strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 }
 
-#endif /* CONFIG_OF */
+#endif /* CONFIG_USE_OF */
 
 /*
  * Initialize architecture. (Early stage)

@@ -255,7 +255,7 @@ void __init init_arch(bp_tag_t *bp_start)
 	if (bp_start)
 		parse_bootparam(bp_start);
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 	early_init_devtree(dtb_start);
 #endif
arch/xtensa/mm/mmu.c +1 -1
index 9d1ecfc53670..470843188f2f 100644
@@ -98,7 +98,7 @@ void init_mmu(void)
 
 void init_kio(void)
 {
-#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_OF)
+#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_USE_OF)
 	/*
 	 * Update the IO area mapping in case xtensa_kio_paddr has changed
 	 */
Signature · 1 line
2.20.1
maintainer
#1 lore raw
Quoted 35 lines · Max Filippov

From: Randy Dunlap <[email protected]>

commit d67ed2510d28a1eb33171010d35cf52178cfcbdd upstream.

CONFIG_OF can be set by a randconfig or by a user -- without setting the early flattree option (OF_EARLY_FLATTREE). This causes build errors. However, if randconfig or a user sets USE_OF in the Xtensa config, the right kconfig symbols are set to fix the build.

Fixes these build errors:

../arch/xtensa/kernel/setup.c:67:19: error: ‘__dtb_start’ undeclared here (not in a function); did you mean ‘dtb_start’?

   67 | void *dtb_start = __dtb_start;
      |                   ^~~~~~~~~~~

../arch/xtensa/kernel/setup.c: In function 'xtensa_dt_io_area':
../arch/xtensa/kernel/setup.c:201:14: error: implicit declaration of function 'of_flat_dt_is_compatible'; did you mean 'of_machine_is_compatible'? [-Werror=implicit-function-declaration]
201 | if (!of_flat_dt_is_compatible(node, "simple-bus"))
../arch/xtensa/kernel/setup.c:204:18: error: implicit declaration of function 'of_get_flat_dt_prop' [-Werror=implicit-function-declaration]
204 | ranges = of_get_flat_dt_prop(node, "ranges", &len);
../arch/xtensa/kernel/setup.c:204:16: error: assignment to 'const __be32 *' {aka 'const unsigned int *'} from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
204 | ranges = of_get_flat_dt_prop(node, "ranges", &len);
| ^
../arch/xtensa/kernel/setup.c: In function 'early_init_devtree':
../arch/xtensa/kernel/setup.c:228:9: error: implicit declaration of function 'early_init_dt_scan'; did you mean 'early_init_devtree'? [-Werror=implicit-function-declaration]
228 | early_init_dt_scan(params);
../arch/xtensa/kernel/setup.c:229:9: error: implicit declaration of function 'of_scan_flat_dt' [-Werror=implicit-function-declaration]
229 | of_scan_flat_dt(xtensa_dt_io_area, NULL);

xtensa-elf-ld: arch/xtensa/mm/mmu.o:(.text+0x0): undefined reference to `xtensa_kio_paddr'

Fixes da844a81779e ("xtensa: add device trees support")
Fixes 6cb971114f63 ("xtensa: remap io area defined in device tree")
Signed-off-by Randy Dunlap <[email protected]>
Signed-off-by Max Filippov <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
Quoted 5 lines
---
 arch/xtensa/include/asm/vectors.h |  2 +-
 arch/xtensa/kernel/setup.c        | 12 ++++++------
 arch/xtensa/mm/mmu.c              |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

Thanks, now updated.

greg k-h