diff options
| author |   Will Deacon <will.deacon@arm.com> | 2015-10-13 14:01:06 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2015-10-13 14:54:42 +0100 |
| commit | 83040123fde42ec532d3b632efb5f7f84024e61d (patch) | |
| tree | 668de0164f4db8ac50f426839770edd5139a8b51 /arch/arm64 | |
| parent | Documentation/features/KASAN: arm64 supports KASAN now (diff) | |
| download | linux-dev-83040123fde42ec532d3b632efb5f7f84024e61d.tar.xz linux-dev-83040123fde42ec532d3b632efb5f7f84024e61d.zip | |
arm64: kasan: fix issues reported by sparse
Sparse reports some new issues introduced by the kasan patches:
arch/arm64/mm/kasan_init.c:91:13: warning: no previous prototype for
'kasan_early_init' [-Wmissing-prototypes] void __init kasan_early_init(void)
^
arch/arm64/mm/kasan_init.c:91:13: warning: symbol 'kasan_early_init'
was not declared. Should it be static? [sparse]
This patch resolves the problem by adding a prototype for
kasan_early_init and marking the function as asmlinkage, since it's only
called from head.S.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/kasan.h | 2 | ||||
| -rw-r--r-- | arch/arm64/mm/kasan_init.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kasan.h b/arch/arm64/include/asm/kasan.h index 71dfe14acdca..2774fa384c47 100644 --- a/arch/arm64/include/asm/kasan.h +++ b/arch/arm64/include/asm/kasan.h @@ -5,6 +5,7 @@ #ifdef CONFIG_KASAN +#include <linux/linkage.h> #include <asm/memory.h> /* @@ -27,6 +28,7 @@ #define KASAN_SHADOW_OFFSET (KASAN_SHADOW_END - (1ULL << (64 - 3))) void kasan_init(void); +asmlinkage void kasan_early_init(void); #else static inline void kasan_init(void) { } diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c index b6a92f5dd568..cf038c7d9fa9 100644 --- a/arch/arm64/mm/kasan_init.c +++ b/arch/arm64/mm/kasan_init.c @@ -88,7 +88,7 @@ static void __init kasan_map_early_shadow(void) } while (pgd++, addr = next, addr != end); } -void __init kasan_early_init(void) +asmlinkage void __init kasan_early_init(void) { BUILD_BUG_ON(KASAN_SHADOW_OFFSET != KASAN_SHADOW_END - (1UL << 61)); BUILD_BUG_ON(!IS_ALIGNED(KASAN_SHADOW_START, PGDIR_SIZE)); |