Commit-ID: 4ac86a6dcec1c3878de9747bf5a2aa4455be69e3 Gitweb: http://git.kernel.org/tip/4ac86a6dcec1c3878de9747bf5a2aa4455be69e3 Author: Andrey Ryabinin <[email protected]> AuthorDate: Tue, 29 Sep 2015 19:40:14 +0300 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 30 Sep 2015 09:29:53 +0200
x86, efi, kasan: Fix build failure on !KASAN && KMEMCHECK=y kernels With KMEMCHECK=y, KASAN=n we get this build failure: arch/x86/platform/efi/efi.c:673:3: error: implicit declaration of function ‘memcpy’ [-Werror=implicit-function-declaration] arch/x86/platform/efi/efi_64.c:139:2: error: implicit declaration of function ‘memcpy’ [-Werror=implicit-function-declaration] arch/x86/include/asm/desc.h:121:2: error: implicit declaration of function ‘memcpy’ [-Werror=implicit-function-declaration] Don't #undef memcpy if KASAN=n. Reported-by: Ingo Molnar <[email protected]> Reported-by: Sedat Dilek <[email protected]> Signed-off-by: Andrey Ryabinin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Fixes: 769a8089c1fd ("x86, efi, kasan: #undef memset/memcpy/memmove per arch") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/include/asm/efi.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index ab5f1d4..ae68be9 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -86,6 +86,7 @@ extern u64 asmlinkage efi_call(void *fp, ...); extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size, u32 type, u64 attribute); +#ifdef CONFIG_KASAN /* * CONFIG_KASAN may redefine memset to __memset. __memset function is present * only in kernel binary. Since the EFI stub linked into a separate binary it @@ -95,6 +96,7 @@ extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size, #undef memcpy #undef memset #undef memmove +#endif #endif /* CONFIG_X86_32 */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
