__memcpy3d is not available when CONFIG_FORTIFY_SOURCE is enabled,
leading to a link error on 32-bit kernels:
arch/x86/lib/memcpy_32.c: In function 'memcpy':
arch/x86/lib/memcpy_32.c:10:9: error: implicit declaration of function
'__memcpy3d'; did you mean '__memcpy'? [-Werror=implicit-function-declaration]
This uses the same #ifdef around the use of the function that
now protects the definition.
Fixes: mmotm ("include/linux/string.h: add the option of fortified string.h
functions")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
arch/x86/lib/memcpy_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index cad12634d6bd..2eab7d0bfedd 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -6,7 +6,7 @@
__visible void *memcpy(void *to, const void *from, size_t n)
{
-#ifdef CONFIG_X86_USE_3DNOW
+#if defined(CONFIG_X86_USE_3DNOW) && !defined(CONFIG_FORTIFY_SOURCE)
return __memcpy3d(to, from, n);
#else
return __memcpy(to, from, n);
--
2.9.0
