[PATCH v2 1/2] kasan: Archs don't check memmove if not support it.

Nick Hu
2019-10-02T06:17:28Z

Skip the memmove checking for those archs who don't support it.

Signed-off-by: Nick Hu <nickhu@andestech.com>
---
mm/kasan/common.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 6814d6d6a023..897f9520bab3 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -107,6 +107,7 @@ void *memset(void *addr, int c, size_t len)
return __memset(addr, c, len);
}

+#ifdef __HAVE_ARCH_MEMMOVE
#undef memmove
void *memmove(void *dest, const void *src, size_t len)
{
@@ -115,6 +116,7 @@ void *memmove(void *dest, const void *src, size_t len)

return __memmove(dest, src, len);
}
+#endif

#undef memcpy
void *memcpy(void *dest, const void *src, size_t len)
--
2.17.0