Unverified Commit 57ee58e3 authored Oct 28, 2019 by Nick Hu Committed by Palmer Dabbelt Jan 22, 2020

kasan: No KASAN's memmove check if archs don't have it.



If archs don't have memmove then the C implementation from lib/string.c is used,
and then it's instrumented by compiler. So there is no need to add KASAN's
memmove to manual checks.

Signed-off-by: Nick Hu <nickhu@andestech.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

parent def9d278

mm/kasan/common.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -110,6 +110,7 @@ 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)
		{
		@@ -118,6 +119,7 @@ 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)

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