From 7d4914db8fda6d38d92b1b8a740bafbd6c6d89a1 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Tue, 4 Apr 2017 13:26:29 -0700 Subject: [PATCH] xtensa: fix prefetch in the raw_copy_to_user 'from' is the input buffer, it should be prefetched with prefetch, not prefetchw. Tested-by: Max Filippov Signed-off-by: Max Filippov Signed-off-by: Al Viro --- arch/xtensa/include/asm/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h index 8e93ed8ad1fe..2e7bac0d4b2c 100644 --- a/arch/xtensa/include/asm/uaccess.h +++ b/arch/xtensa/include/asm/uaccess.h @@ -245,7 +245,7 @@ raw_copy_from_user(void *to, const void __user *from, unsigned long n) static inline unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n) { - prefetchw(from); + prefetch(from); return __xtensa_copy_user((__force void *)to, from, n); } #define INLINE_COPY_FROM_USER