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authorMax Filippov <jcmvbkbc@gmail.com>2017-04-04 13:26:29 -0700
committerAl Viro <viro@zeniv.linux.org.uk>2017-04-04 16:53:13 -0400
commit7d4914db8fda6d38d92b1b8a740bafbd6c6d89a1 (patch)
tree42f94bb10d449e7fe58ebcbd06c724c74f6c61fd
parent3a0e75adecc8da026a5befb2c5828d08c999373c (diff)
downloadlinux-7d4914db8fda6d38d92b1b8a740bafbd6c6d89a1.tar.gz
linux-7d4914db8fda6d38d92b1b8a740bafbd6c6d89a1.tar.xz
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 <jcmvbkbc@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--arch/xtensa/include/asm/uaccess.h2
1 files changed, 1 insertions, 1 deletions
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