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| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-04-04 23:26:29 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-04-04 23:53:13 +0300 |
| commit | 7d4914db8fda6d38d92b1b8a740bafbd6c6d89a1 (patch) | |
| tree | 42f94bb10d449e7fe58ebcbd06c724c74f6c61fd /arch/xtensa | |
| parent | 3a0e75adecc8da026a5befb2c5828d08c999373c (diff) | |
| download | 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>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/uaccess.h | 2 |
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 |