Messages in this thread Patch in this message | | | From | Al Viro <> | Subject | [RFC][PATCH 05/14] ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user() | Date | Fri, 27 Mar 2020 23:31:08 +0000 |
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From: Al Viro <viro@zeniv.linux.org.uk>
Just inline the call and use memcpy() instead of __copy_from_user() and note that the tail is precisely ia64 csum_partial().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- arch/ia64/lib/csum_partial_copy.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/ia64/lib/csum_partial_copy.c b/arch/ia64/lib/csum_partial_copy.c index bf9396b1ed32..9ab570d0f756 100644 --- a/arch/ia64/lib/csum_partial_copy.c +++ b/arch/ia64/lib/csum_partial_copy.c @@ -134,8 +134,8 @@ EXPORT_SYMBOL(csum_partial_copy_from_user); __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) { - return csum_partial_copy_from_user((__force const void __user *)src, - dst, len, sum, NULL); + memcpy(dst, src, len); + return csum_partial(dst, len, sum); } EXPORT_SYMBOL(csum_partial_copy_nocheck); -- 2.11.0
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