From: Al Viro Date: Sun, 16 Feb 2020 20:10:33 +0000 (-0500) Subject: ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user() X-Git-Tag: v5.8-rc1~210^2~10 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=cc03f19cfd45f44a75f0445c5be0073bbd3dda1c;p=linux.git ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user() 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 --- 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);