From: Daniel Borkmann Date: Mon, 4 Nov 2013 16:10:25 +0000 (+0100) Subject: net: checksum: fix warning in skb_checksum X-Git-Tag: v3.13-rc1~105^2~72 X-Git-Url: http://pileus.org/git/?a=commitdiff_plain;h=cea80ea8d2a4c646f240a8fd6ece5c8e7bc969d3;p=~andy%2Flinux net: checksum: fix warning in skb_checksum This patch fixes a build warning in skb_checksum() by wrapping the csum_partial() usage in skb_checksum(). The problem is that on a few architectures, csum_partial is used with prefix asmlinkage whereas on most architectures it's not. So fix this up generically as we did with csum_block_add_ext() to match the signature. Introduced by 2817a336d4d ("net: skb_checksum: allow custom update/combine for walking skb"). Reported-by: Fengguang Wu Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- diff --git a/include/net/checksum.h b/include/net/checksum.h index 15f33fde826..37a0e24adbe 100644 --- a/include/net/checksum.h +++ b/include/net/checksum.h @@ -98,6 +98,11 @@ static inline __wsum csum_unfold(__sum16 n) return (__force __wsum)n; } +static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum) +{ + return csum_partial(buff, len, sum); +} + #define CSUM_MANGLED_0 ((__force __sum16)0xffff) static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 31aab5376cb..e4115597b38 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2003,7 +2003,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset, int len, __wsum csum) { const struct skb_checksum_ops ops = { - .update = csum_partial, + .update = csum_partial_ext, .combine = csum_block_add_ext, };