From a7eea416cb08a514f94c0ca5ff30c18783fab054 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 11 Jun 2015 09:15:15 -0700 Subject: [PATCH] tcp: reserve tcp_skb_mss() to tcp stack tcp_gso_segment() and tcp_gro_receive() are not strictly part of TCP stack. They should not assume tcp_skb_mss(skb) is in fact skb_shinfo(skb)->gso_size. This will allow us to change tcp_skb_mss() in following patches. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_offload.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index 3f7c2fca5431..9864a2dbadce 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -77,7 +77,7 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb, oldlen = (u16)~skb->len; __skb_pull(skb, thlen); - mss = tcp_skb_mss(skb); + mss = skb_shinfo(skb)->gso_size; if (unlikely(skb->len <= mss)) goto out; @@ -242,7 +242,7 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb) flush |= *(u32 *)((u8 *)th + i) ^ *(u32 *)((u8 *)th2 + i); - mss = tcp_skb_mss(p); + mss = skb_shinfo(p)->gso_size; flush |= (len - 1) >= mss; flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);