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net: use skb_is_gso_sctp() instead of open-coding

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As well as the basic conversion, I noticed that a lot of the
SCTP code checks gso_type without first checking skb_is_gso()
so I have added that where appropriate.

Also, document the helper.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Axtens
2018-03-09 14:06:09 +11:00
committed by David S. Miller
parent ca0edb131b
commit 1dd27cde30
6 changed files with 12 additions and 9 deletions
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2
net/core/skbuff.c
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@@ -4904,7 +4904,7 @@ static unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
thlen += inner_tcp_hdrlen(skb);
} else if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))) {
thlen = tcp_hdrlen(skb);
} else if (unlikely(shinfo->gso_type & SKB_GSO_SCTP)) {
} else if (unlikely(skb_is_gso_sctp(skb))) {
thlen = sizeof(struct sctphdr);
}
/* UFO sets gso_size to the size of the fragmentation