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tcp: Do not reload skb pointer after skb_gro_receive(). 

This is not necessary.  skb_gro_receive() will never change what
'head' points to.

In it's original implementation (see commit 71d93b39e5 ("net: Add
skb_gro_receive")), it did:

====================
+	*head = nskb;
+	nskb->next = p->next;
+	p->next = NULL;
====================

This sequence was removed in commit 58025e46ea ("net: gro: remove
obsolete code from skb_gro_receive()")

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Eric Dumazet <edumazet@google.com>
This commit is contained in:
David Miller 2018-06-11 18:00:13 -07:00 committed by David S. Miller
parent 0ca69d1399
commit 6892286e9c
1 changed files with 0 additions and 2 deletions
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2
net/ipv4/tcp_offload.c
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@ -268,8 +268,6 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
goto out_check_final;
}
p = *head;
th2 = tcp_hdr(p);
tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
out_check_final: