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net: fou: remove redundant code in gue_udp_recv

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Remove not useful protocol version check in gue_udp_recv since just
gue version 0 can hit that code. Moreover remove duplicated hdrlen
computation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lorenzo Bianconi 2019-04-09 12:03:07 +02:00 committed by David S. Miller
parent c9d52f2169
commit 526bb57a6a
1 changed files with 1 additions and 3 deletions
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4
net/ipv4/fou.c
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@ -170,9 +170,7 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
/* guehdr may change after pull */
guehdr = (struct guehdr *)&udp_hdr(skb)[1];
hdrlen = sizeof(struct guehdr) + optlen;
if (guehdr->version != 0 || validate_gue_flags(guehdr, optlen))
if (validate_gue_flags(guehdr, optlen))
goto drop;
hdrlen = sizeof(struct guehdr) + optlen;