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sit: replace 68 with micro IPV4_MIN_MTU

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Use meaningfull micro IPV4_MIN_MTU

Signed-off-by: zhang kai <zhangkaiheb@126.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
zhang kai 2021-06-02 09:50:39 +08:00 committed by David S. Miller
parent 011ab4dffe
commit 7f0e869c4e
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/sit.c
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@ -970,7 +970,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
if (df) {
mtu = dst_mtu(&rt->dst) - t_hlen;
if (mtu < 68) {
if (mtu < IPV4_MIN_MTU) {
dev->stats.collisions++;
ip_rt_put(rt);
goto tx_error;