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vti4: Don't count header length twice.

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We currently count the size of LL_MAX_HEADER and struct iphdr
twice for vti4 devices, this leads to a wrong device mtu.
The size of LL_MAX_HEADER and struct iphdr is already counted in
ip_tunnel_bind_dev(), so don't do it again in vti_tunnel_init().

Fixes: b9959fd3 ("vti: switch to new ip tunnel code")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2014-04-16 09:01:03 +02:00
parent 5596732fa8
commit a32452366b
1 changed files with 0 additions and 1 deletions
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net/ipv4/ip_vti.c
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@ -349,7 +349,6 @@ static int vti_tunnel_init(struct net_device *dev)
memcpy(dev->broadcast, &iph->daddr, 4); memcpy(dev->broadcast, &iph->daddr, 4);
dev->type = ARPHRD_TUNNEL; dev->type = ARPHRD_TUNNEL;
dev->hard_header_len = LL_MAX_HEADER + sizeof(struct iphdr);
dev->mtu = ETH_DATA_LEN; dev->mtu = ETH_DATA_LEN;
dev->flags = IFF_NOARP; dev->flags = IFF_NOARP;
dev->iflink = 0; dev->iflink = 0;