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| author |   Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2018-05-31 10:59:33 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-06-01 13:56:30 -0400 |
| commit | f7ff1fde9441b4fcc8ffb6e66e6e5a00d008937e (patch) | |
| tree | 9b7dc697f33e0231c1b64ac3c65f3de76deffd34 /net/ipv6/sit.c | |
| parent | ip_tunnel: restore binding to ifaces with a large mtu (diff) | |
| download | linux-dev-f7ff1fde9441b4fcc8ffb6e66e6e5a00d008937e.tar.xz linux-dev-f7ff1fde9441b4fcc8ffb6e66e6e5a00d008937e.zip | |
ip6_tunnel: remove magic mtu value 0xFFF8
I don't know where this value comes from (probably a copy and paste and
paste and paste ...).
Let's use standard values which are a bit greater.
Link: https://git.kernel.org/pub/scm/linux/kernel/git/davem/netdev-vger-cvs.git/commit/?id=e5afd356a411a
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/sit.c')
| -rw-r--r-- | net/ipv6/sit.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 2afce37a7177..e9400ffa7875 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -1371,7 +1371,7 @@ static void ipip6_tunnel_setup(struct net_device *dev) dev->hard_header_len = LL_MAX_HEADER + t_hlen; dev->mtu = ETH_DATA_LEN - t_hlen; dev->min_mtu = IPV6_MIN_MTU; - dev->max_mtu = 0xFFF8 - t_hlen; + dev->max_mtu = IP6_MAX_MTU - t_hlen; dev->flags = IFF_NOARP; netif_keep_dst(dev); dev->addr_len = 4; @@ -1583,7 +1583,8 @@ static int ipip6_newlink(struct net *src_net, struct net_device *dev, if (tb[IFLA_MTU]) { u32 mtu = nla_get_u32(tb[IFLA_MTU]); - if (mtu >= IPV6_MIN_MTU && mtu <= 0xFFF8 - dev->hard_header_len) + if (mtu >= IPV6_MIN_MTU && + mtu <= IP6_MAX_MTU - dev->hard_header_len) dev->mtu = mtu; } |