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authorStephen Suryaputra <ssuryaextr@gmail.com>2019-05-06 15:00:01 -0400
committerDavid S. Miller <davem@davemloft.net>2019-05-07 12:19:19 -0700
commitff6ab32bd4e073976e4d8797b4d514a172cfe6cb (patch)
tree0bc9badb4752b52b2988bc64ea8793f140ca0b06 /net/ipv6/sit.c
parentnet: dsa: Fix error cleanup path in dsa_init_module (diff)
downloadlinux-dev-ff6ab32bd4e073976e4d8797b4d514a172cfe6cb.tar.xz
linux-dev-ff6ab32bd4e073976e4d8797b4d514a172cfe6cb.zip
vrf: sit mtu should not be updated when vrf netdev is the link
VRF netdev mtu isn't typically set and have an mtu of 65536. When the link of a tunnel is set, the tunnel mtu is changed from 1480 to the link mtu minus tunnel header. In the case of VRF netdev is the link, then the tunnel mtu becomes 65516. So, fix it by not setting the tunnel mtu in this case. Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/sit.c')
-rw-r--r--net/ipv6/sit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index b2109b74857d..971d60bf9640 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1084,7 +1084,7 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
if (!tdev && tunnel->parms.link)
tdev = __dev_get_by_index(tunnel->net, tunnel->parms.link);
- if (tdev) {
+ if (tdev && !netif_is_l3_master(tdev)) {
int t_hlen = tunnel->hlen + sizeof(struct iphdr);
dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);