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authorDavid S. Miller <davem@davemloft.net>2018-01-09 10:37:00 -0500
committerDavid S. Miller <davem@davemloft.net>2018-01-09 10:37:00 -0500
commita0ce093180f2bbb832b3f5583adc640ad67ea568 (patch)
tree62c9aca5be3566ea4810e4584a02870de8b953f8 /net/ipv6/ip6_tunnel.c
parentf4803f1b73f877a571be4c8e531dfcf190acc691 (diff)
parentef7f8cec80a0ba7bd00ece46844c8994117dc910 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv6/ip6_tunnel.c')
-rw-r--r--net/ipv6/ip6_tunnel.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 8a4610e84e58..8071f42cd8a0 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1077,10 +1077,11 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
neigh_release(neigh);
}
- } else if (!(t->parms.flags &
- (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) {
- /* enable the cache only only if the routing decision does
- * not depend on the current inner header value
+ } else if (t->parms.proto != 0 && !(t->parms.flags &
+ (IP6_TNL_F_USE_ORIG_TCLASS |
+ IP6_TNL_F_USE_ORIG_FWMARK))) {
+ /* enable the cache only if neither the outer protocol nor the
+ * routing decision depends on the current inner header value
*/
use_cache = true;
}
@@ -1679,11 +1680,11 @@ int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
{
struct ip6_tnl *tnl = netdev_priv(dev);
- if (tnl->parms.proto == IPPROTO_IPIP) {
- if (new_mtu < ETH_MIN_MTU)
+ if (tnl->parms.proto == IPPROTO_IPV6) {
+ if (new_mtu < IPV6_MIN_MTU)
return -EINVAL;
} else {
- if (new_mtu < IPV6_MIN_MTU)
+ if (new_mtu < ETH_MIN_MTU)
return -EINVAL;
}
if (new_mtu > 0xFFF8 - dev->hard_header_len)