diff options
| author | David Lebrun <david.lebrun@uclouvain.be> | 2016-11-16 10:05:46 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-16 17:01:15 -0500 |
| commit | a23a8f5bc17e6209eefadcd1cb3d3e28a2cdf530 (patch) | |
| tree | 000bc1bfe0f3522169d571d5b8b8fe571261b45e | |
| parent | d331d30360d7d10c4150a5a6452bc8d9aeb5784f (diff) | |
lwtunnel: subtract tunnel headroom from mtu on output redirect
This patch changes the lwtunnel_headroom() function which is called
in ipv4_mtu() and ip6_mtu(), to also return the correct headroom
value when the lwtunnel state is OUTPUT_REDIRECT.
This patch enables e.g. SR-IPv6 encapsulations to work without
manually setting the route mtu.
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/lwtunnel.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h index 82e76fe1c1f7..d4c1c75b8862 100644 --- a/include/net/lwtunnel.h +++ b/include/net/lwtunnel.h @@ -94,7 +94,8 @@ static inline bool lwtunnel_xmit_redirect(struct lwtunnel_state *lwtstate) static inline unsigned int lwtunnel_headroom(struct lwtunnel_state *lwtstate, unsigned int mtu) { - if (lwtunnel_xmit_redirect(lwtstate) && lwtstate->headroom < mtu) + if ((lwtunnel_xmit_redirect(lwtstate) || + lwtunnel_output_redirect(lwtstate)) && lwtstate->headroom < mtu) return lwtstate->headroom; return 0; |