]> git.baikalelectronics.ru Git - kernel.git/commit
ip6_tunnel: fix ip6 tunnel lookup in collect_md mode
authorHaishuang Yan <yanhaishuang@cmss.chinamobile.com>
Tue, 12 Sep 2017 09:47:57 +0000 (17:47 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 13 Sep 2017 03:45:31 +0000 (20:45 -0700)
commitb8aae9c49705ed1cc2e91c643672a215416e5a74
treea77f82af47f4e9c9c8f16d20f050acbab9e17ebc
parent9b391dd989e0e8236ff4cac674c5478c32a41d04
ip6_tunnel: fix ip6 tunnel lookup in collect_md mode

In collect_md mode, if the tun dev is down, it still can call
__ip6_tnl_rcv to receive on packets, and the rx statistics increase
improperly.

When the md tunnel is down, it's not neccessary to increase RX drops
for the tunnel device, packets would be recieved on fallback tunnel,
and the RX drops on fallback device will be increased as expected.

Fixes: 14c27b7fecb6 ("ip6_tunnel: add collect_md mode to IPv6 tunnels")
Cc: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_tunnel.c