[ovs-dev] [RFC PATCH kernel 08/10] ip6_tunnel: do not update stats if no netdev given
Jiri Benc
jbenc at redhat.com
Thu May 14 18:10:50 UTC 2015
Other users of IPv6 tunneling (e.g. openvswitch) may not have a net_device
that represents the tunnel.
Signed-off-by: Jiri Benc <jbenc at redhat.com>
---
include/net/ip6_tunnel.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index b8529aa1dae7..c74916a09d53 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -76,12 +76,15 @@ int ip6_tnl_get_iflink(const struct net_device *dev);
static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
struct net_device *dev)
{
- struct net_device_stats *stats = &dev->stats;
+ struct net_device_stats *stats;
int pkt_len, err;
pkt_len = skb->len;
err = ip6_local_out_sk(sk, skb);
+ if (!dev)
+ return;
+ stats = &dev->stats;
if (net_xmit_eval(err) == 0) {
struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
u64_stats_update_begin(&tstats->syncp);
--
1.8.3.1
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