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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2014-02-20 10:19:31 +0100
committerDavid S. Miller <davem@davemloft.net>2014-02-20 13:13:50 -0500
commitcf71d2bc0b8a473209d5c770ce560853bd720d14 (patch)
tree9ecc5d5a3f3c0bb44a5f82a238f427291efef702 /net/ipv4
parent6671b2240c54585d4afb5286a29f1569fe5e40a8 (diff)
downloadblackbird-op-linux-cf71d2bc0b8a473209d5c770ce560853bd720d14.tar.gz
blackbird-op-linux-cf71d2bc0b8a473209d5c770ce560853bd720d14.zip
sit: fix panic with route cache in ip tunnels
Bug introduced by commit 7d442fab0a67 ("ipv4: Cache dst in tunnels"). Because sit code does not call ip_tunnel_init(), the dst_cache was not initialized. CC: Tom Herbert <therbert@google.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/ip_tunnel.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 08f8cf99b3a2..78a89e61925d 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -93,13 +93,14 @@ static void tunnel_dst_reset(struct ip_tunnel *t)
tunnel_dst_set(t, NULL);
}
-static void tunnel_dst_reset_all(struct ip_tunnel *t)
+void ip_tunnel_dst_reset_all(struct ip_tunnel *t)
{
int i;
for_each_possible_cpu(i)
__tunnel_dst_set(per_cpu_ptr(t->dst_cache, i), NULL);
}
+EXPORT_SYMBOL(ip_tunnel_dst_reset_all);
static struct rtable *tunnel_rtable_get(struct ip_tunnel *t, u32 cookie)
{
@@ -713,7 +714,7 @@ static void ip_tunnel_update(struct ip_tunnel_net *itn,
if (set_mtu)
dev->mtu = mtu;
}
- tunnel_dst_reset_all(t);
+ ip_tunnel_dst_reset_all(t);
netdev_state_change(dev);
}
@@ -1042,7 +1043,7 @@ void ip_tunnel_uninit(struct net_device *dev)
if (itn->fb_tunnel_dev != dev)
ip_tunnel_del(netdev_priv(dev));
- tunnel_dst_reset_all(tunnel);
+ ip_tunnel_dst_reset_all(tunnel);
}
EXPORT_SYMBOL_GPL(ip_tunnel_uninit);
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