From: Nicolas Dichtel Date: Fri, 11 Apr 2014 13:51:19 +0000 (+0200) Subject: vti: don't allow to add the same tunnel twice X-Git-Tag: v3.15-rc1~8^2^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d89dcdf80d88007647945a753821a06eb6cc5a5;p=pandora-kernel.git vti: don't allow to add the same tunnel twice Before the patch, it was possible to add two times the same tunnel: ip l a vti1 type vti remote 10.16.0.121 local 10.16.0.249 key 41 ip l a vti2 type vti remote 10.16.0.121 local 10.16.0.249 key 41 It was possible, because ip_tunnel_newlink() calls ip_tunnel_find() with the argument dev->type, which was set only later (when calling ndo_init handler in register_netdevice()). Let's set this type in the setup handler, which is called before newlink handler. Introduced by commit b9959fd3b0fa ("vti: switch to new ip tunnel code"). CC: Cong Wang CC: Steffen Klassert Signed-off-by: Nicolas Dichtel Signed-off-by: David S. Miller --- Reading git-diff-tree failed