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authorMarek Lindner <lindner_marek@yahoo.de>2011-12-07 18:02:50 +0800
committerMarek Lindner <lindner_marek@yahoo.de>2012-02-17 02:50:19 +0800
commit6e242f9037f8a82ce2608c20a5460b670b2d5ff4 (patch)
tree52cee5bbf5a80e8d7f218c537cb1982ca290ab20 /net/batman-adv
parenta04ccd5970ec11f0b320971051435d86d3233c92 (diff)
batman-adv: warn if added interface is part of a bridge
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/hard-interface.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index d3e0e32e51c6..68b667c1d85e 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -281,6 +281,14 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
if (!atomic_inc_not_zero(&hard_iface->refcount))
goto out;
+ /* hard-interface is part of a bridge */
+ if (hard_iface->net_dev->priv_flags & IFF_BRIDGE_PORT)
+ pr_err("You are about to enable batman-adv on '%s' which "
+ "already is part of a bridge. Unless you know exactly "
+ "what you are doing this is probably wrong and won't "
+ "work the way you think it would.\n",
+ hard_iface->net_dev->name);
+
soft_iface = dev_get_by_name(&init_net, iface_name);
if (!soft_iface) {