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Date: Tue, 8 Sep 2020 10:17:13 +0300 From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com> To: netdev@...r.kernel.org Cc: kuba@...nel.org, davem@...emloft.net, roopa@...dia.com, Nikolay Aleksandrov <nikolay@...ulusnetworks.com>, Stephen Rothwell <sfr@...b.auug.org.au> Subject: [PATCH net-next] net: bridge: mcast: fix unused br var when lockdep isn't defined Stephen reported the following warning: net/bridge/br_multicast.c: In function 'br_multicast_find_port': net/bridge/br_multicast.c:1818:21: warning: unused variable 'br' [-Wunused-variable] 1818 | struct net_bridge *br = mp->br; | ^~ It happens due to bridge's mlock_dereference() when lockdep isn't defined. Silence the warning by annotating the variable as __maybe_unused. Fixes: 0436862e417e ("net: bridge: mcast: support for IGMPv3/MLDv2 ALLOW_NEW_SOURCES report") Reported-by: Stephen Rothwell <sfr@...b.auug.org.au> Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com> --- net/bridge/br_multicast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index b83f11228948..33adf44ef7ec 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1814,8 +1814,8 @@ br_multicast_find_port(struct net_bridge_mdb_entry *mp, struct net_bridge_port *p, const unsigned char *src) { + struct net_bridge *br __maybe_unused = mp->br; struct net_bridge_port_group *pg; - struct net_bridge *br = mp->br; for (pg = mlock_dereference(mp->ports, br); pg; -- 2.25.4
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