Linux Ethernet Bridging - Jul 2015 - [Bridge] [PATCH net] bridge: mdb: allow the user to delete mdb entry if there's a querier

From: Satish Ashok <sashok at cumulusnetworks.com>

Until now when a querier was present static entries couldn't be deleted.
Fix this and allow the user to manipulate the mdb with or without a
querier.

Signed-off-by: Satish Ashok <sashok at cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
---
 net/bridge/br_mdb.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 60868c212679..c11cf2611db0 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -423,19 +423,12 @@ static int __br_mdb_del(struct net_bridge *br, struct
br_mdb_entry *entry)
 
 	memset(&ip, 0, sizeof(ip));
 	ip.proto = entry->addr.proto;
-	if (ip.proto == htons(ETH_P_IP)) {
-		if (timer_pending(&br->ip4_other_query.timer))
-			return -EBUSY;
-
+	if (ip.proto == htons(ETH_P_IP))
 		ip.u.ip4 = entry->addr.u.ip4;
 #if IS_ENABLED(CONFIG_IPV6)
-	} else {
-		if (timer_pending(&br->ip6_other_query.timer))
-			return -EBUSY;
-
+	else
 		ip.u.ip6 = entry->addr.u.ip6;
 #endif
-	}
 
 	spin_lock_bh(&br->multicast_lock);
 	mdb = mlock_dereference(br->mdb, br);
-- 
1.9.1

From: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
Date: Thu,  9 Jul 2015 04:12:45 -0700
> From: Satish Ashok <sashok at cumulusnetworks.com>
> 
> Until now when a querier was present static entries couldn't be
deleted.
> Fix this and allow the user to manipulate the mdb with or without a
> querier.
> 
> Signed-off-by: Satish Ashok <sashok at cumulusnetworks.com>
> Signed-off-by: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
Applied, thanks.