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From: Nikolay Aleksandrov <razor@blackwall.org>
To: netdev@vger.kernel.org
Cc: idosch@nvidia.com, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
	bridge@lists.linux.dev, Nikolay Aleksandrov <razor@blackwall.org>
Subject: [PATCH net] net: bridge: vlan: fix inverted default vlan notification
Date: Fri, 14 Aug 2026 17:16:40 +0300	[thread overview]
Message-ID: <20260814141640.64958-1-razor@blackwall.org> (raw)

A notification should be emitted only when the vlan delete was successful
and not otherwise. The proper check is if br/nbp_vlan_delete returned 0.

Fixes: f545923b4a6b ("net: bridge: vlan: notify on vlan add/delete/change flags")
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
---
Found this issue while preparing some vlan code cleanups.

 net/bridge/br_vlan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 31c1b2cf75d9..1e0e436629ec 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -1136,7 +1136,7 @@ int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
 		if (err)
 			goto out;
 
-		if (br_vlan_delete(br, old_pvid))
+		if (!br_vlan_delete(br, old_pvid))
 			br_vlan_notify(br, NULL, old_pvid, 0, RTM_DELVLAN);
 		br_vlan_notify(br, NULL, pvid, 0, RTM_NEWVLAN);
 		__set_bit(0, changed);
@@ -1158,7 +1158,7 @@ int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid,
 				   &vlchange, extack);
 		if (err)
 			goto err_port;
-		if (nbp_vlan_delete(p, old_pvid))
+		if (!nbp_vlan_delete(p, old_pvid))
 			br_vlan_notify(br, p, old_pvid, 0, RTM_DELVLAN);
 		br_vlan_notify(p->br, p, pvid, 0, RTM_NEWVLAN);
 		__set_bit(p->port_no, changed);
-- 
2.47.3


             reply	other threads:[~2026-08-14 14:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-14 14:16 Nikolay Aleksandrov [this message]
2026-08-16 11:02 ` [PATCH net] net: bridge: vlan: fix inverted default vlan notification Ido Schimmel
2026-08-18  1:30 ` patchwork-bot+netdevbpf

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