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From: Ivan Abramov <i.abramov@mt-integration.ru>
To: Alexander Aring <alex.aring@gmail.com>
CC: Ivan Abramov <i.abramov@mt-integration.ru>, Miquel Raynal
<miquel.raynal@bootlin.com>, Stefan Schmidt <stefan@datenfreihafen.org>,
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Horman <horms@kernel.org>, <linux-wpan@vger.kernel.org>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<lvc-project@linuxtesting.org>
Subject: [PATCH net v3 3/3] ieee802154: Remove WARN_ON() in
cfg802154_pernet_exit()
Date: Thu, 3 Apr 2025 13:19:34 +0300
Message-ID: <20250403101935.991385-4-i.abramov@mt-integration.ru>
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There's no need to call WARN_ON() in cfg802154_pernet_exit(), since
every point of failure in cfg802154_switch_netns() is covered with
WARN_ON(), so remove it.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Fixes: 66e5c2672cd1 ("ieee802154: add netns support")
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Ivan Abramov <i.abramov@mt-integration.ru>
---
v3: Add Reviewed-by tag.
v2: Make sure to commit against latest netdev/net.
net/ieee802154/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
index 987c633e2c54..c0b8712018a1 100644
--- a/net/ieee802154/core.c
+++ b/net/ieee802154/core.c
@@ -358,7 +358,7 @@ static void __net_exit cfg802154_pernet_exit(struct net=
*net)
rtnl_lock();
list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
if (net_eq(wpan_phy_net(&rdev->wpan_phy), net))
- WARN_ON(cfg802154_switch_netns(rdev, &init_net));
+ cfg802154_switch_netns(rdev, &init_net);
}
rtnl_unlock();
}
--=20
2.39.5