[PATCH 08/14] net-sysfs: use check_net()
From: Christian Brauner <brauner@kernel.org>
Date: 2025-09-18 10:12:32
Also in:
cgroups, linux-fsdevel, lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Don't directly acess the namespace count. There's even a dedicated helper for this. Signed-off-by: Christian Brauner <brauner@kernel.org> --- net/core/net-sysfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index c28cd6665444..3c2dc4c5e683 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c@@ -1328,7 +1328,7 @@ net_rx_queue_update_kobjects(struct net_device *dev, int old_num, int new_num) struct netdev_rx_queue *queue = &dev->_rx[i]; struct kobject *kobj = &queue->kobj; - if (!refcount_read(&dev_net(dev)->ns.count)) + if (!check_net(dev_net(dev))) kobj->uevent_suppress = 1; if (dev->sysfs_rx_queue_group) sysfs_remove_group(kobj, dev->sysfs_rx_queue_group);
@@ -2061,7 +2061,7 @@ netdev_queue_update_kobjects(struct net_device *dev, int old_num, int new_num) while (--i >= new_num) { struct netdev_queue *queue = dev->_tx + i; - if (!refcount_read(&dev_net(dev)->ns.count)) + if (!check_net(dev_net(dev))) queue->kobj.uevent_suppress = 1; if (netdev_uses_bql(dev))
@@ -2315,7 +2315,7 @@ void netdev_unregister_kobject(struct net_device *ndev) { struct device *dev = &ndev->dev; - if (!refcount_read(&dev_net(ndev)->ns.count)) + if (!check_net(dev_net(ndev))) dev_set_uevent_suppress(dev, 1); kobject_get(&dev->kobj);
--
2.47.3