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| author | Jakub Kicinski <kuba@kernel.org> | 2026-06-03 04:28:32 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-05 00:04:55 +0300 |
| commit | b8dfa196cb978815543a36bbdd077f4a161e160d (patch) | |
| tree | 9996b1572bc2f89a3ad7003f1b5c44be6424a74e | |
| parent | 1d3964e29e53b02a7c61ed6d6e4aeccba3275ebc (diff) | |
| download | linux-b8dfa196cb978815543a36bbdd077f4a161e160d.tar.xz | |
net: document NETDEV_CHANGENAME as ops locked
NETDEV_CHANGENAME is only emitted from netif_change_name().
netif_change_name() has two callers both of which hold netdev_lock_ops()
around the call site:
- dev_change_name()
- do_setlink()
Document NETDEV_CHANGENAME as always ops locked.
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260603012840.2254293-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | Documentation/networking/netdevices.rst | 1 | ||||
| -rw-r--r-- | net/core/lock_debug.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/networking/netdevices.rst b/Documentation/networking/netdevices.rst index 60492d4df2ee..8fc96975b3bd 100644 --- a/Documentation/networking/netdevices.rst +++ b/Documentation/networking/netdevices.rst @@ -415,6 +415,7 @@ The following netdev notifiers are always run under the instance lock: For devices with locked ops, currently only the following notifiers are running under the lock: * ``NETDEV_CHANGE`` +* ``NETDEV_CHANGENAME`` * ``NETDEV_REGISTER`` * ``NETDEV_UP`` diff --git a/net/core/lock_debug.c b/net/core/lock_debug.c index 14fd8fcdcd56..8a81c5430705 100644 --- a/net/core/lock_debug.c +++ b/net/core/lock_debug.c @@ -65,6 +65,7 @@ int netdev_debug_event(struct notifier_block *nb, unsigned long event, break; case NETDEV_CHANGENAME: + netdev_assert_locked_ops(dev); ASSERT_RTNL_NET(net); break; } |