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| author | Eric Dumazet <edumazet@google.com> | 2022-02-07 10:41:07 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-02-08 20:23:20 -0800 |
| commit | b2309a71c1f2fc841feb184195b2e46b2e139bf4 (patch) | |
| tree | 1b4e35003f3dfba1d8ff091a88411c0c462634f6 /include/linux/netdevice.h | |
| parent | 99f5a5f2b94840032e85f7616ef13301a962b96a (diff) | |
| download | linux-b2309a71c1f2fc841feb184195b2e46b2e139bf4.tar.gz | |
net: add dev->dev_registered_tracker
Convert one dev_hold()/dev_put() pair in register_netdevice()
and unregister_netdevice_many() to dev_hold_track()
and dev_put_track().
This would allow to detect a rogue dev_put() a bit earlier.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220207184107.1401096-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 3fb6fb67ed77e7..5f6e2c0b0c9038 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1948,6 +1948,8 @@ enum netdev_ml_priv_type { * @dev_addr_shadow: Copy of @dev_addr to catch direct writes. * @linkwatch_dev_tracker: refcount tracker used by linkwatch. * @watchdog_dev_tracker: refcount tracker used by watchdog. + * @dev_registered_tracker: tracker for reference held while + * registered * * FIXME: cleanup struct net_device such that network protocol info * moves out. @@ -2282,6 +2284,7 @@ struct net_device { u8 dev_addr_shadow[MAX_ADDR_LEN]; netdevice_tracker linkwatch_dev_tracker; netdevice_tracker watchdog_dev_tracker; + netdevice_tracker dev_registered_tracker; }; #define to_net_dev(d) container_of(d, struct net_device, dev) |