diff mbox series

[net-next,7/7] mlxsw: spectrum_router: IPv6 events: Use tracker helpers to hold & put netdevices

Message ID f0af6ad4722b4ca6e598fd4fda8311a3041651ec.1690471775.git.petrm@nvidia.com (mailing list archive)
State Accepted
Commit cb2116204169b24fbb667c823e8fced069d5e561
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: Avoid non-tracker helpers when holding and putting netdevices | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1342 this patch: 1342
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 1365 this patch: 1365
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1365 this patch: 1365
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 23 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Petr Machata July 27, 2023, 3:59 p.m. UTC 
Using the tracking helpers makes it easier to debug netdevice refcount
imbalances when CONFIG_NET_DEV_REFCNT_TRACKER is enabled.

Convert dev_hold() / dev_put() to netdev_hold() / netdev_put() in the
router code that deals with IPv6 address events.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 59d12cf45939..debd2c466f11 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -9333,6 +9333,7 @@  struct mlxsw_sp_inet6addr_event_work {
 	struct work_struct work;
 	struct mlxsw_sp *mlxsw_sp;
 	struct net_device *dev;
+	netdevice_tracker dev_tracker;
 	unsigned long event;
 };
 
@@ -9356,7 +9357,7 @@  static void mlxsw_sp_inet6addr_event_work(struct work_struct *work)
 out:
 	mutex_unlock(&mlxsw_sp->router->lock);
 	rtnl_unlock();
-	dev_put(dev);
+	netdev_put(dev, &inet6addr_work->dev_tracker);
 	kfree(inet6addr_work);
 }
 
@@ -9382,7 +9383,7 @@  static int mlxsw_sp_inet6addr_event(struct notifier_block *nb,
 	inet6addr_work->mlxsw_sp = router->mlxsw_sp;
 	inet6addr_work->dev = dev;
 	inet6addr_work->event = event;
-	dev_hold(dev);
+	netdev_hold(dev, &inet6addr_work->dev_tracker, GFP_ATOMIC);
 	mlxsw_core_schedule_work(&inet6addr_work->work);
 
 	return NOTIFY_DONE;