diff mbox series

[net-next,4/7] mlxsw: spectrum_router: FIB: Use tracker helpers to hold & put netdevices

Message ID 5221a92e751c40447c55959f622267ccc999ed04.1690471774.git.petrm@nvidia.com (mailing list archive)
State Accepted
Commit deeaa3716f4fa2dd1722de8e1b203217e7dd677f
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, 30 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 FIB events.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 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 57f0faac836c..0744497f2762 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -7547,6 +7547,7 @@  struct mlxsw_sp_fib6_event_work {
 
 struct mlxsw_sp_fib_event_work {
 	struct work_struct work;
+	netdevice_tracker dev_tracker;
 	union {
 		struct mlxsw_sp_fib6_event_work fib6_work;
 		struct fib_entry_notifier_info fen_info;
@@ -7720,12 +7721,12 @@  static void mlxsw_sp_router_fibmr_event_work(struct work_struct *work)
 						    &fib_work->ven_info);
 		if (err)
 			dev_warn(mlxsw_sp->bus_info->dev, "MR VIF add failed.\n");
-		dev_put(fib_work->ven_info.dev);
+		netdev_put(fib_work->ven_info.dev, &fib_work->dev_tracker);
 		break;
 	case FIB_EVENT_VIF_DEL:
 		mlxsw_sp_router_fibmr_vif_del(mlxsw_sp,
 					      &fib_work->ven_info);
-		dev_put(fib_work->ven_info.dev);
+		netdev_put(fib_work->ven_info.dev, &fib_work->dev_tracker);
 		break;
 	}
 	mutex_unlock(&mlxsw_sp->router->lock);
@@ -7796,7 +7797,8 @@  mlxsw_sp_router_fibmr_event(struct mlxsw_sp_fib_event_work *fib_work,
 	case FIB_EVENT_VIF_ADD:
 	case FIB_EVENT_VIF_DEL:
 		memcpy(&fib_work->ven_info, info, sizeof(fib_work->ven_info));
-		dev_hold(fib_work->ven_info.dev);
+		netdev_hold(fib_work->ven_info.dev, &fib_work->dev_tracker,
+			    GFP_ATOMIC);
 		break;
 	}
 }