Subject: [net V2 05/10] net/mlx5: Release tunnel device after tc update skb

From: Saeed Mahameed <[email-masked]>
Date: Thu, 20 Apr 2023 18:50:52 -0700

From: Chris Mi <[email-masked]>

The cited commit causes a regression. Tunnel device is not released
after tc update skb if skb needs to be freed. The following error
message will be printed:

  unregister_netdevice: waiting for vxlan1 to become free. Usage count = 11

Fix it by releasing tunnel device if skb needs to be freed.

Fixes: 93a1ab2c545b ("net/mlx5: Refactor tc miss handling to a single function")
Signed-off-by: Chris Mi <[email-masked]>
Reviewed-by: Maor Dickman <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index 8f7452dc00ee..668fdee9cf05 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -715,5 +715,6 @@ void mlx5e_rep_tc_receive(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq,
 	return;
 
 free_skb:
+	dev_put(tc_priv.fwd_dev);
 	dev_kfree_skb_any(skb);
 }
-- 
2.39.2