linux-kernel - [PATCH -next] net/mlx5: Remove NULL check before dev

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Date:   Wed, 22 Feb 2023 10:29:44 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     kuba@...nel.org
Cc:     davem@...emloft.net, saeedm@...dia.com, leon@...nel.org,
        edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yang Li <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] net/mlx5: Remove NULL check before dev_{put, hold}

The call netdev_{put, hold} of dev_{put, hold} will check NULL,
so there is no need to check before using dev_{put, hold},
remove it to silence the warning：

./drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c:714:2-9: WARNING: NULL check before dev_{put, hold} functions is not needed.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4174
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

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 e24b46953542..8f7452dc00ee 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -710,8 +710,7 @@ void mlx5e_rep_tc_receive(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq,
 	else
 		napi_gro_receive(rq->cq.napi, skb);
 
-	if (tc_priv.fwd_dev)
-		dev_put(tc_priv.fwd_dev);
+	dev_put(tc_priv.fwd_dev);
 
 	return;
 
-- 
2.20.1.7.g153144c