linux-kernel - [PATCH V2 net-next 3/4] net: hns3: remove unnecessary MAC enable in app loopback

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Message-ID: <1590541157-6803-4-git-send-email-tanhuazhong@huawei.com>
Date:   Wed, 27 May 2020 08:59:16 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <linuxarm@...wei.com>, <kuba@...nel.org>,
        Yufeng Mo <moyufeng@...wei.com>,
        Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH V2 net-next 3/4] net: hns3: remove unnecessary MAC enable in app loopback

From: Yufeng Mo <moyufeng@...wei.com>

Packets will not pass through MAC during app loopback.
Therefore, it is meaningless to enable MAC while doing
app loopback. This patch removes this unnecessary action.

Signed-off-by: Yufeng Mo <moyufeng@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 6e1e2cf..7c9f2ba 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6583,8 +6583,6 @@ static int hclge_set_app_loopback(struct hclge_dev *hdev, bool en)
 	/* 2 Then setup the loopback flag */
 	loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
 	hnae3_set_bit(loop_en, HCLGE_MAC_APP_LP_B, en ? 1 : 0);
-	hnae3_set_bit(loop_en, HCLGE_MAC_TX_EN_B, en ? 1 : 0);
-	hnae3_set_bit(loop_en, HCLGE_MAC_RX_EN_B, en ? 1 : 0);
 
 	req->txrx_pad_fcs_loop_en = cpu_to_le32(loop_en);
 
-- 
2.7.4