linux-kernel - [PATCH V2 net-next 12/12] net: hns3: code optimization for command queue' spin lock

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Message-ID: <1555206466-44240-13-git-send-email-tanhuazhong@huawei.com>
Date:   Sun, 14 Apr 2019 09:47:46 +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>, Peng Li <lipeng321@...wei.com>,
        Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH V2 net-next 12/12] net: hns3: code optimization for command queue' spin lock

From: Peng Li <lipeng321@...wei.com>

This patch removes some redundant BH disable when initializing
and uninitializing command queue.

Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c   | 4 ++--
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
index cf7ff4a..fbd904e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
@@ -355,7 +355,7 @@ int hclge_cmd_init(struct hclge_dev *hdev)
 	int ret;
 
 	spin_lock_bh(&hdev->hw.cmq.csq.lock);
-	spin_lock_bh(&hdev->hw.cmq.crq.lock);
+	spin_lock(&hdev->hw.cmq.crq.lock);
 
 	hdev->hw.cmq.csq.next_to_clean = 0;
 	hdev->hw.cmq.csq.next_to_use = 0;
@@ -364,7 +364,7 @@ int hclge_cmd_init(struct hclge_dev *hdev)
 
 	hclge_cmd_init_regs(&hdev->hw);
 
-	spin_unlock_bh(&hdev->hw.cmq.crq.lock);
+	spin_unlock(&hdev->hw.cmq.crq.lock);
 	spin_unlock_bh(&hdev->hw.cmq.csq.lock);
 
 	clear_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
index 054556e..1b428d4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
@@ -334,7 +334,7 @@ int hclgevf_cmd_init(struct hclgevf_dev *hdev)
 	int ret;
 
 	spin_lock_bh(&hdev->hw.cmq.csq.lock);
-	spin_lock_bh(&hdev->hw.cmq.crq.lock);
+	spin_lock(&hdev->hw.cmq.crq.lock);
 
 	/* initialize the pointers of async rx queue of mailbox */
 	hdev->arq.hdev = hdev;
@@ -348,7 +348,7 @@ int hclgevf_cmd_init(struct hclgevf_dev *hdev)
 
 	hclgevf_cmd_init_regs(&hdev->hw);
 
-	spin_unlock_bh(&hdev->hw.cmq.crq.lock);
+	spin_unlock(&hdev->hw.cmq.crq.lock);
 	spin_unlock_bh(&hdev->hw.cmq.csq.lock);
 
 	clear_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
-- 
2.7.4