linux-kernel - [PATCH -next 1/2] mtip32xx: use DEFINE

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Message-ID: <20210329095349.4170870-1-liushixin2@huawei.com>
Date:   Mon, 29 Mar 2021 17:53:48 +0800
From:   Shixin Liu <liushixin2@...wei.com>
To:     Jens Axboe <axboe@...nel.dk>
CC:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Shixin Liu <liushixin2@...wei.com>
Subject: [PATCH -next 1/2] mtip32xx: use DEFINE_SPINLOCK() for spinlock

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Signed-off-by: Shixin Liu <liushixin2@...wei.com>
---
 drivers/block/mtip32xx/mtip32xx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 3be0dbc674bd..39e3280030d6 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -97,7 +97,7 @@ static int instance;
 
 static struct list_head online_list;
 static struct list_head removing_list;
-static spinlock_t dev_lock;
+static DEFINE_SPINLOCK(dev_lock);
 
 /*
  * Global variable used to hold the major block device number
@@ -4363,8 +4363,6 @@ static int __init mtip_init(void)
 
 	pr_info(MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");
 
-	spin_lock_init(&dev_lock);
-
 	INIT_LIST_HEAD(&online_list);
 	INIT_LIST_HEAD(&removing_list);
 
-- 
2.25.1