linux-kernel - [PATCH -next] s390: cio: Use DEFINE

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Message-ID: <20201223141512.1178-1-zhengyongjun3@huawei.com>
Date:   Wed, 23 Dec 2020 22:15:12 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <linux-s390@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Zheng Yongjun <zhengyongjun3@...wei.com>
Subject: [PATCH -next] s390: cio: Use DEFINE_SPINLOCK() for spinlock

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

Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
---
 drivers/s390/cio/css.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index cca1a7c4bb33..022f573f0bcc 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -647,13 +647,12 @@ static void css_sch_todo(struct work_struct *work)
 }
 
 static struct idset *slow_subchannel_set;
-static spinlock_t slow_subchannel_lock;
+static DEFINE_SPINLOCK(slow_subchannel_lock);
 static wait_queue_head_t css_eval_wq;
 static atomic_t css_eval_scheduled;
 
 static int __init slow_subchannel_init(void)
 {
-	spin_lock_init(&slow_subchannel_lock);
 	atomic_set(&css_eval_scheduled, 0);
 	init_waitqueue_head(&css_eval_wq);
 	slow_subchannel_set = idset_sch_new();
-- 
2.22.0