netdev - [PATCH net-next] rfkill: use DEFINE

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Message-ID: <1617711116-49370-1-git-send-email-huangguobin4@huawei.com>
Date:   Tue, 6 Apr 2021 20:11:56 +0800
From:   Huang Guobin <huangguobin4@...wei.com>
To:     <huangguobin4@...wei.com>,
        Johannes Berg <johannes@...solutions.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
CC:     <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next] rfkill: use DEFINE_SPINLOCK() for spinlock

From: Guobin Huang <huangguobin4@...wei.com>

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

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Guobin Huang <huangguobin4@...wei.com>
---
 net/rfkill/input.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/rfkill/input.c b/net/rfkill/input.c
index 4b01baea1d4a..598d0a61bda7 100644
--- a/net/rfkill/input.c
+++ b/net/rfkill/input.c
@@ -36,7 +36,7 @@ module_param_named(master_switch_mode, rfkill_master_switch_mode, uint, 0);
 MODULE_PARM_DESC(master_switch_mode,
 	"SW_RFKILL_ALL ON should: 0=do nothing (only unlock); 1=restore; 2=unblock all");
 
-static spinlock_t rfkill_op_lock;
+static DEFINE_SPINLOCK(rfkill_op_lock);
 static bool rfkill_op_pending;
 static unsigned long rfkill_sw_pending[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
 static unsigned long rfkill_sw_state[BITS_TO_LONGS(NUM_RFKILL_TYPES)];
@@ -330,8 +330,6 @@ int __init rfkill_handler_init(void)
 		return -EINVAL;
 	}
 
-	spin_lock_init(&rfkill_op_lock);
-
 	/* Avoid delay at first schedule */
 	rfkill_last_scheduled =
 			jiffies - msecs_to_jiffies(RFKILL_OPS_DELAY) - 1;