netdev - [PATCH net-next] mac80211_hwsim: use DEFINE

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Date:   Sat, 27 Mar 2021 17:59:20 +0800
From:   Huang Guobin <huangguobin4@...wei.com>
To:     <huangguobin4@...wei.com>,
        Johannes Berg <johannes@...solutions.net>,
        Kalle Valo <kvalo@...eaurora.org>,
        Jakub Kicinski <kuba@...nel.org>
CC:     <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: [PATCH net-next] mac80211_hwsim: 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>
---
 drivers/net/wireless/mac80211_hwsim.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index fa7d4c20dc13..d56d2095a0d4 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -596,7 +596,7 @@ static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
 	{ .vendor_id = OUI_QCA, .subcmd = 1 },
 };
 
-static spinlock_t hwsim_radio_lock;
+static DEFINE_SPINLOCK(hwsim_radio_lock);
 static LIST_HEAD(hwsim_radios);
 static struct rhashtable hwsim_radios_rht;
 static int hwsim_radio_idx;
@@ -763,7 +763,7 @@ static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
 /* MAC80211_HWSIM virtio queues */
 static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
 static bool hwsim_virtio_enabled;
-static spinlock_t hwsim_virtio_lock;
+static DEFINE_SPINLOCK(hwsim_virtio_lock);
 
 static void hwsim_virtio_rx_work(struct work_struct *work);
 static DECLARE_WORK(hwsim_virtio_rx, hwsim_virtio_rx_work);
@@ -4410,8 +4410,6 @@ static struct virtio_driver virtio_hwsim = {
 
 static int hwsim_register_virtio_driver(void)
 {
-	spin_lock_init(&hwsim_virtio_lock);
-
 	return register_virtio_driver(&virtio_hwsim);
 }
 
@@ -4440,8 +4438,6 @@ static int __init init_mac80211_hwsim(void)
 	if (channels < 1)
 		return -EINVAL;
 
-	spin_lock_init(&hwsim_radio_lock);
-
 	err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
 	if (err)
 		return err;