linux-kernel - [PATCH -next v2 1/2] mISDN: Use DEFINE

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Date:   Tue, 30 Mar 2021 10:24:14 +0800
From:   Shixin Liu <liushixin2@...wei.com>
To:     Karsten Keil <isdn@...ux-pingi.de>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Shixin Liu <liushixin2@...wei.com>
Subject: [PATCH -next v2 1/2] mISDN: Use DEFINE_SPINLOCK() for spinlock

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

Changelog:
>From v1:
1. fix the mistake reported by kernel test robot.

Signed-off-by: Shixin Liu <liushixin2@...wei.com>
---
 drivers/isdn/hardware/mISDN/hfcmulti.c | 7 ++-----
 drivers/isdn/mISDN/dsp_core.c          | 3 +--
 drivers/isdn/mISDN/l1oip_core.c        | 3 +--
 3 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 14092152b786..4f7eaa17fb27 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -173,13 +173,13 @@
 #define	MAX_FRAGS	(32 * MAX_CARDS)
 
 static LIST_HEAD(HFClist);
-static spinlock_t HFClock; /* global hfc list lock */
+static DEFINE_SPINLOCK(HFClock); /* global hfc list lock */
 
 static void ph_state_change(struct dchannel *);
 
 static struct hfc_multi *syncmaster;
 static int plxsd_master; /* if we have a master card (yet) */
-static spinlock_t plx_lock; /* may not acquire other lock inside */
+static DEFINE_SPINLOCK(plx_lock); /* may not acquire other lock inside */
 
 #define	TYP_E1		1
 #define	TYP_4S		4
@@ -5480,9 +5480,6 @@ HFCmulti_init(void)
 	printk(KERN_DEBUG "%s: IRQ_DEBUG IS ENABLED!\n", __func__);
 #endif
 
-	spin_lock_init(&HFClock);
-	spin_lock_init(&plx_lock);
-
 	if (debug & DEBUG_HFCMULTI_INIT)
 		printk(KERN_DEBUG "%s: init entered\n", __func__);
 
diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c
index 4946ea14bf74..8766095cd6e7 100644
--- a/drivers/isdn/mISDN/dsp_core.c
+++ b/drivers/isdn/mISDN/dsp_core.c
@@ -176,7 +176,7 @@ MODULE_LICENSE("GPL");
 
 /*int spinnest = 0;*/
 
-spinlock_t dsp_lock; /* global dsp lock */
+DEFINE_SPINLOCK(dsp_lock); /* global dsp lock */
 struct list_head dsp_ilist;
 struct list_head conf_ilist;
 int dsp_debug;
@@ -1169,7 +1169,6 @@ static int __init dsp_init(void)
 	printk(KERN_INFO "mISDN_dsp: DSP clocks every %d samples. This equals "
 	       "%d jiffies.\n", dsp_poll, dsp_tics);
 
-	spin_lock_init(&dsp_lock);
 	INIT_LIST_HEAD(&dsp_ilist);
 	INIT_LIST_HEAD(&conf_ilist);
 
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index facbd886ee1c..62fad8f1fc42 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -229,7 +229,7 @@
 static const char *l1oip_revision = "2.00";
 
 static int l1oip_cnt;
-static spinlock_t l1oip_lock;
+static DEFINE_SPINLOCK(l1oip_lock);
 static struct list_head l1oip_ilist;
 
 #define MAX_CARDS	16
@@ -1441,7 +1441,6 @@ l1oip_init(void)
 	       l1oip_revision);
 
 	INIT_LIST_HEAD(&l1oip_ilist);
-	spin_lock_init(&l1oip_lock);
 
 	if (l1oip_4bit_alloc(ulaw))
 		return -ENOMEM;
-- 
2.25.1