[PATCH -next v2 1/2] mISDN: Use DEFINE_SPINLOCK() for spinlock

From: Shixin Liu
Date: Mon Mar 29 2021 - 22:25:29 EST


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@xxxxxxxxxx>
---
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