Re: [PATCH -next] soc: ixp4xx: qmgr: Use DEFINE_SPINLOCK() for spinlock

From: Krzysztof Hałasa
Date: Wed Mar 31 2021 - 07:27:21 EST


Yang Yingliang <yangyingliang@xxxxxxxxxx> writes:

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

That's right.

> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>

Acked-by: Krzysztof Halasa <khalasa@xxxxxxx>

> ---
> drivers/soc/ixp4xx/ixp4xx-qmgr.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/soc/ixp4xx/ixp4xx-qmgr.c b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
> index 8c968382cea7..dde3b668eb40 100644
> --- a/drivers/soc/ixp4xx/ixp4xx-qmgr.c
> +++ b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
> @@ -16,7 +16,7 @@
> static struct qmgr_regs __iomem *qmgr_regs;
> static int qmgr_irq_1;
> static int qmgr_irq_2;
> -static spinlock_t qmgr_lock;
> +static DEFINE_SPINLOCK(qmgr_lock);
> static u32 used_sram_bitmap[4]; /* 128 16-dword pages */
> static void (*irq_handlers[QUEUES])(void *pdev);
> static void *irq_pdevs[QUEUES];
> @@ -434,7 +434,6 @@ static int ixp4xx_qmgr_probe(struct platform_device *pdev)
> }
>
> used_sram_bitmap[0] = 0xF; /* 4 first pages reserved for config */
> - spin_lock_init(&qmgr_lock);
>
> dev_info(dev, "IXP4xx Queue Manager initialized.\n");
> return 0;

--
Krzysztof Hałasa

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