On Thu, 24 Dec 2020 21:22:54 +0800
Zheng Yongjun <zhengyongjun3@xxxxxxxxxx> wrote:
> mutex lock can be initialized automatically with DEFINE_MUTEX()
> rather than explicitly calling mutex_init().
>
> Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
Acked-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> ---
> drivers/dma/idxd/init.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
> index 0a4432b063b5..2297c93dd527 100644
> --- a/drivers/dma/idxd/init.c
> +++ b/drivers/dma/idxd/init.c
> @@ -27,7 +27,7 @@ MODULE_AUTHOR("Intel Corporation");
> #define DRV_NAME "idxd"
>
> static struct idr idxd_idrs[IDXD_TYPE_MAX];
> -static struct mutex idxd_idr_lock;
> +static DEFINE_MUTEX(idxd_idr_lock);
>
> static struct pci_device_id idxd_pci_tbl[] = {
> /* DSA ver 1.0 platforms */
> @@ -481,7 +481,6 @@ static int __init idxd_init_module(void)
> pr_info("%s: Intel(R) Accelerator Devices Driver %s\n",
> DRV_NAME, IDXD_DRIVER_VERSION);
>
> - mutex_init(&idxd_idr_lock);
> for (i = 0; i < IDXD_TYPE_MAX; i++)
> idr_init(&idxd_idrs[i]);
>
