linux-kernel - Re: [PATCH -next] crypto: qat - remove unnecessary mutex

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Message-ID: <20200924050346.GB32206@silpixa00400314>
Date:   Thu, 24 Sep 2020 06:03:46 +0100
From:   Giovanni Cabiddu <giovanni.cabiddu@...el.com>
To:     Qinglang Miao <miaoqinglang@...wei.com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        qat-linux <qat-linux@...el.com>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] crypto: qat - remove unnecessary mutex_init()

On Wed, Sep 16, 2020 at 07:21:21AM +0100, Qinglang Miao wrote:
> The mutex adf_ctl_lock is initialized statically. It is
> unnecessary to initialize by mutex_init().
> 
> Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>

Acked-by: Giovanni Cabiddu <giovanni.cabiddu@...el.com>

> ---
>  drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> index 71d0c44aa..eb9b3be9d 100644
> --- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> +++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
> @@ -416,8 +416,6 @@ static long adf_ctl_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
>  
>  static int __init adf_register_ctl_device_driver(void)
>  {
> -	mutex_init(&adf_ctl_lock);
> -
>  	if (adf_chr_drv_create())
>  		goto err_chr_dev;
>  
> -- 
> 2.23.0
>