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Date:   Wed, 21 Oct 2020 21:42:57 +0200
From:   Niklas =?iso-8859-1?Q?S=F6derlund?= 
        <niklas.soderlund@ragnatech.se>
To:     Tian Tao <tiantao6@hisilicon.com>
Cc:     rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org,
        linux-renesas-soc@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] thermal: replace spin_lock_irqsave by spin_lock in hard
 IRQ
Message-ID: <20201021194257.GC2158081@oden.dyn.berto.se>
References: <1603249530-25218-1-git-send-email-tiantao6@hisilicon.com>
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In-Reply-To: <1603249530-25218-1-git-send-email-tiantao6@hisilicon.com>
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Hi Tian,

Thanks for your work.

On 2020-10-21 11:05:30 +0800, Tian Tao wrote:
> The code has been in a irq-disabled context since it is hard IRQ. There
> is no necessity to do it again.
> 
> Signed-off-by: Tian Tao <tiantao6@hisilicon.com>

Tested-by: Niklas S?derlund <niklas.soderlund+renesas@ragnatech.se>

> ---
>  drivers/thermal/rcar_thermal.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
> index 5c2a13b..6ae757d 100644
> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -409,16 +409,15 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data)
>  {
>  	struct rcar_thermal_common *common = data;
>  	struct rcar_thermal_priv *priv;
> -	unsigned long flags;
>  	u32 status, mask;
>  
> -	spin_lock_irqsave(&common->lock, flags);
> +	spin_lock(&common->lock);
>  
>  	mask	= rcar_thermal_common_read(common, INTMSK);
>  	status	= rcar_thermal_common_read(common, STR);
>  	rcar_thermal_common_write(common, STR, 0x000F0F0F & mask);
>  
> -	spin_unlock_irqrestore(&common->lock, flags);
> +	spin_unlock(&common->lock);
>  
>  	status = status & ~mask;
>  
> -- 
> 2.7.4
> 

-- 
Regards,
Niklas S?derlund