linux-kernel - Re: [PATCH 3/3] watchdog: sirfsoc_wdt: remove unnecessary CONFIG_PM

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Date:   Thu, 29 Oct 2020 06:05:21 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Coiby Xu <coiby.xu@...il.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>
Cc:     Barry Song <baohua@...nel.org>,
        "open list:WATCHDOG DEVICE DRIVERS" <linux-watchdog@...r.kernel.org>,
        "moderated list:ARM/CSR SIRFPRIMA2 MACHINE SUPPORT" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] watchdog: sirfsoc_wdt: remove unnecessary
 CONFIG_PM_SLEEP

On 10/29/20 12:53 AM, Coiby Xu wrote:
> SIMPLE_DEV_PM_OPS has already took good care of CONFIG_PM_CONFIG.
> 
> Signed-off-by: Coiby Xu <coiby.xu@...il.com>
> ---
>  drivers/watchdog/sirfsoc_wdt.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c
> index 734cf2966ecb..dc8341cd7d44 100644
> --- a/drivers/watchdog/sirfsoc_wdt.c
> +++ b/drivers/watchdog/sirfsoc_wdt.c
> @@ -170,7 +170,6 @@ static int sirfsoc_wdt_probe(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -#ifdef	CONFIG_PM_SLEEP
>  static int sirfsoc_wdt_suspend(struct device *dev)

And again: __maybe_unused

I would suggest to test compile the code with CONFIG_PM_SLEEP disabled.

>  {
>  	return 0;
> @@ -189,7 +188,6 @@ static int sirfsoc_wdt_resume(struct device *dev)
>  
>  	return 0;
>  }
> -#endif
>  
>  static SIMPLE_DEV_PM_OPS(sirfsoc_wdt_pm_ops,
>  		sirfsoc_wdt_suspend, sirfsoc_wdt_resume);
>