linux-kernel - Re: [PATCH 1/2] [media] ad5820: use __maybe

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Message-ID: <20160913083146.GE5086@valkosipuli.retiisi.org.uk>
Date:   Tue, 13 Sep 2016 11:31:46 +0300
From:   Sakari Ailus <sakari.ailus@....fi>
To:     Pavel Machek <pavel@....cz>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Pali Rohár <pali.rohar@...il.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] [media] ad5820: use __maybe_unused for PM functions

On Mon, Sep 12, 2016 at 07:52:08PM +0200, Pavel Machek wrote:
> On Mon 2016-09-12 17:32:57, Arnd Bergmann wrote:
> > The new ad5820 driver uses #ifdef to hide the suspend/resume functions,
> > but gets it wrong when CONFIG_PM_SLEEP is disabled:
> > 
> > drivers/media/i2c/ad5820.c:286:12: error: 'ad5820_resume' defined but not used [-Werror=unused-function]
> > drivers/media/i2c/ad5820.c:274:12: error: 'ad5820_suspend' defined but not used [-Werror=unused-function]
> > 
> > This replaces the #ifdef with a __maybe_unused annotation that is
> > simpler and harder to get wrong, avoiding the warning.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > Fixes: bee3d5115611 ("[media] ad5820: Add driver for auto-focus
> coil")
> 
> Thanks!
> 
> Acked-by: Pavel Machek <pavel@....cz>

Thanks, Arnd and Pavel!

Added to my ad5820 branch.

-- 
Sakari Ailus
e-mail: sakari.ailus@....fi	XMPP: sailus@...iisi.org.uk