linux-kernel - Re: [PATCH] mmc: sdio: Fix PM

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Date:	Thu, 9 Aug 2012 11:55:34 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Thierry Reding <thierry.reding@...onic-design.de>
Cc:	Chris Ball <cjb@...top.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: sdio: Fix PM_SLEEP related build warnings

On Thursday, August 09, 2012, Thierry Reding wrote:
> On Thu, Aug 09, 2012 at 11:27:02AM +0200, Rafael J. Wysocki wrote:
> > On Thursday, August 09, 2012, Thierry Reding wrote:
> > > Power management callbacks defined by SIMPLE_DEV_PM_OPS are only used if
> > > the PM_SLEEP Kconfig symbol has been defined. If not, the compiler will
> > > complain about them being unused.
> > > 
> > > Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
> > 
> > The pm_no_operation() thing is not necessary at all, AFAICT.  I'd just
> > remove it entirely. :-)
> 
> I don't actually have a setup where I can test suspend/resume with this
> driver, but if you say so I can follow up with a patch that removes
> pm_no_operation(). It should work because many drivers without proper
> PM_SLEEP support do not specify .suspend() nor .resume() callbacks
> either.

Sure, it should work.

Thanks,
Rafael
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