Re: [PATCH] mmc: sdio: Fix PM_SLEEP related build warnings
From: Thierry Reding
Date: Thu Aug 09 2012 - 05:28:10 EST
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@xxxxxxxxxxxxxxxxx>
>
> 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.
Thierry
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