On Fri, Jan 01, 2016 at 03:39:17PM +0100, Arnd Bergmann wrote: > The hdlcd_pm_suspend and hdlcd_pm_resume are intentionally unused > when CONFIG_PM is not set in this driver, and we get a compiler warning > for this: > > drivers/gpu/drm/arm/hdlcd_drv.c:521:12: warning: 'hdlcd_pm_suspend' defined but not used [-Wunused-function] > drivers/gpu/drm/arm/hdlcd_drv.c:536:12: warning: 'hdlcd_pm_resume' defined but not used [-Wunused-function] > > This adds a __maybe_unused annotation for the two functions, to let > the compiler know this is the intended behavior. This is better than > an #ifdef as it improves the compile time coverage of the code and it > looks nicer. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Thierry Reding <treding@xxxxxxxxxx>
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