[PATCH 3/3] drm: arm-hdlcd: fix build warnings for !CONFIG_PM
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From: Thierry Reding <hidden>
Date: 2016-01-04 08:24:36
Also in:
dri-devel, lkml
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@arndb.de>
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