4 Jan
2016
4 Jan
'16
8:24 a.m.
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
Reviewed-by: Thierry Reding treding@nvidia.com