On Sat, Sep 30, 2017 at 01:18:53PM +0800, kbuild test robot wrote: > Hi Meghana, > > [auto build test WARNING on drm/drm-next] > [also build test WARNING on v4.14-rc2 next-20170929] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Meghana-Madhyastha/drm-tinydrm-drm_of_find_backlight-helper/20170930-122931 > base: git://people.freedesktop.org/~airlied/linux.git drm-next > config: x86_64-randconfig-x017-201739 (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All warnings (new ones prefixed by >>): > > In file included from drivers/gpu//drm/tinydrm/mi0283qt.c:15:0: > include/drm/drm_of.h:74:1: error: expected identifier or '(' before '{' token > { > ^ > include/drm/drm_of.h:80:1: error: expected identifier or '(' before '{' token > { > ^ > include/drm/drm_of.h:72:40: warning: 'drm_of_find_backlight' declared 'static' but never defined [-Wunused-function] > static inline struct backlight_device *drm_of_find_backlight( > ^~~~~~~~~~~~~~~~~~~~~ > >> include/drm/drm_of.h:78:40: warning: 'devm_drm_of_find_backlight' used but never defined > static inline struct backlight_device *devm_drm_of_find_backlight( You need to squash the dummy version into the patch that introduces the first usage, otherwise compilation can fail and break bisecting. And looks liek this doesn't compile. It takes a bit of playing around until you have a Kconfig that hits this. Luckily 0day has constructed one for you already. -Daniel > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > > vim +/devm_drm_of_find_backlight +78 include/drm/drm_of.h > > 71 > 72 static inline struct backlight_device *drm_of_find_backlight( > 73 struct device *dev); > > 74 { > 75 return -EINVAL; > 76 } > 77 > > 78 static inline struct backlight_device *devm_drm_of_find_backlight( > 79 struct device *dev); > 80 { > 81 return -EINVAL; > 82 } > 83 #endif > 84 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
