Hi Peter, [auto build test ERROR on drm/drm-next] [also build test ERROR on next-20170621] [cannot apply to v4.12-rc6] [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/Peter-Rosin/improve-the-fb_setcmap-helper/20170621-205441 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): >> drivers/gpu//drm/armada/armada_fbdev.c:121:2: error: unknown field 'gamma_set' specified in initializer .gamma_set = armada_drm_crtc_gamma_set, ^ >> drivers/gpu//drm/armada/armada_fbdev.c:121:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .gamma_set = armada_drm_crtc_gamma_set, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu//drm/armada/armada_fbdev.c:121:15: note: (near initialization for 'armada_fb_helper_funcs.fb_probe') >> drivers/gpu//drm/armada/armada_fbdev.c:122:2: error: unknown field 'gamma_get' specified in initializer .gamma_get = armada_drm_crtc_gamma_get, ^ drivers/gpu//drm/armada/armada_fbdev.c:122:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .gamma_get = armada_drm_crtc_gamma_get, ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu//drm/armada/armada_fbdev.c:122:15: note: (near initialization for 'armada_fb_helper_funcs.initial_config') cc1: some warnings being treated as errors vim +/gamma_set +121 drivers/gpu//drm/armada/armada_fbdev.c 96f60e37 Russell King 2012-08-15 115 ret = 1; 96f60e37 Russell King 2012-08-15 116 } 96f60e37 Russell King 2012-08-15 117 return ret; 96f60e37 Russell King 2012-08-15 118 } 96f60e37 Russell King 2012-08-15 119 3a493879 Thierry Reding 2014-06-27 120 static const struct drm_fb_helper_funcs armada_fb_helper_funcs = { 96f60e37 Russell King 2012-08-15 @121 .gamma_set = armada_drm_crtc_gamma_set, 96f60e37 Russell King 2012-08-15 @122 .gamma_get = armada_drm_crtc_gamma_get, 96f60e37 Russell King 2012-08-15 123 .fb_probe = armada_fb_probe, 96f60e37 Russell King 2012-08-15 124 }; 96f60e37 Russell King 2012-08-15 125 :::::: The code at line 121 was first introduced by commit :::::: 96f60e37dc66091bde8d5de136ff6fda09f2d799 DRM: Armada: Add Armada DRM driver :::::: TO: Russell King :::::: CC: Russell King --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation