Hi Thomas, kernel test robot noticed the following build errors: [auto build test ERROR on lee-backlight/for-backlight-next] [also build test ERROR on lee-leds/for-leds-next linus/master lee-backlight/for-backlight-fixes v6.14-rc4 next-20250227] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/fbdev-Rework-fb_blank/20250226-174013 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next patch link: https://lore.kernel.org/r/20250226093456.147402-7-tzimmermann%40suse.de patch subject: [PATCH v2 06/11] backlight: Replace fb events with a dedicated function call config: arm-randconfig-002-20250227 (https://download.01.org/0day-ci/archive/20250227/202502272049.iWEcMOrk-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250227/202502272049.iWEcMOrk-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502272049.iWEcMOrk-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from arch/arm/mach-omap2/fb.c:16: In file included from include/linux/omapfb.h:13: In file included from include/uapi/linux/omapfb.h:28: >> include/linux/fb.h:767:6: warning: no previous prototype for function 'fb_bl_notify_blank' [-Wmissing-prototypes] 767 | void fb_bl_notify_blank(struct fb_info *info, int old_blank) | ^ include/linux/fb.h:767:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 767 | void fb_bl_notify_blank(struct fb_info *info, int old_blank) | ^ | static 1 warning generated. -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-vdi.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-smfc.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-cpmem.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-image-convert.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-ic-csc.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-ic.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-dmfc.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-dp.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-di.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: fb_bl_notify_blank >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-common.o:(fb_bl_notify_blank) >>> defined at fb.h:768 (include/linux/fb.h:768) >>> drivers/gpu/ipu-v3/ipu-dc.o:(.text+0x0) .. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
