Hi Andrzej, kernel test robot noticed the following build warnings: [auto build test WARNING on 33cc938e65a98f1d29d0a18403dbbee050dcad9a] url: https://github.com/intel-lab-lkp/linux/commits/Andrzej-Pietrasiewicz/usb-gadget-webcam-Make-g_webcam-loadable-again/20231208-211513 base: 33cc938e65a98f1d29d0a18403dbbee050dcad9a patch link: https://lore.kernel.org/r/20231208131342.65671-1-andrzej.p%40collabora.com patch subject: [PATCH v2] usb: gadget: webcam: Make g_webcam loadable again config: i386-buildonly-randconfig-002-20231209 (https://download.01.org/0day-ci/archive/20231209/202312090717.dUYTE5cM-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/202312090717.dUYTE5cM-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/202312090717.dUYTE5cM-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/usb/gadget/legacy/webcam.c:368:32: warning: 'uvcg_frame_mjpeg_720p' defined but not used [-Wunused-const-variable=] 368 | static const struct uvcg_frame uvcg_frame_mjpeg_720p = { | ^~~~~~~~~~~~~~~~~~~~~ vim +/uvcg_frame_mjpeg_720p +368 drivers/usb/gadget/legacy/webcam.c 367 > 368 static const struct uvcg_frame uvcg_frame_mjpeg_720p = { 369 .fmt_type = UVCG_MJPEG, 370 .frame = { 371 .b_length = uvc_frame_mjpg_720p.bLength, 372 .b_descriptor_type = uvc_frame_mjpg_720p.bDescriptorType, 373 .b_descriptor_subtype = uvc_frame_mjpg_720p.bDescriptorSubType, 374 .b_frame_index = uvc_frame_mjpg_720p.bFrameIndex, 375 .bm_capabilities = uvc_frame_mjpg_720p.bmCapabilities, 376 .w_width = uvc_frame_mjpg_720p.wWidth, 377 .w_height = uvc_frame_mjpg_720p.wHeight, 378 .dw_min_bit_rate = uvc_frame_mjpg_720p.dwMinBitRate, 379 .dw_max_bit_rate = uvc_frame_mjpg_720p.dwMaxBitRate, 380 .dw_max_video_frame_buffer_size = uvc_frame_mjpg_720p.dwMaxVideoFrameBufferSize, 381 .dw_default_frame_interval = uvc_frame_mjpg_720p.dwDefaultFrameInterval, 382 .b_frame_interval_type = uvc_frame_mjpg_720p.bFrameIntervalType, 383 }, 384 .dw_frame_interval = (u32 *)uvc_frame_mjpg_720p.dwFrameInterval, 385 }; 386 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki