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X-CSE-ConnectionGUID: CaLH7h9DRnawXTeAPHh2eg== X-CSE-MsgGUID: HXHqvo4HQ++nY0Lx7fwzGQ== X-IronPort-AV: E=McAfee;i="6700,10204,11280"; a="33889106" X-IronPort-AV: E=Sophos;i="6.12,218,1728975600"; d="scan'208";a="33889106" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2024 19:41:06 -0800 X-CSE-ConnectionGUID: X3YHOIjOT4KxtkQC+kKXTQ== X-CSE-MsgGUID: nkT5gCzYSmOuxlFtB3DBpQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,218,1728975600"; d="scan'208";a="95295523" Received: from lkp-server01.sh.intel.com (HELO 82a3f569d0cb) ([10.239.97.150]) by fmviesa010.fm.intel.com with ESMTP; 08 Dec 2024 19:41:02 -0800 Received: from kbuild by 82a3f569d0cb with local (Exim 4.96) (envelope-from ) id 1tKUdn-0003kB-0K; Mon, 09 Dec 2024 03:40:59 +0000 Date: Mon, 9 Dec 2024 11:40:50 +0800 From: kernel test robot To: Nick Chan , Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller , Hector Martin , Sven Peter , Alyssa Rosenzweig , dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH 2/3] backlight: dwi_bl: Add Apple DWI backlight driver Message-ID: <202412070721.9tZI9Ogl-lkp@intel.com> References: <20241206172735.4310-3-towinchenmi@gmail.com> Precedence: bulk X-Mailing-List: asahi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241206172735.4310-3-towinchenmi@gmail.com> Hi Nick, kernel test robot noticed the following build errors: [auto build test ERROR on 40384c840ea1944d7c5a392e8975ed088ecf0b37] url: https://github.com/intel-lab-lkp/linux/commits/Nick-Chan/dt-bindings-leds-backlight-apple-dwi-bl-Add-bindings-for-Apple-DWI-backlight/20241207-013254 base: 40384c840ea1944d7c5a392e8975ed088ecf0b37 patch link: https://lore.kernel.org/r/20241206172735.4310-3-towinchenmi%40gmail.com patch subject: [PATCH 2/3] backlight: dwi_bl: Add Apple DWI backlight driver config: arc-randconfig-001-20241207 (https://download.01.org/0day-ci/archive/20241207/202412070721.9tZI9Ogl-lkp@intel.com/config) compiler: arceb-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241207/202412070721.9tZI9Ogl-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202412070721.9tZI9Ogl-lkp@intel.com/ All errors (new ones prefixed by >>): drivers/video/backlight/dwi_bl.c: In function 'dwi_bl_update_status': >> drivers/video/backlight/dwi_bl.c:46:16: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration] 46 | cmd |= FIELD_PREP(DWI_BL_CMD_DATA, brightness); | ^~~~~~~~~~ drivers/video/backlight/dwi_bl.c: In function 'dwi_bl_get_brightness': >> drivers/video/backlight/dwi_bl.c:61:16: error: implicit declaration of function 'FIELD_GET' [-Werror=implicit-function-declaration] 61 | return FIELD_GET(DWI_BL_CMD_DATA, cmd); | ^~~~~~~~~ cc1: some warnings being treated as errors vim +/FIELD_PREP +46 drivers/video/backlight/dwi_bl.c 37 38 static int dwi_bl_update_status(struct backlight_device *bl) 39 { 40 struct apple_dwi_bl *dwi_bl = bl_get_data(bl); 41 42 int brightness = backlight_get_brightness(bl); 43 44 u32 cmd = 0; 45 > 46 cmd |= FIELD_PREP(DWI_BL_CMD_DATA, brightness); 47 cmd |= FIELD_PREP(DWI_BL_CMD_TYPE, DWI_BL_CMD_TYPE_SET_BRIGHTNESS); 48 49 writel(cmd, dwi_bl->base + DWI_BL_CMD); 50 writel(DWI_BL_CTL_SEND, dwi_bl->base + DWI_BL_CTL); 51 52 return 0; 53 } 54 55 static int dwi_bl_get_brightness(struct backlight_device *bl) 56 { 57 struct apple_dwi_bl *dwi_bl = bl_get_data(bl); 58 59 u32 cmd = readl(dwi_bl->base + DWI_BL_CMD); 60 > 61 return FIELD_GET(DWI_BL_CMD_DATA, cmd); 62 } 63 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki