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X-CSE-ConnectionGUID: V7IPL3qiSM6rEJ4xOjmGWA== X-CSE-MsgGUID: IievAw/0TK2HSniGzZP2AA== X-IronPort-AV: E=McAfee;i="6800,10657,11693"; a="70847813" X-IronPort-AV: E=Sophos;i="6.21,278,1763452800"; d="scan'208";a="70847813" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Feb 2026 03:05:44 -0800 X-CSE-ConnectionGUID: KqtSxh00RcK4ZpJpftAHqg== X-CSE-MsgGUID: uqlFWAWRRxCHnRy84Zh3Sg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,278,1763452800"; d="scan'208";a="234059155" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 07 Feb 2026 03:05:41 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vog8A-00000000lbM-2iTi; Sat, 07 Feb 2026 11:05:38 +0000 Date: Sat, 7 Feb 2026 19:04:54 +0800 From: kernel test robot To: Carl Lee via B4 Relay , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Charles Hsu Cc: oe-kbuild-all@lists.linux.dev, linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, carl.lee@amd.com, peter.shen@amd.com, colin.huang2@amd.com Subject: Re: [PATCH v2 3/3] hwmon: pmbus: mpq8785: force direct mode for VID VOUT on MPQ8785/MPQ8786 Message-ID: <202602071928.rf2Gjdgd-lkp@intel.com> References: <20260205-dt-bindings-hwmon-pmbus-mpq8785-add-mpq8786-support-v2-3-3744cd9b2850@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260205-dt-bindings-hwmon-pmbus-mpq8785-add-mpq8786-support-v2-3-3744cd9b2850@amd.com> Hi Carl, kernel test robot noticed the following build warnings: [auto build test WARNING on 4c87cdd0328495759f6e9f9f4e1e53ef8032a76f] url: https://github.com/intel-lab-lkp/linux/commits/Carl-Lee-via-B4-Relay/dt-bindings-hwmon-pmbus-mpq8785-add-MPQ8786-support/20260205-180428 base: 4c87cdd0328495759f6e9f9f4e1e53ef8032a76f patch link: https://lore.kernel.org/r/20260205-dt-bindings-hwmon-pmbus-mpq8785-add-mpq8786-support-v2-3-3744cd9b2850%40amd.com patch subject: [PATCH v2 3/3] hwmon: pmbus: mpq8785: force direct mode for VID VOUT on MPQ8785/MPQ8786 config: i386-randconfig-141-20260207 (https://download.01.org/0day-ci/archive/20260207/202602071928.rf2Gjdgd-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) smatch version: v0.5.0-8994-gd50c5a4c reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260207/202602071928.rf2Gjdgd-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/202602071928.rf2Gjdgd-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/hwmon/pmbus/mpq8785.c:63:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] 63 | default: | ^ drivers/hwmon/pmbus/mpq8785.c:63:2: note: insert '__attribute__((fallthrough));' to silence this warning 63 | default: | ^ | __attribute__((fallthrough)); drivers/hwmon/pmbus/mpq8785.c:63:2: note: insert 'break;' to avoid fall-through 63 | default: | ^ | break; 1 warning generated. vim +63 drivers/hwmon/pmbus/mpq8785.c 50 51 static int mpq8785_read_byte_data(struct i2c_client *client, int page, int reg) 52 { 53 int ret; 54 55 switch (reg) { 56 case PMBUS_VOUT_MODE: 57 ret = pmbus_read_byte_data(client, page, reg); 58 if (ret < 0) 59 return ret; 60 61 if ((ret >> 5) == 1) 62 return PB_VOUT_MODE_DIRECT; > 63 default: 64 return -ENODATA; 65 } 66 67 return ret; 68 } 69 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki