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X-CSE-ConnectionGUID: O0Zb+UxwSFOvTpb1zCAymg== X-CSE-MsgGUID: Ai2EVxBlSSKV9kjcpYr9Yg== X-IronPort-AV: E=McAfee;i="6700,10204,11315"; a="39987904" X-IronPort-AV: E=Sophos;i="6.12,314,1728975600"; d="scan'208";a="39987904" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2025 08:46:20 -0800 X-CSE-ConnectionGUID: WuQQS6uuTka+n1YVpfcRuw== X-CSE-MsgGUID: NY9ioWISRsq57xzSMib7YA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="110001653" Received: from lkp-server01.sh.intel.com (HELO d63d4d77d921) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 14 Jan 2025 08:46:18 -0800 Received: from kbuild by d63d4d77d921 with local (Exim 4.96) (envelope-from ) id 1tXk3T-000Olb-2I; Tue, 14 Jan 2025 16:46:15 +0000 Date: Wed, 15 Jan 2025 00:45:18 +0800 From: kernel test robot To: John Erasmus Mari Geronimo , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley Subject: Re: [PATCH 2/2] power: supply: add LT8491 battery charger driver Message-ID: <202501150030.cWwtcIoo-lkp@intel.com> References: <20250110080235.54808-3-johnerasmusmari.geronimo@analog.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: <20250110080235.54808-3-johnerasmusmari.geronimo@analog.com> Hi John, kernel test robot noticed the following build warnings: [auto build test WARNING on a3a8799165ff83bb764fd800c6559c3cba0ddac3] url: https://github.com/intel-lab-lkp/linux/commits/John-Erasmus-Mari-Geronimo/dt-bindings-power-supply-add-adi-lt8491-yaml/20250110-160441 base: a3a8799165ff83bb764fd800c6559c3cba0ddac3 patch link: https://lore.kernel.org/r/20250110080235.54808-3-johnerasmusmari.geronimo%40analog.com patch subject: [PATCH 2/2] power: supply: add LT8491 battery charger driver config: sparc64-randconfig-r071-20250114 (https://download.01.org/0day-ci/archive/20250115/202501150030.cWwtcIoo-lkp@intel.com/config) compiler: sparc64-linux-gcc (GCC) 14.2.0 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/202501150030.cWwtcIoo-lkp@intel.com/ smatch warnings: drivers/power/supply/lt8491_charger.c:66 lt8491_read_serial_number() warn: unsigned 'serial_number[i]' is never less than zero. vim +66 drivers/power/supply/lt8491_charger.c 57 58 static int lt8491_read_serial_number(struct lt8491_info *info) 59 { 60 int i, ret; 61 u32 serial_number[LT8491_MFR_DATA_LEN]; 62 63 for (i = 0; i < LT8491_MFR_DATA_LEN; i++) { 64 serial_number[i] = i2c_smbus_read_word_data(info->client, 65 LT8491_MFR_DATA1_LSB_REG + i * 2); > 66 if (serial_number[i] < 0) 67 return serial_number[i]; 68 } 69 70 ret = sprintf(info->serial_number, "%04x%04x%04x", serial_number[0], 71 serial_number[1], serial_number[2]); 72 if (ret < 0) 73 return ret; 74 75 return 0; 76 } 77 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki