Hi Ai, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.6-rc6 next-20231020] [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/Ai-Chao/platform-x86-support-to-store-show-powermode-value-for-Inspur/20231017-125537 base: linus/master patch link: https://lore.kernel.org/r/20231014032844.3823198-1-aichao%40kylinos.cn patch subject: [PATCH v2] platform/x86: support to store/show powermode value for Inspur config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231020/202310202354.NjaAKTX2-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/20231020/202310202354.NjaAKTX2-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/202310202354.NjaAKTX2-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/platform/x86/inspur-wmi.c:70: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Set Power Mode to EC RAM. If Power Mode value greater than 0x3, drivers/platform/x86/inspur-wmi.c:111: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Get Power Mode from EC RAM, If Power Mode value greater than 0x3, vim +70 drivers/platform/x86/inspur-wmi.c 68 69 /** > 70 * Set Power Mode to EC RAM. If Power Mode value greater than 0x3, 71 * return error 72 * Method ID: 0x3 73 * Arg: 4 Bytes 74 * Byte [0]: Power Mode: 75 * 0x0: Balance Mode 76 * 0x1: Performance Mode 77 * 0x2: Power Saver Mode 78 * Return Value: 4 Bytes 79 * Byte [0]: Return Code 80 * 0x0: No Error 81 * 0x1: Error 82 */ 83 static ssize_t powermode_store(struct device *dev, 84 struct device_attribute *attr, 85 const char *buf, size_t count) 86 { 87 struct inspur_wmi_priv *priv = dev_get_drvdata(dev); 88 int ret; 89 u32 mode; 90 u8 *ret_code; 91 92 ret = kstrtoint(buf, 0, &mode); 93 if (ret) 94 return ret; 95 96 ret = inspur_wmi_perform_query(priv->wdev, 97 INSPUR_WMI_SET_POWERMODE, 98 &mode, sizeof(mode), sizeof(mode)); 99 100 if (ret < 0) 101 return ret; 102 103 ret_code = (u8 *)(&mode); 104 if (ret_code[0]) 105 return -EBADRQC; 106 107 return count; 108 } 109 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki