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15:30:30 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 4/8] ACPI: CPPC: add APIs and sysfs interface for min/max_perf To: kernel test robot , rafael@kernel.org, viresh.kumar@linaro.org, lenb@kernel.org, robert.moore@intel.com, corbet@lwn.net, pierre.gondois@arm.com, zhenglifeng1@huawei.com, rdunlap@infradead.org, ray.huang@amd.com, gautham.shenoy@amd.com, mario.limonciello@amd.com, perry.yuan@amd.com, ionela.voinescu@arm.com, zhanjie9@hisilicon.com, linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org, acpica-devel@lists.linux.dev, linux-kernel@vger.kernel.org, sumitg@nvidia.com Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-tegra@vger.kernel.org, treding@nvidia.com, jonathanh@nvidia.com, vsethi@nvidia.com, ksitaraman@nvidia.com, sanjayc@nvidia.com, nhartman@nvidia.com, bbasu@nvidia.com References: <20251105113844.4086250-5-sumitg@nvidia.com> <202511061802.lIq09jwh-lkp@intel.com> Content-Language: en-US From: Sumit Gupta 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mRcxtKUdSq4PMFLltOBpnVixNYU+FQhsLv83I7Ho1bL3mz7FSegKuzgEocDRHJ3nNnHR5/lAsfqojvIOjuEPrw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4354 On 06/11/25 16:00, kernel test robot wrote: > External email: Use caution opening links or attachments > > > Hi Sumit, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on rafael-pm/linux-next] > [also build test WARNING on rafael-pm/bleeding-edge linus/master v6.18-rc4 next-20251106] > [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/Sumit-Gupta/cpufreq-CPPC-Add-generic-helpers-for-sysfs-show-store/20251105-194715 > base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next > patch link: https://lore.kernel.org/r/20251105113844.4086250-5-sumitg%40nvidia.com > patch subject: [PATCH v4 4/8] ACPI: CPPC: add APIs and sysfs interface for min/max_perf > config: riscv-defconfig (https://download.01.org/0day-ci/archive/20251106/202511061802.lIq09jwh-lkp@intel.com/config) > compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project d2625a438020ad35330cda29c3def102c1687b1b) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251106/202511061802.lIq09jwh-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/202511061802.lIq09jwh-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > >>> Warning: drivers/cpufreq/cppc_cpufreq.c:954 function parameter 'policy' not described in 'show_min_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:954 function parameter 'buf' not described in 'show_min_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:976 function parameter 'policy' not described in 'store_min_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:976 function parameter 'buf' not described in 'store_min_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:976 function parameter 'count' not described in 'store_min_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:1003 function parameter 'policy' not described in 'show_max_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:1003 function parameter 'buf' not described in 'show_max_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:1025 function parameter 'policy' not described in 'store_max_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:1025 function parameter 'buf' not described in 'store_max_perf' >>> Warning: drivers/cpufreq/cppc_cpufreq.c:1025 function parameter 'count' not described in 'store_max_perf' > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki Thank you for the report. Below change to comments seem to be fixing this warning. -------------------------------------------------------   /**   * show_min_perf - Show minimum performance as frequency (kHz) + * @policy: cpufreq policy + * @buf: buffer to write the frequency value to   *   * Reads the MIN_PERF register and converts the performance value to   * frequency (kHz) for user-space consumption. @@ -1117,6 +1119,9 @@ static ssize_t show_min_perf(struct cpufreq_policy *policy, char *buf)  /**   * store_min_perf - Set minimum performance from frequency (kHz) + * @policy: cpufreq policy + * @buf: buffer to write the frequency value to + * @count: size of @buf   *   * Converts the user-provided frequency (kHz) to a performance value   * and writes it to the MIN_PERF register. @@ -1144,6 +1149,8 @@ static ssize_t store_min_perf(struct cpufreq_policy *policy, const char *buf, si  /**   * show_max_perf - Show maximum performance as frequency (kHz) + * @policy: cpufreq policy + * @buf: buffer to write the frequency value to   *   * Reads the MAX_PERF register and converts the performance value to   * frequency (kHz) for user-space consumption. @@ -1166,6 +1173,9 @@ static ssize_t show_max_perf(struct cpufreq_policy *policy, char *buf)  /**   * store_max_perf - Set maximum performance from frequency (kHz) + * @policy: cpufreq policy + * @buf: buffer to write the frequency value to + * @count: size of @buf ------------------------------------------------------- Thank you, Sumit Gupta