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Peter Anvin" , linux-kernel@vger.kernel.org, "Mario Limonciello (AMD)" Subject: Re: [PATCH 3/5] firmware: dmi: Read additional information when decoding DMI table Message-ID: <202512151555.bDb36bV2-lkp@intel.com> References: <20251214185309.152614-4-superm1@kernel.org> 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: <20251214185309.152614-4-superm1@kernel.org> Hi Mario, kernel test robot noticed the following build warnings: [auto build test WARNING on tip/master] [also build test WARNING on linus/master tip/auto-latest v6.19-rc1 next-20251215] [cannot apply to tip/x86/core] [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/Mario-Limonciello-AMD/firmware-dmi-Correct-an-indexing-error-in-dmi-h/20251215-025606 base: tip/master patch link: https://lore.kernel.org/r/20251214185309.152614-4-superm1%40kernel.org patch subject: [PATCH 3/5] firmware: dmi: Read additional information when decoding DMI table config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20251215/202512151555.bDb36bV2-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251215/202512151555.bDb36bV2-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/202512151555.bDb36bV2-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/firmware/dmi_scan.c:398:14: warning: variable 'strings' set but not used [-Wunused-but-set-variable] 398 | const char *strings; | ^ >> drivers/firmware/dmi_scan.c:400:6: warning: variable 'count' set but not used [-Wunused-but-set-variable] 400 | int count = 0; | ^ 2 warnings generated. vim +/count +400 drivers/firmware/dmi_scan.c 395 396 static void __init dmi_save_additional(const struct dmi_additional_info *info) 397 { 398 const char *strings; 399 const u8 *data; > 400 int count = 0; 401 int i; 402 403 if (!info || info->header.length < 5 + info->count * 5) 404 return; 405 406 data = info->entries; 407 strings = (const char *)(data + info->count * 5); 408 409 for (i = 0; i < info->count; i++) { 410 u8 entry_length = data[i * 5]; 411 u8 string_num = data[i * 5 + 4]; 412 const char *string_ptr; 413 char *value; 414 int len; 415 416 if (entry_length < 5 || string_num == 0) 417 continue; 418 419 string_ptr = dmi_string_nosave(&info->header, string_num); 420 if (!string_ptr || !*string_ptr) 421 continue; 422 423 len = strlen(string_ptr); 424 if (len == 0) 425 continue; 426 427 value = dmi_alloc(len + 1); 428 if (!value) 429 continue; 430 431 strscpy(value, string_ptr, len + 1); 432 433 dmi_save_one_device(DMI_DEV_TYPE_ADDITIONAL, value); 434 count++; 435 } 436 } 437 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki