Hi Jordan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next drm/drm-next tegra-drm/drm/tegra/for-next v5.17-rc3 next-20220207] [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] url: https://github.com/0day-ci/linux/commits/Jordan-Justen/GuC-HWCONFIG-with-documentation/20220208-032950 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-m021-20220207 (https://download.01.org/0day-ci/archive/20220208/202202080601.vp3JG4Dh-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/c122b0dea958e76766ce9b4b9f34d2eed16fb566 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jordan-Justen/GuC-HWCONFIG-with-documentation/20220208-032950 git checkout c122b0dea958e76766ce9b4b9f34d2eed16fb566 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c: In function 'verify_hwconfig_blob': >> drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:79:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 79 | struct drm_i915_query_hwconfig_blob_item *pos = hwconfig->ptr; | ^~~~~~ vim +79 drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c 73 74 static int verify_hwconfig_blob(const struct intel_guc_hwconfig *hwconfig) 75 { 76 if (hwconfig->size % 4 != 0 || hwconfig->ptr == NULL) 77 return -EINVAL; 78 > 79 struct drm_i915_query_hwconfig_blob_item *pos = hwconfig->ptr; 80 u32 remaining = (hwconfig->size / 4); 81 while (remaining > 0) { 82 if (remaining < 2) 83 return -EINVAL; 84 if (pos->length > remaining - 2) 85 return -EINVAL; 86 remaining -= 2 + pos->length; 87 pos = (void *)&pos->data[pos->length]; 88 } 89 90 DRM_INFO("hwconfig blob format appears valid\n"); 91 return 0; 92 } 93 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
