Hi Alan, 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/drm-next next-20220225] [cannot apply to drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next airlied/drm-next v5.17-rc5] [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/Alan-Previn/Add-GuC-Error-Capture-Support/20220226-135414 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220226/202202261716.Sl8xnkv3-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/4c1018d0e536adbe13cf0b71049b0a94073eec7e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Alan-Previn/Add-GuC-Error-Capture-Support/20220226-135414 git checkout 4c1018d0e536adbe13cf0b71049b0a94073eec7e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 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_capture.c:222:1: warning: no previous prototype for function 'intel_guc_capture_getlistsize' [-Wmissing-prototypes] intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, ^ drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:221:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static >> drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:252:1: warning: no previous prototype for function 'intel_guc_capture_getlist' [-Wmissing-prototypes] intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, ^ drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:251:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static >> drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:321:6: warning: no previous prototype for function 'intel_guc_capture_destroy' [-Wmissing-prototypes] void intel_guc_capture_destroy(struct intel_guc *guc) ^ drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:321:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void intel_guc_capture_destroy(struct intel_guc *guc) ^ static >> drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:332:5: warning: no previous prototype for function 'intel_guc_capture_init' [-Wmissing-prototypes] int intel_guc_capture_init(struct intel_guc *guc) ^ drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c:332:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int intel_guc_capture_init(struct intel_guc *guc) ^ static 4 warnings generated. vim +/intel_guc_capture_getlistsize +222 drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c 220 221 int > 222 intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, 223 size_t *size) 224 { 225 struct drm_i915_private *i915 = guc_to_gt(guc)->i915; 226 struct __guc_state_capture_priv *gc = guc->capture.priv; 227 struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; 228 int num_regs; 229 230 if (!gc->reglists) 231 return -ENODEV; 232 233 if (cache->is_valid) { 234 *size = cache->size; 235 return cache->status; 236 } 237 238 num_regs = guc_cap_list_num_regs(gc, owner, type, classid); 239 if (!num_regs) { 240 guc_capture_warn_with_list_info(i915, "Missing register list size", 241 owner, type, classid); 242 return -ENODATA; 243 } 244 245 *size = PAGE_ALIGN((sizeof(struct guc_debug_capture_list)) + 246 (num_regs * sizeof(struct guc_mmio_reg))); 247 248 return 0; 249 } 250 251 int > 252 intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, 253 void **listptr) 254 { 255 struct __guc_state_capture_priv *gc = guc->capture.priv; 256 struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; 257 struct guc_debug_capture_list *listnode; 258 u8 *caplist, *tmp; 259 size_t size = 0; 260 int ret, num_regs; 261 262 if (!gc->reglists) 263 return -ENODEV; 264 265 if (cache->is_valid) { 266 *listptr = cache->list; 267 return cache->status; 268 } 269 270 ret = intel_guc_capture_getlistsize(guc, owner, type, classid, &size); 271 if (ret) { 272 cache->list = NULL; 273 cache->size = 0; 274 cache->status = ret; 275 cache->is_valid = true; 276 return ret; 277 } 278 279 caplist = kzalloc(size, GFP_KERNEL); 280 if (!caplist) 281 return -ENOMEM; 282 283 /* populate capture list header */ 284 tmp = caplist; 285 num_regs = guc_cap_list_num_regs(guc->capture.priv, owner, type, classid); 286 listnode = (struct guc_debug_capture_list *)tmp; 287 listnode->header.info = FIELD_PREP(GUC_CAPTURELISTHDR_NUMDESCR, (u32)num_regs); 288 289 /* populate list of register descriptor */ 290 tmp += sizeof(struct guc_debug_capture_list); 291 guc_capture_list_init(guc, owner, type, classid, (struct guc_mmio_reg *)tmp, num_regs); 292 293 /* cache this list */ 294 cache->list = caplist; 295 cache->size = size; 296 cache->status = 0; 297 cache->is_valid = true; 298 299 *listptr = caplist; 300 301 return 0; 302 } 303 304 static void 305 guc_capture_free_ads_cache(struct __guc_state_capture_priv *gc) 306 { 307 int i, j, k; 308 struct __guc_capture_ads_cache *cache; 309 310 for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; ++i) { 311 for (j = 0; j < GUC_CAPTURE_LIST_TYPE_MAX; ++j) { 312 for (k = 0; k < GUC_MAX_ENGINE_CLASSES; ++k) { 313 cache = &gc->ads_cache[i][j][k]; 314 if (cache->is_valid && cache->list) 315 kfree(cache->list); 316 } 317 } 318 } 319 } 320 > 321 void intel_guc_capture_destroy(struct intel_guc *guc) 322 { 323 if (!guc->capture.priv) 324 return; 325 326 guc_capture_free_ads_cache(guc->capture.priv); 327 328 kfree(guc->capture.priv); 329 guc->capture.priv = NULL; 330 } 331 > 332 int intel_guc_capture_init(struct intel_guc *guc) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
