Hi Rodrigo, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d01f2f7e35573049673b71e18be7abfe3f80323f commit: 3bef92ca4240781399cfab1e844061b80b64a96c [11672/12657] drm/amd/display: Add vupdate_no_lock interrupts for DCN2.1 config: x86_64-randconfig-r003-20210225 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b889ef4214bc6dc8880fdd4badc0dcd9a3197753) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3bef92ca4240781399cfab1e844061b80b64a96c git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 3bef92ca4240781399cfab1e844061b80b64a96c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:43:20: warning: no previous prototype for function 'to_dal_irq_source_dcn21' [-Wmissing-prototypes] enum dc_irq_source to_dal_irq_source_dcn21( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:43:1: note: declare 'static' if the function is not intended to be used outside of this translation unit enum dc_irq_source to_dal_irq_source_dcn21( ^ static >> drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:357:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(0), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:351:2: note: previous initialization is here vupdate_int_entry(0), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:358:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(1), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:352:2: note: previous initialization is here vupdate_int_entry(1), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:359:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(2), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:353:2: note: previous initialization is here vupdate_int_entry(2), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:360:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(3), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:354:2: note: previous initialization is here vupdate_int_entry(3), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:361:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(4), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:355:2: note: previous initialization is here vupdate_int_entry(4), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:362:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] vupdate_no_lock_int_entry(5), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:242:39: note: expanded from macro 'vupdate_no_lock_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:356:2: note: previous initialization is here vupdate_int_entry(5), ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:231:39: note: expanded from macro 'vupdate_int_entry' [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ ^~ 7 warnings generated. vim +357 drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c 278 279 static const struct irq_source_info 280 irq_source_info_dcn21[DAL_IRQ_SOURCES_NUMBER] = { 281 [DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(), 282 hpd_int_entry(0), 283 hpd_int_entry(1), 284 hpd_int_entry(2), 285 hpd_int_entry(3), 286 hpd_int_entry(4), 287 hpd_rx_int_entry(0), 288 hpd_rx_int_entry(1), 289 hpd_rx_int_entry(2), 290 hpd_rx_int_entry(3), 291 hpd_rx_int_entry(4), 292 i2c_int_entry(1), 293 i2c_int_entry(2), 294 i2c_int_entry(3), 295 i2c_int_entry(4), 296 i2c_int_entry(5), 297 i2c_int_entry(6), 298 dp_sink_int_entry(1), 299 dp_sink_int_entry(2), 300 dp_sink_int_entry(3), 301 dp_sink_int_entry(4), 302 dp_sink_int_entry(5), 303 dp_sink_int_entry(6), 304 [DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(), 305 pflip_int_entry(0), 306 pflip_int_entry(1), 307 pflip_int_entry(2), 308 pflip_int_entry(3), 309 [DC_IRQ_SOURCE_PFLIP5] = dummy_irq_entry(), 310 [DC_IRQ_SOURCE_PFLIP6] = dummy_irq_entry(), 311 [DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(), 312 gpio_pad_int_entry(0), 313 gpio_pad_int_entry(1), 314 gpio_pad_int_entry(2), 315 gpio_pad_int_entry(3), 316 gpio_pad_int_entry(4), 317 gpio_pad_int_entry(5), 318 gpio_pad_int_entry(6), 319 gpio_pad_int_entry(7), 320 gpio_pad_int_entry(8), 321 gpio_pad_int_entry(9), 322 gpio_pad_int_entry(10), 323 gpio_pad_int_entry(11), 324 gpio_pad_int_entry(12), 325 gpio_pad_int_entry(13), 326 gpio_pad_int_entry(14), 327 gpio_pad_int_entry(15), 328 gpio_pad_int_entry(16), 329 gpio_pad_int_entry(17), 330 gpio_pad_int_entry(18), 331 gpio_pad_int_entry(19), 332 gpio_pad_int_entry(20), 333 gpio_pad_int_entry(21), 334 gpio_pad_int_entry(22), 335 gpio_pad_int_entry(23), 336 gpio_pad_int_entry(24), 337 gpio_pad_int_entry(25), 338 gpio_pad_int_entry(26), 339 gpio_pad_int_entry(27), 340 gpio_pad_int_entry(28), 341 gpio_pad_int_entry(29), 342 gpio_pad_int_entry(30), 343 dc_underflow_int_entry(1), 344 dc_underflow_int_entry(2), 345 dc_underflow_int_entry(3), 346 dc_underflow_int_entry(4), 347 dc_underflow_int_entry(5), 348 dc_underflow_int_entry(6), 349 [DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(), 350 [DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(), 351 vupdate_int_entry(0), 352 vupdate_int_entry(1), 353 vupdate_int_entry(2), 354 vupdate_int_entry(3), 355 vupdate_int_entry(4), 356 vupdate_int_entry(5), > 357 vupdate_no_lock_int_entry(0), 358 vupdate_no_lock_int_entry(1), 359 vupdate_no_lock_int_entry(2), 360 vupdate_no_lock_int_entry(3), 361 vupdate_no_lock_int_entry(4), 362 vupdate_no_lock_int_entry(5), 363 vblank_int_entry(0), 364 vblank_int_entry(1), 365 vblank_int_entry(2), 366 vblank_int_entry(3), 367 vblank_int_entry(4), 368 vblank_int_entry(5), 369 }; 370 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