Hi Lyude, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.18-rc7 next-20180727] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Lyude-Paul/drm-nouveau-Print-debug-message-on-ACPI-probe-event/20180731-150343 config: arm-multi_v7_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=arm All errors (new ones prefixed by >>): In file included from include/linux/kernel.h:10:0, from include/linux/list.h:9, from include/linux/agp_backend.h:33, from include/drm/drmP.h:35, from drivers/gpu/drm/nouveau/nouveau_display.c:28: drivers/gpu/drm/nouveau/nouveau_display.c: In function 'nouveau_display_init': >> drivers/gpu/drm/nouveau/nouveau_display.c:431:16: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, false); ^ include/linux/compiler.h:275:17: note: in definition of macro 'WRITE_ONCE' union { typeof(x) __val; char __c[1]; } __u = \ ^ >> drivers/gpu/drm/nouveau/nouveau_display.c:431:16: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, false); ^ include/linux/compiler.h:276:30: note: in definition of macro 'WRITE_ONCE' { .__val = (__force typeof(x)) (val) }; \ ^ >> drivers/gpu/drm/nouveau/nouveau_display.c:431:16: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, false); ^ include/linux/compiler.h:277:22: note: in definition of macro 'WRITE_ONCE' __write_once_size(&(x), __u.__c, sizeof(x)); \ ^ >> drivers/gpu/drm/nouveau/nouveau_display.c:431:16: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, false); ^ include/linux/compiler.h:277:42: note: in definition of macro 'WRITE_ONCE' __write_once_size(&(x), __u.__c, sizeof(x)); \ ^ drivers/gpu/drm/nouveau/nouveau_display.c: In function 'nouveau_display_fini': drivers/gpu/drm/nouveau/nouveau_display.c:458:17: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, true); ^ include/linux/compiler.h:275:17: note: in definition of macro 'WRITE_ONCE' union { typeof(x) __val; char __c[1]; } __u = \ ^ drivers/gpu/drm/nouveau/nouveau_display.c:458:17: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, true); ^ include/linux/compiler.h:276:30: note: in definition of macro 'WRITE_ONCE' { .__val = (__force typeof(x)) (val) }; \ ^ drivers/gpu/drm/nouveau/nouveau_display.c:458:17: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, true); ^ include/linux/compiler.h:277:22: note: in definition of macro 'WRITE_ONCE' __write_once_size(&(x), __u.__c, sizeof(x)); \ ^ drivers/gpu/drm/nouveau/nouveau_display.c:458:17: error: 'struct nouveau_drm' has no member named 'acpi_hpd_enabled' WRITE_ONCE(drm->acpi_hpd_enabled, true); ^ include/linux/compiler.h:277:42: note: in definition of macro 'WRITE_ONCE' __write_once_size(&(x), __u.__c, sizeof(x)); \ ^ vim +431 drivers/gpu/drm/nouveau/nouveau_display.c 404 405 int 406 nouveau_display_init(struct drm_device *dev, bool runtime) 407 { 408 struct nouveau_display *disp = nouveau_display(dev); 409 struct nouveau_drm *drm = nouveau_drm(dev); 410 struct drm_connector *connector; 411 struct drm_connector_list_iter conn_iter; 412 int ret; 413 414 ret = disp->init(dev); 415 if (ret) 416 return ret; 417 418 /* enable hotplug interrupts */ 419 drm_connector_list_iter_begin(dev, &conn_iter); 420 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 421 struct nouveau_connector *conn = nouveau_connector(connector); 422 nvif_notify_get(&conn->hpd); 423 } 424 drm_connector_list_iter_end(&conn_iter); 425 426 /* disable ACPI hotplug handling to prevent duplicate connector 427 * probes 428 * FIXME: make sure that WRITE_ONCE() implies a store barrier 429 * beforehand 430 */ > 431 WRITE_ONCE(drm->acpi_hpd_enabled, false); 432 433 /* enable flip completion events */ 434 nvif_notify_get(&drm->flip); 435 return ret; 436 } 437 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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