Hi Hans, I love your patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v5.8-rc4] [cannot apply to drm-intel/for-linux-next drm-tip/drm-tip next-20200708] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Hans-de-Goede/drm-Add-privacy-screen-class-and-connector-properties/20200709-004703 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dcde237b9b0eb1d19306e6f48c0a4e058907619f config: riscv-randconfig-s031-20200708 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-37-gc9676a3b-dirty # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): riscv64-linux-ld: drivers/gpu/drm/drm_connector.o: in function `drm_connector_register': >> drivers/gpu/drm/drm_connector.c:533: undefined reference to >> `drm_privacy_screen_register_notifier' riscv64-linux-ld: drivers/gpu/drm/drm_connector.o: in function `drm_connector_unregister': >> drivers/gpu/drm/drm_connector.c:567: undefined reference to >> `drm_privacy_screen_unregister_notifier' riscv64-linux-ld: drivers/gpu/drm/drm_connector.o: in function `drm_connector_set_link_status_property': >> drivers/gpu/drm/drm_connector.c:2076: undefined reference to >> `drm_privacy_screen_get_state' riscv64-linux-ld: drivers/gpu/drm/drm_connector.o: in function `drm_connector_privacy_screen_notifier': >> drivers/gpu/drm/drm_connector.c:2299: undefined reference to >> `drm_privacy_screen_set_sw_state' riscv64-linux-ld: drivers/gpu/drm/drm_connector.o: in function `drm_tile_group_free': >> drivers/gpu/drm/drm_connector.c:2586: undefined reference to >> `drm_privacy_screen_put' vim +533 drivers/gpu/drm/drm_connector.c 52217195176115 Daniel Vetter 2016-08-12 495 52217195176115 Daniel Vetter 2016-08-12 496 /** 52217195176115 Daniel Vetter 2016-08-12 497 * drm_connector_register - register a connector 52217195176115 Daniel Vetter 2016-08-12 498 * @connector: the connector to register 52217195176115 Daniel Vetter 2016-08-12 499 * 69b22f51e6644b Daniel Vetter 2019-09-17 500 * Register userspace interfaces for a connector. Only call this for connectors 69b22f51e6644b Daniel Vetter 2019-09-17 501 * which can be hotplugged after drm_dev_register() has been called already, 69b22f51e6644b Daniel Vetter 2019-09-17 502 * e.g. DP MST connectors. All other connectors will be registered automatically 69b22f51e6644b Daniel Vetter 2019-09-17 503 * when calling drm_dev_register(). 52217195176115 Daniel Vetter 2016-08-12 504 * 52217195176115 Daniel Vetter 2016-08-12 505 * Returns: 52217195176115 Daniel Vetter 2016-08-12 506 * Zero on success, error code on failure. 52217195176115 Daniel Vetter 2016-08-12 507 */ 52217195176115 Daniel Vetter 2016-08-12 508 int drm_connector_register(struct drm_connector *connector) 52217195176115 Daniel Vetter 2016-08-12 509 { e73ab00e9a0f17 Daniel Vetter 2016-12-18 510 int ret = 0; 52217195176115 Daniel Vetter 2016-08-12 511 e6e7b48b295afa Daniel Vetter 2017-01-12 512 if (!connector->dev->registered) e6e7b48b295afa Daniel Vetter 2017-01-12 513 return 0; e6e7b48b295afa Daniel Vetter 2017-01-12 514 e73ab00e9a0f17 Daniel Vetter 2016-12-18 515 mutex_lock(&connector->mutex); 39b50c603878f4 Lyude Paul 2018-10-16 516 if (connector->registration_state != DRM_CONNECTOR_INITIALIZING) e73ab00e9a0f17 Daniel Vetter 2016-12-18 517 goto unlock; 52217195176115 Daniel Vetter 2016-08-12 518 52217195176115 Daniel Vetter 2016-08-12 519 ret = drm_sysfs_connector_add(connector); 52217195176115 Daniel Vetter 2016-08-12 520 if (ret) e73ab00e9a0f17 Daniel Vetter 2016-12-18 521 goto unlock; 52217195176115 Daniel Vetter 2016-08-12 522 b792e64021ecde Greg Kroah-Hartman 2019-06-13 523 drm_debugfs_connector_add(connector); 52217195176115 Daniel Vetter 2016-08-12 524 52217195176115 Daniel Vetter 2016-08-12 525 if (connector->funcs->late_register) { 52217195176115 Daniel Vetter 2016-08-12 526 ret = connector->funcs->late_register(connector); 52217195176115 Daniel Vetter 2016-08-12 527 if (ret) 52217195176115 Daniel Vetter 2016-08-12 528 goto err_debugfs; 52217195176115 Daniel Vetter 2016-08-12 529 } 52217195176115 Daniel Vetter 2016-08-12 530 52217195176115 Daniel Vetter 2016-08-12 531 drm_mode_object_register(connector->dev, &connector->base); 52217195176115 Daniel Vetter 2016-08-12 532 39b50c603878f4 Lyude Paul 2018-10-16 @533 connector->registration_state = DRM_CONNECTOR_REGISTERED; 968d81a64a883a Jeykumar Sankaran 2020-06-02 534 968d81a64a883a Jeykumar Sankaran 2020-06-02 535 /* Let userspace know we have a new connector */ 968d81a64a883a Jeykumar Sankaran 2020-06-02 536 drm_sysfs_hotplug_event(connector->dev); 968d81a64a883a Jeykumar Sankaran 2020-06-02 537 3823adf8dc676e Hans de Goede 2020-07-08 538 if (connector->privacy_screen) 3823adf8dc676e Hans de Goede 2020-07-08 539 drm_privacy_screen_register_notifier(connector->privacy_screen, 3823adf8dc676e Hans de Goede 2020-07-08 540 &connector->privacy_screen_notifier); 3823adf8dc676e Hans de Goede 2020-07-08 541 e73ab00e9a0f17 Daniel Vetter 2016-12-18 542 goto unlock; 52217195176115 Daniel Vetter 2016-08-12 543 52217195176115 Daniel Vetter 2016-08-12 544 err_debugfs: 52217195176115 Daniel Vetter 2016-08-12 545 drm_debugfs_connector_remove(connector); 52217195176115 Daniel Vetter 2016-08-12 546 drm_sysfs_connector_remove(connector); e73ab00e9a0f17 Daniel Vetter 2016-12-18 547 unlock: e73ab00e9a0f17 Daniel Vetter 2016-12-18 548 mutex_unlock(&connector->mutex); 52217195176115 Daniel Vetter 2016-08-12 549 return ret; 52217195176115 Daniel Vetter 2016-08-12 550 } 52217195176115 Daniel Vetter 2016-08-12 551 EXPORT_SYMBOL(drm_connector_register); 52217195176115 Daniel Vetter 2016-08-12 552 52217195176115 Daniel Vetter 2016-08-12 553 /** 52217195176115 Daniel Vetter 2016-08-12 554 * drm_connector_unregister - unregister a connector 52217195176115 Daniel Vetter 2016-08-12 555 * @connector: the connector to unregister 52217195176115 Daniel Vetter 2016-08-12 556 * 69b22f51e6644b Daniel Vetter 2019-09-17 557 * Unregister userspace interfaces for a connector. Only call this for 69b22f51e6644b Daniel Vetter 2019-09-17 558 * connectors which have registered explicitly by calling drm_dev_register(), 69b22f51e6644b Daniel Vetter 2019-09-17 559 * since connectors are unregistered automatically when drm_dev_unregister() is 69b22f51e6644b Daniel Vetter 2019-09-17 560 * called. 52217195176115 Daniel Vetter 2016-08-12 561 */ 52217195176115 Daniel Vetter 2016-08-12 562 void drm_connector_unregister(struct drm_connector *connector) 52217195176115 Daniel Vetter 2016-08-12 563 { e73ab00e9a0f17 Daniel Vetter 2016-12-18 564 mutex_lock(&connector->mutex); 39b50c603878f4 Lyude Paul 2018-10-16 565 if (connector->registration_state != DRM_CONNECTOR_REGISTERED) { e73ab00e9a0f17 Daniel Vetter 2016-12-18 566 mutex_unlock(&connector->mutex); 52217195176115 Daniel Vetter 2016-08-12 @567 return; e73ab00e9a0f17 Daniel Vetter 2016-12-18 568 } 52217195176115 Daniel Vetter 2016-08-12 569 3823adf8dc676e Hans de Goede 2020-07-08 570 if (connector->privacy_screen) 3823adf8dc676e Hans de Goede 2020-07-08 571 drm_privacy_screen_unregister_notifier( 3823adf8dc676e Hans de Goede 2020-07-08 572 connector->privacy_screen, 3823adf8dc676e Hans de Goede 2020-07-08 573 &connector->privacy_screen_notifier); 3823adf8dc676e Hans de Goede 2020-07-08 574 52217195176115 Daniel Vetter 2016-08-12 575 if (connector->funcs->early_unregister) 52217195176115 Daniel Vetter 2016-08-12 576 connector->funcs->early_unregister(connector); 52217195176115 Daniel Vetter 2016-08-12 577 52217195176115 Daniel Vetter 2016-08-12 578 drm_sysfs_connector_remove(connector); 52217195176115 Daniel Vetter 2016-08-12 579 drm_debugfs_connector_remove(connector); 52217195176115 Daniel Vetter 2016-08-12 580 39b50c603878f4 Lyude Paul 2018-10-16 581 connector->registration_state = DRM_CONNECTOR_UNREGISTERED; e73ab00e9a0f17 Daniel Vetter 2016-12-18 582 mutex_unlock(&connector->mutex); 52217195176115 Daniel Vetter 2016-08-12 583 } 52217195176115 Daniel Vetter 2016-08-12 584 EXPORT_SYMBOL(drm_connector_unregister); 52217195176115 Daniel Vetter 2016-08-12 585 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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