drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:632:6: warning: no previous prototype for 'dmub_aux_setconfig_callback'
From: kernel test robot
Date: Thu Nov 25 2021 - 22:03:29 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8ced7ca3570333998ad2088d5a6275701970e28e
commit: e27c41d5b0681c597ac1894f4e02cf626e062250 drm/amd/display: Support for DMUB HPD interrupt handling
date: 3 months ago
config: powerpc64-buildonly-randconfig-r004-20211026 (https://download.01.org/0day-ci/archive/20211126/202111261000.OurVD8yZ-lkp@xxxxxxxxx/config)
compiler: powerpc64-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e27c41d5b0681c597ac1894f4e02cf626e062250
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e27c41d5b0681c597ac1894f4e02cf626e062250
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc
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/amdgpu_dm/amdgpu_dm.c:632:6: warning: no previous prototype for 'dmub_aux_setconfig_callback' [-Wmissing-prototypes]
632 | void dmub_aux_setconfig_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:648:6: warning: no previous prototype for 'dmub_hpd_callback' [-Wmissing-prototypes]
648 | void dmub_hpd_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
| ^~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:702:6: warning: no previous prototype for 'register_dmub_notify_callback' [-Wmissing-prototypes]
702 | bool register_dmub_notify_callback(struct amdgpu_device *adev, enum dmub_notification_type type,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/dmub_aux_setconfig_callback +632 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c
622
623 /**
624 * dmub_aux_setconfig_reply_callback - Callback for AUX or SET_CONFIG command.
625 * @adev: amdgpu_device pointer
626 * @notify: dmub notification structure
627 *
628 * Dmub AUX or SET_CONFIG command completion processing callback
629 * Copies dmub notification to DM which is to be read by AUX command.
630 * issuing thread and also signals the event to wake up the thread.
631 */
> 632 void dmub_aux_setconfig_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
633 {
634 if (adev->dm.dmub_notify)
635 memcpy(adev->dm.dmub_notify, notify, sizeof(struct dmub_notification));
636 if (notify->type == DMUB_NOTIFICATION_AUX_REPLY)
637 complete(&adev->dm.dmub_aux_transfer_done);
638 }
639
640 /**
641 * dmub_hpd_callback - DMUB HPD interrupt processing callback.
642 * @adev: amdgpu_device pointer
643 * @notify: dmub notification structure
644 *
645 * Dmub Hpd interrupt processing callback. Gets displayindex through the
646 * ink index and calls helper to do the processing.
647 */
> 648 void dmub_hpd_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
649 {
650 struct amdgpu_dm_connector *aconnector;
651 struct drm_connector *connector;
652 struct drm_connector_list_iter iter;
653 struct dc_link *link;
654 uint8_t link_index = 0;
655 struct drm_device *dev = adev->dm.ddev;
656
657 if (adev == NULL)
658 return;
659
660 if (notify == NULL) {
661 DRM_ERROR("DMUB HPD callback notification was NULL");
662 return;
663 }
664
665 if (notify->link_index > adev->dm.dc->link_count) {
666 DRM_ERROR("DMUB HPD index (%u)is abnormal", notify->link_index);
667 return;
668 }
669
670 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
671
672 link_index = notify->link_index;
673
674 link = adev->dm.dc->links[link_index];
675
676 drm_connector_list_iter_begin(dev, &iter);
677 drm_for_each_connector_iter(connector, &iter) {
678 aconnector = to_amdgpu_dm_connector(connector);
679 if (link && aconnector->dc_link == link) {
680 DRM_INFO("DMUB HPD callback: link_index=%u\n", link_index);
681 handle_hpd_irq_helper(aconnector);
682 break;
683 }
684 }
685 drm_connector_list_iter_end(&iter);
686 drm_modeset_unlock(&dev->mode_config.connection_mutex);
687
688 }
689
690 /**
691 * register_dmub_notify_callback - Sets callback for DMUB notify
692 * @adev: amdgpu_device pointer
693 * @type: Type of dmub notification
694 * @callback: Dmub interrupt callback function
695 * @dmub_int_thread_offload: offload indicator
696 *
697 * API to register a dmub callback handler for a dmub notification
698 * Also sets indicator whether callback processing to be offloaded.
699 * to dmub interrupt handling thread
700 * Return: true if successfully registered, false if there is existing registration
701 */
> 702 bool register_dmub_notify_callback(struct amdgpu_device *adev, enum dmub_notification_type type,
703 dmub_notify_interrupt_callback_t callback, bool dmub_int_thread_offload)
704 {
705 if (callback != NULL && type < ARRAY_SIZE(adev->dm.dmub_thread_offload)) {
706 adev->dm.dmub_callback[type] = callback;
707 adev->dm.dmub_thread_offload[type] = dmub_int_thread_offload;
708 } else
709 return false;
710
711 return true;
712 }
713
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx