* [linux-next:master 4682/4750] drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:1777:8: error: implicit declaration of function 'drm_fb_helper_gem_is_fb'; did you mean 'drm_fb_helper_from_client'?
@ 2026-03-09 23:40 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-03-09 23:40 UTC (permalink / raw)
To: Alex Deucher; +Cc: oe-kbuild-all, Mark Brown
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 343f51842f4ed7143872f3aa116a214a5619a4b9
commit: 99ece3600fdb60fef87268c6c05c66e5d02dbeb4 [4682/4750] Merge branch 'drm-next' of https://gitlab.freedesktop.org/agd5f/linux.git
config: powerpc-randconfig-001-20260310 (https://download.01.org/0day-ci/archive/20260310/202603100736.KcTrzKrn-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260310/202603100736.KcTrzKrn-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603100736.KcTrzKrn-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c: In function 'amdgpu_display_suspend_helper':
>> drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:1777:8: error: implicit declaration of function 'drm_fb_helper_gem_is_fb'; did you mean 'drm_fb_helper_from_client'? [-Werror=implicit-function-declaration]
1777 | if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) {
| ^~~~~~~~~~~~~~~~~~~~~~~
| drm_fb_helper_from_client
cc1: some warnings being treated as errors
vim +1777 drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1740
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1741 int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1742 {
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1743 struct drm_device *dev = adev_to_drm(adev);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1744 struct drm_crtc *crtc;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1745 struct drm_connector *connector;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1746 struct drm_connector_list_iter iter;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1747 int r;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1748
c69d51395a3bd39 Guchun Chen 2023-03-09 1749 drm_kms_helper_poll_disable(dev);
c69d51395a3bd39 Guchun Chen 2023-03-09 1750
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1751 /* turn off display hw */
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1752 drm_modeset_lock_all(dev);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1753 drm_connector_list_iter_begin(dev, &iter);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1754 drm_for_each_connector_iter(connector, &iter)
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1755 drm_helper_connector_dpms(connector,
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1756 DRM_MODE_DPMS_OFF);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1757 drm_connector_list_iter_end(&iter);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1758 drm_modeset_unlock_all(dev);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1759 /* unpin the front buffers and cursors */
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1760 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1761 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1762 struct drm_framebuffer *fb = crtc->primary->fb;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1763
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1764 if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1765 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
93125cb704919f5 Srinivasan Shanmugam 2023-07-18 1766
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1767 r = amdgpu_bo_reserve(aobj, true);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1768 if (r == 0) {
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1769 amdgpu_bo_unpin(aobj);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1770 amdgpu_bo_unreserve(aobj);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1771 }
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1772 }
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1773
93125cb704919f5 Srinivasan Shanmugam 2023-07-18 1774 if (!fb || !fb->obj[0])
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1775 continue;
93125cb704919f5 Srinivasan Shanmugam 2023-07-18 1776
1837c76b780a420 Thomas Zimmermann 2026-03-04 @1777 if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) {
1837c76b780a420 Thomas Zimmermann 2026-03-04 1778 struct amdgpu_bo *robj = gem_to_amdgpu_bo(fb->obj[0]);
1837c76b780a420 Thomas Zimmermann 2026-03-04 1779
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1780 r = amdgpu_bo_reserve(robj, true);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1781 if (r == 0) {
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1782 amdgpu_bo_unpin(robj);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1783 amdgpu_bo_unreserve(robj);
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1784 }
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1785 }
89e2b4373ae5215 Alex Deucher 2022-06-21 1786 }
4b12ee6f426e5e3 Victor Zhao 2021-04-27 1787 return 0;
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1788 }
a2e15b0e6c91a13 Alex Deucher 2021-03-19 1789
:::::: The code at line 1777 was first introduced by commit
:::::: 1837c76b780a4201e3d9f718e17c09b536df700f drm/amdgpu: Move test for fbdev GEM object into generic helper
:::::: TO: Thomas Zimmermann <tzimmermann@suse.de>
:::::: CC: Alex Deucher <alexander.deucher@amd.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-03-09 23:40 [linux-next:master 4682/4750] drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:1777:8: error: implicit declaration of function 'drm_fb_helper_gem_is_fb'; did you mean 'drm_fb_helper_from_client'? kernel test robot
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