mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 13:08:08 +07:00
749cc6f7ed
When CONFIG_DRM_KMS_FB_HELPER is disabled, we can have a configuration
in which some DRM drivers are built-in, but the framebuffer core is a
loadable module. This results in a link error, such as:
drivers/gpu/drm/radeon/radeon.o: In function `radeon_pci_probe':
radeon_kfd.c:(.text.radeon_pci_probe+0xbc): undefined reference to `remove_conflicting_framebuffers'
drivers/gpu/drm/amd/amdgpu/amdgpu.o: In function `amdgpu_pci_probe':
amdgpu_mn.c:(.text.amdgpu_pci_probe+0xa8): undefined reference to `remove_conflicting_framebuffers'
drivers/gpu/drm/mgag200/mgag200.o: In function `mga_vram_init':
mgag200_ttm.c:(.text.mga_vram_init+0xa8): undefined reference to `remove_conflicting_framebuffers'
drivers/gpu/drm/mgag200/mgag200.o: In function `mga_pci_probe':
mgag200_ttm.c:(.text.mga_pci_probe+0x88): undefined reference to `remove_conflicting_framebuffers'
Makefile:969: recipe for target 'vmlinux' failed
This changes the compile-time check to IS_REACHABLE, which means we end up
not calling remove_conflicting_framebuffers() in the configuration, which
seems good enough, as we know that no framebuffer driver is loaded by the
time that the built-in DRM driver calls remove_conflicting_framebuffers.
We could alternatively avoid the link error by forcing CONFIG_FB to not
be a module in this case, but that wouldn't change anything at runtime,
and just make the already convoluted set of dependencies worse here.
I could not find out what happens if the fbdev driver gets loaded as
a module after the DRM driver is already initialized, but that is a case
that can happen with or without this patch.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes:
|
||
|---|---|---|
| .. | ||
| bridge | ||
| i2c | ||
| ttm | ||
| ati_pcigart.h | ||
| drm_agpsupport.h | ||
| drm_atomic_helper.h | ||
| drm_atomic.h | ||
| drm_auth.h | ||
| drm_cache.h | ||
| drm_connector.h | ||
| drm_core.h | ||
| drm_crtc_helper.h | ||
| drm_crtc.h | ||
| drm_displayid.h | ||
| drm_dp_dual_mode_helper.h | ||
| drm_dp_helper.h | ||
| drm_dp_mst_helper.h | ||
| drm_edid.h | ||
| drm_encoder_slave.h | ||
| drm_fb_cma_helper.h | ||
| drm_fb_helper.h | ||
| drm_fixed.h | ||
| drm_flip_work.h | ||
| drm_fourcc.h | ||
| drm_framebuffer.h | ||
| drm_gem_cma_helper.h | ||
| drm_gem.h | ||
| drm_global.h | ||
| drm_hashtab.h | ||
| drm_irq.h | ||
| drm_legacy.h | ||
| drm_mem_util.h | ||
| drm_mipi_dsi.h | ||
| drm_mm.h | ||
| drm_modes.h | ||
| drm_modeset_helper_vtables.h | ||
| drm_modeset_helper.h | ||
| drm_modeset_lock.h | ||
| drm_modeset.h | ||
| drm_of.h | ||
| drm_os_linux.h | ||
| drm_panel.h | ||
| drm_pciids.h | ||
| drm_plane_helper.h | ||
| drm_rect.h | ||
| drm_simple_kms_helper.h | ||
| drm_sysfs.h | ||
| drm_vma_manager.h | ||
| drmP.h | ||
| gma_drm.h | ||
| i915_component.h | ||
| i915_drm.h | ||
| i915_pciids.h | ||
| intel-gtt.h | ||