mirror of https://github.com/torvalds/linux.git
8d6cb2f7fb
Making this IS_REACHABLE() was still wrong, as that just determines whether the lower-level backlight code would be reachable from the panel driver. However, with CONFIG_DRM=y and CONFIG_BACKLIGHT_CLASS_DEVICE=m, the drm_panel_of_backlight is left out of drm_panel.o but the condition tells the driver that it is there, leading to multiple link errors such as ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-sitronix-st7701.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-sharp-ls043t1le01.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-seiko-43wvf1g.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-ronbo-rb070d30.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-rocktech-jh057n00900.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.ko] undefined! ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.ko] undefined! Change the condition to check for whether the function was actually part of the drm module. This version of the patch survived a few hundred randconfig builds, so I have a good feeling this might be the last one for the export. Fixes: |
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|---|---|---|
| .. | ||
| bridge | ||
| i2c | ||
| ttm | ||
| amd_asic_type.h | ||
| drm_agpsupport.h | ||
| drm_atomic.h | ||
| drm_atomic_helper.h | ||
| drm_atomic_state_helper.h | ||
| drm_atomic_uapi.h | ||
| drm_audio_component.h | ||
| drm_auth.h | ||
| drm_blend.h | ||
| drm_bridge.h | ||
| drm_cache.h | ||
| drm_client.h | ||
| drm_color_mgmt.h | ||
| drm_connector.h | ||
| drm_crtc.h | ||
| drm_crtc_helper.h | ||
| drm_damage_helper.h | ||
| drm_debugfs.h | ||
| drm_debugfs_crc.h | ||
| drm_device.h | ||
| drm_displayid.h | ||
| drm_dp_dual_mode_helper.h | ||
| drm_dp_helper.h | ||
| drm_dp_mst_helper.h | ||
| drm_drv.h | ||
| drm_dsc.h | ||
| drm_edid.h | ||
| drm_encoder.h | ||
| drm_encoder_slave.h | ||
| drm_fb_cma_helper.h | ||
| drm_fb_helper.h | ||
| drm_file.h | ||
| drm_fixed.h | ||
| drm_flip_work.h | ||
| drm_format_helper.h | ||
| drm_fourcc.h | ||
| drm_framebuffer.h | ||
| drm_gem.h | ||
| drm_gem_cma_helper.h | ||
| drm_gem_framebuffer_helper.h | ||
| drm_gem_shmem_helper.h | ||
| drm_gem_ttm_helper.h | ||
| drm_gem_vram_helper.h | ||
| drm_hashtab.h | ||
| drm_hdcp.h | ||
| drm_ioctl.h | ||
| drm_irq.h | ||
| drm_lease.h | ||
| drm_legacy.h | ||
| drm_mipi_dbi.h | ||
| drm_mipi_dsi.h | ||
| drm_mm.h | ||
| drm_mode_config.h | ||
| drm_mode_object.h | ||
| drm_modes.h | ||
| drm_modeset_helper.h | ||
| drm_modeset_helper_vtables.h | ||
| drm_modeset_lock.h | ||
| drm_of.h | ||
| drm_panel.h | ||
| drm_pci.h | ||
| drm_pciids.h | ||
| drm_plane.h | ||
| drm_plane_helper.h | ||
| drm_prime.h | ||
| drm_print.h | ||
| drm_probe_helper.h | ||
| drm_property.h | ||
| drm_rect.h | ||
| drm_scdc_helper.h | ||
| drm_self_refresh_helper.h | ||
| drm_simple_kms_helper.h | ||
| drm_syncobj.h | ||
| drm_sysfs.h | ||
| drm_util.h | ||
| drm_utils.h | ||
| drm_vblank.h | ||
| drm_vma_manager.h | ||
| drm_writeback.h | ||
| gma_drm.h | ||
| gpu_scheduler.h | ||
| i915_component.h | ||
| i915_drm.h | ||
| i915_mei_hdcp_interface.h | ||
| i915_pciids.h | ||
| intel-gtt.h | ||
| intel_lpe_audio.h | ||
| spsc_queue.h | ||