Commit 808a40b69468 ("drm/fbdev-dma: Implement damage handling and
deferred I/O") added deferred I/O for fbdev-dma. Also select the
Kconfig symbol FB_DEFERRED_IO (via FB_DMAMEM_HELPERS_DEFERRED). Fixes
build errors about missing fbdefio, such as
drivers/gpu/drm/drm_fbdev_dma.c:218:26: error: 'struct drm_fb_helper' has no member named 'fbdefio'
218 | fb_helper->fbdefio.delay = HZ / 20;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:219:26: error: 'struct drm_fb_helper' has no member named 'fbdefio'
219 | fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:221:21: error: 'struct fb_info' has no member named 'fbdefio'
221 | info->fbdefio = &fb_helper->fbdefio;
| ^~
drivers/gpu/drm/drm_fbdev_dma.c:221:43: error: 'struct drm_fb_helper' has no member named 'fbdefio'
221 | info->fbdefio = &fb_helper->fbdefio;
| ^~
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202410050241.Mox9QRjP-lkp@xxxxxxxxx/
Fixes: 808a40b69468 ("drm/fbdev-dma: Implement damage handling and deferred I/O")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v6.11+
---
drivers/gpu/drm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 1df4e627e3d3..db2e206a117c 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -338,7 +338,7 @@ config DRM_TTM_HELPER
config DRM_GEM_DMA_HELPER
tristate
depends on DRM
- select FB_DMAMEM_HELPERS if DRM_FBDEV_EMULATION
+ select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
help
Choose this if you need the GEM DMA helper functions
--
2.46.0
