We encountered the following errors while compiling drm_vram_helper.ko
ERROR: modpost: "drm_gem_ttm_print_info" [drivers/gpu/drm/drm_vram_helper.ko]
undefined!
ERROR: modpost: "drm_gem_ttm_mmap" [drivers/gpu/drm/drm_vram_helper.ko]
undefined!
The functions drm_gem_ttm_mmap and drm_gem_ttm_print_info are defined in
drm_gem_ttm_helper.c. This patch select CONFIG_DRM_TTM_HELPER on
CONFIG_DRM_VRAM_HELPER to resolve the undefined symbol errors.
Signed-off-by: chuguangqing <chuguangq...@inspur.com>
---
drivers/gpu/drm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index f7ea8e895c0c..01a314fdc9a8 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -226,6 +226,7 @@ config DRM_BUDDY
config DRM_VRAM_HELPER
tristate
depends on DRM
+ select DRM_TTM_HELPER if DRM_VRAM_HELPER != n
help
Helpers for VRAM memory management
--
2.43.5
