[PATCH 1/1] gpu: drm: fix compilation errors in drm_vram_helper

[chuguangqing]

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 adds drm_gem_ttm_helper.o to DRM_VRAM_HELPER to resolve the undefined symbol errors.

Signed-off-by: chuguangqing <chuguangqing at inspur.com>
---
 drivers/gpu/drm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 4dafbdc8f86a..abbe32ddf6d0 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -125,7 +125,7 @@ drm_suballoc_helper-y := drm_suballoc.o
 obj-$(CONFIG_DRM_SUBALLOC_HELPER) += drm_suballoc_helper.o
 
 drm_vram_helper-y := drm_gem_vram_helper.o
-obj-$(CONFIG_DRM_VRAM_HELPER) += drm_vram_helper.o
+obj-$(CONFIG_DRM_VRAM_HELPER) += drm_vram_helper.o drm_gem_ttm_helper.o
 
 drm_ttm_helper-y := drm_gem_ttm_helper.o
 drm_ttm_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_ttm.o
-- 
2.43.5