[PATCH] drm: Add stackdepot include for DRM_DEBUG_MM

[Chris Wilson]

0day found that stackdepot.h doesn't get automatically included on all
architectures, so remember to add our #include.

Reported-by: kbuild test robot <fengguang.wu at intel.com>
Fixes: 5705670d0463 ("drm: Track drm_mm allocators and show leaks on shutdown")
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/drm_mm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 89b891a4847f..632473beb40c 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -105,6 +105,8 @@ static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_
 						enum drm_mm_search_flags flags);
 
 #ifdef CONFIG_DRM_DEBUG_MM
+#include <linux/stackdepot.h>
+
 #define STACKDEPTH 32
 #define BUFSZ 4096
 
-- 
2.10.2