[PATCH] drm/ttm: make TTM_MAX_BO_PRIORITY unsigned

[Nicolai Hähnle]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

Fix a warning about different types in min() macro in amdgpu:

In file included from ./include/linux/list.h:8:0,
                 from drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:32:
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c: In function ‘amdgpu_bo_create_restricted’:
./include/linux/kernel.h:739:16: warning: comparison of distinct pointer types lacks a cast
  (void) (&min1 == &min2);   \
                ^
./include/linux/kernel.h:742:2: note: in expansion of macro ‘__min’
  __min(typeof(x), typeof(y),   \
  ^~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:434:21: note: in expansion of macro ‘min’
  bo->tbo.priority = min(bo->tbo.priority, TTM_MAX_BO_PRIORITY - 1);
                     ^~~

Signed-off-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
---
 include/drm/ttm/ttm_bo_driver.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 4395db1..c3d74be 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -42,7 +42,7 @@
 #include <linux/spinlock.h>
 #include <linux/reservation.h>
 
-#define TTM_MAX_BO_PRIORITY	16
+#define TTM_MAX_BO_PRIORITY	16U
 
 struct ttm_backend_func {
 	/**
-- 
2.9.3