drm/amdgpu: Remove amdgpu_bo_list_array_entry()

Now that there is an explicit flexible array at the end of 'struct
amdgpu_bo_list', it can be used to remove amdgpu_bo_list_array_entry() and
simplify some macro.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c

@@ -87,7 +87,7 @@ int amdgpu_bo_list_create(struct amdgpu_device *adev, struct drm_file *filp,
 	list->gws_obj = NULL;
 	list->oa_obj = NULL;
 
-	array = amdgpu_bo_list_array_entry(list, 0);
+	array = list->entries;
 	memset(array, 0, num_entries * sizeof(struct amdgpu_bo_list_entry));
 
 	for (i = 0; i < num_entries; ++i) {

drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h

@@ -71,22 +71,14 @@ int amdgpu_bo_list_create(struct amdgpu_device *adev,
 				 size_t num_entries,
 				 struct amdgpu_bo_list **list);
 
-static inline struct amdgpu_bo_list_entry *
-amdgpu_bo_list_array_entry(struct amdgpu_bo_list *list, unsigned index)
-{
-	struct amdgpu_bo_list_entry *array = (void *)&list[1];
-
-	return &array[index];
-}
-
 #define amdgpu_bo_list_for_each_entry(e, list) \
-	for (e = amdgpu_bo_list_array_entry(list, 0); \
-	     e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
+	for (e = list->entries; \
+	     e != &list->entries[list->num_entries]; \
 	     ++e)
 
 #define amdgpu_bo_list_for_each_userptr_entry(e, list) \
-	for (e = amdgpu_bo_list_array_entry(list, (list)->first_userptr); \
-	     e != amdgpu_bo_list_array_entry(list, (list)->num_entries); \
+	for (e = &list->entries[list->first_userptr]; \
+	     e != &list->entries[list->num_entries]; \
 	     ++e)
 
 #endif