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Commit e4cf5a04 authored by Chris Wilson's avatar Chris Wilson Committed by Sushmita Susheelendra
Browse files

drm: Skip initialising the drm_mm_node->hole_stack 



As we always add this to the drm_mm->hole_stack as our first operation,
we do not need to initialise the list node.

Change-Id: If2e9e06141bdb9a9411ef875cb83e41a48e5f1a9
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: default avatarDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470236651-678-3-git-send-email-chris@chris-wilson.co.uk
Git-commit: a787900564ffc6eebbcb7086b45e04a0bc3370f0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarSushmita Susheelendra <ssusheel@codeaurora.org>
parent 32d840be

drivers/gpu/drm/drm_mm.c

+1 −5
Original line number Diff line number Diff line
@@ -217,7 +217,6 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, 
	node->color = color;

	node->allocated = 1;



	INIT_LIST_HEAD(&node->hole_stack);

	list_add(&node->node_list, &hole_node->node_list);



	drm_mm_interval_tree_add_node(hole_node, node);
@@ -274,14 +273,13 @@ int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node) 
	node->mm = mm;

	node->allocated = 1;



	INIT_LIST_HEAD(&node->hole_stack);

	list_add(&node->node_list, &hole->node_list);



	drm_mm_interval_tree_add_node(hole, node);



	if (node->start == hole_start) {

		hole->hole_follows = 0;

		list_del_init(&hole->hole_stack);

		list_del(&hole->hole_stack);

	}



	node->hole_follows = 0;
@@ -377,7 +375,6 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node, 
	node->color = color;

	node->allocated = 1;



	INIT_LIST_HEAD(&node->hole_stack);

	list_add(&node->node_list, &hole_node->node_list);



	drm_mm_interval_tree_add_node(hole_node, node);
@@ -831,7 +828,6 @@ void drm_mm_init(struct drm_mm * mm, u64 start, u64 size) 


	/* Clever trick to avoid a special case in the free hole tracking. */

	INIT_LIST_HEAD(&mm->head_node.node_list);

	INIT_LIST_HEAD(&mm->head_node.hole_stack);

	mm->head_node.hole_follows = 1;

	mm->head_node.scanned_block = 0;

	mm->head_node.scanned_prev_free = 0;