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drm: Use drm_mm_nodes() as shorthand for the list of nodes under struct drm_mm

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Fairly commonly we want to inspect the node list on the struct drm_mm,
which is buried within an embedded node. Bring it to the surface with a
bit of syntatic sugar.

Note this was intended to be split from commit ad579002c8 ("drm: Add
drm_mm_for_each_node_safe()") before being applied, but my timing sucks.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-3-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-12-22 08:36:05 +00:00
committed by Daniel Vetter
parent 0bfd4a01a6
commit 2bc98c8651
2 changed files with 19 additions and 7 deletions
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8
drivers/gpu/drm/drm_mm.c
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@@ -138,7 +138,7 @@ static void show_leaks(struct drm_mm *mm)
if (!buf)
return;
list_for_each_entry(node, __drm_mm_nodes(mm), node_list) {
list_for_each_entry(node, drm_mm_nodes(mm), node_list) {
struct stack_trace trace = {
.entries = entries,
.max_entries = STACKDEPTH
@@ -320,7 +320,7 @@ int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node)
if (hole->start < end)
return -ENOSPC;
} else {
hole = list_entry(__drm_mm_nodes(mm), typeof(*hole), node_list);
hole = list_entry(drm_mm_nodes(mm), typeof(*hole), node_list);
}
hole = list_last_entry(&hole->node_list, typeof(*hole), node_list);
@@ -883,7 +883,7 @@ EXPORT_SYMBOL(drm_mm_scan_remove_block);
*/
bool drm_mm_clean(const struct drm_mm *mm)
{
const struct list_head *head = __drm_mm_nodes(mm);
const struct list_head *head = drm_mm_nodes(mm);
return (head->next->next == head);
}
@@ -929,7 +929,7 @@ EXPORT_SYMBOL(drm_mm_init);
*/
void drm_mm_takedown(struct drm_mm *mm)
{
if (WARN(!list_empty(__drm_mm_nodes(mm)),
if (WARN(!list_empty(drm_mm_nodes(mm)),
"Memory manager not clean during takedown.\n"))
show_leaks(mm);