On Sat, Apr 20, 2013 at 12:08:11PM +0200, Daniel Vetter wrote:
> In
>
> commit 9e8944ab564f2e3dde90a518cd32048c58918608
> Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Date: Thu Nov 15 11:32:17 2012 +0000
>
> drm: Introduce an iterator over holes in the drm_mm range manager
>
> helpers and iterators for hole handling have been introduced with some
> debug BUG_ONs sprinkled over. Unfortunately this broke the mm dumper
> which unconditionally tried to compute the size of the very first
> hole.
>
> Reported-by: Christopher Harvey <charvey@xxxxxxxxxx>
> Cc: Christopher Harvey <charvey@xxxxxxxxxx>
> Cc: Dave Airlie <airlied@xxxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/drm_mm.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
> index db1e2d6..a0ba3a1 100644
> --- a/drivers/gpu/drm/drm_mm.c
> +++ b/drivers/gpu/drm/drm_mm.c
> @@ -759,14 +759,15 @@ int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
> {
> struct drm_mm_node *entry;
> unsigned long total_used = 0, total_free = 0, total = 0;
> - unsigned long hole_start, hole_end, hole_size;
> + unsigned long hole_start, hole_end, hole_size = 0;
>
> - hole_start = drm_mm_hole_node_start(&mm->head_node);
> - hole_end = drm_mm_hole_node_end(&mm->head_node);
Use __drm_mm_hole_node_start and __drm_mm_hole_node_end instead.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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