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Message-ID: <20240206152850.333f620d@canb.auug.org.au>
Date: Tue, 6 Feb 2024 15:28:50 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Christian König <christian.koenig@....com>, Somalapuram
Amaranath <Amaranath.Somalapuram@....com>, Intel Graphics
<intel-gfx@...ts.freedesktop.org>, DRI <dri-devel@...ts.freedesktop.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the drm-misc tree
Hi all,
After merging the drm-misc tree, today's linux-next build (i386 defconfig)
failed like this:
In function 'i915_ttm_placement_from_obj',
inlined from 'i915_ttm_get_pages' at drivers/gpu/drm/i915/gem/i915_gem_ttm.c:847:2:
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:165:18: error: 'places[0].flags' is used uninitialized [-Werror=uninitialized]
165 | places[0].flags |= TTM_PL_FLAG_DESIRED;
| ~~~~~~~~~^~~~~~
drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'i915_ttm_get_pages':
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:837:26: note: 'places' declared here
837 | struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1];
| ^~~~~~
Caused by commit
a78a8da51b36 ("drm/ttm: replace busy placement with flags v6")
I applied the following hack for today:
From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Tue, 6 Feb 2024 15:17:54 +1100
Subject: [PATCH] drm/ttm: initialise places
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 80c6cafc8887..34e699e67c25 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -834,7 +834,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object *obj,
static int i915_ttm_get_pages(struct drm_i915_gem_object *obj)
{
- struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1];
+ struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1] = {};
struct ttm_placement placement;
/* restricted by sg_alloc_table */
--
2.43.0
--
Cheers,
Stephen Rothwell
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