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drm/xe/queue: fix engine_class bounds check

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BugLink: https://bugs.launchpad.net/bugs/2065400

[ Upstream commit b7dce525c4fcc92b373136288309f8c9ca6c375f ]

The engine_class is the index into the user_to_xe_engine_class,
therefore it needs to be less than.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240318180532.57522-4-matthew.auld@intel.com
(cherry picked from commit fe87b7dfcb204a161d1e38b0e787b2f5ab520f32)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Matthew Auld
2024-03-18 18:05:33 +00:00
committed by Stefan Bader
parent 341aa5974f
commit b5f14a4a3c
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/xe/xe_exec_queue.c
+1 -1
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@@ -405,7 +405,7 @@ find_hw_engine(struct xe_device *xe,
{
u32 idx;
if (eci.engine_class > ARRAY_SIZE(user_to_xe_engine_class))
if (eci.engine_class >= ARRAY_SIZE(user_to_xe_engine_class))
return NULL;
if (eci.gt_id >= xe->info.gt_count)