6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Matthew Auld <matthew.auld@xxxxxxxxx> [ Upstream commit b7dce525c4fcc92b373136288309f8c9ca6c375f ] The engine_class is the index into the user_to_xe_engine_class, therefore it needs to be less than. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> Cc: Nirmoy Das <nirmoy.das@xxxxxxxxx> Reviewed-by: Nirmoy Das <nirmoy.das@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20240318180532.57522-4-matthew.auld@xxxxxxxxx (cherry picked from commit fe87b7dfcb204a161d1e38b0e787b2f5ab520f32) Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpu/drm/xe/xe_exec_queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c index a176d9ad6d1b8..5093c56d60ab6 100644 --- a/drivers/gpu/drm/xe/xe_exec_queue.c +++ b/drivers/gpu/drm/xe/xe_exec_queue.c @@ -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) -- 2.43.0