From: Matthew Auld Date: Mon, 18 Mar 2024 18:05:33 +0000 (+0000) Subject: drm/xe/queue: fix engine_class bounds check X-Git-Tag: v6.9-rc2~13^2~4^2~4 X-Git-Url: https://repo.jachan.dev/linux.git/commitdiff_plain/b7dce525c4fc drm/xe/queue: fix engine_class bounds check 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 Cc: Nirmoy Das Reviewed-by: Nirmoy Das 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 --- diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c index 11e150f4c0c1..ead25d5e723e 100644 --- a/drivers/gpu/drm/xe/xe_exec_queue.c +++ b/drivers/gpu/drm/xe/xe_exec_queue.c @@ -448,7 +448,7 @@ 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)