[PATCH] drm/xe: Use __counted_by for flexible arrays

Matthew Brost matthew.brost at intel.com
Fri Oct 18 03:00:39 UTC 2024


Good practice to use __counted_by in kernel coding for flexible arrays.

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_exec_queue_types.h | 2 +-
 drivers/gpu/drm/xe/xe_sched_job_types.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_exec_queue_types.h b/drivers/gpu/drm/xe/xe_exec_queue_types.h
index 7deb480e26af..1158b6062a6c 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue_types.h
+++ b/drivers/gpu/drm/xe/xe_exec_queue_types.h
@@ -143,7 +143,7 @@ struct xe_exec_queue {
 	/** @hw_engine_group_link: link into exec queues in the same hw engine group */
 	struct list_head hw_engine_group_link;
 	/** @lrc: logical ring context for this exec queue */
-	struct xe_lrc *lrc[];
+	struct xe_lrc *lrc[] __counted_by(width);
 };
 
 /**
diff --git a/drivers/gpu/drm/xe/xe_sched_job_types.h b/drivers/gpu/drm/xe/xe_sched_job_types.h
index 0d3f76fb05ce..426d261d7359 100644
--- a/drivers/gpu/drm/xe/xe_sched_job_types.h
+++ b/drivers/gpu/drm/xe/xe_sched_job_types.h
@@ -63,7 +63,7 @@ struct xe_sched_job {
 
 struct xe_sched_job_snapshot {
 	u16 batch_addr_len;
-	u64 batch_addr[];
+	u64 batch_addr[] __counted_by(batch_addr_len);
 };
 
 #endif
-- 
2.34.1



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