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From: Matthew Brost <matthew.brost@intel.com>
To: intel-xe@lists.freedesktop.org
Subject: [PATCH] drm/xe: Use __counted_by for flexible arrays
Date: Thu, 17 Oct 2024 20:00:39 -0700	[thread overview]
Message-ID: <20241018030039.1077842-1-matthew.brost@intel.com> (raw)

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

Signed-off-by: Matthew Brost <matthew.brost@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


             reply	other threads:[~2024-10-18  3:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-18  3:00 Matthew Brost [this message]
2024-10-18  3:05 ` ✓ CI.Patch_applied: success for drm/xe: Use __counted_by for flexible arrays Patchwork
2024-10-18  3:05 ` ✓ CI.checkpatch: " Patchwork
2024-10-18  3:06 ` ✓ CI.KUnit: " Patchwork
2024-10-18  3:18 ` ✓ CI.Build: " Patchwork
2024-10-18  3:21 ` ✓ CI.Hooks: " Patchwork
2024-10-18  3:23 ` ✓ CI.checksparse: " Patchwork
2024-10-18  3:42 ` ✓ CI.BAT: " Patchwork
2024-10-18  3:49 ` [PATCH] " Ghimiray, Himal Prasad
2024-10-18 18:34 ` ✗ CI.FULL: failure for " Patchwork

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