1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index adf201617b72..2f8560a354ba 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2505,6 +2505,10 @@ struct net_device {
 	 *
 	 * Also protects some fields in struct napi_struct.
 	 *
+	 * For the drivers that implement shaper or queue API, the scope
+	 * of this lock is expanded to cover most ndo/queue/ethtool/sysfs
+	 * operations.
+	 *
 	 * Ordering: take after rtnl_lock.
 	 */
 	struct mutex		lock;