1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 0cda34b827f8..3aff1a815e89 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -195,6 +195,12 @@ struct bonding {
         s32      slave_cnt; /* never change this value outside the attach/detach wrappers */
         int     (*recv_probe)(const struct sk_buff *, struct bonding *,
                               struct slave *);
+        /* mode_lock is used for mode-specific locking needs, currently used by:
+         * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
+         *                bond_3ad_state_machine_handler() concurrently.
+         * TLB mode (5) - to sync the use and modifications of its hash table
+         * ALB mode (6) - to sync the use and modifications of its hash table
+         */
         spinlock_t mode_lock;
         u8       send_peer_notif;
         u8       igmp_retrans;