From 3b7d636b50fb38e4e0f1113ba7bff8dcd19d140f Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Tue, 18 Feb 2014 07:48:36 +0100 Subject: [PATCH] bonding: remove bond->lock from bond_arp_rcv We're always called with rcu_read_lock() held (bond_arp_rcv() is only called from bond_handle_frame(), which is rx_handler and always called under rcu from __netif_receive_skb_core() ). The slave active/passive and/or bonding params can change in-flight, however we don't really care about that - we only modify the last time packet was received, which is harmless. CC: Jay Vosburgh CC: Andy Gospodarek Signed-off-by: Veaceslav Falico Acked-by: Ding Tianhong Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 3bce855e627b..3c50bece69ff 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2260,8 +2260,6 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, if (skb->protocol != __cpu_to_be16(ETH_P_ARP)) return RX_HANDLER_ANOTHER; - read_lock(&bond->lock); - if (!slave_do_arp_validate(bond, slave)) goto out_unlock; @@ -2318,7 +2316,6 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, bond_validate_arp(bond, slave, tip, sip); out_unlock: - read_unlock(&bond->lock); if (arp != (struct arphdr *)skb->data) kfree(arp); return RX_HANDLER_ANOTHER; -- 2.20.1