bonding: remove useless updating of slave->dev->last_rx

Now that all the logic is handled via last_arp_rx, we don't need to use
last_rx.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 1 insertions, 10 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e7aab9a6a670..14e023de09d6 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1115,9 +1115,6 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
         slave = bond_slave_get_rcu(skb->dev);
         bond = slave->bond;
 
-        if (bond->params.arp_interval)
-                slave->dev->last_rx = jiffies;
-
         recv_probe = ACCESS_ONCE(bond->recv_probe);
         if (recv_probe) {
                 ret = recv_probe(skb, bond, slave);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 430c51aed6a4..891432a994c0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1312,13 +1312,7 @@ struct net_device {
 /*
  * Cache lines mostly used on receive path (including eth_type_trans())
  */
-        unsigned long           last_rx;        /* Time of last Rx
-                                                 * This should not be set in
-                                                 * drivers, unless really needed,
-                                                 * because network stack (bonding)
-                                                 * use it if/when necessary, to
-                                                 * avoid dirtying this cache line.
-                                                 */
+        unsigned long           last_rx;        /* Time of last Rx */
 
         /* Interface address info used in eth_type_trans() */
         unsigned char           *dev_addr;      /* hw address, (before bcast