diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2010-12-13 08:19:56 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-16 20:43:22 (GMT) |
| commit | ffa95ed50f9fb2d8faaa6bd73086a7056ea46a06 (patch) | |
| tree | 17502c5275b8f28563ccfd15f23fe85a5e2dabfe | |
| parent | 8387451e558853f7b513790c0070e3b6f0c135aa (diff) | |
| download | linux-ffa95ed50f9fb2d8faaa6bd73086a7056ea46a06.tar.xz | |
bonding: Change active slave quietly when bond is down
bond_change_active_slave() may be called when a slave is added, even
if the bond has not been brought up yet. It may then attempt to send
packets, and further it may use mcast_work which is uninitialised
before the bond is brought up. Add the necessary checks for
netif_running(bond->dev).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index ef370c9..3b16c34 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1178,11 +1178,13 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active) bond_do_fail_over_mac(bond, new_active, old_active); - bond->send_grat_arp = bond->params.num_grat_arp; - bond_send_gratuitous_arp(bond); + if (netif_running(bond->dev)) { + bond->send_grat_arp = bond->params.num_grat_arp; + bond_send_gratuitous_arp(bond); - bond->send_unsol_na = bond->params.num_unsol_na; - bond_send_unsolicited_na(bond); + bond->send_unsol_na = bond->params.num_unsol_na; + bond_send_unsolicited_na(bond); + } write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); @@ -1196,8 +1198,9 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active) /* resend IGMP joins since active slave has changed or * all were sent on curr_active_slave */ - if ((USES_PRIMARY(bond->params.mode) && new_active) || - bond->params.mode == BOND_MODE_ROUNDROBIN) { + if (((USES_PRIMARY(bond->params.mode) && new_active) || + bond->params.mode == BOND_MODE_ROUNDROBIN) && + netif_running(bond->dev)) { bond->igmp_retrans = bond->params.resend_igmp; queue_delayed_work(bond->wq, &bond->mcast_work, 0); } |