diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c index fc58d118d844..390061d09693 100644 --- a/drivers/net/bonding/bond_3ad.c +++ b/drivers/net/bonding/bond_3ad.c @@ -2360,14 +2360,15 @@ int bond_3ad_set_carrier(struct bonding *bond) } /** - * bond_3ad_get_active_agg_info - get information of the active aggregator + * __bond_3ad_get_active_agg_info - get information of the active aggregator * @bond: bonding struct to work on * @ad_info: ad_info struct to fill with the bond's info * * Returns: 0 on success * < 0 on error */ -int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info) +int __bond_3ad_get_active_agg_info(struct bonding *bond, + struct ad_info *ad_info) { struct aggregator *aggregator = NULL; struct port *port; @@ -2391,6 +2392,18 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info) return -1; } +/* Wrapper used to hold bond->lock so no slave manipulation can occur */ +int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info) +{ + int ret; + + read_lock(&bond->lock); + ret = __bond_3ad_get_active_agg_info(bond, ad_info); + read_unlock(&bond->lock); + + return ret; +} + int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) { struct slave *slave, *start_at; @@ -2402,8 +2415,8 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) struct ad_info ad_info; int res = 1; - if (bond_3ad_get_active_agg_info(bond, &ad_info)) { - pr_debug("%s: Error: bond_3ad_get_active_agg_info failed\n", + if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { + pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n", dev->name); goto out; } diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h index 0cfaa4afdece..5d91ad0cc041 100644 --- a/drivers/net/bonding/bond_3ad.h +++ b/drivers/net/bonding/bond_3ad.h @@ -273,6 +273,8 @@ void bond_3ad_adapter_speed_changed(struct slave *slave); void bond_3ad_adapter_duplex_changed(struct slave *slave); void bond_3ad_handle_link_change(struct slave *slave, char link); int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info); +int __bond_3ad_get_active_agg_info(struct bonding *bond, + struct ad_info *ad_info); int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev); int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c index 94d06f1307b8..4060d41f0ee7 100644 --- a/drivers/net/bonding/bond_procfs.c +++ b/drivers/net/bonding/bond_procfs.c @@ -130,7 +130,7 @@ static void bond_info_show_master(struct seq_file *seq) seq_printf(seq, "Aggregator selection policy (ad_select): %s\n", ad_select_tbl[bond->params.ad_select].modename); - if (bond_3ad_get_active_agg_info(bond, &ad_info)) { + if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { seq_printf(seq, "bond %s has no active aggregator\n", bond->dev->name); } else { diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 77ea237de900..d7434e0a610e 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1319,7 +1319,6 @@ static ssize_t bonding_show_mii_status(struct device *d, } static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); - /* * Show current 802.3ad aggregator ID. */ @@ -1333,7 +1332,7 @@ static ssize_t bonding_show_ad_aggregator(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; count = sprintf(buf, "%d\n", - (bond_3ad_get_active_agg_info(bond, &ad_info)) + bond_3ad_get_active_agg_info(bond, &ad_info) ? 0 : ad_info.aggregator_id); } @@ -1355,7 +1354,7 @@ static ssize_t bonding_show_ad_num_ports(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; count = sprintf(buf, "%d\n", - (bond_3ad_get_active_agg_info(bond, &ad_info)) + bond_3ad_get_active_agg_info(bond, &ad_info) ? 0 : ad_info.ports); } @@ -1377,7 +1376,7 @@ static ssize_t bonding_show_ad_actor_key(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; count = sprintf(buf, "%d\n", - (bond_3ad_get_active_agg_info(bond, &ad_info)) + bond_3ad_get_active_agg_info(bond, &ad_info) ? 0 : ad_info.actor_key); } @@ -1399,7 +1398,7 @@ static ssize_t bonding_show_ad_partner_key(struct device *d, if (bond->params.mode == BOND_MODE_8023AD) { struct ad_info ad_info; count = sprintf(buf, "%d\n", - (bond_3ad_get_active_agg_info(bond, &ad_info)) + bond_3ad_get_active_agg_info(bond, &ad_info) ? 0 : ad_info.partner_key); }