Commit 547942ca authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller

bonding: trivial: style and comment fixes

First adjust a couple of locking comments that were left inaccurate,
then adjust comments to use the netdev styling and remove extra new
lines where necessary and add a couple of new lines between declarations
and code. These are all trivial styling changes, no functional change.
Also removed a couple of outdated or obvious comments.
This patch is by no means a complete fix of all netdev style violations
but it gets the bonding closer.
Signed-off-by: default avatarNikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 56924c38
...@@ -297,15 +297,14 @@ static u16 __get_link_speed(struct port *port) ...@@ -297,15 +297,14 @@ static u16 __get_link_speed(struct port *port)
static u8 __get_duplex(struct port *port) static u8 __get_duplex(struct port *port)
{ {
struct slave *slave = port->slave; struct slave *slave = port->slave;
u8 retval; u8 retval;
/* handling a special case: when the configuration starts with /* handling a special case: when the configuration starts with
* link down, it sets the duplex to 0. * link down, it sets the duplex to 0.
*/ */
if (slave->link != BOND_LINK_UP) if (slave->link != BOND_LINK_UP) {
retval = 0x0; retval = 0x0;
else { } else {
switch (slave->duplex) { switch (slave->duplex) {
case DUPLEX_FULL: case DUPLEX_FULL:
retval = 0x1; retval = 0x1;
......
...@@ -261,14 +261,15 @@ static struct slave *tlb_choose_channel(struct bonding *bond, u32 hash_index, ...@@ -261,14 +261,15 @@ static struct slave *tlb_choose_channel(struct bonding *bond, u32 hash_index,
u32 skb_len) u32 skb_len)
{ {
struct slave *tx_slave; struct slave *tx_slave;
/*
* We don't need to disable softirq here, becase /* We don't need to disable softirq here, becase
* tlb_choose_channel() is only called by bond_alb_xmit() * tlb_choose_channel() is only called by bond_alb_xmit()
* which already has softirq disabled. * which already has softirq disabled.
*/ */
spin_lock(&bond->mode_lock); spin_lock(&bond->mode_lock);
tx_slave = __tlb_choose_channel(bond, hash_index, skb_len); tx_slave = __tlb_choose_channel(bond, hash_index, skb_len);
spin_unlock(&bond->mode_lock); spin_unlock(&bond->mode_lock);
return tx_slave; return tx_slave;
} }
...@@ -569,7 +570,7 @@ static void rlb_req_update_subnet_clients(struct bonding *bond, __be32 src_ip) ...@@ -569,7 +570,7 @@ static void rlb_req_update_subnet_clients(struct bonding *bond, __be32 src_ip)
netdev_err(bond->dev, "found a client with no channel in the client's hash table\n"); netdev_err(bond->dev, "found a client with no channel in the client's hash table\n");
continue; continue;
} }
/*update all clients using this src_ip, that are not assigned /* update all clients using this src_ip, that are not assigned
* to the team's address (curr_active_slave) and have a known * to the team's address (curr_active_slave) and have a known
* unicast mac address. * unicast mac address.
*/ */
...@@ -695,9 +696,7 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond) ...@@ -695,9 +696,7 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond)
return NULL; return NULL;
if (arp->op_code == htons(ARPOP_REPLY)) { if (arp->op_code == htons(ARPOP_REPLY)) {
/* the arp must be sent on the selected /* the arp must be sent on the selected rx channel */
* rx channel
*/
tx_slave = rlb_choose_channel(skb, bond); tx_slave = rlb_choose_channel(skb, bond);
if (tx_slave) if (tx_slave)
ether_addr_copy(arp->mac_src, tx_slave->dev->dev_addr); ether_addr_copy(arp->mac_src, tx_slave->dev->dev_addr);
...@@ -756,7 +755,7 @@ static void rlb_rebalance(struct bonding *bond) ...@@ -756,7 +755,7 @@ static void rlb_rebalance(struct bonding *bond)
spin_unlock_bh(&bond->mode_lock); spin_unlock_bh(&bond->mode_lock);
} }
/* Caller must hold rx_hashtbl lock */ /* Caller must hold mode_lock */
static void rlb_init_table_entry_dst(struct rlb_client_info *entry) static void rlb_init_table_entry_dst(struct rlb_client_info *entry)
{ {
entry->used_next = RLB_NULL_INDEX; entry->used_next = RLB_NULL_INDEX;
...@@ -845,7 +844,8 @@ static void rlb_src_link(struct bonding *bond, u32 ip_src_hash, u32 ip_dst_hash) ...@@ -845,7 +844,8 @@ static void rlb_src_link(struct bonding *bond, u32 ip_src_hash, u32 ip_dst_hash)
} }
/* deletes all rx_hashtbl entries with arp->ip_src if their mac_src does /* deletes all rx_hashtbl entries with arp->ip_src if their mac_src does
* not match arp->mac_src */ * not match arp->mac_src
*/
static void rlb_purge_src_ip(struct bonding *bond, struct arp_pkt *arp) static void rlb_purge_src_ip(struct bonding *bond, struct arp_pkt *arp)
{ {
struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
...@@ -1022,8 +1022,9 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[]) ...@@ -1022,8 +1022,9 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[])
return 0; return 0;
} }
/* for rlb each slave must have a unique hw mac addresses so that */ /* for rlb each slave must have a unique hw mac addresses so that
/* each slave will receive packets destined to a different mac */ * each slave will receive packets destined to a different mac
*/
memcpy(s_addr.sa_data, addr, dev->addr_len); memcpy(s_addr.sa_data, addr, dev->addr_len);
s_addr.sa_family = dev->type; s_addr.sa_family = dev->type;
if (dev_set_mac_address(dev, &s_addr)) { if (dev_set_mac_address(dev, &s_addr)) {
...@@ -1034,13 +1035,10 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[]) ...@@ -1034,13 +1035,10 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[])
return 0; return 0;
} }
/* /* Swap MAC addresses between two slaves.
* Swap MAC addresses between two slaves.
* *
* Called with RTNL held, and no other locks. * Called with RTNL held, and no other locks.
*
*/ */
static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2) static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2)
{ {
u8 tmp_mac_addr[ETH_ALEN]; u8 tmp_mac_addr[ETH_ALEN];
...@@ -1051,8 +1049,7 @@ static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2) ...@@ -1051,8 +1049,7 @@ static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2)
} }
/* /* Send learning packets after MAC address swap.
* Send learning packets after MAC address swap.
* *
* Called with RTNL and no other locks * Called with RTNL and no other locks
*/ */
...@@ -1125,7 +1122,6 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla ...@@ -1125,7 +1122,6 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
found_slave = bond_slave_has_mac(bond, slave->perm_hwaddr); found_slave = bond_slave_has_mac(bond, slave->perm_hwaddr);
if (found_slave) { if (found_slave) {
/* locking: needs RTNL and nothing else */
alb_swap_mac_addr(slave, found_slave); alb_swap_mac_addr(slave, found_slave);
alb_fasten_mac_swap(bond, slave, found_slave); alb_fasten_mac_swap(bond, slave, found_slave);
} }
...@@ -1174,7 +1170,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav ...@@ -1174,7 +1170,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
return 0; return 0;
/* Try setting slave mac to bond address and fall-through /* Try setting slave mac to bond address and fall-through
to code handling that situation below... */ * to code handling that situation below...
*/
alb_set_slave_mac_addr(slave, bond->dev->dev_addr); alb_set_slave_mac_addr(slave, bond->dev->dev_addr);
} }
...@@ -1282,7 +1279,6 @@ int bond_alb_initialize(struct bonding *bond, int rlb_enabled) ...@@ -1282,7 +1279,6 @@ int bond_alb_initialize(struct bonding *bond, int rlb_enabled)
if (rlb_enabled) { if (rlb_enabled) {
bond->alb_info.rlb_enabled = 1; bond->alb_info.rlb_enabled = 1;
/* initialize rlb */
res = rlb_initialize(bond); res = rlb_initialize(bond);
if (res) { if (res) {
tlb_deinitialize(bond); tlb_deinitialize(bond);
...@@ -1554,13 +1550,11 @@ void bond_alb_monitor(struct work_struct *work) ...@@ -1554,13 +1550,11 @@ void bond_alb_monitor(struct work_struct *work)
bond_info->tx_rebalance_counter = 0; bond_info->tx_rebalance_counter = 0;
} }
/* handle rlb stuff */
if (bond_info->rlb_enabled) { if (bond_info->rlb_enabled) {
if (bond_info->primary_is_promisc && if (bond_info->primary_is_promisc &&
(++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) { (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) {
/* /* dev_set_promiscuity requires rtnl and
* dev_set_promiscuity requires rtnl and
* nothing else. Avoid race with bond_close. * nothing else. Avoid race with bond_close.
*/ */
rcu_read_unlock(); rcu_read_unlock();
...@@ -1630,8 +1624,7 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave) ...@@ -1630,8 +1624,7 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave)
return 0; return 0;
} }
/* /* Remove slave from tlb and rlb hash tables, and fix up MAC addresses
* Remove slave from tlb and rlb hash tables, and fix up MAC addresses
* if necessary. * if necessary.
* *
* Caller must hold RTNL and no other locks * Caller must hold RTNL and no other locks
...@@ -1718,8 +1711,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave ...@@ -1718,8 +1711,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
if (!swap_slave) if (!swap_slave)
swap_slave = bond_slave_has_mac(bond, bond->dev->dev_addr); swap_slave = bond_slave_has_mac(bond, bond->dev->dev_addr);
/* /* Arrange for swap_slave and new_slave to temporarily be
* Arrange for swap_slave and new_slave to temporarily be
* ignored so we can mess with their MAC addresses without * ignored so we can mess with their MAC addresses without
* fear of interference from transmit activity. * fear of interference from transmit activity.
*/ */
......
...@@ -13,9 +13,7 @@ ...@@ -13,9 +13,7 @@
static struct dentry *bonding_debug_root; static struct dentry *bonding_debug_root;
/* /* Show RLB hash table */
* Show RLB hash table
*/
static int bond_debug_rlb_hash_show(struct seq_file *m, void *v) static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
{ {
struct bonding *bond = m->private; struct bonding *bond = m->private;
......
...@@ -253,8 +253,7 @@ void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, ...@@ -253,8 +253,7 @@ void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
dev_queue_xmit(skb); dev_queue_xmit(skb);
} }
/* /* In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid,
* In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid,
* We don't protect the slave list iteration with a lock because: * We don't protect the slave list iteration with a lock because:
* a. This operation is performed in IOCTL context, * a. This operation is performed in IOCTL context,
* b. The operation is protected by the RTNL semaphore in the 8021q code, * b. The operation is protected by the RTNL semaphore in the 8021q code,
...@@ -326,8 +325,7 @@ static int bond_vlan_rx_kill_vid(struct net_device *bond_dev, ...@@ -326,8 +325,7 @@ static int bond_vlan_rx_kill_vid(struct net_device *bond_dev,
/*------------------------------- Link status -------------------------------*/ /*------------------------------- Link status -------------------------------*/
/* /* Set the carrier state for the master according to the state of its
* Set the carrier state for the master according to the state of its
* slaves. If any slaves are up, the master is up. In 802.3ad mode, * slaves. If any slaves are up, the master is up. In 802.3ad mode,
* do special 802.3ad magic. * do special 802.3ad magic.
* *
...@@ -362,8 +360,7 @@ static int bond_set_carrier(struct bonding *bond) ...@@ -362,8 +360,7 @@ static int bond_set_carrier(struct bonding *bond)
return 0; return 0;
} }
/* /* Get link speed and duplex from the slave's base driver
* Get link speed and duplex from the slave's base driver
* using ethtool. If for some reason the call fails or the * using ethtool. If for some reason the call fails or the
* values are invalid, set speed and duplex to -1, * values are invalid, set speed and duplex to -1,
* and return. * and return.
...@@ -416,8 +413,7 @@ const char *bond_slave_link_status(s8 link) ...@@ -416,8 +413,7 @@ const char *bond_slave_link_status(s8 link)
} }
} }
/* /* if <dev> supports MII link status reporting, check its link status.
* if <dev> supports MII link status reporting, check its link status.
* *
* We either do MII/ETHTOOL ioctls, or check netif_carrier_ok(), * We either do MII/ETHTOOL ioctls, or check netif_carrier_ok(),
* depending upon the setting of the use_carrier parameter. * depending upon the setting of the use_carrier parameter.
...@@ -454,14 +450,14 @@ static int bond_check_dev_link(struct bonding *bond, ...@@ -454,14 +450,14 @@ static int bond_check_dev_link(struct bonding *bond,
/* Ethtool can't be used, fallback to MII ioctls. */ /* Ethtool can't be used, fallback to MII ioctls. */
ioctl = slave_ops->ndo_do_ioctl; ioctl = slave_ops->ndo_do_ioctl;
if (ioctl) { if (ioctl) {
/* TODO: set pointer to correct ioctl on a per team member */ /* TODO: set pointer to correct ioctl on a per team member
/* bases to make this more efficient. that is, once */ * bases to make this more efficient. that is, once
/* we determine the correct ioctl, we will always */ * we determine the correct ioctl, we will always
/* call it and not the others for that team */ * call it and not the others for that team
/* member. */ * member.
*/
/*
* We cannot assume that SIOCGMIIPHY will also read a /* We cannot assume that SIOCGMIIPHY will also read a
* register; not all network drivers (e.g., e100) * register; not all network drivers (e.g., e100)
* support that. * support that.
*/ */
...@@ -476,8 +472,7 @@ static int bond_check_dev_link(struct bonding *bond, ...@@ -476,8 +472,7 @@ static int bond_check_dev_link(struct bonding *bond,
} }
} }
/* /* If reporting, report that either there's no dev->do_ioctl,
* If reporting, report that either there's no dev->do_ioctl,
* or both SIOCGMIIREG and get_link failed (meaning that we * or both SIOCGMIIREG and get_link failed (meaning that we
* cannot report link status). If not reporting, pretend * cannot report link status). If not reporting, pretend
* we're ok. * we're ok.
...@@ -487,9 +482,7 @@ static int bond_check_dev_link(struct bonding *bond, ...@@ -487,9 +482,7 @@ static int bond_check_dev_link(struct bonding *bond,
/*----------------------------- Multicast list ------------------------------*/ /*----------------------------- Multicast list ------------------------------*/
/* /* Push the promiscuity flag down to appropriate slaves */
* Push the promiscuity flag down to appropriate slaves
*/
static int bond_set_promiscuity(struct bonding *bond, int inc) static int bond_set_promiscuity(struct bonding *bond, int inc)
{ {
struct list_head *iter; struct list_head *iter;
...@@ -512,9 +505,7 @@ static int bond_set_promiscuity(struct bonding *bond, int inc) ...@@ -512,9 +505,7 @@ static int bond_set_promiscuity(struct bonding *bond, int inc)
return err; return err;
} }
/* /* Push the allmulti flag down to all slaves */
* Push the allmulti flag down to all slaves
*/
static int bond_set_allmulti(struct bonding *bond, int inc) static int bond_set_allmulti(struct bonding *bond, int inc)
{ {
struct list_head *iter; struct list_head *iter;
...@@ -537,8 +528,7 @@ static int bond_set_allmulti(struct bonding *bond, int inc) ...@@ -537,8 +528,7 @@ static int bond_set_allmulti(struct bonding *bond, int inc)
return err; return err;
} }
/* /* Retrieve the list of registered multicast addresses for the bonding
* Retrieve the list of registered multicast addresses for the bonding
* device and retransmit an IGMP JOIN request to the current active * device and retransmit an IGMP JOIN request to the current active
* slave. * slave.
*/ */
...@@ -560,8 +550,7 @@ static void bond_resend_igmp_join_requests_delayed(struct work_struct *work) ...@@ -560,8 +550,7 @@ static void bond_resend_igmp_join_requests_delayed(struct work_struct *work)
rtnl_unlock(); rtnl_unlock();
} }
/* Flush bond's hardware addresses from slave /* Flush bond's hardware addresses from slave */
*/
static void bond_hw_addr_flush(struct net_device *bond_dev, static void bond_hw_addr_flush(struct net_device *bond_dev,
struct net_device *slave_dev) struct net_device *slave_dev)
{ {
...@@ -632,8 +621,7 @@ static void bond_set_dev_addr(struct net_device *bond_dev, ...@@ -632,8 +621,7 @@ static void bond_set_dev_addr(struct net_device *bond_dev,
call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
} }
/* /* bond_do_fail_over_mac
* bond_do_fail_over_mac
* *
* Perform special MAC address swapping for fail_over_mac settings * Perform special MAC address swapping for fail_over_mac settings
* *
...@@ -653,8 +641,7 @@ static void bond_do_fail_over_mac(struct bonding *bond, ...@@ -653,8 +641,7 @@ static void bond_do_fail_over_mac(struct bonding *bond,
bond_set_dev_addr(bond->dev, new_active->dev); bond_set_dev_addr(bond->dev, new_active->dev);
break; break;
case BOND_FOM_FOLLOW: case BOND_FOM_FOLLOW:
/* /* if new_active && old_active, swap them
* if new_active && old_active, swap them
* if just old_active, do nothing (going to no active slave) * if just old_active, do nothing (going to no active slave)
* if just new_active, set new_active to bond's MAC * if just new_active, set new_active to bond's MAC
*/ */
...@@ -863,7 +850,8 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active) ...@@ -863,7 +850,8 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
/* resend IGMP joins since active slave has changed or /* resend IGMP joins since active slave has changed or
* all were sent on curr_active_slave. * all were sent on curr_active_slave.
* resend only if bond is brought up with the affected * resend only if bond is brought up with the affected
* bonding modes and the retransmission is enabled */ * bonding modes and the retransmission is enabled
*/
if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) && if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) &&
((bond_uses_primary(bond) && new_active) || ((bond_uses_primary(bond) && new_active) ||
BOND_MODE(bond) == BOND_MODE_ROUNDROBIN)) { BOND_MODE(bond) == BOND_MODE_ROUNDROBIN)) {
...@@ -1229,8 +1217,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1229,8 +1217,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
slave_dev->name); slave_dev->name);
} }
/* /* Old ifenslave binaries are no longer supported. These can
* Old ifenslave binaries are no longer supported. These can
* be identified with moderate accuracy by the state of the slave: * be identified with moderate accuracy by the state of the slave:
* the current ifenslave will set the interface down prior to * the current ifenslave will set the interface down prior to
* enslaving it; the old ifenslave will not. * enslaving it; the old ifenslave will not.
...@@ -1302,7 +1289,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1302,7 +1289,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
call_netdevice_notifiers(NETDEV_JOIN, slave_dev); call_netdevice_notifiers(NETDEV_JOIN, slave_dev);
/* If this is the first slave, then we need to set the master's hardware /* If this is the first slave, then we need to set the master's hardware
* address to be the same as the slave's. */ * address to be the same as the slave's.
*/
if (!bond_has_slaves(bond) && if (!bond_has_slaves(bond) &&
bond->dev->addr_assign_type == NET_ADDR_RANDOM) bond->dev->addr_assign_type == NET_ADDR_RANDOM)
bond_set_dev_addr(bond->dev, slave_dev); bond_set_dev_addr(bond->dev, slave_dev);
...@@ -1315,8 +1303,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1315,8 +1303,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
new_slave->bond = bond; new_slave->bond = bond;
new_slave->dev = slave_dev; new_slave->dev = slave_dev;
/* /* Set the new_slave's queue_id to be zero. Queue ID mapping
* Set the new_slave's queue_id to be zero. Queue ID mapping
* is set via sysfs or module option if desired. * is set via sysfs or module option if desired.
*/ */
new_slave->queue_id = 0; new_slave->queue_id = 0;
...@@ -1329,8 +1316,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1329,8 +1316,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
goto err_free; goto err_free;
} }
/* /* Save slave's original ("permanent") mac address for modes
* Save slave's original ("permanent") mac address for modes
* that need it, and for restoring it upon release, and then * that need it, and for restoring it upon release, and then
* set it to the master's address * set it to the master's address
*/ */
...@@ -1338,8 +1324,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1338,8 +1324,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
if (!bond->params.fail_over_mac || if (!bond->params.fail_over_mac ||
BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) { BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
/* /* Set slave to master's mac address. The application already
* Set slave to master's mac address. The application already
* set the master's mac address to that of the first slave * set the master's mac address to that of the first slave
*/ */
memcpy(addr.sa_data, bond_dev->dev_addr, bond_dev->addr_len); memcpy(addr.sa_data, bond_dev->dev_addr, bond_dev->addr_len);
...@@ -1425,8 +1410,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1425,8 +1410,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
link_reporting = bond_check_dev_link(bond, slave_dev, 1); link_reporting = bond_check_dev_link(bond, slave_dev, 1);
if ((link_reporting == -1) && !bond->params.arp_interval) { if ((link_reporting == -1) && !bond->params.arp_interval) {
/* /* miimon is set but a bonded network driver
* miimon is set but a bonded network driver
* does not support ETHTOOL/MII and * does not support ETHTOOL/MII and
* arp_interval is not set. Note: if * arp_interval is not set. Note: if
* use_carrier is enabled, we will never go * use_carrier is enabled, we will never go
...@@ -1626,8 +1610,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1626,8 +1610,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
return res; return res;
} }
/* /* Try to release the slave device <slave> from the bond device <master>
* Try to release the slave device <slave> from the bond device <master>
* It is legal to access curr_active_slave without a lock because all the function * It is legal to access curr_active_slave without a lock because all the function
* is RTNL-locked. If "all" is true it means that the function is being called * is RTNL-locked. If "all" is true it means that the function is being called
* while destroying a bond interface and all slaves are being released. * while destroying a bond interface and all slaves are being released.
...@@ -1713,8 +1696,7 @@ static int __bond_release_one(struct net_device *bond_dev, ...@@ -1713,8 +1696,7 @@ static int __bond_release_one(struct net_device *bond_dev,
if (all) { if (all) {
RCU_INIT_POINTER(bond->curr_active_slave, NULL); RCU_INIT_POINTER(bond->curr_active_slave, NULL);
} else if (oldcurrent == slave) { } else if (oldcurrent == slave) {
/* /* Note that we hold RTNL over this sequence, so there
* Note that we hold RTNL over this sequence, so there
* is no concern that another slave add/remove event * is no concern that another slave add/remove event
* will interfere. * will interfere.
*/ */
...@@ -1741,10 +1723,9 @@ static int __bond_release_one(struct net_device *bond_dev, ...@@ -1741,10 +1723,9 @@ static int __bond_release_one(struct net_device *bond_dev,
netdev_info(bond_dev, "last VLAN challenged slave %s left bond %s - VLAN blocking is removed\n", netdev_info(bond_dev, "last VLAN challenged slave %s left bond %s - VLAN blocking is removed\n",
slave_dev->name, bond_dev->name); slave_dev->name, bond_dev->name);
/* must do this from outside any spinlocks */
vlan_vids_del_by_dev(slave_dev, bond_dev); vlan_vids_del_by_dev(slave_dev, bond_dev);
/* If the mode uses primary, then this cases was handled above by /* If the mode uses primary, then this case was handled above by
* bond_change_active_slave(..., NULL) * bond_change_active_slave(..., NULL)
*/ */
if (!bond_uses_primary(bond)) { if (!bond_uses_primary(bond)) {
...@@ -1784,7 +1765,7 @@ static int __bond_release_one(struct net_device *bond_dev, ...@@ -1784,7 +1765,7 @@ static int __bond_release_one(struct net_device *bond_dev,
bond_free_slave(slave); bond_free_slave(slave);
return 0; /* deletion OK */ return 0;
} }
/* A wrapper used because of ndo_del_link */ /* A wrapper used because of ndo_del_link */
...@@ -1793,10 +1774,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) ...@@ -1793,10 +1774,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
return __bond_release_one(bond_dev, slave_dev, false); return __bond_release_one(bond_dev, slave_dev, false);
} }
/* /* First release a slave and then destroy the bond if no more slaves are left.
* First release a slave and then destroy the bond if no more slaves are left. * Must be under rtnl_lock when this function is called.
* Must be under rtnl_lock when this function is called. */
*/
static int bond_release_and_destroy(struct net_device *bond_dev, static int bond_release_and_destroy(struct net_device *bond_dev,
struct net_device *slave_dev) struct net_device *slave_dev)
{ {
...@@ -1819,7 +1799,6 @@ static int bond_info_query(struct net_device *bond_dev, struct ifbond *info) ...@@ -1819,7 +1799,6 @@ static int bond_info_query(struct net_device *bond_dev, struct ifbond *info)
info->bond_mode = BOND_MODE(bond); info->bond_mode = BOND_MODE(bond);
info->miimon = bond->params.miimon; info->miimon = bond->params.miimon;
info->num_slaves = bond->slave_cnt; info->num_slaves = bond->slave_cnt;
return 0; return 0;
...@@ -1882,9 +1861,7 @@ static int bond_miimon_inspect(struct bonding *bond) ...@@ -1882,9 +1861,7 @@ static int bond_miimon_inspect(struct bonding *bond)
/*FALLTHRU*/ /*FALLTHRU*/
case BOND_LINK_FAIL: case BOND_LINK_FAIL:
if (link_state) { if (link_state) {
/* /* recovered before downdelay expired */
* recovered before downdelay expired
*/
slave->link = BOND_LINK_UP; slave->link = BOND_LINK_UP;
slave->last_link_up = jiffies; slave->last_link_up = jiffies;
netdev_info(bond->dev, "link status up again after %d ms for interface %s\n", netdev_info(bond->dev, "link status up again after %d ms for interface %s\n",
...@@ -2036,8 +2013,7 @@ static void bond_miimon_commit(struct bonding *bond) ...@@ -2036,8 +2013,7 @@ static void bond_miimon_commit(struct bonding *bond)
bond_set_carrier(bond); bond_set_carrier(bond);
} }
/* /* bond_mii_monitor
* bond_mii_monitor
* *
* Really a wrapper that splits the mii monitor into two phases: an * Really a wrapper that splits the mii monitor into two phases: an
* inspection, then (if inspection indicates something needs to be done) * inspection, then (if inspection indicates something needs to be done)
...@@ -2109,8 +2085,7 @@ static bool bond_has_this_ip(struct bonding *bond, __be32 ip) ...@@ -2109,8 +2085,7 @@ static bool bond_has_this_ip(struct bonding *bond, __be32 ip)
return ret; return ret;
} }
/* /* We go to the (large) trouble of VLAN tagging ARP frames because
* We go to the (large) trouble of VLAN tagging ARP frames because
* switches in VLAN mode (especially if ports are configured as * switches in VLAN mode (especially if ports are configured as
* "native" to a VLAN) might not pass non-tagged frames. * "native" to a VLAN) might not pass non-tagged frames.
*/ */
...@@ -2337,8 +2312,7 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, ...@@ -2337,8 +2312,7 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
curr_active_slave = rcu_dereference(bond->curr_active_slave); curr_active_slave = rcu_dereference(bond->curr_active_slave);
/* /* Backup slaves won't see the ARP reply, but do come through
* Backup slaves won't see the ARP reply, but do come through
* here for each ARP probe (so we swap the sip/tip to validate * here for each ARP probe (so we swap the sip/tip to validate
* the probe). In a "redundant switch, common router" type of * the probe). In a "redundant switch, common router" type of
* configuration, the ARP probe will (hopefully) travel from * configuration, the ARP probe will (hopefully) travel from
...@@ -2378,8 +2352,7 @@ static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act, ...@@ -2378,8 +2352,7 @@ static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act,
last_act + mod * delta_in_ticks + delta_in_ticks/2); last_act + mod * delta_in_ticks + delta_in_ticks/2);
} }
/* /* This function is called regularly to monitor each slave's link
* this function is called regularly to monitor each slave's link
* ensuring that traffic is being sent and received when arp monitoring * ensuring that traffic is being sent and received when arp monitoring
* is used in load-balancing mode. if the adapter has been dormant, then an * is used in load-balancing mode. if the adapter has been dormant, then an
* arp is transmitted to generate traffic. see activebackup_arp_monitor for * arp is transmitted to generate traffic. see activebackup_arp_monitor for
...@@ -2488,8 +2461,7 @@ static void bond_loadbalance_arp_mon(struct work_struct *work) ...@@ -2488,8 +2461,7 @@ static void bond_loadbalance_arp_mon(struct work_struct *work)
msecs_to_jiffies(bond->params.arp_interval)); msecs_to_jiffies(bond->params.arp_interval));
} }
/* /* Called to inspect slaves for active-backup mode ARP monitor link state
* Called to inspect slaves for active-backup mode ARP monitor link state
* changes. Sets new_link in slaves to specify what action should take * changes. Sets new_link in slaves to specify what action should take
* place for the slave. Returns 0 if no changes are found, >0 if changes * place for the slave. Returns 0 if no changes are found, >0 if changes
* to link states must be committed. * to link states must be committed.
...@@ -2515,16 +2487,14 @@ static int bond_ab_arp_inspect(struct bonding *bond) ...@@ -2515,16 +2487,14 @@ static int bond_ab_arp_inspect(struct bonding *bond)
continue; continue;
} }
/* /* Give slaves 2*delta after being enslaved or made
* Give slaves 2*delta after being enslaved or made
* active. This avoids bouncing, as the last receive * active. This avoids bouncing, as the last receive
* times need a full ARP monitor cycle to be updated. * times need a full ARP monitor cycle to be updated.
*/ */
if (bond_time_in_interval(bond, slave->last_link_up, 2)) if (bond_time_in_interval(bond, slave->last_link_up, 2))
continue; continue;
/* /* Backup slave is down if:
* Backup slave is down if:
* - No current_arp_slave AND * - No current_arp_slave AND
* - more than 3*delta since last receive AND * - more than 3*delta since last receive AND
* - the bond has an IP address * - the bond has an IP address
...@@ -2543,8 +2513,7 @@ static int bond_ab_arp_inspect(struct bonding *bond) ...@@ -2543,8 +2513,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
commit++; commit++;
} }
/* /* Active slave is down if:
* Active slave is down if:
* - more than 2*delta since transmitting OR * - more than 2*delta since transmitting OR
* - (more than 2*delta since receive AND * - (more than 2*delta since receive AND
* the bond has an IP address) * the bond has an IP address)
...@@ -2561,8 +2530,7 @@ static int bond_ab_arp_inspect(struct bonding *bond) ...@@ -2561,8 +2530,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
return commit; return commit;
} }
/* /* Called to commit link state changes noted by inspection step of
* Called to commit link state changes noted by inspection step of
* active-backup mode ARP monitor. * active-backup mode ARP monitor.
* *
* Called with RTNL hold. * Called with RTNL hold.
...@@ -2639,8 +2607,7 @@ static void bond_ab_arp_commit(struct bonding *bond) ...@@ -2639,8 +2607,7 @@ static void bond_ab_arp_commit(struct bonding *bond)
bond_set_carrier(bond); bond_set_carrier(bond);
} }
/* /* Send ARP probes for active-backup mode ARP monitor.
* Send ARP probes for active-backup mode ARP monitor.
* *
* Called with rcu_read_lock held. * Called with rcu_read_lock held.
*/ */
...@@ -2782,9 +2749,7 @@ static void bond_activebackup_arp_mon(struct work_struct *work) ...@@ -2782,9 +2749,7 @@ static void bond_activebackup_arp_mon(struct work_struct *work)
/*-------------------------- netdev event handling --------------------------*/ /*-------------------------- netdev event handling --------------------------*/
/* /* Change device name */
* Change device name
*/
static int bond_event_changename(struct bonding *bond) static int bond_event_changename(struct bonding *bond)
{ {
bond_remove_proc_entry(bond); bond_remove_proc_entry(bond);
...@@ -2861,13 +2826,9 @@ static int bond_slave_netdev_event(unsigned long event, ...@@ -2861,13 +2826,9 @@ static int bond_slave_netdev_event(unsigned long event,
} }
break; break;
case NETDEV_DOWN: case NETDEV_DOWN:
/*
* ... Or is it this?
*/
break; break;
case NETDEV_CHANGEMTU: case NETDEV_CHANGEMTU:
/* /* TODO: Should slaves be allowed to
* TODO: Should slaves be allowed to
* independently alter their MTU? For * independently alter their MTU? For
* an active-backup bond, slaves need * an active-backup bond, slaves need
* not be the same type of device, so * not be the same type of device, so
...@@ -2916,8 +2877,7 @@ static int bond_slave_netdev_event(unsigned long event, ...@@ -2916,8 +2877,7 @@ static int bond_slave_netdev_event(unsigned long event,
return NOTIFY_DONE; return NOTIFY_DONE;
} }
/* /* bond_netdev_event: handle netdev notifier chain events.
* bond_netdev_event: handle netdev notifier chain events.
* *
* This function receives events for the netdev chain. The caller (an * This function receives events for the netdev chain. The caller (an
* ioctl handler calling blocking_notifier_call_chain) holds the necessary * ioctl handler calling blocking_notifier_call_chain) holds the necessary
...@@ -3187,8 +3147,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd ...@@ -3187,8 +3147,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
mii->phy_id = 0; mii->phy_id = 0;
/* Fall Through */ /* Fall Through */
case SIOCGMIIREG: case SIOCGMIIREG:
/* /* We do this again just in case we were called by SIOCGMIIREG
* We do this again just in case we were called by SIOCGMIIREG
* instead of SIOCGMIIPHY. * instead of SIOCGMIIPHY.
*/ */
mii = if_mii(ifr); mii = if_mii(ifr);
...@@ -3229,7 +3188,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd ...@@ -3229,7 +3188,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
return res; return res;
default: default:
/* Go on */
break; break;
} }
...@@ -3291,7 +3249,6 @@ static void bond_set_rx_mode(struct net_device *bond_dev) ...@@ -3291,7 +3249,6 @@ static void bond_set_rx_mode(struct net_device *bond_dev)
struct list_head *iter; struct list_head *iter;
struct slave *slave; struct slave *slave;
rcu_read_lock(); rcu_read_lock();
if (bond_uses_primary(bond)) { if (bond_uses_primary(bond)) {
slave = rcu_dereference(bond->curr_active_slave); slave = rcu_dereference(bond->curr_active_slave);
...@@ -3329,8 +3286,7 @@ static int bond_neigh_init(struct neighbour *n) ...@@ -3329,8 +3286,7 @@ static int bond_neigh_init(struct neighbour *n)
if (ret) if (ret)
return ret; return ret;
/* /* Assign slave's neigh_cleanup to neighbour in case cleanup is called
* Assign slave's neigh_cleanup to neighbour in case cleanup is called
* after the last slave has been detached. Assumes that all slaves * after the last slave has been detached. Assumes that all slaves
* utilize the same neigh_cleanup (true at this writing as only user * utilize the same neigh_cleanup (true at this writing as only user
* is ipoib). * is ipoib).
...@@ -3343,8 +3299,7 @@ static int bond_neigh_init(struct neighbour *n) ...@@ -3343,8 +3299,7 @@ static int bond_neigh_init(struct neighbour *n)
return parms.neigh_setup(n); return parms.neigh_setup(n);
} }
/* /* The bonding ndo_neigh_setup is called at init time beofre any
* The bonding ndo_neigh_setup is called at init time beofre any
* slave exists. So we must declare proxy setup function which will * slave exists. So we must declare proxy setup function which will
* be used at run time to resolve the actual slave neigh param setup. * be used at run time to resolve the actual slave neigh param setup.
* *
...@@ -3362,9 +3317,7 @@ static int bond_neigh_setup(struct net_device *dev, ...@@ -3362,9 +3317,7 @@ static int bond_neigh_setup(struct net_device *dev,
return 0; return 0;
} }
/* /* Change the MTU of all of a master's slaves to match the master */
* Change the MTU of all of a master's slaves to match the master
*/
static int bond_change_mtu(struct net_device *bond_dev, int new_mtu) static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
{ {
struct bonding *bond = netdev_priv(bond_dev); struct bonding *bond = netdev_priv(bond_dev);
...@@ -3417,8 +3370,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu) ...@@ -3417,8 +3370,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
return res; return res;
} }
/* /* Change HW address
* Change HW address
* *
* Note that many devices must be down to change the HW address, and * Note that many devices must be down to change the HW address, and
* downing the master releases all slaves. We can make bonds full of * downing the master releases all slaves. We can make bonds full of
...@@ -3588,8 +3540,7 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev ...@@ -3588,8 +3540,7 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev
return NETDEV_TX_OK; return NETDEV_TX_OK;
} }
/* /* In active-backup mode, we know that bond->curr_active_slave is always valid if
* in active-backup mode, we know that bond->curr_active_slave is always valid if
* the bond has a usable interface. * the bond has a usable interface.
*/ */
static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_dev) static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_dev)
...@@ -3651,9 +3602,7 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev) ...@@ -3651,9 +3602,7 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
/*------------------------- Device initialization ---------------------------*/ /*------------------------- Device initialization ---------------------------*/
/* /* Lookup the slave that corresponds to a qid */
* Lookup the slave that corresponds to a qid
*/
static inline int bond_slave_override(struct bonding *bond, static inline int bond_slave_override(struct bonding *bond,
struct sk_buff *skb) struct sk_buff *skb)
{ {
...@@ -3682,17 +3631,14 @@ static inline int bond_slave_override(struct bonding *bond, ...@@ -3682,17 +3631,14 @@ static inline int bond_slave_override(struct bonding *bond,
static u16 bond_select_queue(struct net_device *dev, struct sk_buff *skb, static u16 bond_select_queue(struct net_device *dev, struct sk_buff *skb,
void *accel_priv, select_queue_fallback_t fallback) void *accel_priv, select_queue_fallback_t fallback)
{ {
/* /* This helper function exists to help dev_pick_tx get the correct
* This helper function exists to help dev_pick_tx get the correct
* destination queue. Using a helper function skips a call to * destination queue. Using a helper function skips a call to
* skb_tx_hash and will put the skbs in the queue we expect on their * skb_tx_hash and will put the skbs in the queue we expect on their
* way down to the bonding driver. * way down to the bonding driver.
*/ */
u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
/* /* Save the original txq to restore before passing to the driver */
* Save the original txq to restore before passing to the driver
*/
qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
if (unlikely(txq >= dev->real_num_tx_queues)) { if (unlikely(txq >= dev->real_num_tx_queues)) {
...@@ -3740,8 +3686,7 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev) ...@@ -3740,8 +3686,7 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct bonding *bond = netdev_priv(dev); struct bonding *bond = netdev_priv(dev);
netdev_tx_t ret = NETDEV_TX_OK; netdev_tx_t ret = NETDEV_TX_OK;
/* /* If we risk deadlock from transmitting this in the
* If we risk deadlock from transmitting this in the
* netpoll path, tell netpoll to queue the frame for later tx * netpoll path, tell netpoll to queue the frame for later tx
*/ */
if (unlikely(is_netpoll_tx_blocked(dev))) if (unlikely(is_netpoll_tx_blocked(dev)))
...@@ -3865,8 +3810,7 @@ void bond_setup(struct net_device *bond_dev) ...@@ -3865,8 +3810,7 @@ void bond_setup(struct net_device *bond_dev)
bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT; bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT;
bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
/* don't acquire bond device's netif_tx_lock when /* don't acquire bond device's netif_tx_lock when transmitting */
* transmitting */
bond_dev->features |= NETIF_F_LLTX; bond_dev->features |= NETIF_F_LLTX;
/* By default, we declare the bond to be fully /* By default, we declare the bond to be fully
...@@ -3889,10 +3833,9 @@ void bond_setup(struct net_device *bond_dev) ...@@ -3889,10 +3833,9 @@ void bond_setup(struct net_device *bond_dev)
bond_dev->features |= bond_dev->hw_features; bond_dev->features |= bond_dev->hw_features;
} }
/* /* Destroy a bonding device.
* Destroy a bonding device. * Must be under rtnl_lock when this function is called.
* Must be under rtnl_lock when this function is called. */
*/
static void bond_uninit(struct net_device *bond_dev) static void bond_uninit(struct net_device *bond_dev)
{ {
struct bonding *bond = netdev_priv(bond_dev); struct bonding *bond = netdev_priv(bond_dev);
...@@ -3920,9 +3863,7 @@ static int bond_check_params(struct bond_params *params) ...@@ -3920,9 +3863,7 @@ static int bond_check_params(struct bond_params *params)
const struct bond_opt_value *valptr; const struct bond_opt_value *valptr;
int arp_all_targets_value; int arp_all_targets_value;
/* /* Convert string parameters. */
* Convert string parameters.
*/
if (mode) { if (mode) {
bond_opt_initstr(&newval, mode); bond_opt_initstr(&newval, mode);
valptr = bond_opt_parse(bond_opt_get(BOND_OPT_MODE), &newval); valptr = bond_opt_parse(bond_opt_get(BOND_OPT_MODE), &newval);
...@@ -4099,9 +4040,9 @@ static int bond_check_params(struct bond_params *params) ...@@ -4099,9 +4040,9 @@ static int bond_check_params(struct bond_params *params)
for (arp_ip_count = 0, i = 0; for (arp_ip_count = 0, i = 0;
(arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[i]; i++) { (arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[i]; i++) {
/* not complete check, but should be good enough to
catch mistakes */
__be32 ip; __be32 ip;
/* not a complete check, but good enough to catch mistakes */
if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) || if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) ||
!bond_is_ip_target_ok(ip)) { !bond_is_ip_target_ok(ip)) {
pr_warn("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n", pr_warn("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
...@@ -4284,9 +4225,7 @@ static void bond_set_lockdep_class(struct net_device *dev) ...@@ -4284,9 +4225,7 @@ static void bond_set_lockdep_class(struct net_device *dev)
dev->qdisc_tx_busylock = &bonding_tx_busylock_key; dev->qdisc_tx_busylock = &bonding_tx_busylock_key;
} }
/* /* Called from registration process */
* Called from registration process
*/
static int bond_init(struct net_device *bond_dev) static int bond_init(struct net_device *bond_dev)
{ {
struct bonding *bond = netdev_priv(bond_dev); struct bonding *bond = netdev_priv(bond_dev);
...@@ -4440,9 +4379,7 @@ static void __exit bonding_exit(void) ...@@ -4440,9 +4379,7 @@ static void __exit bonding_exit(void)
unregister_pernet_subsys(&bond_net_ops); unregister_pernet_subsys(&bond_net_ops);
#ifdef CONFIG_NET_POLL_CONTROLLER #ifdef CONFIG_NET_POLL_CONTROLLER
/* /* Make sure we don't have an imbalance on our netpoll blocking */
* Make sure we don't have an imbalance on our netpoll blocking
*/
WARN_ON(atomic_read(&netpoll_block_tx)); WARN_ON(atomic_read(&netpoll_block_tx));
#endif #endif
} }
......
...@@ -91,7 +91,6 @@ static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifna ...@@ -91,7 +91,6 @@ static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifna
* creates and deletes entire bonds. * creates and deletes entire bonds.
* *
* The class parameter is ignored. * The class parameter is ignored.
*
*/ */
static ssize_t bonding_store_bonds(struct class *cls, static ssize_t bonding_store_bonds(struct class *cls,
struct class_attribute *attr, struct class_attribute *attr,
......
...@@ -197,7 +197,8 @@ struct bonding { ...@@ -197,7 +197,8 @@ struct bonding {
struct slave *); struct slave *);
/* mode_lock is used for mode-specific locking needs, currently used by: /* mode_lock is used for mode-specific locking needs, currently used by:
* 3ad mode (4) - protect against running bond_3ad_unbind_slave() and * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
* bond_3ad_state_machine_handler() concurrently. * bond_3ad_state_machine_handler() concurrently and also
* the access to the state machine shared variables.
* TLB mode (5) - to sync the use and modifications of its hash table * 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 * ALB mode (6) - to sync the use and modifications of its hash table
*/ */
......
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