net: convert multicast list to list_head
Converts the list and the core manipulating with it to be the same as uc_list.
+uses two functions for adding/removing mc address (normal and "global"
variant) instead of a function parameter.
+removes dev_mcast.c completely.
+exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
manipulation with lists on a sandbox (used in bonding and 80211 drivers)
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d6ae63b..22682f1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -762,32 +762,6 @@
/*----------------------------- Multicast list ------------------------------*/
/*
- * Returns 0 if dmi1 and dmi2 are the same, non-0 otherwise
- */
-static inline int bond_is_dmi_same(const struct dev_mc_list *dmi1,
- const struct dev_mc_list *dmi2)
-{
- return memcmp(dmi1->dmi_addr, dmi2->dmi_addr, dmi1->dmi_addrlen) == 0 &&
- dmi1->dmi_addrlen == dmi2->dmi_addrlen;
-}
-
-/*
- * returns dmi entry if found, NULL otherwise
- */
-static struct dev_mc_list *bond_mc_list_find_dmi(struct dev_mc_list *dmi,
- struct dev_mc_list *mc_list)
-{
- struct dev_mc_list *idmi;
-
- for (idmi = mc_list; idmi; idmi = idmi->next) {
- if (bond_is_dmi_same(dmi, idmi))
- return idmi;
- }
-
- return NULL;
-}
-
-/*
* Push the promiscuity flag down to appropriate slaves
*/
static int bond_set_promiscuity(struct bonding *bond, int inc)
@@ -839,18 +813,18 @@
* Add a Multicast address to slaves
* according to mode
*/
-static void bond_mc_add(struct bonding *bond, void *addr, int alen)
+static void bond_mc_add(struct bonding *bond, void *addr)
{
if (USES_PRIMARY(bond->params.mode)) {
/* write lock already acquired */
if (bond->curr_active_slave)
- dev_mc_add(bond->curr_active_slave->dev, addr, alen, 0);
+ dev_mc_add(bond->curr_active_slave->dev, addr);
} else {
struct slave *slave;
int i;
bond_for_each_slave(bond, slave, i)
- dev_mc_add(slave->dev, addr, alen, 0);
+ dev_mc_add(slave->dev, addr);
}
}
@@ -858,18 +832,17 @@
* Remove a multicast address from slave
* according to mode
*/
-static void bond_mc_delete(struct bonding *bond, void *addr, int alen)
+static void bond_mc_del(struct bonding *bond, void *addr)
{
if (USES_PRIMARY(bond->params.mode)) {
/* write lock already acquired */
if (bond->curr_active_slave)
- dev_mc_delete(bond->curr_active_slave->dev, addr,
- alen, 0);
+ dev_mc_del(bond->curr_active_slave->dev, addr);
} else {
struct slave *slave;
int i;
bond_for_each_slave(bond, slave, i) {
- dev_mc_delete(slave->dev, addr, alen, 0);
+ dev_mc_del(slave->dev, addr);
}
}
}
@@ -896,66 +869,22 @@
}
/*
- * Totally destroys the mc_list in bond
- */
-static void bond_mc_list_destroy(struct bonding *bond)
-{
- struct dev_mc_list *dmi;
-
- dmi = bond->mc_list;
- while (dmi) {
- bond->mc_list = dmi->next;
- kfree(dmi);
- dmi = bond->mc_list;
- }
-
- bond->mc_list = NULL;
-}
-
-/*
- * Copy all the Multicast addresses from src to the bonding device dst
- */
-static int bond_mc_list_copy(struct dev_mc_list *mc_list, struct bonding *bond,
- gfp_t gfp_flag)
-{
- struct dev_mc_list *dmi, *new_dmi;
-
- for (dmi = mc_list; dmi; dmi = dmi->next) {
- new_dmi = kmalloc(sizeof(struct dev_mc_list), gfp_flag);
-
- if (!new_dmi) {
- /* FIXME: Potential memory leak !!! */
- return -ENOMEM;
- }
-
- new_dmi->next = bond->mc_list;
- bond->mc_list = new_dmi;
- new_dmi->dmi_addrlen = dmi->dmi_addrlen;
- memcpy(new_dmi->dmi_addr, dmi->dmi_addr, dmi->dmi_addrlen);
- new_dmi->dmi_users = dmi->dmi_users;
- new_dmi->dmi_gusers = dmi->dmi_gusers;
- }
-
- return 0;
-}
-
-/*
* flush all members of flush->mc_list from device dev->mc_list
*/
static void bond_mc_list_flush(struct net_device *bond_dev,
struct net_device *slave_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
- struct dev_mc_list *dmi;
+ struct netdev_hw_addr *ha;
- for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next)
- dev_mc_delete(slave_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
+ netdev_for_each_mc_addr(ha, bond_dev)
+ dev_mc_del(slave_dev, ha->addr);
if (bond->params.mode == BOND_MODE_8023AD) {
/* del lacpdu mc addr from mc list */
u8 lacpdu_multicast[ETH_ALEN] = MULTICAST_LACPDU_ADDR;
- dev_mc_delete(slave_dev, lacpdu_multicast, ETH_ALEN, 0);
+ dev_mc_del(slave_dev, lacpdu_multicast);
}
}
@@ -969,7 +898,7 @@
static void bond_mc_swap(struct bonding *bond, struct slave *new_active,
struct slave *old_active)
{
- struct dev_mc_list *dmi;
+ struct netdev_hw_addr *ha;
if (!USES_PRIMARY(bond->params.mode))
/* nothing to do - mc list is already up-to-date on
@@ -984,9 +913,8 @@
if (bond->dev->flags & IFF_ALLMULTI)
dev_set_allmulti(old_active->dev, -1);
- for (dmi = bond->dev->mc_list; dmi; dmi = dmi->next)
- dev_mc_delete(old_active->dev, dmi->dmi_addr,
- dmi->dmi_addrlen, 0);
+ netdev_for_each_mc_addr(ha, bond->dev)
+ dev_mc_del(old_active->dev, ha->addr);
}
if (new_active) {
@@ -997,9 +925,8 @@
if (bond->dev->flags & IFF_ALLMULTI)
dev_set_allmulti(new_active->dev, 1);
- for (dmi = bond->dev->mc_list; dmi; dmi = dmi->next)
- dev_mc_add(new_active->dev, dmi->dmi_addr,
- dmi->dmi_addrlen, 0);
+ netdev_for_each_mc_addr(ha, bond->dev)
+ dev_mc_add(new_active->dev, ha->addr);
bond_resend_igmp_join_requests(bond);
}
}
@@ -1406,7 +1333,7 @@
struct bonding *bond = netdev_priv(bond_dev);
const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
struct slave *new_slave = NULL;
- struct dev_mc_list *dmi;
+ struct netdev_hw_addr *ha;
struct sockaddr addr;
int link_reporting;
int old_features = bond_dev->features;
@@ -1492,7 +1419,7 @@
/* Flush unicast and multicast addresses */
dev_uc_flush(bond_dev);
- dev_addr_discard(bond_dev);
+ dev_mc_flush(bond_dev);
if (slave_dev->type != ARPHRD_ETHER)
bond_setup_by_slave(bond_dev, slave_dev);
@@ -1601,9 +1528,8 @@
netif_addr_lock_bh(bond_dev);
/* upload master's mc_list to new slave */
- for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next)
- dev_mc_add(slave_dev, dmi->dmi_addr,
- dmi->dmi_addrlen, 0);
+ netdev_for_each_mc_addr(ha, bond_dev)
+ dev_mc_add(slave_dev, ha->addr);
netif_addr_unlock_bh(bond_dev);
}
@@ -1611,7 +1537,7 @@
/* add lacpdu mc addr to mc list */
u8 lacpdu_multicast[ETH_ALEN] = MULTICAST_LACPDU_ADDR;
- dev_mc_add(slave_dev, lacpdu_multicast, ETH_ALEN, 0);
+ dev_mc_add(slave_dev, lacpdu_multicast);
}
bond_add_vlans_on_slave(bond, slave_dev);
@@ -3913,10 +3839,24 @@
return res;
}
+static bool bond_addr_in_mc_list(unsigned char *addr,
+ struct netdev_hw_addr_list *list,
+ int addrlen)
+{
+ struct netdev_hw_addr *ha;
+
+ netdev_hw_addr_list_for_each(ha, list)
+ if (!memcmp(ha->addr, addr, addrlen))
+ return true;
+
+ return false;
+}
+
static void bond_set_multicast_list(struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
- struct dev_mc_list *dmi;
+ struct netdev_hw_addr *ha;
+ bool found;
/*
* Do promisc before checking multicast_mode
@@ -3951,20 +3891,25 @@
bond->flags = bond_dev->flags;
/* looking for addresses to add to slaves' mc list */
- for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next) {
- if (!bond_mc_list_find_dmi(dmi, bond->mc_list))
- bond_mc_add(bond, dmi->dmi_addr, dmi->dmi_addrlen);
+ netdev_for_each_mc_addr(ha, bond_dev) {
+ found = bond_addr_in_mc_list(ha->addr, &bond->mc_list,
+ bond_dev->addr_len);
+ if (!found)
+ bond_mc_add(bond, ha->addr);
}
/* looking for addresses to delete from slaves' list */
- for (dmi = bond->mc_list; dmi; dmi = dmi->next) {
- if (!bond_mc_list_find_dmi(dmi, bond_dev->mc_list))
- bond_mc_delete(bond, dmi->dmi_addr, dmi->dmi_addrlen);
+ netdev_hw_addr_list_for_each(ha, &bond->mc_list) {
+ found = bond_addr_in_mc_list(ha->addr, &bond_dev->mc,
+ bond_dev->addr_len);
+ if (!found)
+ bond_mc_del(bond, ha->addr);
}
/* save master's multicast list */
- bond_mc_list_destroy(bond);
- bond_mc_list_copy(bond_dev->mc_list, bond, GFP_ATOMIC);
+ __hw_addr_flush(&bond->mc_list);
+ __hw_addr_add_multiple(&bond->mc_list, &bond_dev->mc,
+ bond_dev->addr_len, NETDEV_HW_ADDR_T_MULTICAST);
read_unlock(&bond->lock);
}
@@ -4534,9 +4479,7 @@
if (bond->wq)
destroy_workqueue(bond->wq);
- netif_addr_lock_bh(bond_dev);
- bond_mc_list_destroy(bond);
- netif_addr_unlock_bh(bond_dev);
+ __hw_addr_flush(&bond->mc_list);
}
/*------------------------- Module initialization ---------------------------*/
@@ -4908,6 +4851,8 @@
list_add_tail(&bond->bond_list, &bn->dev_list);
bond_prepare_sysfs_group(bond);
+
+ __hw_addr_init(&bond->mc_list);
return 0;
}