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bonding: move slave MTU handling from sysfs V2

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V1->V2: corrected res/ret use

For some reason, MTU handling (storing, and restoring) is taking  place in
bond_sysfs. The correct place for this code is in bond_enslave, bond_release.
So move it there.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2010-05-18 05:42:40 +00:00 committed by David S. Miller
parent 6458590999
commit b15ba0fbdc
2 changed files with 16 additions and 21 deletions
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15
drivers/net/bonding/bond_main.c
View File

@ -1533,6 +1533,14 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
*/
new_slave->original_flags = slave_dev->flags;
/* Save slave's original mtu and then set it to match the bond */
new_slave->original_mtu = slave_dev->mtu;
res = dev_set_mtu(slave_dev, bond->dev->mtu);
if (res) {
pr_debug("Error %d calling dev_set_mtu\n", res);
goto err_free;
}
/*
* Save slave's original ("permanent") mac address for modes
* that need it, and for restoring it upon release, and then
@ -1550,7 +1558,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
res = dev_set_mac_address(slave_dev, &addr);
if (res) {
pr_debug("Error %d calling set_mac_address\n", res);
goto err_free;
goto err_restore_mtu;
}
}
@ -1785,6 +1793,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
dev_set_mac_address(slave_dev, &addr);
}
err_restore_mtu:
dev_set_mtu(slave_dev, new_slave->original_mtu);
err_free:
kfree(new_slave);
@ -1969,6 +1980,8 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
dev_set_mac_address(slave_dev, &addr);
}
dev_set_mtu(slave_dev, slave->original_mtu);
slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB |
IFF_SLAVE_INACTIVE | IFF_BONDING |
IFF_SLAVE_NEEDARP);

22
drivers/net/bonding/bond_sysfs.c
View File

@ -220,7 +220,6 @@ static ssize_t bonding_store_slaves(struct device *d,
char command[IFNAMSIZ + 1] = { 0, };
char *ifname;
int i, res, ret = count;
u32 original_mtu;
struct slave *slave;
struct net_device *dev = NULL;
struct bonding *bond = to_bond(d);
@ -281,18 +280,7 @@ static ssize_t bonding_store_slaves(struct device *d,
memcpy(bond->dev->dev_addr, dev->dev_addr,
dev->addr_len);
/* Set the slave's MTU to match the bond */
original_mtu = dev->mtu;
res = dev_set_mtu(dev, bond->dev->mtu);
if (res) {
ret = res;
goto out;
}
res = bond_enslave(bond->dev, dev);
bond_for_each_slave(bond, slave, i)
if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0)
slave->original_mtu = original_mtu;
if (res)
ret = res;
@ -301,23 +289,17 @@ static ssize_t bonding_store_slaves(struct device *d,
if (command[0] == '-') {
dev = NULL;
original_mtu = 0;
bond_for_each_slave(bond, slave, i)
if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
dev = slave->dev;
original_mtu = slave->original_mtu;
break;
}
if (dev) {
pr_info("%s: Removing slave %s\n",
bond->dev->name, dev->name);
res = bond_release(bond->dev, dev);
if (res) {
res = bond_release(bond->dev, dev);
if (res)
ret = res;
goto out;
}
/* set the slave MTU to the default */
dev_set_mtu(dev, original_mtu);
} else {
pr_err("unable to remove non-existent slave %s for bond %s.\n",
ifname, bond->dev->name);