diff options
Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
| -rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 133 |
1 files changed, 71 insertions, 62 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index b60835f5865..2dfb4bf9008 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1025,6 +1025,7 @@ static ssize_t bonding_store_primary(struct device *d, int i; struct slave *slave; struct bonding *bond = to_bond(d); + char ifname[IFNAMSIZ]; if (!rtnl_trylock()) return restart_syscall(); @@ -1035,32 +1036,33 @@ static ssize_t bonding_store_primary(struct device *d, if (!USES_PRIMARY(bond->params.mode)) { pr_info("%s: Unable to set primary slave; %s is in mode %d\n", bond->dev->name, bond->dev->name, bond->params.mode); - } else { - bond_for_each_slave(bond, slave, i) { - if (strnicmp - (slave->dev->name, buf, - strlen(slave->dev->name)) == 0) { - pr_info("%s: Setting %s as primary slave.\n", - bond->dev->name, slave->dev->name); - bond->primary_slave = slave; - strcpy(bond->params.primary, slave->dev->name); - bond_select_active_slave(bond); - goto out; - } - } + goto out; + } - /* if we got here, then we didn't match the name of any slave */ + sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ - if (strlen(buf) == 0 || buf[0] == '\n') { - pr_info("%s: Setting primary slave to None.\n", - bond->dev->name); - bond->primary_slave = NULL; - bond_select_active_slave(bond); - } else { - pr_info("%s: Unable to set %.*s as primary slave as it is not a slave.\n", - bond->dev->name, (int)strlen(buf) - 1, buf); + /* check to see if we are clearing primary */ + if (!strlen(ifname) || buf[0] == '\n') { + pr_info("%s: Setting primary slave to None.\n", + bond->dev->name); + bond->primary_slave = NULL; + bond_select_active_slave(bond); + goto out; + } + + bond_for_each_slave(bond, slave, i) { + if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { + pr_info("%s: Setting %s as primary slave.\n", + bond->dev->name, slave->dev->name); + bond->primary_slave = slave; + strcpy(bond->params.primary, slave->dev->name); + bond_select_active_slave(bond); + goto out; } } + + pr_info("%s: Unable to set %.*s as primary slave.\n", + bond->dev->name, (int)strlen(buf) - 1, buf); out: write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); @@ -1195,6 +1197,7 @@ static ssize_t bonding_store_active_slave(struct device *d, struct slave *old_active = NULL; struct slave *new_active = NULL; struct bonding *bond = to_bond(d); + char ifname[IFNAMSIZ]; if (!rtnl_trylock()) return restart_syscall(); @@ -1203,56 +1206,62 @@ static ssize_t bonding_store_active_slave(struct device *d, read_lock(&bond->lock); write_lock_bh(&bond->curr_slave_lock); - if (!USES_PRIMARY(bond->params.mode)) + if (!USES_PRIMARY(bond->params.mode)) { pr_info("%s: Unable to change active slave; %s is in mode %d\n", bond->dev->name, bond->dev->name, bond->params.mode); - else { - bond_for_each_slave(bond, slave, i) { - if (strnicmp - (slave->dev->name, buf, - strlen(slave->dev->name)) == 0) { - old_active = bond->curr_active_slave; - new_active = slave; - if (new_active == old_active) { - /* do nothing */ - pr_info("%s: %s is already the current active slave.\n", + goto out; + } + + sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ + + /* check to see if we are clearing active */ + if (!strlen(ifname) || buf[0] == '\n') { + pr_info("%s: Clearing current active slave.\n", + bond->dev->name); + bond->curr_active_slave = NULL; + bond_select_active_slave(bond); + goto out; + } + + bond_for_each_slave(bond, slave, i) { + if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { + old_active = bond->curr_active_slave; + new_active = slave; + if (new_active == old_active) { + /* do nothing */ + pr_info("%s: %s is already the current" + " active slave.\n", + bond->dev->name, + slave->dev->name); + goto out; + } + else { + if ((new_active) && + (old_active) && + (new_active->link == BOND_LINK_UP) && + IS_UP(new_active->dev)) { + pr_info("%s: Setting %s as active" + " slave.\n", bond->dev->name, slave->dev->name); - goto out; + bond_change_active_slave(bond, + new_active); } else { - if ((new_active) && - (old_active) && - (new_active->link == BOND_LINK_UP) && - IS_UP(new_active->dev)) { - pr_info("%s: Setting %s as active slave.\n", - bond->dev->name, - slave->dev->name); - bond_change_active_slave(bond, new_active); - } - else { - pr_info("%s: Could not set %s as active slave; either %s is down or the link is down.\n", - bond->dev->name, - slave->dev->name, - slave->dev->name); - } - goto out; + pr_info("%s: Could not set %s as" + " active slave; either %s is" + " down or the link is down.\n", + bond->dev->name, + slave->dev->name, + slave->dev->name); } + goto out; } } - - /* if we got here, then we didn't match the name of any slave */ - - if (strlen(buf) == 0 || buf[0] == '\n') { - pr_info("%s: Setting active slave to None.\n", - bond->dev->name); - bond->primary_slave = NULL; - bond_select_active_slave(bond); - } else { - pr_info("%s: Unable to set %.*s as active slave as it is not a slave.\n", - bond->dev->name, (int)strlen(buf) - 1, buf); - } } + + pr_info("%s: Unable to set %.*s as active slave.\n", + bond->dev->name, (int)strlen(buf) - 1, buf); out: write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); |