bonding: fix disabling of arp_interval and miimon

[ Upstream commit 1bc7db16782c2a581fb4d53ca853631050f31611 ]

Currently if either arp_interval or miimon is disabled, they both get
disabled, and upon disabling they get executed once more which is not
the proper behaviour. Also when doing a no-op and disabling an already
disabled one, the other again gets disabled.
Also fix the error messages with the proper valid ranges, and a small
typo fix in the up delay error message (outputting "down delay", instead
of "up delay").

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 8d923d3..8ed48c2 100644 (file)
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -528,7 +528,7 @@ static ssize_t bonding_store_arp_interval(struct device *d,
                goto out;
        }
        if (new_value < 0) {
-               pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n",
+               pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n",
                       bond->dev->name, new_value, INT_MAX);
                ret = -EINVAL;
                goto out;
@@ -543,14 +543,15 @@ static ssize_t bonding_store_arp_interval(struct device *d,
        pr_info("%s: Setting ARP monitoring interval to %d.\n",
                bond->dev->name, new_value);
        bond->params.arp_interval = new_value;
-       if (bond->params.miimon) {
-               pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n",
-                       bond->dev->name, bond->dev->name);
-               bond->params.miimon = 0;
-       }
-       if (!bond->params.arp_targets[0]) {
-               pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n",
-                       bond->dev->name);
+       if (new_value) {
+               if (bond->params.miimon) {
+                       pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n",
+                               bond->dev->name, bond->dev->name);
+                       bond->params.miimon = 0;
+               }
+               if (!bond->params.arp_targets[0])
+                       pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n",
+                               bond->dev->name);
        }
        if (bond->dev->flags & IFF_UP) {
                /* If the interface is up, we may need to fire off
@@ -558,10 +559,13 @@ static ssize_t bonding_store_arp_interval(struct device *d,
                 * timer will get fired off when the open function
                 * is called.
                 */
-               cancel_delayed_work_sync(&bond->mii_work);
-               queue_delayed_work(bond->wq, &bond->arp_work, 0);
+               if (!new_value) {
+                       cancel_delayed_work_sync(&bond->arp_work);
+               } else {
+                       cancel_delayed_work_sync(&bond->mii_work);
+                       queue_delayed_work(bond->wq, &bond->arp_work, 0);
+               }
        }
-
 out:
        rtnl_unlock();
        return ret;
@@ -703,7 +707,7 @@ static ssize_t bonding_store_downdelay(struct device *d,
        }
        if (new_value < 0) {
                pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n",
-                      bond->dev->name, new_value, 1, INT_MAX);
+                      bond->dev->name, new_value, 0, INT_MAX);
                ret = -EINVAL;
                goto out;
        } else {
@@ -758,8 +762,8 @@ static ssize_t bonding_store_updelay(struct device *d,
                goto out;
        }
        if (new_value < 0) {
-               pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n",
-                      bond->dev->name, new_value, 1, INT_MAX);
+               pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n",
+                      bond->dev->name, new_value, 0, INT_MAX);
                ret = -EINVAL;
                goto out;
        } else {
@@ -969,37 +973,37 @@ static ssize_t bonding_store_miimon(struct device *d,
        }
        if (new_value < 0) {
                pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n",
-                      bond->dev->name, new_value, 1, INT_MAX);
+                      bond->dev->name, new_value, 0, INT_MAX);
                ret = -EINVAL;
                goto out;
-       } else {
-               pr_info("%s: Setting MII monitoring interval to %d.\n",
-                       bond->dev->name, new_value);
-               bond->params.miimon = new_value;
-               if (bond->params.updelay)
-                       pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n",
-                               bond->dev->name,
-                               bond->params.updelay * bond->params.miimon);
-               if (bond->params.downdelay)
-                       pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n",
-                               bond->dev->name,
-                               bond->params.downdelay * bond->params.miimon);
-               if (bond->params.arp_interval) {
-                       pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n",
-                               bond->dev->name);
-                       bond->params.arp_interval = 0;
-                       if (bond->params.arp_validate) {
-                               bond->params.arp_validate =
-                                       BOND_ARP_VALIDATE_NONE;
-                       }
-               }
-
-               if (bond->dev->flags & IFF_UP) {
-                       /* If the interface is up, we may need to fire off
-                        * the MII timer. If the interface is down, the
-                        * timer will get fired off when the open function
-                        * is called.
-                        */
+       }
+       pr_info("%s: Setting MII monitoring interval to %d.\n",
+               bond->dev->name, new_value);
+       bond->params.miimon = new_value;
+       if (bond->params.updelay)
+               pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n",
+                       bond->dev->name,
+                       bond->params.updelay * bond->params.miimon);
+       if (bond->params.downdelay)
+               pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n",
+                       bond->dev->name,
+                       bond->params.downdelay * bond->params.miimon);
+       if (new_value && bond->params.arp_interval) {
+               pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n",
+                       bond->dev->name);
+               bond->params.arp_interval = 0;
+               if (bond->params.arp_validate)
+                       bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
+       }
+       if (bond->dev->flags & IFF_UP) {
+               /* If the interface is up, we may need to fire off
+                * the MII timer. If the interface is down, the
+                * timer will get fired off when the open function
+                * is called.
+                */
+               if (!new_value) {
+                       cancel_delayed_work_sync(&bond->mii_work);
+               } else {
                        cancel_delayed_work_sync(&bond->arp_work);
                        queue_delayed_work(bond->wq, &bond->mii_work, 0);
                }