4 files changed, 19 insertions, 9 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4dd5ee2a34cc..36eab0c4fb33 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4110,7 +4110,7 @@ static int bond_check_params(struct bond_params *params)
                 if (!miimon) {
                         pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure, speed and duplex which are essential for 802.3ad operation\n");
                         pr_warning("Forcing miimon to 100msec\n");
-                        miimon = 100;
+                        miimon = BOND_DEFAULT_MIIMON;
                 }
         }
 
@@ -4147,7 +4147,7 @@ static int bond_check_params(struct bond_params *params)
                 if (!miimon) {
                         pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure and link speed which are essential for TLB/ALB load balancing\n");
                         pr_warning("Forcing miimon to 100msec\n");
-                        miimon = 100;
+                        miimon = BOND_DEFAULT_MIIMON;
                 }
         }
 
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 9a5223c7b4d1..ea6f640782b7 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -45,10 +45,15 @@ int bond_option_mode_set(struct bonding *bond, int mode)
                 return -EPERM;
         }
 
-        if (BOND_MODE_IS_LB(mode) && bond->params.arp_interval) {
-                pr_err("%s: %s mode is incompatible with arp monitoring.\n",
-                       bond->dev->name, bond_mode_tbl[mode].modename);
-                return -EINVAL;
+        if (BOND_NO_USES_ARP(mode) && bond->params.arp_interval) {
+                pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n",
+                        bond->dev->name, bond_mode_tbl[mode].modename);
+                /* disable arp monitoring */
+                bond->params.arp_interval = 0;
+                /* set miimon to default value */
+                bond->params.miimon = BOND_DEFAULT_MIIMON;
+                pr_info("%s: Setting MII monitoring interval to %d.\n",
+                        bond->dev->name, bond->params.miimon);
         }
 
         /* don't cache arp_validate between modes */
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 0ec2a7e8c8a9..abf5e106edc5 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -523,9 +523,7 @@ static ssize_t bonding_store_arp_interval(struct device *d,
                 ret = -EINVAL;
                 goto out;
         }
-        if (bond->params.mode == BOND_MODE_ALB ||
-            bond->params.mode == BOND_MODE_TLB ||
-            bond->params.mode == BOND_MODE_8023AD) {
+        if (BOND_NO_USES_ARP(bond->params.mode)) {
                 pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n",
                         bond->dev->name, bond->dev->name);
                 ret = -EINVAL;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index ca31286aa028..a9f4f9f4d8ce 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -35,6 +35,8 @@
 
 #define BOND_MAX_ARP_TARGETS    16
 
+#define BOND_DEFAULT_MIIMON     100
+
 #define IS_UP(dev)                                         \
               ((((dev)->flags & IFF_UP) == IFF_UP)      && \
                netif_running(dev)                       && \
@@ -55,6 +57,11 @@
                  ((mode) == BOND_MODE_TLB)          ||  \
                  ((mode) == BOND_MODE_ALB))
 
+#define BOND_NO_USES_ARP(mode)                          \
+                (((mode) == BOND_MODE_8023AD)   ||      \
+                 ((mode) == BOND_MODE_TLB)      ||      \
+                 ((mode) == BOND_MODE_ALB))
+
 #define TX_QUEUE_OVERRIDE(mode)                         \
                         (((mode) == BOND_MODE_ACTIVEBACKUP) ||  \
                          ((mode) == BOND_MODE_ROUNDROBIN))