bonding: show all the link status of slaves

There are four link statuses of a bonding slave, the procfs
code shows a wrong status when using downdelay/updelay:

	(slave->link == BOND_LINK_UP) ?  "up" : "down"

It doesn't respect the rest two statuses. This patch fixes it.

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index ad284baafe87df64599c3335106a31aa0d6b3ec0..3cea38d373446826b7163974ed8e0b0836d19dc3 100644 (file)
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -150,14 +150,25 @@ static void bond_info_show_master(struct seq_file *seq)
        }
 }
 
+static const char *bond_slave_link_status(s8 link)
+{
+       static const char * const status[] = {
+               [BOND_LINK_UP] = "up",
+               [BOND_LINK_FAIL] = "going down",
+               [BOND_LINK_DOWN] = "down",
+               [BOND_LINK_BACK] = "going back",
+       };
+
+       return status[link];
+}
+
 static void bond_info_show_slave(struct seq_file *seq,
                                 const struct slave *slave)
 {
        struct bonding *bond = seq->private;
 
        seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
-       seq_printf(seq, "MII Status: %s\n",
-                  (slave->link == BOND_LINK_UP) ?  "up" : "down");
+       seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
        if (slave->speed == SPEED_UNKNOWN)
                seq_printf(seq, "Speed: %s\n", "Unknown");
        else