bonding: Fix up parameter parsing

	A recent change to add an additional hash policy modified
bond_parse_parm, but it now does not correctly match parameters passed in
via sysfs.

	Rewrote bond_parse_parm to handle (a) parameter matches that
are substrings of one another and (b) user input with whitespace (e.g.,
sysfs input often has a trailing newline).

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index e1e4734e23ce..6d83be49899a 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -141,6 +141,8 @@ struct bond_parm_tbl {
         int mode;
 };
 
+#define BOND_MAX_MODENAME_LEN 20
+
 struct vlan_entry {
         struct list_head vlan_list;
         __be32 vlan_ip;
@@ -314,7 +316,7 @@ void bond_mii_monitor(struct work_struct *);
 void bond_loadbalance_arp_mon(struct work_struct *);
 void bond_activebackup_arp_mon(struct work_struct *);
 void bond_set_mode_ops(struct bonding *bond, int mode);
-int bond_parse_parm(char *mode_arg, struct bond_parm_tbl *tbl);
+int bond_parse_parm(const char *mode_arg, struct bond_parm_tbl *tbl);
 void bond_select_active_slave(struct bonding *bond);
 void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
 void bond_register_arp(struct bonding *);