bonding: make tbl argument to bond_parse_parm() const

bond_parse_parm() parses a parameter table for a particular value and
is therefore not modifying the table at all.  Therefore make the 2nd
argument const, thus allowing to make the tables const later.
Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bonding/bond_main.c

@@ -4723,7 +4723,7 @@ static void bond_free_all(void)
  * some mode names are substrings of other names, and calls from sysfs
  * may have whitespace in the name (trailing newlines, for example).
  */
-int bond_parse_parm(const char *buf, struct bond_parm_tbl *tbl)
+int bond_parse_parm(const char *buf, const struct bond_parm_tbl *tbl)
 {
 	int mode = -1, i, rv;
 	char *p, modestr[BOND_MAX_MODENAME_LEN + 1] = { 0, };

drivers/net/bonding/bonding.h

@@ -337,7 +337,7 @@ 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(const char *mode_arg, struct bond_parm_tbl *tbl);
+int bond_parse_parm(const char *mode_arg, const 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 *);