I'm not sure if documenting this here is appropriate, but
if it is, here is some text to put there.
Signed-Off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
        ips=            [HW,SCSI] Adaptec / IBM ServeRAID controller
                        See header of drivers/scsi/ips.c.
 
+       ports=          [IP_VS_FTP] IPVS ftp helper module
+                       Default is 21.
+                       Up to 8 (IP_VS_APP_MAX_PORTS) ports
+                       may be specified.
+                       Format: <port>,<port>....
+
        irqfixup        [HW]
                        When an interrupt is not handled search all handlers
                        for it. Intended to get systems with badly broken