[IPVS]: Document the ports option to ip_vs_ftp in kernel-parameters.txt

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>

1 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7947cede8712..87a17337c7f6 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -697,6 +697,12 @@ running once the system is up.
         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