IPv6: better document max_addresses parameter

Andrew Morton wrote:
>> >From ip-sysctl.txt file in kernel documentation I can see following description
>> for max_addresses:
>> max_addresses - INTEGER
>>         Number of maximum addresses per interface.  0 disables limitation.
>>         It is recommended not set too large value (or 0) because it would
>>         be too easy way to crash kernel to allow to create too much of
>>         autoconfigured addresses.
           ^^^^^^^^^^^^^^

>> If this parameter applies only for auto-configured IP addressed, please state
>> it more clearly in docs or rename the parameter to show that it refers to
>> auto-configuration.

It did mention autoconfigured in the text, but the below makes it more obvious.

More clearly document IPv6 max_addresses parameter.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 006b39dec87d66f88edc62f9547482f554a6519e..e87f3cdc8a6afc42c36f9469e7afac9b1ec74b82 100644 (file)
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1074,10 +1074,10 @@ regen_max_retry - INTEGER
        Default: 5
 
 max_addresses - INTEGER
-       Number of maximum addresses per interface.  0 disables limitation.
-       It is recommended not set too large value (or 0) because it would
-       be too easy way to crash kernel to allow to create too much of
-       autoconfigured addresses.
+       Maximum number of autoconfigured addresses per interface.  Setting
+       to zero disables the limitation.  It is not recommended to set this
+       value too large (or to zero) because it would be an easy way to
+       crash the kernel by allowing too many addresses to be created.
        Default: 16
 
 disable_ipv6 - BOOLEAN