Re: [RFC v2 2/4] net: enables interface option to skip IP

From: Luis R. Rodriguez
Date: Wed Feb 19 2014 - 12:13:42 EST


On Tue, Feb 18, 2014 at 1:42 PM, Stephen Hemminger
<stephen@xxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 18 Feb 2014 13:19:15 -0800
> "Luis R. Rodriguez" <mcgrof@xxxxxxxxxxxxxxxx> wrote:
>
>> Sure, but note that the both disable_ipv6 and accept_dada sysctl
>> parameters are global. ipv4 and ipv6 interfaces are created upon
>> NETDEVICE_REGISTER, which will get triggered when a driver calls
>> register_netdev(). The goal of this patch was to enable an early
>> optimization for drivers that have no need ever for ipv4 or ipv6
>> interfaces.
>
> The trick with ipv6 is to register the device, then have userspace
> do the ipv6 sysctl before bringing the device up.

Nice, thanks!

Luis
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