Re: struct ifnet and ifaddr handling [was: Re: Making global variables of if.c MPSAFE]

[Masao Uebayashi <uebayasi%gmail.com@localhost>]

On Wed, Nov 26, 2014 at 1:31 AM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
>> I'd change if__pad1 to if_flags2 and define IFF2_SLOWTIMO_MPSAFE etc.
>
> Hmm, I think it's a last resort. I don't want to do something like
> (ifp->if_flags & IFF_XXX) && (ifp->if_flags2 & IFF_XXX2) if possible.
>
> I'm thinking more to avoid the separation.

It's a temporary measure until a good struct ifnet will be designed.

I propose to keep ABI by reusing if__pad1.  If you propose ABI
breakage, you should understand it and estimate the impact by
yourself. :)