netdev - Re: [PATCH net-next 0/6] sock cookie initializers

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Date:   Fri, 6 Jul 2018 14:00:44 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>
Cc:     Network Development <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH net-next 0/6] sock cookie initializers

On Fri, Jul 6, 2018 at 1:24 PM Jesus Sanchez-Palencia
<jesus.sanchez-palencia@...el.com> wrote:
>
>
>
> On 07/06/2018 07:12 AM, Willem de Bruijn wrote:
> > From: Willem de Bruijn <willemb@...gle.com>
> >
> > Recent UDP GSO and SO_TXTIME features added new fields to cookie
> > structs.
> >
> > When adding a field, all sites where a struct is initialized have to
> > be updated, which is a lot of boilerplate. Alternatively, a field can
> > be initialized selectively, but this is fragile. I introduced a bug
> > in udp gso where an uninitialized field was read. See also fix commit
> > ("9887cba19978 ip: limit use of gso_size to udp").
> >
> > Introduce initializers for structs ipcm(6)_cookie and sockc_cookie.
> >
> > patch 1..3 do exactly this.
> > patch 4..5 make ipv4 and ipv6 handle cookies the same way and
> >            remove some boilerplate in doing so.
> > patch 6    removes the udp gso branch that needed the above fix
>
>
> Acked-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>
>
> I've applied this series and tested SO_TXTIME + the etf qdisc and everything is
> working just fine.

Thanks for testing, Jesus!

I also ran the udpgso and txtimestamp tests (and am expanding
the second to run as part of kselftest, and have ipv6 and cmsg support).