netdev - Re: [PATCH] [v2] infiniband: i40iw, nes: don't use wall time for TCP sequence numbers

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Message-ID: <CAK8P3a2B-YOsfgomq_ggAM8kzbCe6jB8_K8wiEe5v4Thjm=YJA@mail.gmail.com>
Date:   Thu, 5 Jul 2018 15:15:44 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...org, Faisal Latif <faisal.latif@...el.com>,
        Shiraz Saleem <shiraz.saleem@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "David S. Miller" <davem@...emloft.net>,
        Henry Orosco <henry.orosco@...el.com>,
        Tatyana Nikolova <tatyana.e.nikolova@...el.com>,
        Mustafa Ismail <mustafa.ismail@...el.com>,
        Bart Van Assche <bart.vanassche@....com>,
        Yuval Shaia <yuval.shaia@...cle.com>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH] [v2] infiniband: i40iw, nes: don't use wall time for TCP
 sequence numbers

On Sat, Jun 30, 2018 at 9:00 PM, kbuild test robot <lkp@...el.com> wrote:
> Hi Arnd,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.18-rc2 next-20180629]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/infiniband-i40iw-nes-don-t-use-wall-time-for-TCP-sequence-numbers/20180627-221142
> config: x86_64-randconfig-s2-06302231 (attached as .config)
> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
>    drivers/infiniband/hw/i40iw/i40iw_cm.o: In function `i40iw_make_cm_node':
>>> drivers/infiniband/hw/i40iw/i40iw_cm.c:2232: undefined reference to `secure_tcpv6_seq'
>

Fixed this now by added a

        depends on IPV6 || !IPV6

dependency in Kconfig. This ensures that with IPV6=m, i40iw cannot be built-in.

Will send v3 after a little more build testing.

      Arnd