linux-kernel - Re: [PATCH 8/8] ALSA: add new 32-bit layout for snd_pcm_mmap

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Date:   Thu, 26 Apr 2018 13:34:34 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     kbuild test robot <lkp@...el.com>
Cc:     Baolin Wang <baolin.wang@...aro.org>, kbuild-all@...org,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>,
        Ingo Molnar <mingo@...nel.org>,
        SF Markus Elfring <elfring@...rs.sourceforge.net>,
        Dan Carpenter <dan.carpenter@...cle.com>, jeeja.kp@...el.com,
        Vinod Koul <vinod.koul@...el.com>,
        Guneshwor Singh <guneshwor.o.singh@...el.com>,
        subhransu.s.prusty@...el.com, Bhumika Goyal <bhumirks@...il.com>,
        gudishax.kranthikumar@...el.com, Naveen M <naveen.m@...el.com>,
        hardik.t.shah@...el.com, Arvind Yadav <arvind.yadav.cs@...il.com>,
        Fabian Frederick <fabf@...net.be>, alsa-devel@...a-project.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 8/8] ALSA: add new 32-bit layout for snd_pcm_mmap_status/control

On Thu, Apr 26, 2018 at 5:07 AM, kbuild test robot <lkp@...el.com> wrote:
> Hi Arnd,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on v4.17-rc2]
> [cannot apply to sound/for-next asoc/for-next arm-soc/for-next next-20180424]
> [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/Baolin-Wang/Fix-year-2038-issue-for-sound-subsystem/20180426-010145
> config: i386-randconfig-n0-201816 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386
>
> All errors (new ones prefixed by >>):
>
>>> sound/core/pcm_native.c:2827:25: error: field 'tstamp' has incomplete type
>      struct compat_timespec tstamp;
>                             ^~~~~~
>>> sound/core/pcm_native.c:2829:25: error: field 'audio_tstamp' has incomplete type
>      struct compat_timespec audio_tstamp;
>                             ^~~~~~~~~~~~

This is due to a dependency on one of Deepa's patches that is
currently in linux-next,
scheduled for 4.18-rc1, but that won't be in 4.17.

It seems likely that we won't come to a conclusion in time for 4.18
anyway, so that's
probably fine. If we want the patches in 4.18, I can come up with a
different way of
doing this.

       Arnd