linux-kernel - Re: [RESEND][PATCH 1/7 v4] Kconfig: Allow k3dma driver to be selected for more then HISI3xx platforms

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Date:   Mon, 22 Aug 2016 21:24:42 -0700
From:   John Stultz <john.stultz@...aro.org>
To:     kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...org, lkml <linux-kernel@...r.kernel.org>,
        Zhangfei Gao <zhangfei.gao@...aro.org>,
        Krzysztof Kozlowski <k.kozlowski@...sung.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Vinod Koul <vinod.koul@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Mark Brown <broonie@...nel.org>, Andy Green <andy@...mcat.com>
Subject: Re: [RESEND][PATCH 1/7 v4] Kconfig: Allow k3dma driver to be selected
 for more then HISI3xx platforms

On Mon, Aug 22, 2016 at 9:23 PM, kbuild test robot <lkp@...el.com> wrote:
> Hi John,
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.8-rc3 next-20160822]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
> [Check https://git-scm.com/docs/git-format-patch for more information]
>
> url:    https://github.com/0day-ci/linux/commits/John-Stultz/K3DMA-fixes-for-HiKey-HDMI-audio/20160823-070749
> config: i386-allmodconfig (attached as .config)
> compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386
>
> Note: the linux-review/John-Stultz/K3DMA-fixes-for-HiKey-HDMI-audio/20160823-070749 HEAD 1f1a623a69af65b192d7f6e2949d4a2dcf75d137 builds fine.
>       It only hurts bisectibility.
>
> All errors (new ones prefixed by >>):
>
>    drivers/dma/k3dma.c: In function 'k3_dma_prep_memcpy':
>>> drivers/dma/k3dma.c:432:20: error: implicit declaration of function '__virt_to_phys' [-Werror=implicit-function-declaration]
>      ds->desc_hw_lli = __virt_to_phys((unsigned long)&ds->desc_hw[0]);
>                        ^~~~~~~~~~~~~~

Grumble.. Looks like this is due to COMPILE_TEST being enabled in the
i386 config and the Kconfig change happening before the fix to remove
__virt_to_phys from this driver.

Reordering so the Kconfig change is applied last would avoid this.

Vinod/Dan: Would you prefer I resend a new patchset with the fixed
order, or do you mind re-ordering the Kconfig change when you apply?

thanks
-john