linux-kernel - Re: [PATCH] drm/msm/a6xx: add CONFIG_QCOM

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Message-ID: <CAK8P3a3jUQs6c5tESSNMbqfuymewj9FhqRizyHcfOXf8Rgy-nA@mail.gmail.com>
Date:   Sun, 3 Jan 2021 16:24:15 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sharat Masetty <smasetty@...eaurora.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        kbuild-all@...ts.01.org, Arnd Bergmann <arnd@...db.de>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Tanmay Shah <tanmay@...eaurora.org>
Subject: Re: [PATCH] drm/msm/a6xx: add CONFIG_QCOM_LLCC dependency

On Sun, Jan 3, 2021 at 4:09 PM kernel 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 v5.11-rc1 next-20201223]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/drm-msm-a6xx-add-CONFIG_QCOM_LLCC-dependency/20210103-220704
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3516bd729358a2a9b090c1905bd2a3fa926e24c6
> config: i386-randconfig-m021-20210103 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
> reproduce (this is a W=1 build):
>         # https://github.com/0day-ci/linux/commit/7d8b8d7954012e210a5e6c77103e52382c6b5503
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Arnd-Bergmann/drm-msm-a6xx-add-CONFIG_QCOM_LLCC-dependency/20210103-220704
>         git checkout 7d8b8d7954012e210a5e6c77103e52382c6b5503
>         # save the attached .config to linux build tree
>         make W=1 ARCH=i386
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
> >> drivers/gpu/drm/Kconfig:74:error: recursive dependency detected!
>    drivers/gpu/drm/Kconfig:74: symbol DRM_KMS_HELPER is selected by DRM_MSM
>    drivers/gpu/drm/msm/Kconfig:3: symbol DRM_MSM depends on QCOM_COMMAND_DB
>    drivers/soc/qcom/Kconfig:19: symbol QCOM_COMMAND_DB depends on OF_RESERVED_MEM
>    drivers/of/Kconfig:80: symbol OF_RESERVED_MEM default is visible depending on DMA_CMA
>    kernel/dma/Kconfig:109: symbol DMA_CMA is selected by FB_HYPERV
>    drivers/video/fbdev/Kconfig:2182: symbol FB_HYPERV depends on FB
>    drivers/video/fbdev/Kconfig:12: symbol FB is selected by DRM_KMS_FB_HELPER
>    drivers/gpu/drm/Kconfig:80: symbol DRM_KMS_FB_HELPER depends on DRM_KMS_HELPER
>    For a resolution refer to Documentation/kbuild/kconfig-language.rst
>    subsection "Kconfig recursive dependency limitations"

Ah, this depends on another patch of mine that I have in my randconfig tree, to
replace the 'select FB' in DRM_KMS_FB_HELPER with 'depends on FB'.

Should I resend that patch, or would someone suggest a different fix for
the CONFIG_QCOM_LLCC dependency issue?

       Arnd