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Date:   Mon, 04 Jan 2021 12:53:57 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     kernel test robot <lkp@...el.com>, 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>,
        kbuild-all@...ts.01.org, Arnd Bergmann <arnd@...db.de>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        linux-kernel@...r.kernel.org, Tanmay Shah <tanmay@...eaurora.org>
Subject: Re: [PATCH] drm/msm/a6xx: add CONFIG_QCOM_LLCC dependency

Hi Arnd,

On 2021-01-03 20:54, Arnd Bergmann wrote:
> 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?
> 

Thanks, your patch looks good to me unless Rob has some other idea. Once 
the recursive
dependency thing is sorted,

Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>

Thanks,
Sai

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