linux-kernel - Re: [PATCH v3 6/7] misc: bcm-vk: add Broadcom VK driver

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Message-ID: <d9e6d8a0-9e99-e822-8907-e1478c3a7f47@broadcom.com>
Date:   Wed, 22 Apr 2020 15:01:45 -0700
From:   Scott Branden <scott.branden@...adcom.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        kbuild test robot <lkp@...el.com>
Cc:     Luis Chamberlain <mcgrof@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Brown <david.brown@...aro.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Shuah Khan <skhan@...uxfoundation.org>,
        bjorn.andersson@...aro.org, Arnd Bergmann <arnd@...db.de>,
        kbuild-all@...ts.01.org, "Rafael J . Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
        Olof Johansson <olof@...om.net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH v3 6/7] misc: bcm-vk: add Broadcom VK driver



On 2020-04-22 9:13 a.m., Scott Branden wrote:
>
>
> On 2020-04-22 4:35 a.m., Dan Carpenter wrote:
>> On Wed, Apr 22, 2020 at 07:17:34PM +0800, kbuild test robot wrote:
>>> Hi Scott,
>>>
>>> I love your patch! Perhaps something to improve:
>>>
>>> [auto build test WARNING on driver-core/driver-core-testing]
>>> [also build test WARNING on next-20200421]
>>> [cannot apply to char-misc/char-misc-testing kselftest/next 
>>> linus/master v5.7-rc2]
>>> [if your patch is applied to the wrong git tree, please drop us a 
>>> note to help
>>> improve the system. BTW, we also suggest to use '--base' option to 
>>> specify the
>>> base tree in git format-patch, please see 
>>> https://stackoverflow.com/a/37406982]
>>>
>>> url: 
>>> https://github.com/0day-ci/linux/commits/Scott-Branden/firmware-add-partial-read-support-in-request_firmware_into_buf/20200422-114528
>>> base: 
>>> https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 
>>> 55623260bb33e2ab849af76edf2253bc04cb241f
>>> reproduce:
>>>          # apt-get install sparse
>>>          # sparse version: v0.6.1-191-gc51a0382-dirty
>>>          make ARCH=x86_64 allmodconfig
>>>          make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
>>                                             ^^^^^^^^^^^^^^^^^^^
>>
>> Sorry, you asked me about this earlier.  You will need to add
>> -D__CHECK_ENDIAN__ to enable these Sparse warnings.
> This is strange.  I ran the sparse build and thought I had fixed all 
> the issues.
> I'll have to try again.
>
> One other question with the sparse build.  I get many of the messages 
> printed but the build seems to go to the end (even without my patches 
> applied):
> ./arch/x86/include/asm/paravirt.h:333:9: error: got __inline
> ./arch/x86/include/asm/paravirt.h:338:9: error: Expected ( after asm
> ./arch/x86/include/asm/paravirt.h:338:9: error: got __inline
> ./arch/x86/include/asm/paravirt.h:343:9: error: Expected ( after asm
> ./arch/x86/include/asm/paravirt.h:343:9: error: got __inline
> ./arch/x86/include/asm/paravirt.h:348:9: error: Expected ( after asm
> ./arch/x86/include/asm/paravirt.h:348:9: error: too many errors
>
> Any way to suppress or I am doing something wrong?  I just run the 2 
> make commands:
>
>         make ARCH=x86_64 allmodconfig
>         make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
I figured out the sparse utility on ubuntu 18.04 is out of date causing 
the issue.
>
>> regards,
>> dan carpenter
>>
>