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Re: [kbuild-all] Re: [PATCH] libertas: Fix two buffer overflows at parsing bss descriptor

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Rong Chen <rong.a.chen@xxxxxxxxx> writes:

> On 11/28/19 2:23 AM, Guenter Roeck wrote:
>> On Mon, Nov 25, 2019 at 10:29:52PM +0800, Philip Li wrote:
>>> On Mon, Nov 25, 2019 at 12:36:50PM +0000, Kalle Valo wrote:
>>>> kbuild test robot <lkp@xxxxxxxxx> writes:
>>>>
>>>>> Thank you for the patch! Perhaps something to improve:
>>>>>
>>>>> [auto build test WARNING on wireless-drivers-next/master]
>>>>> [also build test WARNING on v5.4-rc8 next-20191122]
>>>>> [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/huangwenabc-gmail-com/libertas-Fix-two-buffer-overflows-at-parsing-bss-descriptor/20191124-142236
>>>>> base:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master
>>>>> config: sh-allmodconfig (attached as .config)
>>>>> compiler: sh4-linux-gcc (GCC) 7.4.0
>>>>> reproduce:
>>>>>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>>>>          chmod +x ~/bin/make.cross
>>>>>          # save the attached .config to linux build tree
>>>>>          GCC_VERSION=7.4.0 make.cross ARCH=sh
>>>>>
>>>>> If you fix the issue, kindly add following tag
>>>>> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
>>>>>
>>>>> All warnings (new ones prefixed by >>):
>>>>>
>>>>>     drivers/net/wireless/marvell/libertas/cfg.c: In function 'lbs_ibss_join_existing':
>>>>>>> drivers/net/wireless/marvell/libertas/cfg.c:1788:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
>>>> I was wondering why I didn't see this mail in patchwork:
>>>>
>>>> https://patchwork.kernel.org/patch/11257187/
>>>>
>>>> And then I noticed this:
>>>>
>>>> X-Patchwork-Hint: ignore
>>>>
>>>> kbuild team, why are you adding that header? It's really bad for a
>>> thanks for the feedback, early on we received another feedback to suggest
>>> for adding this, refer to
>>> https://gitlab.freedesktop.org/patchwork-fdo/patchwork-fdo/issues/21
>>> for detail. Since there's no further input regarding this usage, we keep
>>> that flag. If this is not suitable, we can investigate other way to fullfill
>>> both requirements.
>>>
>> I second Kalle's comment; this is really bad.
>>
>> Note that the above referenced link suggested to add
>> 	X-Patchwork-Hint: comment
>> to e-mail headers. Instead, you added:
>> 	X-Patchwork-Hint: ignore
>> which is substantially different. Also, the problem was with a _patch_
>> sent by the robot, not with direct feedback. On top of that, the
>> suggestion was really to add "X-Patchwork-Hint: comment" to _patches_
>> sent by the robot, not to everything. It should be fine to add
>> "X-Patchwork-Hint: ignore" to patches only as long as other feedback
>> is still provided and added to patchwork. That should meet all
>> requirements.
>>
>> Thanks,
>> Guenter
>
> Hi Kalle, Guenter
>
> Thanks so much for your help, we have removed the hint header in build
> report mails and still keep it in patch mails.

This is now working perfectly, here's a recent example:

https://patchwork.kernel.org/patch/11431301/

I cannot stress enough how much seeing kbuild bot warning in patchwork
helps my work as a maintainer. So thank you Guenter for the support and
Rong fixing it!

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches



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