linux-kernel - Re: [PATCH v3 0/2] Create specific kconfig for kselftest

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Date:	Thu, 24 Dec 2015 18:17:32 +0800
From:	Bamvor Zhang Jian <bamvor.zhangjian@...aro.org>
To:	Michael Ellerman <mpe@...erman.id.au>,
	linux-api <linux-api@...r.kernel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>, linux-kbuild@...r.kernel.org,
	Shuah Khan <shuahkh@....samsung.com>, yann.morin.1998@...e.fr,
	Kevin Hilman <khilman@...aro.org>,
	Tyler Baker <tyler.baker@...aro.org>,
	Mark Brown <broonie@...nel.org>, dvhart@...radead.org,
	Bamvor Zhang Jian <bamvor.zhangjian@...aro.org>
Subject: Re: [PATCH v3 0/2] Create specific kconfig for kselftest

Hi, Michael

On 12/18/2015 07:44 AM, Michael Ellerman wrote:
> On Thu, 2015-12-17 at 17:57 +0800, Bamvor Jian Zhang wrote:
>
>> There is a discussion about improving the usability of kselftest by
>> creating test-specific kconfig in recent kernel Summit.
>>
>> Patch 1 keep test-specific kconfig fragments inside each selftest so
>> that merge_configs.sh could build up a kernel that can test the
>> specific or all feature(s).
>>
>> Patch 2 add config option(kselftest-mergeconfig) in make file as a
>> helper to merge all the test config dependecies to .config.
>>
>> Changes since v2:
>> 1.  Fix the misuse of objtree and srctree in the
>>     kselftest-mergeconfig target.
>>
>> Changes since v1:
>> 1.  Add kselftest-mergeconfig in scripts/kconfig/Makefile according
>>     to the suggestion from Michael.
>
> Sorry I only just noticed you put it in scripts/kconfig/Makefile. I meant for
> it to go in Makefile, alongside the other kselftest targets.

Do you mean "tools/testing/selftest/Makefile"? I try to do it but I could not
get the objtree and srctree if it is called directly(objtree and srctree is
defined in toplevel Makefile)
> make -C tools/testing/selftests kselftest-mergeconfig
make: Entering directory
'/home/bamvor/works/source/kernel/linux/tools/testing/selftests'
Makefile:112: *** No .config exists, config your kernel first!.  Stop.
make: Leaving directory
'/home/bamvor/works/source/kernel/linux/tools/testing/selftests'

Suggestions?

Regards

Bamvor

> cheers
>
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