linux-kernel - Re: [PATCH v2] docs/kselftest: add more guidelines for adding new tests

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Message-ID: <63fc263d-c06a-2974-298c-5da80322411a@linuxfoundation.org>
Date:   Tue, 7 Jun 2022 15:41:48 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Muhammad Usama Anjum <usama.anjum@...labora.com>,
        Shuah Khan <shuah@...nel.org>, Jonathan Corbet <corbet@....net>
Cc:     kernel@...labora.com, bagasdotme@...il.com,
        linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2] docs/kselftest: add more guidelines for adding new
 tests

On 6/7/22 6:59 AM, Muhammad Usama Anjum wrote:
> Reminder!
> 

Remember to avoid top posting.

> On 5/21/22 12:36 PM, Muhammad Usama Anjum wrote:
>> Improve and add instructions to add new tests. Add build commands to
>> test before sending the new test patch.
>>
>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
>> ---
>> Changes in v2:
>> - Updated commit message
>> - Removed dependence of this patch from other patch
>> - Updated instructions
>> ---
>>   Documentation/dev-tools/kselftest.rst | 27 ++++++++++++++++++++++++++-
>>   1 file changed, 26 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
>> index a833ecf12fbc1..ee6467ca8293f 100644
>> --- a/Documentation/dev-tools/kselftest.rst
>> +++ b/Documentation/dev-tools/kselftest.rst
>> @@ -208,6 +208,14 @@ In general, the rules for selftests are
>>   Contributing new tests (details)
>>   ================================
>>   
>> + * In your Makefile, use facilities from lib.mk by including it instead of
>> +   reinventing the wheel. Specify flags and binaries generation flags on
>> +   need basis before including lib.mk. ::
>> +
>> +    CFLAGS = $(KHDR_INCLUDES)
>> +    TEST_GEN_PROGS := close_range_test
>> +    include ../lib.mk
>> +
>>    * Use TEST_GEN_XXX if such binaries or files are generated during
>>      compiling.
>>   
>> @@ -230,13 +238,30 @@ Contributing new tests (details)
>>    * First use the headers inside the kernel source and/or git repo, and then the
>>      system headers.  Headers for the kernel release as opposed to headers
>>      installed by the distro on the system should be the primary focus to be able
>> -   to find regressions.
>> +   to find regressions. Use KHDR_INCLUDES in Makefile to include headers from
>> +   the kernel source.
>>   
>>    * If a test needs specific kernel config options enabled, add a config file in
>>      the test directory to enable them.
>>   
>>      e.g: tools/testing/selftests/android/config
>>   
>> + * Create a .gitignore file inside test directory and add all generated objects
>> +   in it.
>> +
>> + * Add new test name in TARGETS in selftests/Makefile::
>> +
>> +    TARGETS += android
>> +
>> + * All changes should pass::
>> +
>> +    kselftest-{all,install,clean,gen_tar}
>> +    kselftest-{all,install,clean,gen_tar} O=abo_path
>> +    kselftest-{all,install,clean,gen_tar} O=rel_path
>> +    make -C tools/testing/selftests {all,install,clean,gen_tar}
>> +    make -C tools/testing/selftests {all,install,clean,gen_tar} O=abs_path
>> +    make -C tools/testing/selftests {all,install,clean,gen_tar} O=rel_path
>> +
>>   Test Module
>>   ===========
>>   
> 

The change looks good to me. I am catching up on patch backlog after the
merge window and vacation. I can take this through kselftest or if it
goes through doc tree - here is my

Reviewed-by: Shuah Khan <skhan@...uxfoundation.org>

thanks,
-- Shuah