linux-kernel - Re: [PATCH 2/2] selftests/filesystems: remove Makefile warning

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Date:   Thu, 19 Apr 2018 10:56:13 +0200
From:   Anders Roxell <anders.roxell@...aro.org>
To:     Shuah Khan <shuah@...nel.org>
Cc:     Christian Brauner <christian.brauner@...ntu.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-kselftest@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [PATCH 2/2] selftests/filesystems: remove Makefile warning

On 19 April 2018 at 10:22, Anders Roxell <anders.roxell@...aro.org> wrote:
> On 18 April 2018 at 16:54, Shuah Khan <shuah@...nel.org> wrote:
>> On 04/18/2018 01:52 AM, Anders Roxell wrote:
>>> When overriding the 'clean' target make throws up warnings:
>>> Makefile:9: warning: overriding recipe for target 'clean'
>>> ../lib.mk:98: warning: ignoring old recipe for target 'clean'
>>>
>>> In current code we change from TEST_PROGS to TEST_GEN_PROGS and that
>>> does that we can remove the target 'clean' and 'all'.
>>>
>>> Fixes: 10924bc64487 ("selftests: move dnotify_test from Documentation/filesystems")
>>> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
>>> ---
>>>  tools/testing/selftests/filesystems/Makefile | 6 +-----
>>>  1 file changed, 1 insertion(+), 5 deletions(-)
>>>
>>> diff --git a/tools/testing/selftests/filesystems/Makefile b/tools/testing/selftests/filesystems/Makefile
>>> index 427a401aae5c..a55ac3ac09ad 100644
>>> --- a/tools/testing/selftests/filesystems/Makefile
>>> +++ b/tools/testing/selftests/filesystems/Makefile
>>> @@ -1,9 +1,5 @@
>>>  # SPDX-License-Identifier: GPL-2.0
>>> -TEST_PROGS := dnotify_test devpts_pts
>>> +TEST_GEN_PROGS := dnotify_test devpts_pts
>>>  CFLAGS += -I../../../../usr/include/
>>> -all: $(TEST_PROGS)
>>>
>>>  include ../lib.mk
>>> -
>>> -clean:
>>> -     rm -fr $(TEST_PROGS)
>>>
>>
>> Hi Anders,
>>
>> Michael sent in a patch to fix the problem already. It is in linux-kselftest fixes
>> branch for 4.17-rc2
>>
>> Classifying dnotify_test to TEST_GEN_PROGS_EXTENDED as Michael is the correct way
>> to handle this problem. It allows the test to be built and installed and it won't
>> be run in the main kselftest run.
>
> Why don't we want to run them in the main kselftest run?
> Is the rationale documented somewhere/somehow?

Think I found the rationale documented in the changelog [1].

What do you think about adding a variable to this test saying run for
xx minutes and if it hasn't
crashed, consider it as a passed test ?

Cheers,
Anders
[1] https://patchwork.kernel.org/patch/10332365/

> If they are long running tests or intrusive tests, can we document
> with a printout like:
> === Test ${foo} - SKIPPED (${short_rationale}) ===
> === Test dnotify_test - SKIPPED (long run) ===
> === Test devpts_pts - SKIPPED (intrusive run) ===
>
> Should there be a variable to turn them on from the main kselftest run?
>
> Cheers,
> Anders
>
>>
>> thanks,
>> -- Shuah