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Message-ID: <91f2e916-2f90-4970-9448-09f821597083@linuxfoundation.org>
Date: Tue, 26 Mar 2024 14:20:08 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Mark Brown <broonie@...nel.org>, Christian Brauner <brauner@...nel.org>,
 Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v3] kselftest/clone3: Make test names for set_tid test
 stable

On 3/26/24 13:17, Shuah Khan wrote:
> On 3/25/24 08:29, Mark Brown wrote:
>> The test results reported for the clone3_set_tid tests interact poorly with
>> automation for running kselftest since the reported test names include TIDs
>> dynamically allocated at runtime. A lot of automation for running kselftest
>> will compare runs by looking at the test name to identify if the same test
>> is being run so changing names make it look like the testsuite has been
>> updated to include new tests. This makes the results display less clearly
>> and breaks cases like bisection.
>>
>> Address this by providing a brief description of the tests and logging that
>> along with the stable parameters for the test currently logged. The TIDs
>> are already logged separately in existing logging except for the final test
>> which has a new log message added. We also tweak the formatting of the
>> logging of expected/actual values for clarity.
>>
>> There are still issues with the logging of skipped tests (many are simply
>> not logged at all when skipped and all are logged with different names) but
>> these are less disruptive since the skips are all based on not being run as
>> root, a condition likely to be stable for a given test system.
>>
>> Acked-by: Christian Brauner <brauner@...nel.org>
>> Signed-off-by: Mark Brown <broonie@...nel.org>
>> ---
>> Changes in v3:
>> - Rebase onto v6.9-rc1.
>> - This is the second release I've posted this for with no changes or
>>    review comments.
>> - Link to v2: https://lore.kernel.org/r/20240122-kselftest-clone3-set-tid-v2-1-72af5d7dbae8@kernel.org
>>
> 
> Thank you for patience. Applied now to linux-kselftest fixes for
> next rc.
> 

Mark,

I am seeing the following compile warnings. Please fix and send patch
on top pf linux-kselftest fixes.

clone3_set_tid.c: In function ‘test_clone3_set_tid’:
clone3_set_tid.c:136:43: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ {aka ‘long unsigned int’} [-Wformat=]
   136 |         ksft_test_result(ret == expected, "%s with %d TIDs and flags 0x%x\n",
       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   137 |                          desc, set_tid_size, flags);
       |                                ~~~~~~~~~~~~
       |                                |
       |                                size_t {aka long unsigned int}
./kselftest.h:210:39: note: in definition of macro ‘ksft_test_result’
   210 |                 ksft_test_result_pass(fmt, ##__VA_ARGS__);\
       |                                       ^~~
clone3_set_tid.c:136:53: note: format string is defined here
   136 |         ksft_test_result(ret == expected, "%s with %d TIDs and flags 0x%x\n",
       |                                                    ~^
       |                                                     |
       |                                                     int
       |                                                    %ld
clone3_set_tid.c:136:43: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ {aka ‘long unsigned int’} [-Wformat=]
   136 |         ksft_test_result(ret == expected, "%s with %d TIDs and flags 0x%x\n",
       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   137 |                          desc, set_tid_size, flags);
       |                                ~~~~~~~~~~~~
       |                                |
       |                                size_t {aka long unsigned int}
./kselftest.h:212:39: note: in definition of macro ‘ksft_test_result’
   212 |                 ksft_test_result_fail(fmt, ##__VA_ARGS__);\
       |                                       ^~~
clone3_set_tid.c:136:53: note: format string is defined here
   136 |         ksft_test_result(ret == expected, "%s with %d TIDs and flags 0x%x\n",
       |                                                    ~^
       |                                                     |
       |                                                     int
       |                                                    %ld

thanks,
-- Shuah



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