Re: [PATCH 6/6] selftests: futex: remove duplicate unneeded defines

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On 10/6/23 1:25 AM, Ingo Molnar wrote:
> 
> * Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> wrote:
> 
>> On 10/3/23 1:46 PM, Ingo Molnar wrote:
>>>
>>> * Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> wrote:
>>>
>>>> Kselftests are kernel tests and must be build with kernel headers from
>>>> same source version. These duplicate defines should automatically
>>>> picked up from kernel headers. Use KHDR_INCLUDES to add kernel header
>>>> files.
>>>>
>>>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
>>>> ---
>>>>  .../selftests/futex/include/futextest.h       | 22 -------------------
>>>>  1 file changed, 22 deletions(-)
>>>>
>>>> diff --git a/tools/testing/selftests/futex/include/futextest.h b/tools/testing/selftests/futex/include/futextest.h
>>>> index ddbcfc9b7bac4..59f66af3a6d10 100644
>>>> --- a/tools/testing/selftests/futex/include/futextest.h
>>>> +++ b/tools/testing/selftests/futex/include/futextest.h
>>>> @@ -25,28 +25,6 @@
>>>>  typedef volatile u_int32_t futex_t;
>>>>  #define FUTEX_INITIALIZER 0
>>>>  
>>>> -/* Define the newer op codes if the system header file is not up to date. */
>>>> -#ifndef FUTEX_WAIT_BITSET
>>>> -#define FUTEX_WAIT_BITSET		9
>>>> -#endif
>>>> -#ifndef FUTEX_WAKE_BITSET
>>>> -#define FUTEX_WAKE_BITSET		10
>>>> -#endif
>>>> -#ifndef FUTEX_WAIT_REQUEUE_PI
>>>> -#define FUTEX_WAIT_REQUEUE_PI		11
>>>> -#endif
>>>> -#ifndef FUTEX_CMP_REQUEUE_PI
>>>> -#define FUTEX_CMP_REQUEUE_PI		12
>>>> -#endif
>>>> -#ifndef FUTEX_WAIT_REQUEUE_PI_PRIVATE
>>>> -#define FUTEX_WAIT_REQUEUE_PI_PRIVATE	(FUTEX_WAIT_REQUEUE_PI | \
>>>> -					 FUTEX_PRIVATE_FLAG)
>>>> -#endif
>>>> -#ifndef FUTEX_REQUEUE_PI_PRIVATE
>>>> -#define FUTEX_CMP_REQUEUE_PI_PRIVATE	(FUTEX_CMP_REQUEUE_PI | \
>>>> -					 FUTEX_PRIVATE_FLAG)
>>>> -#endif
>>>
>>> AFAICT I cannot really pick this up into the locking tree as-is, as this patch
>>> relies on the KHDR_INCLUDES change in patch #1, so that all self-tests get the
>>> kernel headers included, correct?
>> No this patch is self contained and doesn't depend on the patch #1.
>> KHDR_INCLUDES was included several releases back in kselftest's Makefile
>> and in kselftests of futex. Correct headers are being included already. In
>> this patch, I'm removing just the un-needed dead code. Other patches were
>> already picked up by other maintainers.
> 
> So the changelog does not match that characterization, it talks about 
> KHDR_INCLUDES in the present tense, and patch #1 adds the KHDR_INCLUDES, 
> which further suggested a dependency to me:
Sorry, so the working of the change-log isn't clear enough. I'll send the
patch separately and with better wording.

> 
>>>> Kselftests are kernel tests and must be build with kernel headers from
>>>> same source version. These duplicate defines should automatically
>>>> picked up from kernel headers. Use KHDR_INCLUDES to add kernel header
>                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> files.
>      ^^^^^^
> 
> Could you please re-send it with the changelog updated that makes it clear 
> that this patch works fine standalone against current mainline kernels?
> 
> Thanks,
> 
> 	Ingo

-- 
BR,
Muhammad Usama Anjum



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