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

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Date:   Tue, 3 Oct 2023 10:46:40 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Muhammad Usama Anjum <usama.anjum@...labora.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        André Almeida <andrealmeid@...lia.com>,
        Shuah Khan <shuah@...nel.org>, kernel@...labora.com,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 6/6] selftests: futex: remove duplicate unneeded defines


* Muhammad Usama Anjum <usama.anjum@...labora.com> 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@...labora.com>
> ---
>  .../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?

Thanks,

	Ingo