linux-kernel - Re: [PATCH] selftests: futex: set DEFAULT_INSTALL_HDR

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Date:   Mon, 7 Feb 2022 11:40:31 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Muhammad Usama Anjum <usama.anjum@...labora.com>,
        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@...labora.com>,
        Shuah Khan <shuah@...nel.org>
Cc:     kernel@...labora.com, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] selftests: futex: set DEFAULT_INSTALL_HDR_PATH

On 1/19/22 3:33 AM, Muhammad Usama Anjum wrote:
> If only futex selftest is compiled, uapi header files are copied to the
> selftests/futex/functional directory. This copy isn't needed. Set the
> DEFAULT_INSTALL_HDR_PATH variable to 1 to use the default header install
> path only. This removes extra copy of header file.
> 
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
> ---
>   tools/testing/selftests/futex/functional/Makefile | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
> index 5cc38de9d8ea..9a8c3700d773 100644
> --- a/tools/testing/selftests/futex/functional/Makefile
> +++ b/tools/testing/selftests/futex/functional/Makefile
> @@ -24,6 +24,7 @@ TEST_PROGS := run.sh
>   
>   top_srcdir = ../../../../..
>   KSFT_KHDR_INSTALL := 1
> +DEFAULT_INSTALL_HDR_PATH := 1
>   include ../../lib.mk
>   
>   $(TEST_GEN_FILES): $(HEADERS)
> 

This will be a good cleanup. However, please make there is no dependencies
in the futex test sub-dirs on being able to find the headers under futex

I vaguely remember leaving this in place for reason.

thanks,
-- Shuah