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Subject: Re: [PATCH] selftests: use "$(MAKE)" instead of "make" for
 headers_install
To:     Denys Vlasenko <dvlasenk@redhat.com>, linux-kernel@vger.kernel.org
Cc:     Shuah Khan <shuah@kernel.org>, linux-kselftest@vger.kernel.org,
        Shuah Khan <skhan@linuxfoundation.org>
References: <20200817150946.21477-1-dvlasenk@redhat.com>
From:   Shuah Khan <skhan@linuxfoundation.org>
Message-ID: <8ea61655-c4b3-0fa9-ec70-b63adbbe5c84@linuxfoundation.org>
Date:   Mon, 31 Aug 2020 14:49:50 -0600
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On 8/17/20 9:09 AM, Denys Vlasenko wrote:
> If top make invocation uses -j4 or larger, this patch reduces
> "make headers_install" subtask run time from 30 to 7 seconds.
> 
> CC: Shuah Khan <shuah@kernel.org>
> CC: Shuah Khan <skhan@linuxfoundation.org>
> CC: linux-kselftest@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
> ---
>   tools/testing/selftests/lib.mk | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 7a17ea815736..51124b962d56 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -47,9 +47,9 @@ ARCH		?= $(SUBARCH)
>   khdr:
>   ifndef KSFT_KHDR_INSTALL_DONE
>   ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
> -	make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
> +	$(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
>   else
> -	make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
> +	$(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
>   		ARCH=$(ARCH) -C $(top_srcdir) headers_install
>   endif
>   endif
> 

Thanks for the patch. Applied to linux-kselftest next for 5.10

thanks,
-- Shuah