linux-kernel - Re: [PATCH] kselftests: Enable the echo command to print newlines in Makefile

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Date:   Mon, 27 Jun 2022 11:03:52 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Gautam <gautammenghani201@...il.com>, shuah@...nel.org,
        brauner@...nel.org, keescook@...omium.org
Cc:     kafai@...com, songliubraving@...com,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] kselftests: Enable the echo command to print newlines in
 Makefile

On 6/25/22 7:54 AM, Gautam wrote:
> In the install section of the main Makefile of kselftests, the echo
> command is used with -n flag, which disables the printing of new line
> due to which the output contains "\n" chars as follows:
> 
>    Emit Tests for alsa\nSkipping non-existent dir: arm64
>    Emit Tests for breakpoints\nEmit Tests for capabilities\n
> 
> This patch fixes the above bug by using the -e flag.
> 
> Signed-off-by: Gautam <gautammenghani201@...il.com>
> ---
>   tools/testing/selftests/Makefile | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index de11992dc577..52e31437f1a3 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -253,7 +253,7 @@ ifdef INSTALL_PATH
>   	for TARGET in $(TARGETS); do \
>   		BUILD_TARGET=$$BUILD/$$TARGET;	\
>   		[ ! -d $(INSTALL_PATH)/$$TARGET ] && echo "Skipping non-existent dir: $$TARGET" && continue; \
> -		echo -n "Emit Tests for $$TARGET\n"; \
> +		echo -ne "Emit Tests for $$TARGET\n"; \
>   		$(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET COLLECTION=$$TARGET \
>   			-C $$TARGET emit_tests >> $(TEST_LIST); \
>   	done;
> 

Thank you. Will be applied to kselftest next for Linux 5.20-rc1

thanks,
-- Shuah