linux-kernel - Re: [PATCH 1/3] selftests/bpf: align kbuild messages to standard

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Message-ID: <bc5beea9-0613-640b-b0dd-e54221c2fc06@meta.com>
Date:   Tue, 17 Jan 2023 21:02:20 -0800
From:   Yonghong Song <yhs@...a.com>
To:     Thomas Weißschuh <linux@...ssschuh.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 1/3] selftests/bpf: align kbuild messages to standard



On 1/17/23 7:52 PM, Thomas Weißschuh wrote:
> The common layout for kbuild messages is as follows:
> 
> - 2 spaces
> - 7 or more characters for the action
> - 1 space
> - name of the file being built/generated
> 
> The custom message formatting included an additional space in the action
> part, which leads to misalignments with the rest of kbuild.

Could you give an example to show the output before/after the patch, and
how it leads to mis-alignment and why it is a problem?

> 
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> ---
>   tools/testing/selftests/bpf/Makefile | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index c22c43bbee19..5190c19295d4 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -98,7 +98,7 @@ Q =
>   msg =
>   else
>   Q = @
> -msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
> +msg = @printf '  %-7s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
>   MAKEFLAGS += --no-print-directory
>   submake_extras := feature_display=0
>   endif
>