linux-kernel - Re: [PATCH v2] kbuild: check uniqueness of module names

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Date:   Fri, 17 May 2019 10:57:14 +0200
From:   Bernd Petrovitsch <bernd@...rovitsch.priv.at>
To:     Alexander Kapshuk <alexander.kapshuk@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-kbuild@...r.kernel.org, Sam Ravnborg <sam@...nborg.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Jessica Yu <jeyu@...nel.org>,
        Lucas De Marchi <lucas.de.marchi@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Michael Schmitz <schmitzmic@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Kees Cook <keescook@...omium.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] kbuild: check uniqueness of module names

On 17/05/2019 10:16, Alexander Kapshuk wrote:
[...]
> The 'xargs' '-r' flag is a GNU extension.
> If POSIX compliance is important here, the use of 'cat', 'xargs' and
> 'basename' may be substituted with that of 'sed' to initialise
> same_name_modules:
> sed 's!.*/!!' modules.order modules.builtin | sort | uniq -d

's!' is TTBOMK also a GNU-extension:
sed 's/.*\///' modules.order modules.builtin | sort | uniq -d

> 'Sed' may also be used on its own in the 'for' loop instead of as part
> of a pipeline along with 'grep' to generate the desired output:
> sed '/\/'$m'/!d;s:^kernel/:  :' modules.order modules.builtin

sed "/\/${m}/!d;s/^kernel\//  /" modules.order modules.builtin

MfG,
	Bernd
-- 
Bernd Petrovitsch                  Email : bernd@...rovitsch.priv.at
                     LUGA : http://www.luga.at