linux-kernel - Re: [PATCH v7 1/3] mm: add kstrdup

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Message-Id: <20140205135052.4066b67689cbf47c551d30a9@linux-foundation.org>
Date:	Wed, 5 Feb 2014 13:50:52 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Sebastian Capella <sebastian.capella@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-pm@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	patches@...aro.org, Michel Lespinasse <walken@...gle.com>,
	Shaohua Li <shli@...nel.org>,
	Jerome Marchand <jmarchan@...hat.com>,
	Mikulas Patocka <mpatocka@...hat.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Joe Perches <joe@...ches.com>,
	David Rientjes <rientjes@...gle.com>,
	Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: [PATCH v7 1/3] mm: add kstrdup_trimnl function

On Tue,  4 Feb 2014 12:43:49 -0800 Sebastian Capella <sebastian.capella@...aro.org> wrote:

> kstrdup_trimnl creates a duplicate of the passed in
> null-terminated string.  If a trailing newline is found, it
> is removed before duplicating.  This is useful for strings
> coming from sysfs that often include trailing whitespace due to
> user input.

hm, why?  I doubt if any caller of this wants to retain leading and/or
trailing spaces and/or tabs.

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