linux-kernel - Re: [PATCH v2 1/2] libfs: Introduce tokenize_user

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Message-ID: <Yw5X379ct1PK6wZO@casper.infradead.org>
Date:   Tue, 30 Aug 2022 19:33:03 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Cezary Rojewski <cezary.rojewski@...el.com>
Cc:     alsa-devel@...a-project.org, broonie@...nel.org, tiwai@...e.com,
        perex@...ex.cz, amadeuszx.slawinski@...ux.intel.com,
        pierre-louis.bossart@...ux.intel.com, hdegoede@...hat.com,
        lgirdwood@...il.com, kai.vehmanen@...ux.intel.com,
        peter.ujfalusi@...ux.intel.com, ranjani.sridharan@...ux.intel.com,
        yung-chuan.liao@...ux.intel.com, viro@...iv.linux.org.uk,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        andy.shevchenko@...il.com
Subject: Re: [PATCH v2 1/2] libfs: Introduce tokenize_user_input()

On Thu, Aug 25, 2022 at 06:48:32PM +0200, Cezary Rojewski wrote:
> Add new helper function to allow for splitting specified user string
> into a sequence of integers. Internally it makes use of get_options() so
> the returned sequence contains the integers extracted plus an additional
> element that begins the sequence and specifies the integers count.
> 
> Suggested-by: Andy Shevchenko <andy.shevchenko@...il.com>
> Signed-off-by: Cezary Rojewski <cezary.rojewski@...el.com>
> ---
>  fs/libfs.c         | 45 +++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/fs.h |  1 +

This really has nothing to do with filesystems.  Surely
string_helpers.[ch] is the appropriate place for this code?
Also get_options() should probably move its prototype from kernel.h to
string_helpers.h.