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Date:   Fri, 9 Apr 2021 08:59:31 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Gioh Kim <gi-oh.kim@ionos.com>, linux-kernel@vger.kernel.org,
        ndesaulniers@google.com, dan.j.williams@intel.com,
        laniel_francis@privacyrequired.com, keescook@chromium.org,
        dja@axtens.net, haris.iqbal@ionos.com, jinpu.wang@ionos.com
Subject: Re: [PATCH v4] lib/string: Introduce sysfs_streqcase
Message-ID: <YG/7U4RtfnLO9i4Y@kroah.com>
References: <20210408130605.541796-1-gi-oh.kim@ionos.com>
 <20210408220502.8126bc2f278b5199707ec122@linux-foundation.org>
 <YG/315XLSIZG2bCU@kroah.com>
 <20210408235132.e62ace3277fd46f123f5ff1b@linux-foundation.org>
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On Thu, Apr 08, 2021 at 11:51:32PM -0700, Andrew Morton wrote:
> On Fri, 9 Apr 2021 08:44:39 +0200 Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> 
> > On Thu, Apr 08, 2021 at 10:05:02PM -0700, Andrew Morton wrote:
> > > On Thu,  8 Apr 2021 15:06:05 +0200 Gioh Kim <gi-oh.kim@ionos.com> wrote:
> > > 
> > > > As the name shows, it checks if strings are equal in case insensitive
> > > > manner.
> > > 
> > > Peh.  Who would die if we simply made sysfs_streq() case-insensitive?
> > 
> > I doubt anyone, let's do that instead.
> 
> There's a risk that people will write scripts/config/etc on a 5.13+
> kernel and then find that they malfunction on earlier kernels...
> 

That's not a regression, that is a "newer kernels have newer features"
issue :)