linux-kernel - Re: [PATCH v1 0/3] drivers/char: remove /dev/kmem for good

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Message-ID: <96217148-3104-410f-a765-72565ec46c9f@metux.net>
Date:   Wed, 31 Mar 2021 17:18:13 +0200
From:   "Enrico Weigelt, metux IT consult" <lkml@...ux.net>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Andrey Zhizhikin <andrey.zhizhikin@...ca-geosystems.com>,
        Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Brian Cain <bcain@...eaurora.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Chris Zankel <chris@...kel.net>,
        Corentin Labbe <clabbe@...libre.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
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        William Cohen <wcohen@...hat.com>,
        Xiaoming Ni <nixiaoming@...wei.com>,
        Yoshinori Sato <ysato@...rs.osdn.me>
Subject: Re: [PATCH v1 0/3] drivers/char: remove /dev/kmem for good

On 24.03.21 20:24, Andrew Morton wrote:

> We do tend to think about distros.  I bet there are a number of weird
> embedded type systems using /dev/kmem - it's amazing what sorts of
> hacks those people will put up with the get something out the door.

There certainly are (seen lots of such crap), another good reason for
kicking it out asap.

> But those systems tend to carry a lot of specialized changes anyway, so
> they can just add "revert David's patch" to their pile.

Often those kind of people aren't capable of that. If anyone finds such
systems, report them to cert, bsi, fd, ...


--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@...ux.net -- +49-151-27565287