linux-kernel - Re: udev in kernel source?

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Message-Id: <200910252004.21546.Martin@lichtvoll.de>
Date:	Sun, 25 Oct 2009 20:04:15 +0100
From:	Martin Steigerwald <Martin@...htvoll.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: udev in kernel source?

Am Sonntag 25 Oktober 2009 schrieb Frans Pop:
> Martin Steigerwald wrote:
> > Would that qualify as a reason to put it there and have make-kpkg /
> > make deb / make rpm spit out a udev package as well?
> 
> How would that help?

That udev and kernel match each other. But you are right, rest of 
userspace that uses udev might not necessarily match.

And there is another issue: AFAIK distributors handle at least parts of 
the udev configuration including rules.

Well other solution would be to guarentee that SYSFS_DEPRECATED works 
correctly in udev until it will be deprecated and remove in kernel source. 
But then you suggest it the other way around:

> Sure, there will be cut-off points (one of which you seem to have hit
> here), but in general it's a lot easier to ensure a kernel is
>  compatible with your current version of udev than ensuring random
>  upstream versions of udev are compatible with your userland
>  (especially if you're running the stable version of a distro).

I am running a mixture of Debian testing/unstable/experimental.

martin@...mbhala:~> apt-show-versions | grep udev
libgudev-1.0-0/squeeze uptodate 146-5
libudev0/squeeze uptodate 146-5
udev/squeeze uptodate 146-5

martin@...mbhala:~> cat /proc/version
Linux version 2.6.31.5-tp42-toi-3.0.1-04850-g4eddd0d (martin@...mbhala) 
(gcc version 4.3.4 (Debian 4.3.4-5) ) #5 PREEMPT Sun Oct 25 18:39:35 CET 
2009

Anyway, I disabled CONFIG_SYSFS_DEPRECATED now.

Maybe its more about the discoverability of such issue: I don't look into 
the boot log / syslog every day. ;)

Hopefully upward incompatible changes in SysFS could be avoided in the 
future.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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