From: Jeff Garzik <jgarzik@pobox.com>
To: "David S. Miller" <davem@redhat.com>
Cc: alan@lxorguk.ukuu.org.uk, haveblue@us.ibm.com, akpm@digeo.com,
rmk@arm.linux.org.uk, rddunlap@osdl.org,
linux-kernel@vger.kernel.org
Subject: Re: The magical mystical changing ethernet interface order
Date: Thu, 08 May 2003 12:26:53 -0400 [thread overview]
Message-ID: <3EBA854D.1030101@pobox.com> (raw)
In-Reply-To: <20030508.075438.52189319.davem@redhat.com>
David S. Miller wrote:
> From: Alan Cox <alan@lxorguk.ukuu.org.uk>
> Date: 08 May 2003 15:55:31 +0100
>
> Unfortunately for the ISA driver code we *have* to rely on link
> order or rip out the __init stuff and use Space.c type hacks.
>
> I do no argue that needing an invocation order is bogus.
> I merely disagree with the way we're trying to achieve it.
>
> You don't need Space.c magic, the linker in binutils has mechanisms by
> which this can be accomplished and we already use this in 2.5.x
>
> Have a peek at __define_initcall($NUM,fn), imagine it with one more
> argument $PRIO. It might look like this:
>
> #define __define_initcall(level,prio,fn) \
> static initcall_t __initcall_##fn __attribute__
> ((unused,__section__ ("\.initcall" level "." prio ".init"))) = fn
>
> Use the 'prio' number to define the ordering. The default for
> modules that don't care about relative ordering within a class
> use a value like "9999" or something like that.
Linus has traditionally resisted this, and pushed for the
link-order-defines-init-order bit.
However, that was years ago. Patrick Mochel added the current
seven-levels-of-initcall, which is where the referenced
__define_initcall originated.
I agree with you, and would prefer to move away from any dependence on
link order...
Jeff
next prev parent reply other threads:[~2003-05-08 16:14 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-07 13:14 The magical mystical changing ethernet interface order Russell King
2003-05-07 15:18 ` Dick Streefland
2003-05-07 15:38 ` Jeff Garzik
2003-05-07 15:24 ` Randy.Dunlap
2003-05-07 17:14 ` Russell King
2003-05-07 22:04 ` Andrew Morton
2003-05-07 22:28 ` Dave Hansen
2003-05-08 12:05 ` David S. Miller
2003-05-08 14:55 ` Alan Cox
2003-05-08 14:54 ` David S. Miller
2003-05-08 16:24 ` Arnaldo Carvalho de Melo
2003-05-08 16:26 ` Jeff Garzik [this message]
2003-05-08 16:30 ` Randy.Dunlap
2003-05-11 18:41 ` Jeff Garzik
2003-05-08 17:56 ` Kai Germaschewski
2003-05-08 17:36 ` Linus Torvalds
2003-05-09 6:51 ` Richard Henderson
2003-05-08 19:32 Jean Tourrilhes
2003-05-08 21:43 ` Eli Carter
2003-05-08 22:19 ` Jean Tourrilhes
2003-05-08 21:46 ` Alan Cox
2003-05-08 23:23 ` Randy.Dunlap
2003-05-08 23:38 Ray Lee
2003-05-09 12:41 ` Dick Streefland
2003-05-09 14:33 ` Mr. James W. Laferriere
2003-05-10 7:42 Thomas Hood
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