netdev - Re: [2.6 patch] drivers/net/loopback.c: convert to module

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Date:	Wed, 13 Dec 2006 15:41:25 -0800
From:	Stephen Hemminger <shemminger@...l.org>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	Thomas Graf <tgraf@...g.ch>, Al Viro <viro@....linux.org.uk>,
	David Miller <davem@...emloft.net>, jgarzik@...ox.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] drivers/net/loopback.c: convert to module_init()

On Thu, 14 Dec 2006 00:31:28 +0100
Adrian Bunk <bunk@...sta.de> wrote:

> On Thu, Dec 14, 2006 at 12:18:48AM +0100, Thomas Graf wrote:
> > * Adrian Bunk <bunk@...sta.de> 2006-12-14 00:12
> > > On Wed, Dec 13, 2006 at 03:01:43PM -0800, Stephen Hemminger wrote:
> > > > Loopback should be there before protocols are started. It makes sense
> > > > to have a standard startup order.
> > > 
> > > This actually becomes easier after my patch:
> > > 
> > > Now that it's untangled from net_olddevs_init(), you can simply change 
> > > the module_init(loopback_init) to a different initcall level.
> > 
> > Not really, the device management inits as subsys, the ip layer hooks
> > into fs_initcall() which comes right after. The loopback was actually
> > registered after the protocol so far. I think Adrian's patch is fine
> > if the module_init() is changed to device_initcall().
> 
> It doesn't matter (and I don't care) since for the non-modular case 
> (that always applies for loopback), there's:
>   #define __initcall(fn) device_initcall(fn)
>   #define module_init(x)  __initcall(x);
> 
> cu
> Adrian
> 

But what if other network device is not a module. We want loopback
to be first. so it needs to be before other device_initcall's
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