From owner-freebsd-net  Sat Nov  3 11:32:28 2001
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From: Jim McGrath <jmcgrath@sitaranetworks.com>
To: "'Luigi Rizzo'" <rizzo@aciri.org>,
	Jim McGrath <jmcgrath@sitaranetworks.com>
Cc: net@FreeBSD.ORG, mjacob@feral.com
Subject: RE: softc, ifnet and arpcom overlay
Date: Sat, 3 Nov 2001 14:32:18 -0500 
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It makes the assumption that the ifnet/arpcom structure is at the beginning
of the softc structure.  In needs to do this to maintain media independence.
Also see http://www.freebsd.org/cgi/query-pr.cgi?pr=29249

Jim

-----Original Message-----
From: 'Luigi Rizzo' [mailto:rizzo@aciri.org]
Sent: Saturday, November 03, 2001 2:06 PM
To: Jim McGrath
Cc: net@FreeBSD.ORG; mjacob@feral.com
Subject: Re: softc, ifnet and arpcom overlay


On Sat, Nov 03, 2001 at 01:17:24PM -0500, Jim McGrath wrote:
> Check mii.c, miibus_attach()

I don't see anything strange there, the access is through
device_get_softc(dev) which presumably does the right thing
and makes no assumption on structure layout.

	cheers
	luigi
----------------------------------+-----------------------------------------
 Luigi RIZZO, luigi@iet.unipi.it  . ACIRI/ICSI (on leave from Univ. di Pisa)
 http://www.iet.unipi.it/~luigi/  . 1947 Center St, Berkeley CA 94704
 Phone: (510) 666 2927
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