From owner-cvs-all@FreeBSD.ORG  Fri Jun 10 17:03:59 2005
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To: Brooks Davis <brooks@FreeBSD.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Fri, 10 Jun 2005 16:49:24 -0000."
	<200506101649.j5AGnOPu077043@repoman.freebsd.org> 
Date: Fri, 10 Jun 2005 19:03:55 +0200
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/share/man/man9 ifnet.9 src/sys/compat/ndis
	kern_ndis.c subr_ndis.c src/sys/contrib/altq/altq altq_rio.c
	src/sys/contrib/dev/oltr if_oltr.c if_oltr_pci.c if_oltrvar.h
	src/sys/contrib/pf/net if_pflog.c if_pflog.h if_pfsync.c ... 
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In message <200506101649.j5AGnOPu077043@repoman.freebsd.org>, Brooks Davis writ
es:

>  Log:
>  Stop embedding struct ifnet at the top of driver softcs. [...]
>  
>  This change removes the size of these structures from the kernel ABI and
>  will allow us to better manage them as interfaces come and go.
>  
>  Other changes of note:
>   - Struct arpcom is no longer referenced in normal interface code.
>     Instead the Ethernet address is accessed via the IFP2ENADDR() macro.

If this is a macro, don't you still encode, if not the size at least
part of the layout in the kernel ABI ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.