linux-kernel - Re: [PATCH] x86_64: permit to configure ISA support also for x86

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Date:	Fri, 16 Sep 2011 15:33:32 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Wolfgang Grandegger 
	<public-wg-5Yr1BZd7O62+XT7JhA+gdA@...ne.gmane.org>
Cc:	public-x86-DgEjT+Ai2ygdnm+yROfE0A@...ne.gmane.org,
	SocketCAN Core Mailing List 
	<public-socketcan-core-0fE9KPoRgkgATYTw5x5z8w@...ne.gmane.org>,
	Willy Lambert 
	<public-lambert.willy-Re5JQEeQqe8AvxtiuMwx3w@...ne.gmane.org>,
	LKML <public-linux-kernel-u79uwXL29TY76Z2rM5mHXA@...ne.gmane.org>
Subject: Re: [PATCH] x86_64: permit to configure ISA support also for x86_64 systems



Wolfgang Grandegger <wg-5Yr1BZd7O62+XT7JhA+gdA@...lic.gmane.org> writes:

> There are 64-bit systems out there, like the ATOM N450, which
> have ISA slots. This patch is necessary to get the "sja1000_isa"
> Socket-CAN driver working on such systems.

Really bad idea.

You'll get a zillion non 64bit safe unmaintained old ISA 
drivers then, a non trivial percentage of them will likely 
explode when just loaded. 

Not to speak of the warning load at allyesconfig builds.

Maybe define a ISA_64 or so.

But it's really a bad idea.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only

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