Re: [PATCH] Fix readw/writew warnings in drivers/net/wireless/hermes.h

From: David Gibson
Date: Mon Oct 11 2004 - 07:38:09 EST


On Mon, Oct 11, 2004 at 05:34:20PM +0530, Ricky lloyd wrote:
> > Isn't the correct fix to declare iobase as (void __iomem *) ?
> >
>
> Earlier today i had posted a patch which mainly fixes this same
> problem with lotsa scsi
> drivers and tulip drivers. I wondered the same "shouldnt all the addrs
> be declared as
> void __iomem* ??".

The trouble with that is that for some versions of the orinoco card,
the iobase refers to a legacy ISA IO address, not a memory-mapped IO
address (that's the inw()/outw() path in the macro). That needs an
integer, rather than a pointer.

It's not clear to me which way around the cast is less ugly.

--
David Gibson | For every complex problem there is a
david AT gibson.dropbear.id.au | solution which is simple, neat and
| wrong.
http://www.ozlabs.org/people/dgibson
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