linux-kernel - Re: [PATCH] pcmcia: ppc64 needs 64-bit ioaddr

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Date:	Mon, 14 May 2007 17:57:31 -0500
From:	olof@...om.net (Olof Johansson)
To:	Christoph Hellwig <hch@....de>
Cc:	paulus@...ba.org, linuxppc-dev@...abs.org,
	linux-pcmcia@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Dominik Brodowski <linux@...do.de>
Subject: Re: [PATCH] pcmcia: ppc64 needs 64-bit ioaddr_t

On Sun, May 13, 2007 at 11:46:08PM +0200, Christoph Hellwig wrote:
> On Sat, May 12, 2007 at 09:31:05AM -0500, Olof Johansson wrote:
> > ppc64 really needs ioaddr_t to be 64-bit, since I/O addresses really
> > are MMIO addresses, and remapped to a high range.
> > 
> > While the type is exported to userspace, there hasn't been any platforms
> > with PCMCIA on 64-bit powerpc until now, so changing it won't regress
> > any existing users.
> 
> In fact the only use of the type should be in the obsolete ioctl-based user
> interface.  So instead of changing the size of the type you should
> 
>  a) make sure you're not using cardmgr
>  b) fix up those places that still use ioaddr_t where they shouldn't
>     and switch the to kio_addr_t (why not just unsigned long like all
>     other busses?) 

I just noticed that feature-removal-schedule.txt says November 2005 for
the removal of the pcmcia ioctl's, but they're still there. I'm missing
the history here, any reason they weren't removed yet?


-Olof
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