From: Al Viro <viro@ftp.linux.org.uk>
Date: Sun, 11 Feb 2007 18:15:29 +0000 (+0000)
Subject: [PATCH] Switch s390 to NO_IOMEM
X-Git-Tag: v2.6.21-rc1~274^2~236
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23db764d3db5a4bb1e104ad9310e5dc18e4ffa1b;p=pandora-kernel.git

[PATCH] Switch s390 to NO_IOMEM

Martin Schwidefsky wrote:
  "s390 does not even need (in|out)b(_p|).  I wondered what else from
   io.h do we not need.  The answer is: almost nothing.  With the devres
   patch from Al and the dma-mapping patch from Heiko we can get rid of
   iomem and all associated definitions."

So we'll just need to replace NO_IOPORT with NO_IOMEM in Kconfig and
kill arch/s390/mm/ioremap.c.

BTW, there's an annoying bit of junk in there - IO_SPACE_LIMIT.  We
only need it for /proc/ioports, which AFAICS shouldn't even be there
on s390 (or uml).  OTOH, removing that thing would mean a user-visible
change - we go from "empty file in /proc" to "no such file in /proc"...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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