[patch] linux/io.h: forward declare struct pci_dev

[Heiko Carstens <heiko.carstens@de.ibm.com>]

From: Heiko Carstens <heiko.carstens@de.ibm.com>

9ac7849e35f705830f7b016ff272b0ff1f7ff759 causes this:

  CC      arch/s390/mm/ioremap.o
In file included from arch/s390/mm/ioremap.c:18:
include/linux/io.h:46:
	warning: "struct pci_dev" declared inside parameter list
include/linux/io.h:46:
	warning: its scope is only this definition or declaration,
		 which is probably not what you want

Guess it's time to get rid of ioremap.c on s390 if possible...

Cc: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
 include/linux/io.h |    1 +
 1 files changed, 1 insertion(+)

Index: linux-2.6/include/linux/io.h
===================================================================
--- linux-2.6.orig/include/linux/io.h
+++ linux-2.6/include/linux/io.h
@@ -22,6 +22,7 @@
 #include <asm/io.h>
 #include <asm/page.h>
 
+struct pci_dev;
 struct device;
 
 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
-
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