From 5ca24814247fa4c039b893bf80fc05d0e5d41b00 Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Thu, 19 Jul 2007 17:48:44 -0700
Subject: PCI: Document pci_iomap()

This useful interface is hardly mentioned anywhere in the in-tree
documentation.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: Tejun Heo <htejun@gmail.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 include/asm-i386/io.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/asm-i386/io.h b/include/asm-i386/io.h
index 7b65b5b00034..e8e0bd641120 100644
--- a/include/asm-i386/io.h
+++ b/include/asm-i386/io.h
@@ -112,6 +112,9 @@ extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsign
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
  * address. 
+ *
+ * If the area you are trying to map is a PCI BAR you should have a
+ * look at pci_iomap().
  */
 
 static inline void __iomem * ioremap(unsigned long offset, unsigned long size)
-- 
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