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authorRussell King <rmk+lkml@arm.linux.org.uk>2007-04-17 00:32:26 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-17 16:36:27 -0700
commit93da28790c17345f4db10358dfb19b4c241d8ba3 (patch)
tree47616f12e51de5c8f1ccb9f0f6fcb6b458fc0720 /include
parent30f3deeee81cf22546da1b0b89a937bb991dea23 (diff)
downloadlinux-93da28790c17345f4db10358dfb19b4c241d8ba3.tar.bz2
Provide dummy devm_ioport_* if !HAS_IOPORT
Provide an dummy implementation of devm_ioport_map() and devm_ioport_unmap() to allow drivers (eg, pata_platform) to build for platforms where CONFIG_NO_IOPORT is selected. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/io.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h
index c244a0cc9319..09d351236379 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -33,9 +33,22 @@ int ioremap_page_range(unsigned long addr, unsigned long end,
/*
* Managed iomap interface
*/
+#ifdef CONFIG_HAS_IOPORT
void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
unsigned int nr);
void devm_ioport_unmap(struct device *dev, void __iomem *addr);
+#else
+static inline void __iomem *devm_ioport_map(struct device *dev,
+ unsigned long port,
+ unsigned int nr)
+{
+ return NULL;
+}
+
+static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
+{
+}
+#endif
void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
unsigned long size);