[PATCH] Provide dummy devm_ioport_* if !HAS_IOPORT

Russell King
2007-03-30T11:00:35Z

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>
---
include/linux/io.h | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/linux/io.h b/include/linux/io.h
index c244a0c..8cf8df6 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);

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/