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authorPaul Mundt <lethal@linux-sh.org>2007-05-15 01:41:02 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-15 08:54:00 -0700
commit218f0aaee8a6b0e5772b95b154dea5b7701b33aa (patch)
tree4fa48f46c89c1b88c49f086278cc9951409152fc
parentf0ee9aabb0520adea5937855a9575c08a97b16e7 (diff)
nommu: add ioremap_page_range()
lib/ioremap.c is presently only built in if CONFIG_MMU is set. While this is reasonable, platforms that support both CONFIG_MMU=y or n need to be able to call in to this regardless. As none of the current nommu platforms do anything special with ioremap(), we assume that it's always successful. This fixes the SH-4 build with CONFIG_MMU=n. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/io.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h
index 09d35123637..8423dd37651 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -27,8 +27,16 @@ struct device;
void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
+#ifdef CONFIG_MMU
int ioremap_page_range(unsigned long addr, unsigned long end,
unsigned long phys_addr, pgprot_t prot);
+#else
+static inline int ioremap_page_range(unsigned long addr, unsigned long end,
+ unsigned long phys_addr, pgprot_t prot)
+{
+ return 0;
+}
+#endif
/*
* Managed iomap interface