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authorAndrew Morton <akpm@linux-foundation.org>2007-07-16 10:41:38 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 20:05:50 +0400
commitcc2ea416b2aa04d0c34ff2281a23dae5b76b7b3b (patch)
tree15dd3cebcb85e21ef744f184ab33c163d8ffdacc /include/linux/io.h
parent4e7bd66318b3ae60fbba7d886d9a98b71ffbf74e (diff)
downloadlinux-cc2ea416b2aa04d0c34ff2281a23dae5b76b7b3b.tar.xz
uninline check_signature()
This is a rather bizarre thing to have inlined in io.h. Stick it in lib/ instead. While we're there, despaghetti it a bit, and fix its off-by-one behaviour when passed a zero length. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/io.h')
-rw-r--r--include/linux/io.h29
1 files changed, 2 insertions, 27 deletions
diff --git a/include/linux/io.h b/include/linux/io.h
index 8423dd376514..e3b2dda6c8eb 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -63,32 +63,7 @@ void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset,
unsigned long size);
void devm_iounmap(struct device *dev, void __iomem *addr);
-
-/**
- * check_signature - find BIOS signatures
- * @io_addr: mmio address to check
- * @signature: signature block
- * @length: length of signature
- *
- * Perform a signature comparison with the mmio address io_addr. This
- * address should have been obtained by ioremap.
- * Returns 1 on a match.
- */
-
-static inline int check_signature(const volatile void __iomem *io_addr,
- const unsigned char *signature, int length)
-{
- int retval = 0;
- do {
- if (readb(io_addr) != *signature)
- goto out;
- io_addr++;
- signature++;
- length--;
- } while (length);
- retval = 1;
-out:
- return retval;
-}
+int check_signature(const volatile void __iomem *io_addr,
+ const unsigned char *signature, int length);
#endif /* _LINUX_IO_H */