[PATCH] Consolidate check_signature

There's nothing arch-specific about check_signature(), so move it to
<linux/io.h>.  Use a cross between the Alpha and i386 implementations as
the generic one.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 26 deletions

diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index df624e1ee6e2..c2d124badbe5 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -562,32 +562,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 #define eth_io_copy_and_sum(skb,src,len,unused) memcpy_fromio((skb)->data,(src),(len))
 
 /*
- *     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(char __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;
-}
-
-/*
  * The caches on some architectures aren't dma-coherent and have need to
  * handle this in software.  There are three types of operations that
  * can be applied to dma buffers.