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[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>
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committed by
Linus Torvalds
parent
53d5ed627d
commit
e50190a834
@@ -178,22 +178,6 @@ extern void iounmap(void *addr);
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unsigned long onchip_remap(unsigned long addr, unsigned long size, const char* name);
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extern void onchip_unmap(unsigned long vaddr);
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static __inline__ int check_signature(volatile void __iomem *io_addr,
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const unsigned char *signature, int length)
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{
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int retval = 0;
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do {
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if (readb(io_addr) != *signature)
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goto out;
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io_addr++;
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signature++;
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length--;
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} while (length);
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retval = 1;
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out:
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return retval;
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}
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/*
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* The caches on some architectures aren't dma-coherent and have need to
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* handle this in software. There are three types of operations that
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