diff options
Diffstat (limited to 'include/linux/io.h')
| -rw-r--r-- | include/linux/io.h | 29 |
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 */ |