1 files changed, 3 insertions, 14 deletions

diff --git a/include/linux/bcd.h b/include/linux/bcd.h
index c545308125b0..22ea563ba3eb 100644
--- a/include/linux/bcd.h
+++ b/include/linux/bcd.h
@@ -1,20 +1,9 @@
-/* Permission is hereby granted to copy, modify and redistribute this code
- * in terms of the GNU Library General Public License, Version 2 or later,
- * at your option.
- */
-
-/* macros to translate to/from binary and binary-coded decimal (frequently
- * found in RTC chips).
- */
-
 #ifndef _BCD_H
 #define _BCD_H
 
-#define BCD2BIN(val)    (((val) & 0x0f) + ((val)>>4)*10)
-#define BIN2BCD(val)    ((((val)/10)<<4) + (val)%10)
+#include <linux/compiler.h>
 
-/* backwards compat */
-#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
-#define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
+unsigned bcd2bin(unsigned char val) __attribute_const__;
+unsigned char bin2bcd(unsigned val) __attribute_const__;
 
 #endif /* _BCD_H */