1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index b9fb8ee3308b..939e80bdbef7 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -2,6 +2,14 @@
 #define _LINUX_BITOPS_H
 #include <asm/types.h>
 
+#ifdef  __KERNEL__
+#define BIT_MASK(nr)            (1UL << ((nr) % BITS_PER_LONG))
+#define BIT_WORD(nr)            ((nr) / BITS_PER_LONG)
+#define BITS_TO_TYPE(nr, t)     (((nr)+(t)-1)/(t))
+#define BITS_TO_LONGS(nr)       BITS_TO_TYPE(nr, BITS_PER_LONG)
+#define BITS_PER_BYTE           8
+#endif
+
 /*
  * Include this here because some architectures need generic_ffs/fls in
  * scope