bitops.h File Reference

#include <linux/kernel.h>
#include <linux/compiler.h>
#include <asm/hweight.h>

Go to the source code of this file.

Macros
#define	__WORDSIZE   (__SIZEOF_LONG__ * 8)
#define	BITS_PER_LONG   __WORDSIZE
#define	BITS_PER_BYTE   8
#define	BITS_TO_LONGS(nr)   DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
#define	BITS_TO_U64(nr)   DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
#define	BITS_TO_U32(nr)   DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
#define	for_each_set_bit(bit, addr, size)
#define	for_each_set_bit_from(bit, addr, size)
#define	BITOP_WORD(nr)   ((nr) / BITS_PER_LONG)

Macro Definition Documentation

#define __WORDSIZE   (__SIZEOF_LONG__ * 8)

Definition at line 9 of file bitops.h.

#define BITOP_WORD

(

nr

)

((nr) / BITS_PER_LONG)

Definition at line 50 of file bitops.h.

#define BITS_PER_BYTE   8

Definition at line 13 of file bitops.h.

#define BITS_PER_LONG   __WORDSIZE

Definition at line 12 of file bitops.h.

#define BITS_TO_LONGS

(

nr

)

DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))

Definition at line 14 of file bitops.h.

#define BITS_TO_U32

(

nr

)

DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))

Definition at line 16 of file bitops.h.

#define BITS_TO_U64

(

nr

)

DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))

Definition at line 15 of file bitops.h.

#define for_each_set_bit	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_first_bit((addr), (size));        \
         (bit) < (size);                    \
         (bit) = find_next_bit((addr), (size), (bit) + 1))

Definition at line 18 of file bitops.h.

#define for_each_set_bit_from	(		bit,
			addr,
			size
	)

Value:

for ((bit) = find_next_bit((addr), (size), (bit));  \
         (bit) < (size);                    \
         (bit) = find_next_bit((addr), (size), (bit) + 1))

Definition at line 24 of file bitops.h.