1/*
 2 * From lib/bitmap.c
 3 * Helper functions for bitmap.h.
 4 *
 5 * This source code is licensed under the GNU General Public License,
 6 * Version 2.  See the file COPYING for more details.
 7 */
 8#include <linux/bitmap.h>
 9
10int __bitmap_weight(const unsigned long *bitmap, int bits)
11{
12	int k, w = 0, lim = bits/BITS_PER_LONG;
13
14	for (k = 0; k < lim; k++)
15		w += hweight_long(bitmap[k]);
16
17	if (bits % BITS_PER_LONG)
18		w += hweight_long(bitmap[k] & BITMAP_LAST_WORD_MASK(bits));
19
20	return w;
21}
22
23void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
24		 const unsigned long *bitmap2, int bits)
25{
26	int k;
27	int nr = BITS_TO_LONGS(bits);
28
29	for (k = 0; k < nr; k++)
30		dst[k] = bitmap1[k] | bitmap2[k];
31}