23 lines
497 B
C
23 lines
497 B
C
// SPDX-License-Identifier: GPL-2.0+
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#ifndef __LINUX_BITMAP_H
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#define __LINUX_BITMAP_H
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#include <asm/types.h>
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#include <linux/types.h>
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#include <linux/bitops.h>
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#define small_const_nbits(nbits) \
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(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
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static inline void bitmap_zero(unsigned long *dst, int nbits)
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{
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if (small_const_nbits(nbits)) {
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*dst = 0UL;
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} else {
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int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
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memset(dst, 0, len);
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}
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}
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#endif /* __LINUX_BITMAP_H */
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