1 /* SPDX-License-Identifier: GPL-2.0 */
31  * Defined here because those may be needed by architecture-specific static
52 #include <asm-generic/bitops.h>
54 #define for_each_set_bit(bit, addr, size) \  argument
55 	for ((bit) = find_first_bit((addr), (size));		\
56 	     (bit) < (size);					\
57 	     (bit) = find_next_bit((addr), (size), (bit) + 1))
59 #define for_each_clear_bit(bit, addr, size) \  argument
60 	for ((bit) = find_first_zero_bit((addr), (size));       \
61 	     (bit) < (size);                                    \
62 	     (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
64 /* same as for_each_set_bit() but use bit as value to start with */
65 #define for_each_set_bit_from(bit, addr, size) \  argument
66 	for ((bit) = find_next_bit((addr), (size), (bit));	\
67 	     (bit) < (size);					\
68 	     (bit) = find_next_bit((addr), (size), (bit) + 1))
83  * rol32 - rotate a 32-bit value left
85  * @shift: bits to roll
87 static inline __u32 rol32(__u32 word, unsigned int shift)  in rol32()  argument
89 	return (word << shift) | (word >> ((-shift) & 31));  in rol32()
93  * sign_extend64 - sign extend a 64-bit value using specified bit as sign-bit
95  * @index: 0 based bit index (0<=index<64) to sign bit
99 	__u8 shift = 63 - index;  in sign_extend64()  local
100 	return (__s64)(value << shift) >> shift;  in sign_extend64()