diff options
| -rw-r--r-- | include/qemu/bitops.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/include/qemu/bitops.h b/include/qemu/bitops.h index 3acbf33..a72f69f 100644 --- a/include/qemu/bitops.h +++ b/include/qemu/bitops.h @@ -140,7 +140,8 @@ static inline int test_bit(long nr, const unsigned long *addr) * @addr: The address to start the search at * @size: The maximum size to search * - * Returns the bit number of the first set bit, or size. + * Returns the bit number of the last set bit, + * or @size if there is no set bit in the bitmap. */ unsigned long find_last_bit(const unsigned long *addr, unsigned long size); @@ -150,6 +151,9 @@ unsigned long find_last_bit(const unsigned long *addr, * @addr: The address to base the search on * @offset: The bitnumber to start searching at * @size: The bitmap size in bits + * + * Returns the bit number of the next set bit, + * or @size if there are no further set bits in the bitmap. */ unsigned long find_next_bit(const unsigned long *addr, unsigned long size, @@ -160,6 +164,9 @@ unsigned long find_next_bit(const unsigned long *addr, * @addr: The address to base the search on * @offset: The bitnumber to start searching at * @size: The bitmap size in bits + * + * Returns the bit number of the next cleared bit, + * or @size if there are no further clear bits in the bitmap. */ unsigned long find_next_zero_bit(const unsigned long *addr, @@ -171,7 +178,8 @@ unsigned long find_next_zero_bit(const unsigned long *addr, * @addr: The address to start the search at * @size: The maximum size to search * - * Returns the bit number of the first set bit. + * Returns the bit number of the first set bit, + * or @size if there is no set bit in the bitmap. */ static inline unsigned long find_first_bit(const unsigned long *addr, unsigned long size) @@ -194,7 +202,8 @@ static inline unsigned long find_first_bit(const unsigned long *addr, * @addr: The address to start the search at * @size: The maximum size to search * - * Returns the bit number of the first cleared bit. + * Returns the bit number of the first cleared bit, + * or @size if there is no clear bit in the bitmap. */ static inline unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size) |