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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2013-05-07 15:12:40 +0100 |
|---|---|---|
| committer | Ian Campbell <ian.campbell@citrix.com> | 2013-05-08 11:02:09 +0100 |
| commit | d1688bd8f94402f61a8d74cac908f05b5f5fbc88 (patch) | |
| tree | e9f90cd2330d05c4ab4fb09f2e6a98395dbc24d3 /xen/include/xen/bitops.h | |
| parent | 6b0e8e43348a6b5548224ae8edc4907a60bf14d1 (diff) | |
| download | xen-d1688bd8f94402f61a8d74cac908f05b5f5fbc88.tar.gz xen-d1688bd8f94402f61a8d74cac908f05b5f5fbc88.tar.bz2 xen-d1688bd8f94402f61a8d74cac908f05b5f5fbc88.zip | |
xen: move for_each_set_bit to xen/bitops.h
Move for_each_set_bit from asm-x86/bitops.h to xen/bitops.h.
Replace #include <asm/bitops.h> with #include <xen/bitops.h> everywhere.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/xen/bitops.h')
| -rw-r--r-- | xen/include/xen/bitops.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/xen/include/xen/bitops.h b/xen/include/xen/bitops.h index c6a78b6512..6054155c82 100644 --- a/xen/include/xen/bitops.h +++ b/xen/include/xen/bitops.h @@ -182,4 +182,15 @@ static inline __u32 ror32(__u32 word, unsigned int shift) #define __L16(_x) (((_x) & 0x0000ff00) ? ( 8 + __L8( (_x)>> 8)) : __L8( _x)) #define LOG_2(_x) (((_x) & 0xffff0000) ? (16 + __L16((_x)>>16)) : __L16(_x)) +/** + * for_each_set_bit - iterate over every set bit in a memory region + * @bit: The integer iterator + * @addr: The address to base the search on + * @size: The maximum size to search + */ +#define for_each_set_bit(bit, addr, size) \ + for ( (bit) = find_first_bit(addr, size); \ + (bit) < (size); \ + (bit) = find_next_bit(addr, size, (bit) + 1) ) + #endif |