diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:04:07 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-08-23 18:04:07 +0900 |
| commit | c3144fc46f987413df10e83659f0bf1aad76f79e (patch) | |
| tree | a09f3c13c32664a617d3981ae111436c3127ccc3 /lib/bitmap.c | |
| parent | 4f896ffca2b72f4b719746e7fbb0b623252e6ac9 (diff) | |
| parent | cc58f597afc63a57bb55ed97c2a72f7405320c93 (diff) | |
Merge branches 'sh/hwblk' and 'sh/pm-runtime'
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 35a1f7ff4149..702565821c99 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -179,14 +179,16 @@ void __bitmap_shift_left(unsigned long *dst, } EXPORT_SYMBOL(__bitmap_shift_left); -void __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, +int __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits) { int k; int nr = BITS_TO_LONGS(bits); + unsigned long result = 0; for (k = 0; k < nr; k++) - dst[k] = bitmap1[k] & bitmap2[k]; + result |= (dst[k] = bitmap1[k] & bitmap2[k]); + return result != 0; } EXPORT_SYMBOL(__bitmap_and); @@ -212,14 +214,16 @@ void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1, } EXPORT_SYMBOL(__bitmap_xor); -void __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, +int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, const unsigned long *bitmap2, int bits) { int k; int nr = BITS_TO_LONGS(bits); + unsigned long result = 0; for (k = 0; k < nr; k++) - dst[k] = bitmap1[k] & ~bitmap2[k]; + result |= (dst[k] = bitmap1[k] & ~bitmap2[k]); + return result != 0; } EXPORT_SYMBOL(__bitmap_andnot); |