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| author | David S. Miller <davem@davemloft.net> | 2009-09-04 02:22:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-04 02:22:21 -0700 |
| commit | a29889a5369d2604c2053bcd051519a2445d8a70 (patch) | |
| tree | b17e8258894d079b4168994d9438ba7d6e7d1523 /lib/bitmap.c | |
| parent | e7a088f935180b90cfe6ab0aaae8a556f46885fe (diff) | |
| parent | 37d0892c5a94e208cf863e3b7bac014edee4346d (diff) | |
| download | kernel-crypto-a29889a5369d2604c2053bcd051519a2445d8a70.tar.gz kernel-crypto-a29889a5369d2604c2053bcd051519a2445d8a70.tar.xz kernel-crypto-a29889a5369d2604c2053bcd051519a2445d8a70.zip | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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 35a1f7ff414..702565821c9 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); |