diff options
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index e5c4ebe586b..06f7e4fe8d2 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -131,9 +131,7 @@ void __bitmap_shift_right(unsigned long *dst, lower = src[off + k]; if (left && off + k == lim - 1) lower &= mask; - dst[k] = lower >> rem; - if (rem) - dst[k] |= upper << (BITS_PER_LONG - rem); + dst[k] = upper << (BITS_PER_LONG - rem) | lower >> rem; if (left && k == lim - 1) dst[k] &= mask; } @@ -174,9 +172,7 @@ void __bitmap_shift_left(unsigned long *dst, upper = src[k]; if (left && k == lim - 1) upper &= (1UL << left) - 1; - dst[k + off] = upper << rem; - if (rem) - dst[k + off] |= lower >> (BITS_PER_LONG - rem); + dst[k + off] = lower >> (BITS_PER_LONG - rem) | upper << rem; if (left && k + off == lim - 1) dst[k + off] &= (1UL << left) - 1; } |