diff options
Diffstat (limited to 'drivers/s390/cio/airq.c')
| -rw-r--r-- | drivers/s390/cio/airq.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index d028fd800c9..f055df0b167 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -194,15 +194,14 @@ EXPORT_SYMBOL(airq_iv_release); */ unsigned long airq_iv_alloc_bit(struct airq_iv *iv) { - const unsigned long be_to_le = BITS_PER_LONG - 1; unsigned long bit; if (!iv->avail) return -1UL; spin_lock(&iv->lock); - bit = find_first_bit_left(iv->avail, iv->bits); + bit = find_first_bit_inv(iv->avail, iv->bits); if (bit < iv->bits) { - clear_bit(bit ^ be_to_le, iv->avail); + clear_bit_inv(bit, iv->avail); if (bit >= iv->end) iv->end = bit + 1; } else @@ -220,19 +219,17 @@ EXPORT_SYMBOL(airq_iv_alloc_bit); */ void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit) { - const unsigned long be_to_le = BITS_PER_LONG - 1; - if (!iv->avail) return; spin_lock(&iv->lock); /* Clear (possibly left over) interrupt bit */ - clear_bit(bit ^ be_to_le, iv->vector); + clear_bit_inv(bit, iv->vector); /* Make the bit position available again */ - set_bit(bit ^ be_to_le, iv->avail); + set_bit_inv(bit, iv->avail); if (bit == iv->end - 1) { /* Find new end of bit-field */ while (--iv->end > 0) - if (!test_bit((iv->end - 1) ^ be_to_le, iv->avail)) + if (!test_bit_inv(iv->end - 1, iv->avail)) break; } spin_unlock(&iv->lock); @@ -251,15 +248,13 @@ EXPORT_SYMBOL(airq_iv_free_bit); unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start, unsigned long end) { - const unsigned long be_to_le = BITS_PER_LONG - 1; unsigned long bit; /* Find non-zero bit starting from 'ivs->next'. */ - bit = find_next_bit_left(iv->vector, end, start); + bit = find_next_bit_inv(iv->vector, end, start); if (bit >= end) return -1UL; - /* Clear interrupt bit (find left uses big-endian bit numbers) */ - clear_bit(bit ^ be_to_le, iv->vector); + clear_bit_inv(bit, iv->vector); return bit; } EXPORT_SYMBOL(airq_iv_scan); |