diff options
Diffstat (limited to 'kvm-all.c')
| -rw-r--r-- | kvm-all.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/kvm-all.c b/kvm-all.c index 4ec153df93..2a717e5b50 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -1141,18 +1141,18 @@ static int kvm_irqchip_get_virq(KVMState *s) { uint32_t *word = s->used_gsi_bitmap; int max_words = ALIGN(s->gsi_count, 32) / 32; - int i, bit; + int i, zeroes; bool retry = true; again: /* Return the lowest unused GSI in the bitmap */ for (i = 0; i < max_words; i++) { - bit = ffs(~word[i]); - if (!bit) { + zeroes = ctz32(~word[i]); + if (zeroes == 32) { continue; } - return bit - 1 + i * 32; + return zeroes + i * 32; } if (!s->direct_msi && retry) { retry = false; |