Use clz32 directly. Which makes slightly more sense given
that the input is type "int" and not type "long".
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
target-i386/topology.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/target-i386/topology.h b/target-i386/topology.h
index 24ed525..07a6c5f 100644
--- a/target-i386/topology.h
+++ b/target-i386/topology.h
@@ -52,10 +52,8 @@ typedef uint32_t apic_id_t;
static unsigned apicid_bitwidth_for_count(unsigned count)
{
g_assert(count >= 1);
- if (count == 1) {
- return 0;
- }
- return bitops_flsl(count - 1) + 1;
+ count -= 1;
+ return count ? 32 - clz32(count) : 0;
}
/* Bit width of the SMT_ID (thread ID) field on the APIC ID
--
1.8.1.2
