[Qemu-block] [PATCH 4/5] exec.c: Use pow2floor() rather than hand-calculation

[Peter Maydell]

Use pow2floor() to round down to the nearest power of 2,
rather than an inline calculation.

Signed-off-by: Peter Maydell <address@hidden>
---
 exec.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/exec.c b/exec.c
index 7d60e15..4710e2d 100644
--- a/exec.c
+++ b/exec.c
@@ -2371,9 +2371,7 @@ static int memory_access_size(MemoryRegion *mr, unsigned 
l, hwaddr addr)
     if (l > access_size_max) {
         l = access_size_max;
     }
-    if (l & (l - 1)) {
-        l = 1 << (qemu_fls(l) - 1);
-    }
+    l = pow2floor(l);
 
     return l;
 }
-- 
1.9.1