commit 6554f5c03793bb8a3d5dedcebf758a1694fa186c
author Peter Maydell <peter.maydell@linaro.org> Fri Jul 24 13:33:10 2015 +0100
committer Peter Maydell <peter.maydell@linaro.org> Mon Sep 07 14:19:00 2015 +0100
tree 3a88b2862a1dd6454fbd4a82cd376fd05c3392e0
parent 26efcec158a87133bb6255ae7d3127a5fa6e66fd

exec.c: Use pow2floor() rather than hand-calculation

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

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1437741192-20955-5-git-send-email-peter.maydell@linaro.org

exec.c

diff --git a/exec.c b/exec.c
index 54cd70a..31d2dc7 100644
--- a/exec.c
+++ b/exec.c
@@ -2374,9 +2374,7 @@
     if (l > access_size_max) {
         l = access_size_max;
     }
-    if (l & (l - 1)) {
-        l = 1 << (qemu_fls(l) - 1);
-    }
+    l = pow2floor(l);
 
     return l;
 }