diff --git a/[refs] b/[refs]
index 0e0549ba5430..20e5d415bbb9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5b0bf5e25efea77103b0ac7c8057cd56c778ef41
+refs/heads/master: cf78237d7b0e683d172e40b1e85b26ca49a3cdba
diff --git a/trunk/drivers/net/mlx4/mr.c b/trunk/drivers/net/mlx4/mr.c
index 5b87183e62ce..60a6ee27cfd4 100644
--- a/trunk/drivers/net/mlx4/mr.c
+++ b/trunk/drivers/net/mlx4/mr.c
@@ -444,7 +444,7 @@ int __devinit mlx4_init_mr_table(struct mlx4_dev *dev)
 		goto err_buddy;
 
 	if (dev->caps.reserved_mtts) {
-		if (mlx4_alloc_mtt_range(dev, ilog2(dev->caps.reserved_mtts)) == -1) {
+		if (mlx4_alloc_mtt_range(dev, fls(dev->caps.reserved_mtts - 1)) == -1) {
 			mlx4_warn(dev, "MTT table of order %d is too small.\n",
 				  mr_table->mtt_buddy.max_order);
 			err = -ENOMEM;