[PATCH] IB/mthca: use generic function instead of arbel_ version in mthca_free_region()

Use the generic key_to_hw_index() function instead of the Arbel-specific
version in mthca_free_region().
Signed-off-by: Guy German <guyg@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/mthca/mthca_mr.c

@@ -459,7 +459,7 @@ int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
 static void mthca_free_region(struct mthca_dev *dev, u32 lkey)
 {
 	mthca_table_put(dev, dev->mr_table.mpt_table,
-			arbel_key_to_hw_index(lkey));
+			key_to_hw_index(dev, lkey));
 
 	mthca_free(&dev->mr_table.mpt_alloc, key_to_hw_index(dev, lkey));
 }