#include <sys/zap.h>
#include <sys/dmu_tx.h>
-int ddt_zap_leaf_blockshift = 12;
-int ddt_zap_indirect_blockshift = 12;
+static const int ddt_zap_leaf_blockshift = 12;
+static const int ddt_zap_indirect_blockshift = 12;
static int
ddt_zap_create(objset_t *os, uint64_t *objectp, dmu_tx_t *tx, boolean_t prehash)