+ ret = lmb_add(base, lmb_size);
+ return (ret < 0) ? -EINVAL : 0;
+}
+
+static int pseries_drconf_memory(unsigned long *base, unsigned int action)
+{
+ struct device_node *np;
+ const unsigned long *lmb_size;
+ int rc;
+
+ np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
+ if (!np)
+ return -EINVAL;
+
+ lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
+ if (!lmb_size) {
+ of_node_put(np);
+ return -EINVAL;
+ }
+
+ if (action == PSERIES_DRCONF_MEM_ADD) {
+ rc = lmb_add(*base, *lmb_size);
+ rc = (rc < 0) ? -EINVAL : 0;
+ } else if (action == PSERIES_DRCONF_MEM_REMOVE) {
+ rc = pseries_remove_lmb(*base, *lmb_size);
+ } else {
+ rc = -EINVAL;
+ }
+
+ of_node_put(np);
+ return rc;