int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
{
struct device_node *dn;
struct property *prop;
u32 count, drc_index;
int rc;
count = hp_elog->_drc_u.drc_count;
drc_index = hp_elog->_drc_u.drc_index;
lock_device_hotplug();
dn = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
if (!dn) {
rc = -EINVAL;
goto dlpar_memory_out;
}
prop = dlpar_clone_drconf_property(dn);
if (!prop) {
rc = -EINVAL;
goto dlpar_memory_out;
}
switch (hp_elog->action) {
case PSERIES_HP_ELOG_ACTION_ADD:
if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT)
rc = dlpar_memory_add_by_count(count, prop);
else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX)
rc = dlpar_memory_add_by_index(drc_index, prop);
else
rc = -EINVAL;
break;
case PSERIES_HP_ELOG_ACTION_REMOVE:
if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT)
rc = dlpar_memory_remove_by_count(count, prop);
else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX)
rc = dlpar_memory_remove_by_index(drc_index, prop);
else
rc = -EINVAL;
break;
default:
pr_err("Invalid action (%d) specified\n", hp_elog->action);
rc = -EINVAL;
break;
}
dlpar_free_property(prop);
dlpar_memory_out:
of_node_put(dn);
unlock_device_hotplug();
return rc;
}
static struct property *dlpar_clone_property(struct property *prop,
u32 prop_size)
{
struct property *new_prop;
new_prop = kzalloc(sizeof(*new_prop), GFP_KERNEL);
if (!new_prop)
return NULL;
new_prop->name = kstrdup(prop->name, GFP_KERNEL);
new_prop->value = kzalloc(prop_size, GFP_KERNEL);
if (!new_prop->name || !new_prop->value) {
dlpar_free_property(new_prop);
return NULL;
}
memcpy(new_prop->value, prop->value, prop->length);
new_prop->length = prop_size;
of_property_set_flag(new_prop, OF_DYNAMIC);
return new_prop;
}
