-static struct sk_buff *cfg_set_netid(struct net *net)
-{
- struct tipc_net *tn = net_generic(net, tipc_net_id);
- u32 value;
-
- if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
- return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
- value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
- if (value == tn->net_id)
- return tipc_cfg_reply_none();
- if (value < 1 || value > 9999)
- return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
- " (network id must be 1-9999)");
- if (tn->own_addr)
- return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
- " (cannot change network id once TIPC has joined a network)");
- tn->net_id = value;
- return tipc_cfg_reply_none();
-}
-