-/**
- * fc_lport_rpn_id_resp() - Handle response to Register Port
- * Name by ID (RPN_ID) request
- * @sp: current sequence in RPN_ID exchange
- * @fp: response frame
- * @lp_arg: Fibre Channel host port instance
- *
- * Locking Note: This function will be called without the lport lock
- * held, but it will lock, call an _enter_* function or fc_lport_error
- * and then unlock the lport.
- */
-static void fc_lport_rpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
- void *lp_arg)
-{
- struct fc_lport *lport = lp_arg;
- struct fc_frame_header *fh;
- struct fc_ct_hdr *ct;
-
- FC_LPORT_DBG(lport, "Received a RPN_ID %s\n", fc_els_resp_type(fp));
-
- if (fp == ERR_PTR(-FC_EX_CLOSED))
- return;
-
- mutex_lock(&lport->lp_mutex);
-
- if (lport->state != LPORT_ST_RPN_ID) {
- FC_LPORT_DBG(lport, "Received a RPN_ID response, but in state "
- "%s\n", fc_lport_state(lport));
- if (IS_ERR(fp))
- goto err;
- goto out;
- }
-
- if (IS_ERR(fp)) {
- fc_lport_error(lport, fp);
- goto err;
- }
-
- fh = fc_frame_header_get(fp);
- ct = fc_frame_payload_get(fp, sizeof(*ct));
- if (fh && ct && fh->fh_type == FC_TYPE_CT &&
- ct->ct_fs_type == FC_FST_DIR &&
- ct->ct_fs_subtype == FC_NS_SUBTYPE &&
- ntohs(ct->ct_cmd) == FC_FS_ACC)
- fc_lport_enter_rft_id(lport);
- else
- fc_lport_error(lport, fp);
-
-out:
- fc_frame_free(fp);
-err:
- mutex_unlock(&lport->lp_mutex);
-}
-