Do not trigger RLC bearer establishment from RRC

The RRC should not trigger RLC bearer establishment: this should be done
only via F1, and in the remaining code (removed here), this principle
was violated.

Further, this code was doubly wrong, as it used the CU UE ID for the
RLC, setting up bearers with IDs 1,2,3 etc instead of the RNTI.

openair2/RRC/NR/rrc_gNB.c

@@ -43,7 +43,6 @@
 #include "rrc_gNB_radio_bearers.h"
 
 #include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
-#include "LAYER2/RLC/rlc.h"
 #include "LAYER2/NR_MAC_gNB/mac_proto.h"
 #include "common/utils/LOG/log.h"
 #include "COMMON/mac_rrc_primitives.h"
@@ -68,7 +67,6 @@
 #include "uper_encoder.h"
 #include "uper_decoder.h"
 
-#include "rlc.h"
 #include "platform_types.h"
 #include "common/utils/LOG/vcd_signal_dumper.h"
 
@@ -188,26 +186,6 @@ static void freeDRBlist(NR_DRB_ToAddModList_t *list)
   return;
 }
 
-static void nr_rrc_addmod_drbs(int rnti,
-                               const NR_DRB_ToAddModList_t *drb_list,
-                               const struct NR_CellGroupConfig__rlc_BearerToAddModList *bearer_list)
-{
-  if (drb_list == NULL || bearer_list == NULL)
-    return;
-
-  for (int i = 0; i < drb_list->list.count; i++) {
-    const NR_DRB_ToAddMod_t *drb = drb_list->list.array[i];
-    for (int j = 0; j < bearer_list->list.count; j++) {
-      const NR_RLC_BearerConfig_t *bearer = bearer_list->list.array[j];
-      if (bearer->servedRadioBearer != NULL
-          && bearer->servedRadioBearer->present == NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity
-          && drb->drb_Identity == bearer->servedRadioBearer->choice.drb_Identity) {
-        nr_rlc_add_drb(rnti, drb->drb_Identity, bearer);
-      }
-    }
-  }
-}
-
 typedef struct deliver_dl_rrc_message_data_s {
   const gNB_RRC_INST *rrc;
   f1ap_dl_rrc_message_t *dl_rrc;
@@ -994,14 +972,6 @@ static void rrc_gNB_process_RRCReconfigurationComplete(const protocol_ctxt_t *co
                    kUPint,
                    get_softmodem_params()->sa ? ue_p->masterCellGroup->rlc_BearerToAddModList : NULL);
 
-  /* Refresh DRBs */
-  if (!NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) {
-    LOG_D(NR_RRC,"Configuring RLC DRBs/SRBs for UE %04x\n",ue_context_pP->ue_context.rnti);
-    const struct NR_CellGroupConfig__rlc_BearerToAddModList *bearer_list =
-        ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList;
-    nr_rrc_addmod_drbs(ctxt_pP->rntiMaybeUEid, DRB_configList, bearer_list);
-  }
-
   /* Loop through DRBs and establish if necessary */
   if (DRB_configList != NULL) {
     for (int i = 0; i < DRB_configList->list.count; i++) {