nr_fill_ulsch(): gracefully handle case of no ulsch found

openair1/PHY/NR_TRANSPORT/nr_ulsch.c

@@ -34,7 +34,7 @@
 #include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
 #include "PHY/NR_TRANSPORT/nr_ulsch.h"
 
-NR_gNB_ULSCH_t *find_nr_ulsch(PHY_VARS_gNB *gNB, uint16_t rnti, int pid)
+static NR_gNB_ULSCH_t *find_nr_ulsch(PHY_VARS_gNB *gNB, uint16_t rnti, int pid)
 {
   int16_t first_free_index = -1;
   AssertFatal(gNB != NULL, "gNB is null\n");
@@ -62,7 +62,10 @@ void nr_fill_ulsch(PHY_VARS_gNB *gNB, int frame, int slot, nfapi_nr_pusch_pdu_t
 {
   int harq_pid = ulsch_pdu->pusch_data.harq_process_id;
   NR_gNB_ULSCH_t *ulsch = find_nr_ulsch(gNB, ulsch_pdu->rnti, harq_pid);
-  AssertFatal(ulsch, "No ulsch_id found for rnti %04x\n", ulsch_pdu->rnti);
+  if (ulsch == NULL) {
+    LOG_E(NR_PHY, "No ulsch_id found for rnti %04x\n", ulsch_pdu->rnti);
+    return;
+  }
 
   ulsch->rnti = ulsch_pdu->rnti;
   ulsch->harq_pid = harq_pid;

openair1/PHY/NR_TRANSPORT/nr_ulsch.h

@@ -73,8 +73,6 @@ void nr_ulsch_unscrambling(int16_t* llr, uint32_t size, uint32_t Nid, uint32_t n
 
 void nr_ulsch_layer_demapping(int16_t *llr_cw, uint8_t Nl, uint8_t mod_order, uint32_t length, int16_t **llr_layers);
 
-NR_gNB_ULSCH_t *find_nr_ulsch(PHY_VARS_gNB *gNB, uint16_t rnti, int pid);
-
 void dump_pusch_stats(FILE *fd,PHY_VARS_gNB *gNB);
 
 void dump_nr_I0_stats(FILE *fd,PHY_VARS_gNB *gNB);