mac: remove unused rwlock and unused cqi counter

Signed-off-by: Carlo Galiotto <carlo@srs.io>

srsenb/hdr/stack/mac/nr/ue_nr.h

@@ -84,7 +84,6 @@ private:
   std::atomic<bool> active_state{true};
 
   uint32_t         phr_counter          = 0;
-  uint32_t         dl_cqi_counter       = 0;
   uint32_t         dl_cqi_valid_counter = 0;
   uint32_t         dl_ri_counter        = 0;
   uint32_t         dl_pmi_counter       = 0;

srsenb/src/stack/mac/nr/mac_nr.cc

@@ -367,7 +367,6 @@ bool mac_nr::handle_uci_data(const uint16_t rnti, const srsran_uci_cfg_nr_t& cfg
   }
 
   // Process CQI
-  srsran::rwlock_read_guard rw_lock(rwmutex);
   ue_db[rnti]->metrics_dl_cqi(cfg_, value.csi->wideband_cri_ri_pmi_cqi.cqi, value.valid);
 
   return true;

srsenb/src/stack/mac/nr/ue_nr.cc

@@ -190,7 +190,7 @@ void ue_nr::metrics_read(mac_ue_metrics_t* metrics_)
 
   *metrics_            = ue_metrics;
   phr_counter          = 0;
-  dl_cqi_counter = 0;
+  dl_cqi_valid_counter = 0;
   ue_metrics           = {};
 }
 
@@ -200,9 +200,6 @@ void ue_nr::metrics_dl_cqi(const srsran_uci_cfg_nr_t& cfg_, uint32_t dl_cqi, boo
 
   // Process CQI
   for (uint32_t i = 0; i < cfg_.nof_csi; i++) {
-    // Increment CQI opportunity
-    dl_cqi_counter++;
-
     // Skip if invalid or not supported CSI report
     if (not valid_cqi or cfg_.csi[i].cfg.quantity != SRSRAN_CSI_REPORT_QUANTITY_CRI_RI_PMI_CQI or
         cfg_.csi[i].cfg.freq_cfg != SRSRAN_CSI_REPORT_FREQ_WIDEBAND) {
@@ -210,7 +207,7 @@ void ue_nr::metrics_dl_cqi(const srsran_uci_cfg_nr_t& cfg_, uint32_t dl_cqi, boo
     }
 
     // Add statistics
-    ue_metrics.dl_cqi = SRSRAN_VEC_SAFE_CMA(dl_cqi, ue_metrics.dl_cqi, dl_cqi_counter);
+    ue_metrics.dl_cqi = SRSRAN_VEC_SAFE_CMA(dl_cqi, ue_metrics.dl_cqi, dl_cqi_valid_counter);
     dl_cqi_valid_counter++;
   }
 }