fix logging when removing DRB

srsue/hdr/upper/rrc.h

@@ -637,7 +637,7 @@ private:
   void          handle_rrc_con_reconfig(uint32_t lcid, LIBLTE_RRC_CONNECTION_RECONFIGURATION_STRUCT *reconfig);
   void          add_srb(LIBLTE_RRC_SRB_TO_ADD_MOD_STRUCT *srb_cnfg);
   void          add_drb(LIBLTE_RRC_DRB_TO_ADD_MOD_STRUCT *drb_cnfg);
-  void          release_drb(uint8_t lcid);
+  void          release_drb(uint32_t drb_id);
   void          add_mrb(uint32_t lcid, uint32_t port);
   bool          apply_rr_config_dedicated(LIBLTE_RRC_RR_CONFIG_DEDICATED_STRUCT *cnfg);
   void          apply_phy_config_dedicated(LIBLTE_RRC_PHYSICAL_CONFIG_DEDICATED_STRUCT *phy_cnfg, bool apply_defaults); 

srsue/src/upper/rrc.cc

@@ -2699,8 +2699,13 @@ void rrc::add_drb(LIBLTE_RRC_DRB_TO_ADD_MOD_STRUCT *drb_cnfg) {
   rrc_log->info("Added radio bearer %s\n", get_rb_name(lcid).c_str());
 }
 
-void rrc::release_drb(uint8_t lcid) {
-  // TODO
+void rrc::release_drb(uint32_t drb_id)
+{
+  uint32_t lcid = RB_ID_SRB2 + drb_id;
+  rrc_log->info("Releasing radio bearer %s\n", get_rb_name(lcid).c_str());
+  drbs.erase(lcid);
+
+  // FIXME: add body
 }
 
 void rrc::add_mrb(uint32_t lcid, uint32_t port)