From bf7c2b800ef6d689f90fc2bf410437ba633c108e Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Tue, 29 Sep 2020 21:33:43 +0200
Subject: [PATCH] proc_sr: log error when trying to enable faulty SR config

---
 srsue/src/stack/mac/proc_sr.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/srsue/src/stack/mac/proc_sr.cc b/srsue/src/stack/mac/proc_sr.cc
index 36c6cc9bb..f2f1bdb8d 100644
--- a/srsue/src/stack/mac/proc_sr.cc
+++ b/srsue/src/stack/mac/proc_sr.cc
@@ -70,6 +70,10 @@ bool sr_proc::need_tx(uint32_t tti)
 
 void sr_proc::set_config(srslte::sr_cfg_t& cfg)
 {
+  if (cfg.enabled && cfg.dsr_transmax == 0) {
+    Error("Zero is an invalid value for dsr-TransMax (n4, n8, n16, n32, n64 are supported). Disabling SR.\n");
+    return;
+  }
   sr_cfg = cfg;
 }