diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 9dea8f9bbcae6..e7c6e7bc52779 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -296,6 +296,8 @@ enum iwl_d3_status {
  *	are sent
  * @STATUS_TRANS_IDLE: the trans is idle - general commands are not to be sent
  * @STATUS_TRANS_DEAD: trans is dead - avoid any read/write operation
+ * @STATUS_SUPPRESS_CMD_ERROR_ONCE: suppress "FW error in SYNC CMD" once,
+ *	e.g. for testing
  */
 enum iwl_trans_status {
 	STATUS_SYNC_HCMD_ACTIVE,
@@ -308,6 +310,7 @@ enum iwl_trans_status {
 	STATUS_TRANS_GOING_IDLE,
 	STATUS_TRANS_IDLE,
 	STATUS_TRANS_DEAD,
+	STATUS_SUPPRESS_CMD_ERROR_ONCE,
 };
 
 static inline int
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index ff66001d507ef..f1e9d2c99051e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1022,6 +1022,11 @@ static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 	if (mvm->fw_restart >= 0)
 		mvm->fw_restart++;
 
+	if (count == 6 && !strcmp(buf, "nolog\n")) {
+		set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
+		set_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE, &mvm->trans->status);
+	}
+
 	/* take the return value to make compiler happy - it will fail anyway */
 	ret = iwl_mvm_send_cmd_pdu(mvm,
 				   WIDE_ID(LONG_GROUP, REPLY_ERROR),
@@ -1038,6 +1043,9 @@ static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
 	if (!iwl_mvm_firmware_running(mvm))
 		return -EIO;
 
+	if (count == 6 && !strcmp(buf, "nolog\n"))
+		set_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status);
+
 	iwl_force_nmi(mvm->trans);
 
 	return count;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index f7ff7f2e39283..92d6e3dbbb62e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1137,6 +1137,8 @@ struct iwl_mvm {
  * @IWL_MVM_STATUS_FIRMWARE_RUNNING: firmware is running
  * @IWL_MVM_STATUS_NEED_FLUSH_P2P: need to flush P2P bcast STA
  * @IWL_MVM_STATUS_IN_D3: in D3 (or at least about to go into it)
+ * @IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE: suppress one error log
+ *	if this is set, when intentionally triggered
  */
 enum iwl_mvm_status {
 	IWL_MVM_STATUS_HW_RFKILL,
@@ -1148,6 +1150,7 @@ enum iwl_mvm_status {
 	IWL_MVM_STATUS_FIRMWARE_RUNNING,
 	IWL_MVM_STATUS_NEED_FLUSH_P2P,
 	IWL_MVM_STATUS_IN_D3,
+	IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
 };
 
 struct iwl_mvm_csme_conn_info {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index cc1879e10c659..6bb4e4d9d95af 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1841,7 +1841,9 @@ static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 
-	if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
+	if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
+	    !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
+				&mvm->status))
 		iwl_mvm_dump_nic_error_log(mvm);
 
 	if (sync) {
diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
index 0f3526b0c5b00..0730657d54bf8 100644
--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
@@ -1753,8 +1753,11 @@ static int iwl_trans_txq_send_hcmd_sync(struct iwl_trans *trans,
 	}
 
 	if (test_bit(STATUS_FW_ERROR, &trans->status)) {
-		IWL_ERR(trans, "FW error in SYNC CMD %s\n", cmd_str);
-		dump_stack();
+		if (!test_and_clear_bit(STATUS_SUPPRESS_CMD_ERROR_ONCE,
+					&trans->status)) {
+			IWL_ERR(trans, "FW error in SYNC CMD %s\n", cmd_str);
+			dump_stack();
+		}
 		ret = -EIO;
 		goto cancel;
 	}