f optout21 feedback

Author: dunxen

lightning/src/ln/channel.rs

@@ -1504,7 +1504,7 @@ trait InitialRemoteCommitmentReceiver<SP: Deref> where SP::Target: SignerProvide
 
 	fn received_msg(&self) -> &'static str;
 
-	fn check_counterparty_commitment_signature<L: Deref>(&mut self, sig: &Signature, logger: &L) -> Result<CommitmentTransaction, ChannelError> where L::Target: Logger {
+	fn check_counterparty_commitment_signature<L: Deref>(&self, sig: &Signature, logger: &L) -> Result<CommitmentTransaction, ChannelError> where L::Target: Logger {
 		let funding_script = self.context().get_funding_redeemscript();
 
 		let keys = self.context().build_holder_transaction_keys();
@@ -8016,7 +8016,7 @@ impl<SP: Deref> OutboundV1Channel<SP> where SP::Target: SignerProvider {
 			Err(err) => return Err((self, err)),
 		};
 
-		self.context_mut().cur_counterparty_commitment_transaction_number -= 1;
+		self.context.cur_counterparty_commitment_transaction_number -= 1;
 		log_info!(logger, "Received funding_signed from peer for channel {}", &self.context.channel_id());
 
 		let mut channel = Channel {