From 79f42d72e2a93ab39b57794942a90d9f143a1d8f Mon Sep 17 00:00:00 2001
From: Elias Rohrer <ero@tnull.de>
Date: Fri, 13 May 2022 18:03:51 +0200
Subject: [PATCH] Fix unused code warnings.

---
 lightning/src/util/fairrwlock.rs | 6 +-----
 lightning/src/util/mod.rs        | 2 +-
 lightning/src/util/test_utils.rs | 4 ++--
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/lightning/src/util/fairrwlock.rs b/lightning/src/util/fairrwlock.rs
index 8dd74f2b5..c9b3866be 100644
--- a/lightning/src/util/fairrwlock.rs
+++ b/lightning/src/util/fairrwlock.rs
@@ -1,4 +1,4 @@
-use std::sync::{TryLockResult, LockResult, RwLock, RwLockReadGuard, RwLockWriteGuard};
+use std::sync::{LockResult, RwLock, RwLockReadGuard, RwLockWriteGuard};
 use std::sync::atomic::{AtomicUsize, Ordering};
 
 /// Rust libstd's RwLock does not provide any fairness guarantees (and, in fact, when used on
@@ -32,10 +32,6 @@ impl<T> FairRwLock<T> {
 		res
 	}
 
-	pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<T>> {
-		self.lock.try_write()
-	}
-
 	pub fn read(&self) -> LockResult<RwLockReadGuard<T>> {
 		if self.waiting_writers.load(Ordering::Relaxed) != 0 {
 			let _write_queue_lock = self.lock.write();
diff --git a/lightning/src/util/mod.rs b/lightning/src/util/mod.rs
index 075798331..b7ee02d2c 100644
--- a/lightning/src/util/mod.rs
+++ b/lightning/src/util/mod.rs
@@ -25,7 +25,7 @@ pub mod persist;
 pub(crate) mod atomic_counter;
 pub(crate) mod byte_utils;
 pub(crate) mod chacha20;
-#[cfg(feature = "std")]
+#[cfg(all(not(test), feature = "std"))]
 pub(crate) mod fairrwlock;
 #[cfg(fuzzing)]
 pub mod zbase32;
diff --git a/lightning/src/util/test_utils.rs b/lightning/src/util/test_utils.rs
index b5953834c..5e9591d8e 100644
--- a/lightning/src/util/test_utils.rs
+++ b/lightning/src/util/test_utils.rs
@@ -267,12 +267,12 @@ impl TestChannelMessageHandler {
 		expected_msgs.as_mut().unwrap().push(ev);
 	}
 
-	fn received_msg(&self, ev: wire::Message<()>) {
+	fn received_msg(&self, _ev: wire::Message<()>) {
 		let mut msgs = self.expected_recv_msgs.lock().unwrap();
 		if msgs.is_none() { return; }
 		assert!(!msgs.as_ref().unwrap().is_empty(), "Received message when we weren't expecting one");
 		#[cfg(test)]
-		assert_eq!(msgs.as_ref().unwrap()[0], ev);
+		assert_eq!(msgs.as_ref().unwrap()[0], _ev);
 		msgs.as_mut().unwrap().remove(0);
 	}
 }
-- 
2.39.5