diff --git a/mavlink-core/src/connection/direct_serial.rs b/mavlink-core/src/connection/direct_serial.rs
index 0d23ea3a4f..e7065d10c7 100644
--- a/mavlink-core/src/connection/direct_serial.rs
+++ b/mavlink-core/src/connection/direct_serial.rs
@@ -124,6 +124,6 @@ impl<M: Message> MavConnection<M> for SerialConnection {
 
     #[cfg(feature = "signing")]
     fn setup_signing(&mut self, signing_data: Option<SigningConfig>) {
-        self.signing_data = signing_data.map(|cfg| SigningData::from_config(cfg))
+        self.signing_data = signing_data.map(SigningData::from_config)
     }
 }
diff --git a/mavlink-core/src/connection/file.rs b/mavlink-core/src/connection/file.rs
index ac403659c8..2340a37ccb 100644
--- a/mavlink-core/src/connection/file.rs
+++ b/mavlink-core/src/connection/file.rs
@@ -75,6 +75,6 @@ impl<M: Message> MavConnection<M> for FileConnection {
 
     #[cfg(feature = "signing")]
     fn setup_signing(&mut self, signing_data: Option<SigningConfig>) {
-        self.signing_data = signing_data.map(|cfg| SigningData::from_config(cfg))
+        self.signing_data = signing_data.map(SigningData::from_config)
     }
 }
diff --git a/mavlink-core/src/connection/tcp.rs b/mavlink-core/src/connection/tcp.rs
index 8e8212702c..76f8ff2cf4 100644
--- a/mavlink-core/src/connection/tcp.rs
+++ b/mavlink-core/src/connection/tcp.rs
@@ -144,6 +144,6 @@ impl<M: Message> MavConnection<M> for TcpConnection {
 
     #[cfg(feature = "signing")]
     fn setup_signing(&mut self, signing_data: Option<SigningConfig>) {
-        self.signing_data = signing_data.map(|cfg| SigningData::from_config(cfg))
+        self.signing_data = signing_data.map(SigningData::from_config)
     }
 }
diff --git a/mavlink-core/src/connection/udp.rs b/mavlink-core/src/connection/udp.rs
index dbbdaa6e30..d5a1851acc 100644
--- a/mavlink-core/src/connection/udp.rs
+++ b/mavlink-core/src/connection/udp.rs
@@ -196,7 +196,7 @@ impl<M: Message> MavConnection<M> for UdpConnection {
 
     #[cfg(feature = "signing")]
     fn setup_signing(&mut self, signing_data: Option<SigningConfig>) {
-        self.signing_data = signing_data.map(|cfg| SigningData::from_config(cfg))
+        self.signing_data = signing_data.map(SigningData::from_config)
     }
 }
 
diff --git a/mavlink-core/src/lib.rs b/mavlink-core/src/lib.rs
index 53dc8bfb38..85687cdc06 100644
--- a/mavlink-core/src/lib.rs
+++ b/mavlink-core/src/lib.rs
@@ -716,11 +716,11 @@ impl MAVLinkV2MessageRaw {
     pub fn calculate_signature(&self, secret_key: &[u8], target_buffer: &mut [u8; 6]) {
         let mut hasher = Sha256::new();
         hasher.update(secret_key);
-        hasher.update(&[MAV_STX_V2]);
+        hasher.update([MAV_STX_V2]);
         hasher.update(self.header());
         hasher.update(self.payload());
         hasher.update(self.checksum_bytes());
-        hasher.update(&[self.signature_link_id()]);
+        hasher.update([self.signature_link_id()]);
         hasher.update(self.signature_timestamp_bytes());
         target_buffer.copy_from_slice(&hasher.finalize()[0..6]);
     }
@@ -878,13 +878,13 @@ fn read_v2_raw_message_inner<M: Message, R: Read>(
 }
 
 /// Async read a raw buffer with the mavlink message
-/// 
+///
 /// V2 maximum size is 280 bytes: `<https://mavlink.io/en/guide/serialization.html>`
 #[cfg(feature = "tokio-1")]
 pub async fn read_v2_raw_message_async<M: Message, R: tokio::io::AsyncReadExt + Unpin>(
     reader: &mut R,
 ) -> Result<MAVLinkV2MessageRaw, error::MessageReadError> {
-    read_v2_raw_message_async_inner::<M,R>(reader, None).await
+    read_v2_raw_message_async_inner::<M, R>(reader, None).await
 }
 
 /// Async read a raw buffer with the mavlink message
diff --git a/mavlink/tests/tcp_loopback_tests.rs b/mavlink/tests/tcp_loopback_tests.rs
index 3d68bf19be..e111545507 100644
--- a/mavlink/tests/tcp_loopback_tests.rs
+++ b/mavlink/tests/tcp_loopback_tests.rs
@@ -6,7 +6,7 @@ mod test_tcp_connections {
 
     #[cfg(feature = "signing")]
     use mavlink::SigningConfig;
-
+    #[cfg(feature = "signing")]
     use crate::test_shared;
 
     /// Test whether we can send a message via TCP and receive it OK. This also test signing as a property of a MavConnection if the signing feature is enabled.