diff --git a/samples/command_executer/src/command_parser.rs b/samples/command_executer/src/command_parser.rs
index 0d321f44e..9feaf7c38 100644
--- a/samples/command_executer/src/command_parser.rs
+++ b/samples/command_executer/src/command_parser.rs
@@ -101,11 +101,7 @@ fn parse_command(args: &ArgMatches) -> Result<String, String> {
 }
 
 fn parse_no_wait(args: &ArgMatches) -> bool {
-    if args.is_present("no-wait") {
-        true
-    } else {
-        false
-    }
+    args.is_present("no-wait")
 }
 
 fn parse_localfile(args: &ArgMatches) -> Result<String, String> {
diff --git a/samples/command_executer/src/lib.rs b/samples/command_executer/src/lib.rs
index afa635e56..f2c0bf44e 100644
--- a/samples/command_executer/src/lib.rs
+++ b/samples/command_executer/src/lib.rs
@@ -120,7 +120,7 @@ fn run_server(fd: RawFd, no_wait: bool) -> Result<(), String> {
     let buf = json_output.as_bytes();
     let len: u64 = buf.len().try_into().map_err(|err| format!("{:?}", err))?;
     send_u64(fd, len)?;
-    send_loop(fd, &buf, len)?;
+    send_loop(fd, buf, len)?;
     Ok(())
 }
 
@@ -261,7 +261,7 @@ pub fn run(args: RunArgs) -> Result<i32, String> {
     let buf = args.command.as_bytes();
     let len: u64 = buf.len().try_into().map_err(|err| format!("{:?}", err))?;
     send_u64(socket_fd, len)?;
-    send_loop(socket_fd, &buf, len)?;
+    send_loop(socket_fd, buf, len)?;
 
     // recv output
     let mut buf = [0u8; BUF_MAX_LEN];
@@ -304,7 +304,7 @@ pub fn recv_file(args: FileArgs) -> Result<(), String> {
     let buf = args.remotefile.as_bytes();
     let len: u64 = buf.len().try_into().map_err(|err| format!("{:?}", err))?;
     send_u64(socket_fd, len)?;
-    send_loop(socket_fd, &buf, len)?;
+    send_loop(socket_fd, buf, len)?;
 
     // Receive filesize
     let filesize = recv_u64(socket_fd)?;
@@ -344,7 +344,7 @@ pub fn send_file(args: FileArgs) -> Result<(), String> {
     let buf = args.remotefile.as_bytes();
     let len: u64 = buf.len().try_into().map_err(|err| format!("{:?}", err))?;
     send_u64(socket_fd, len)?;
-    send_loop(socket_fd, &buf, len)?;
+    send_loop(socket_fd, buf, len)?;
 
     let filesize = file
         .metadata()
diff --git a/samples/command_executer/src/protocol_helpers.rs b/samples/command_executer/src/protocol_helpers.rs
index 39d297c14..2cc171fec 100644
--- a/samples/command_executer/src/protocol_helpers.rs
+++ b/samples/command_executer/src/protocol_helpers.rs
@@ -7,7 +7,7 @@ use std::os::unix::io::RawFd;
 pub fn send_u64(fd: RawFd, val: u64) -> Result<(), String> {
     let mut buf = [0u8; 9];
     LittleEndian::write_u64(&mut buf, val);
-    send_loop(fd, &mut buf, 9)?;
+    send_loop(fd, &buf, 9)?;
     Ok(())
 }
 
@@ -21,7 +21,7 @@ pub fn recv_u64(fd: RawFd) -> Result<u64, String> {
 pub fn send_i32(fd: RawFd, val: i32) -> Result<(), String> {
     let mut buf = [0u8; 4];
     LittleEndian::write_i32(&mut buf, val);
-    send_loop(fd, &mut buf, 4)?;
+    send_loop(fd, &buf, 4)?;
     Ok(())
 }
 
diff --git a/vsock_proxy/src/starter.rs b/vsock_proxy/src/starter.rs
index 7684425ea..ed78c3264 100644
--- a/vsock_proxy/src/starter.rs
+++ b/vsock_proxy/src/starter.rs
@@ -48,7 +48,7 @@ pub fn check_allowlist(
         // Obtain the remote server's IP address.
         let mut addrs = Proxy::parse_addr(remote_host, only_4, only_6)
             .map_err(|err| format!("Could not parse remote address: {}", err))?;
-        let remote_addr = *addrs.get(0).ok_or("No IP address found")?;
+        let remote_addr = *addrs.first().ok_or("No IP address found")?;
 
         for raw_service in services {
             let addr = raw_service["address"].as_str().ok_or("No address field")?;