From 00bfb63607e741f0a138d56a8204eb291aef6215 Mon Sep 17 00:00:00 2001
From: Rob Bradford <robert.bradford@intel.com>
Date: Tue, 19 Oct 2021 15:01:42 +0100
Subject: [PATCH] net_util: Remove some unneeded use of mut

As identified by the new beta clippy.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
---
 net_util/src/lib.rs        |  4 ++--
 net_util/src/queue_pair.rs | 23 +++++++++--------------
 2 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/net_util/src/lib.rs b/net_util/src/lib.rs
index 54c98f63f..434174727 100644
--- a/net_util/src/lib.rs
+++ b/net_util/src/lib.rs
@@ -121,7 +121,7 @@ pub fn unregister_listener(
 }
 
 pub fn build_net_config_space(
-    mut config: &mut VirtioNetConfig,
+    config: &mut VirtioNetConfig,
     mac: MacAddr,
     num_queues: usize,
     avail_features: &mut u64,
@@ -129,7 +129,7 @@ pub fn build_net_config_space(
     config.mac.copy_from_slice(mac.get_bytes());
     *avail_features |= 1 << VIRTIO_NET_F_MAC;
 
-    build_net_config_space_with_mq(&mut config, num_queues, avail_features);
+    build_net_config_space_with_mq(config, num_queues, avail_features);
 }
 
 pub fn build_net_config_space_with_mq(
diff --git a/net_util/src/queue_pair.rs b/net_util/src/queue_pair.rs
index 5195b1db5..59134205d 100644
--- a/net_util/src/queue_pair.rs
+++ b/net_util/src/queue_pair.rs
@@ -268,19 +268,16 @@ pub struct NetQueuePair {
 }
 
 impl NetQueuePair {
-    pub fn process_tx(&mut self, mut queue: &mut Queue) -> Result<bool, NetQueuePairError> {
+    pub fn process_tx(&mut self, queue: &mut Queue) -> Result<bool, NetQueuePairError> {
         let mem = self
             .mem
             .as_ref()
             .ok_or(NetQueuePairError::NoMemoryConfigured)
             .map(|m| m.memory())?;
 
-        let tx_tap_retry = self.tx.process_desc_chain(
-            &mem,
-            &mut self.tap,
-            &mut queue,
-            &mut self.tx_rate_limiter,
-        )?;
+        let tx_tap_retry =
+            self.tx
+                .process_desc_chain(&mem, &mut self.tap, queue, &mut self.tx_rate_limiter)?;
 
         // We got told to try again when writing to the tap. Wait for the TAP to be writable
         if tx_tap_retry && !self.tx_tap_listening {
@@ -317,19 +314,17 @@ impl NetQueuePair {
         Ok(queue.needs_notification(&mem, queue.next_used))
     }
 
-    pub fn process_rx(&mut self, mut queue: &mut Queue) -> Result<bool, NetQueuePairError> {
+    pub fn process_rx(&mut self, queue: &mut Queue) -> Result<bool, NetQueuePairError> {
         let mem = self
             .mem
             .as_ref()
             .ok_or(NetQueuePairError::NoMemoryConfigured)
             .map(|m| m.memory())?;
 
-        self.rx_desc_avail = !self.rx.process_desc_chain(
-            &mem,
-            &mut self.tap,
-            &mut queue,
-            &mut self.rx_rate_limiter,
-        )?;
+        self.rx_desc_avail =
+            !self
+                .rx
+                .process_desc_chain(&mem, &mut self.tap, queue, &mut self.rx_rate_limiter)?;
         let rate_limit_reached = self
             .rx_rate_limiter
             .as_ref()