runtime-rs: Fix needless_borrow warnings

As we bumped the rust toolchain to 1.66.0, some new warnings have been
raised due to needless_borrow.

Let's fix them all here.

For more info about the warnings, please, take a look at:
https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

src/runtime-rs/crates/resource/src/network/utils/link/create.rs

@@ -119,7 +119,7 @@ pub fn create_link(name: &str, link_type: LinkType, queues: usize) -> Result<()>
 
 fn create_queue(name: &str, flags: libc::c_int) -> Result<(File, String)> {
     let path = Path::new(DEVICE_PATH);
-    let file = OpenOptions::new().read(true).write(true).open(&path)?;
+    let file = OpenOptions::new().read(true).write(true).open(path)?;
     let mut req = CreateLinkReq::from_name(name)?;
     unsafe {
         req.set_raw_flags(flags as libc::c_short);

src/runtime-rs/crates/resource/src/network/utils/netns.rs

@@ -20,7 +20,7 @@ impl NetnsGuard {
             let current_netns_path = format!("/proc/{}/task/{}/ns/{}", getpid(), gettid(), "net");
             let old_netns = File::open(&current_netns_path)
                 .with_context(|| format!("open current netns path {}", &current_netns_path))?;
-            let new_netns = File::open(&new_netns_path)
+            let new_netns = File::open(new_netns_path)
                 .with_context(|| format!("open new netns path {}", &new_netns_path))?;
             setns(new_netns.as_raw_fd(), CloneFlags::CLONE_NEWNET)
                 .with_context(|| "set netns to new netns")?;

src/runtime-rs/crates/resource/src/share_fs/utils.rs

@@ -38,7 +38,7 @@ pub(crate) fn share_to_guest(
     // to remount the read only dir mount point directly.
     if readonly {
         let dst = do_get_host_path(target, sid, cid, is_volume, true);
-        mount::bind_remount(&dst, readonly).context("bind remount readonly")?;
+        mount::bind_remount(dst, readonly).context("bind remount readonly")?;
     }
 
     Ok(do_get_guest_path(target, cid, is_volume, is_rafs))

src/runtime-rs/crates/resource/src/share_fs/virtio_fs_share_mount.rs

@@ -173,11 +173,11 @@ impl ShareFsMount for VirtiofsShareMount {
     async fn upgrade_to_rw(&self, file_name: &str) -> Result<()> {
         // Remount readonly directory with readwrite permission
         let host_dest = do_get_host_path(file_name, &self.id, "", true, true);
-        bind_remount(&host_dest, false)
+        bind_remount(host_dest, false)
             .context("remount readonly directory with readwrite permission")?;
         // Remount readwrite directory with readwrite permission
         let host_dest = do_get_host_path(file_name, &self.id, "", true, false);
-        bind_remount(&host_dest, false)
+        bind_remount(host_dest, false)
             .context("remount readwrite directory with readwrite permission")?;
         Ok(())
     }
@@ -185,11 +185,11 @@ impl ShareFsMount for VirtiofsShareMount {
     async fn downgrade_to_ro(&self, file_name: &str) -> Result<()> {
         // Remount readwrite directory with readonly permission
         let host_dest = do_get_host_path(file_name, &self.id, "", true, false);
-        bind_remount(&host_dest, true)
+        bind_remount(host_dest, true)
             .context("remount readwrite directory with readonly permission")?;
         // Remount readonly directory with readonly permission
         let host_dest = do_get_host_path(file_name, &self.id, "", true, true);
-        bind_remount(&host_dest, true)
+        bind_remount(host_dest, true)
             .context("remount readonly directory with readonly permission")?;
         Ok(())
     }

src/runtime-rs/crates/service/src/manager.rs

@@ -55,7 +55,7 @@ async fn send_event(
         .stdin(Stdio::piped())
         .stdout(Stdio::piped())
         .stderr(Stdio::piped())
-        .args(&[
+        .args([
             "--address",
             &address,
             "publish",

src/runtime-rs/crates/shim/src/shim_delete.rs

@@ -40,7 +40,7 @@ impl ShimExecutor {
         let trim_path = address.strip_prefix("unix://").context("trim path")?;
         let file_path = Path::new("/").join(trim_path);
         let file_path = file_path.as_path();
-        if std::fs::metadata(&file_path).is_ok() {
+        if std::fs::metadata(file_path).is_ok() {
             info!(sl!(), "remote socket path: {:?}", &file_path);
             fs::remove_file(file_path).ok();
         }