misc: net_util: drop extern crate, use modern rust

This commit is part of a series of similar commits.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com

net_util/src/ctrl_queue.rs

@@ -2,6 +2,7 @@
 //
 // SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
 
+use log::{error, info, warn};
 use thiserror::Error;
 use virtio_bindings::virtio_net::{
     VIRTIO_NET_CTRL_GUEST_OFFLOADS, VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET, VIRTIO_NET_CTRL_MQ,

net_util/src/lib.rs

@@ -5,9 +5,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the THIRD-PARTY file.
 
-#[macro_use]
-extern crate log;
-
 mod ctrl_queue;
 mod mac;
 mod open_tap;

net_util/src/mac.rs

@@ -8,6 +8,7 @@
 use std::str::FromStr;
 use std::{fmt, io};
 
+use log::error;
 use serde::de::{Deserialize, Deserializer, Error};
 use serde::ser::{Serialize, Serializer};
 

net_util/src/open_tap.rs

@@ -6,6 +6,7 @@ use std::net::IpAddr;
 use std::path::Path;
 use std::{fs, io};
 
+use log::warn;
 use thiserror::Error;
 
 use super::{MacAddr, Tap, TapError, vnet_hdr_len};

net_util/src/queue_pair.rs

@@ -8,6 +8,7 @@ use std::os::unix::io::{AsRawFd, RawFd};
 use std::sync::Arc;
 use std::sync::atomic::{AtomicU64, Ordering};
 
+use log::{error, info};
 use rate_limiter::{RateLimiter, TokenType};
 use thiserror::Error;
 use virtio_queue::{Queue, QueueOwnedT, QueueT};