Clippy lints

src/kernel/arch/x86_64/serial.rs

@@ -192,7 +192,7 @@ impl SerialPort {
     /// Get the baud rate divisor.
     pub fn get_divisor(&mut self) -> u16 {
         self.set_dlab(true);
-        let result: u16 = unsafe { self.base_port.read() as u16 | ((self.interrupt_enable.read() as u16) << 8) as u16};
+        let result: u16 = unsafe { self.base_port.read() as u16 | ((self.interrupt_enable.read() as u16) << 8)};
         self.set_dlab(false);
         result
     }
@@ -322,7 +322,7 @@ impl SerialPort {
     /// This OVERWRITES all held flags. To set specific flags, first store the current
     /// value using `get_modem_control()`, then modify the flags you want to change.
     pub fn set_modem_control(&mut self, control: BitFlags<ModemControl>) {
-        unsafe { self.modem_control.write(control.bits() as u8) };
+        unsafe { self.modem_control.write(control.bits()) };
     }
     /// Get the Modem Control register flags.
     pub fn get_modem_control(&mut self) -> BitFlags<ModemControl> {

src/kernel/log.rs

@@ -9,9 +9,11 @@ use lazy_static::lazy_static;
 use spin::Mutex;
 use crate::format;
 
+pub type LogDevice = dyn Fn(&str) + Send + Sync;
+
 pub struct Logger {
     pub level: LogLevel,
-    devices: Vec<Box<dyn Fn(&str) + Send + Sync>>
+    devices: Vec<Box<LogDevice>>
 }
 
 lazy_static! {