take AsFd by value

Author: SteveLauC

src/sys/event.rs

@@ -268,7 +268,7 @@ impl KEvent {
 }
 
 pub fn kevent<Fd: AsFd>(
-    kq: &Fd,
+    kq: Fd,
     changelist: &[KEvent],
     eventlist: &mut [KEvent],
     timeout_ms: usize,
@@ -294,7 +294,7 @@ type type_of_nchanges = c_int;
 type type_of_nchanges = size_t;
 
 pub fn kevent_ts<Fd: AsFd>(
-    kq: &Fd,
+    kq: Fd,
     changelist: &[KEvent],
     eventlist: &mut [KEvent],
     timeout_opt: Option<timespec>,