diff --git a/alxd/src/device/mod.rs b/alxd/src/device/mod.rs
index 9bfc9f0f08..2afdbdaf8a 100644
--- a/alxd/src/device/mod.rs
+++ b/alxd/src/device/mod.rs
@@ -1,4 +1,4 @@
-use std::{cmp, mem, ptr, slice, thread, time};
+use std::{ptr, thread, time};
 
 use netutils::setcfg;
 use syscall::error::{Error, EACCES, EINVAL, EIO, EWOULDBLOCK, Result};
diff --git a/alxd/src/main.rs b/alxd/src/main.rs
index 8fdca2719c..c38bb99682 100644
--- a/alxd/src/main.rs
+++ b/alxd/src/main.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)]
+#![allow(non_upper_case_globals)]
 #![allow(unused_parens)]
 #![feature(asm)]
 #![feature(concat_idents)]
diff --git a/e1000d/src/device.rs b/e1000d/src/device.rs
index bb926946a2..95e6bf2990 100644
--- a/e1000d/src/device.rs
+++ b/e1000d/src/device.rs
@@ -1,7 +1,7 @@
 use std::{cmp, mem, ptr, slice, thread, time};
 
 use netutils::setcfg;
-use syscall::error::{Error, EACCES, EWOULDBLOCK, Result};
+use syscall::error::{Error, EACCES, EINVAL, EWOULDBLOCK, Result};
 use syscall::flag::O_NONBLOCK;
 use syscall::io::Dma;
 use syscall::scheme::Scheme;
diff --git a/rtl8168d/src/device.rs b/rtl8168d/src/device.rs
index 0076fbe480..a85c0a8e25 100644
--- a/rtl8168d/src/device.rs
+++ b/rtl8168d/src/device.rs
@@ -1,7 +1,7 @@
 use std::{mem, thread};
 
 use netutils::setcfg;
-use syscall::error::{Error, EACCES, EWOULDBLOCK, Result};
+use syscall::error::{Error, EACCES, EINVAL, EWOULDBLOCK, Result};
 use syscall::flag::O_NONBLOCK;
 use syscall::io::{Dma, Mmio, Io, ReadOnly};
 use syscall::scheme::SchemeMut;
diff --git a/vesad/src/scheme.rs b/vesad/src/scheme.rs
index 34ea333d70..7d9fede491 100644
--- a/vesad/src/scheme.rs
+++ b/vesad/src/scheme.rs
@@ -2,7 +2,7 @@ use std::collections::BTreeMap;
 use std::{mem, slice, str};
 
 use orbclient::{Event, EventOption};
-use syscall::{Result, Error, EACCES, EBADF, ENOENT, O_NONBLOCK, SchemeMut};
+use syscall::{Result, Error, EACCES, EBADF, EINVAL, ENOENT, O_NONBLOCK, SchemeMut};
 
 use display::Display;
 use screen::{Screen, GraphicScreen, TextScreen};