Remove warnings

arch/x86_64/src/acpi/mod.rs

@@ -2,9 +2,7 @@
 //! Code to parse the ACPI tables
 
 use core::intrinsics::{atomic_load, atomic_store};
-use x86::controlregs;
 
-use allocator::{HEAP_START, HEAP_SIZE};
 use memory::Frame;
 use paging::{entry, ActivePageTable, Page, PhysicalAddress, VirtualAddress};
 use start::kstart_ap;

arch/x86_64/src/paging/table.rs

@@ -4,7 +4,7 @@
 use core::marker::PhantomData;
 use core::ops::{Index, IndexMut};
 
-use memory::{allocate_frame, deallocate_frame};
+use memory::allocate_frame;
 
 use super::entry::*;
 use super::ENTRY_COUNT;

arch/x86_64/src/paging/temporary_page.rs

@@ -1,7 +1,7 @@
 //! Temporarily map a page
 //! From [Phil Opp's Blog](http://os.phil-opp.com/remap-the-kernel.html)
 
-use memory::{Frame, FrameAllocator};
+use memory::Frame;
 
 use super::{ActivePageTable, Page, VirtualAddress};
 use super::entry::EntryFlags;

arch/x86_64/src/start.rs

@@ -8,7 +8,7 @@ use allocator::{HEAP_START, HEAP_SIZE};
 use externs::memset;
 use gdt;
 use idt;
-use memory::{self, FrameAllocator};
+use memory;
 use paging::{self, entry, Page, VirtualAddress};
 
 /// Test of zero values in BSS.