From b756dd59ebdaeeab8c3769990b2b45845a66188e Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Wed, 17 Aug 2016 16:54:48 -0600
Subject: [PATCH] Remove warnings

---
 arch/x86_64/src/acpi/mod.rs              | 2 --
 arch/x86_64/src/paging/table.rs          | 2 +-
 arch/x86_64/src/paging/temporary_page.rs | 2 +-
 arch/x86_64/src/start.rs                 | 2 +-
 kernel/scheme/debug.rs                   | 8 ++++----
 kernel/syscall/mod.rs                    | 2 +-
 6 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/x86_64/src/acpi/mod.rs b/arch/x86_64/src/acpi/mod.rs
index 2b59abe..5929aa7 100644
--- a/arch/x86_64/src/acpi/mod.rs
+++ b/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;
diff --git a/arch/x86_64/src/paging/table.rs b/arch/x86_64/src/paging/table.rs
index 04acb36..6fb4dd0 100644
--- a/arch/x86_64/src/paging/table.rs
+++ b/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;
diff --git a/arch/x86_64/src/paging/temporary_page.rs b/arch/x86_64/src/paging/temporary_page.rs
index 38383e8..3947647 100644
--- a/arch/x86_64/src/paging/temporary_page.rs
+++ b/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;
diff --git a/arch/x86_64/src/start.rs b/arch/x86_64/src/start.rs
index 91a7fab..a6d44f8 100644
--- a/arch/x86_64/src/start.rs
+++ b/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.
diff --git a/kernel/scheme/debug.rs b/kernel/scheme/debug.rs
index 8abb059..43882ae 100644
--- a/kernel/scheme/debug.rs
+++ b/kernel/scheme/debug.rs
@@ -5,7 +5,7 @@ use super::Scheme;
 pub struct DebugScheme;
 
 impl Scheme for DebugScheme {
-    fn open(&mut self, path: &[u8], flags: usize) -> Result<usize> {
+    fn open(&mut self, path: &[u8], _flags: usize) -> Result<usize> {
         println!("DebugScheme::open: {}", unsafe { str::from_utf8_unchecked(path) });
         Ok(0)
     }
@@ -13,21 +13,21 @@ impl Scheme for DebugScheme {
     /// Read the file `number` into the `buffer`
     ///
     /// Returns the number of bytes read
-    fn read(&mut self, file: usize, buffer: &mut [u8]) -> Result<usize> {
+    fn read(&mut self, _file: usize, _buffer: &mut [u8]) -> Result<usize> {
         Ok(0)
     }
 
     /// Write the `buffer` to the `file`
     ///
     /// Returns the number of bytes written
-    fn write(&mut self, file: usize, buffer: &[u8]) -> Result<usize> {
+    fn write(&mut self, _file: usize, buffer: &[u8]) -> Result<usize> {
         //TODO: Write bytes, do not convert to str
         print!("{}", unsafe { str::from_utf8_unchecked(buffer) });
         Ok(buffer.len())
     }
 
     /// Close the file `number`
-    fn close(&mut self, file: usize) -> Result<()> {
+    fn close(&mut self, _file: usize) -> Result<()> {
         Ok(())
     }
 }
diff --git a/kernel/syscall/mod.rs b/kernel/syscall/mod.rs
index 2107d4f..1cf0f58 100644
--- a/kernel/syscall/mod.rs
+++ b/kernel/syscall/mod.rs
@@ -92,7 +92,7 @@ pub fn convert_slice_mut<T>(ptr: *mut T, len: usize) -> Result<&'static mut [T]>
     Ok(unsafe { slice::from_raw_parts_mut(ptr, len) })
 }
 
-pub fn handle(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize) -> ::core::result::Result<usize, usize> {
+pub fn handle(a: usize, b: usize, c: usize, d: usize, e: usize, _f: usize) -> ::core::result::Result<usize, usize> {
     match Call::from(a) {
         Call::Exit => exit(b),
         Call::Read => read(b, convert_slice_mut(c as *mut u8, d)?),