From e8ea848785d723e6b4e963230217a5eea854a23a Mon Sep 17 00:00:00 2001
From: Amanieu d'Antras <amanieu@gmail.com>
Date: Sat, 23 Dec 2017 08:45:25 +0100
Subject: [PATCH] Fix argument order for __sync_val_compare_and_swap

---
 src/arm_linux.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/arm_linux.rs b/src/arm_linux.rs
index a48a969..2291edf 100644
--- a/src/arm_linux.rs
+++ b/src/arm_linux.rs
@@ -71,7 +71,7 @@ unsafe fn atomic_rmw<T, F: Fn(u32) -> u32>(ptr: *mut T, f: F) -> u32 {
 }
 
 // Generic atomic compare-exchange operation
-unsafe fn atomic_cmpxchg<T>(oldval: u32, newval: u32, ptr: *mut T) -> u32 {
+unsafe fn atomic_cmpxchg<T>(ptr: *mut T, oldval: u32, newval: u32) -> u32 {
     let aligned_ptr = align_ptr(ptr);
     let (shift, mask) = get_shift_mask(ptr);
 
@@ -99,8 +99,8 @@ macro_rules! atomic_rmw {
 macro_rules! atomic_cmpxchg {
     ($name:ident, $ty:ty) => {
         #[cfg_attr(not(feature = "mangled-names"), no_mangle)]
-        pub unsafe extern "C" fn $name(oldval: $ty, newval: $ty, ptr: *mut $ty) -> $ty {
-            atomic_cmpxchg(oldval as u32, newval as u32, ptr) as $ty
+        pub unsafe extern "C" fn $name(ptr: *mut $ty, oldval: $ty, newval: $ty) -> $ty {
+            atomic_cmpxchg(ptr, oldval as u32, newval as u32) as $ty
         }
     }
 }