fix thumbv6m build

japaric · japaric · commit 47623cebbbef · 2018-01-11T19:16:52.000+01:00
diff --git a/src/peripheral/nvic.rs b/src/peripheral/nvic.rs
@@ -103,7 +103,7 @@ impl NVIC {
         #[cfg(armv6m)]
         {
             // NOTE(unsafe) atomic read with no side effects
-            let ipr_n = (*Self::ptr()).ipr[Self::ipr_index(&interrupt)].read();
+            let ipr_n = unsafe { (*Self::ptr()).ipr[Self::ipr_index(&interrupt)].read() };
             let prio = (ipr_n >> Self::ipr_shift(&interrupt)) & 0x000000ff;
             prio as u8
         }

Original file line number	Diff line number	Diff line change
`@@ -103,7 +103,7 @@ impl NVIC {`
`103`	`103`	`#[cfg(armv6m)]`
`104`	`104`	`{`
`105`	`105`	`// NOTE(unsafe) atomic read with no side effects`
`106`		`- let ipr_n = (*Self::ptr()).ipr[Self::ipr_index(&interrupt)].read();`
	`106`	`+ let ipr_n = unsafe { (*Self::ptr()).ipr[Self::ipr_index(&interrupt)].read() };`
`107`	`107`	`let prio = (ipr_n >> Self::ipr_shift(&interrupt)) & 0x000000ff;`
`108`	`108`	`prio as u8`
`109`	`109`	`}`