Rollup merge of #127996 - ian-h-chamberlain:fix/horizon-warnings-unsafe-in-unsafe, r=tgross35

Clean up warnings + `unsafe_op_in_unsafe_fn` when building std for armv6k-nintendo-3ds

See #127747

ping `@AzureMarker` `@Meziu`

I could only find one instance needing an extra `unsafe` that was not also shared with many other `unix` targets (presumably these will get covered in larger sweeping changes, I didn't want to introduce churn that would potentially conflict with those). The one codepath I found is shared with `vita` however, so also pinging `@nikarh` `@pheki` `@zetanumbers` just to make sure they're aware of this change.

Also removed one unused import from `process_unsupported` which should simply fix the warning for any target that uses it.

2 files changed, 1 insertions, 2 deletions

diff --git a/library/std/src/sys/pal/unix/alloc.rs b/library/std/src/sys/pal/unix/alloc.rs
index eb3a57c212b..625ba5247f1 100644
--- a/library/std/src/sys/pal/unix/alloc.rs
+++ b/library/std/src/sys/pal/unix/alloc.rs
@@ -67,7 +67,7 @@ cfg_if::cfg_if! {
     ))] {
         #[inline]
         unsafe fn aligned_malloc(layout: &Layout) -> *mut u8 {
-            libc::memalign(layout.align(), layout.size()) as *mut u8
+            unsafe { libc::memalign(layout.align(), layout.size()) as *mut u8 }
         }
     } else {
         #[inline]
diff --git a/library/std/src/sys/pal/unix/process/process_unsupported.rs b/library/std/src/sys/pal/unix/process/process_unsupported.rs
index 33d359d3f84..90d53464c83 100644
--- a/library/std/src/sys/pal/unix/process/process_unsupported.rs
+++ b/library/std/src/sys/pal/unix/process/process_unsupported.rs
@@ -1,4 +1,3 @@
-use crate::fmt;
 use crate::io;
 use crate::num::NonZero;
 use crate::sys::pal::unix::unsupported::*;