diff --git a/src/teeos/mod.rs b/src/teeos/mod.rs
index daf4cf31fd1e8..7605764ab08e2 100644
--- a/src/teeos/mod.rs
+++ b/src/teeos/mod.rs
@@ -1337,8 +1337,7 @@ pub fn errno() -> c_int {
 pub fn CPU_COUNT_S(size: usize, cpuset: &cpu_set_t) -> c_int {
     let mut s: u32 = 0;
     let size_of_mask = size_of_val(&cpuset.bits[0]);
-
-    for i in cpuset.bits[..(size / size_of_mask)].iter() {
+    for i in &cpuset.bits[..(size / size_of_mask)] {
         s += i.count_ones();
     }
     s as c_int
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 06b68752459a7..926fd020df99e 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -4398,8 +4398,7 @@ f! {
         let mut s: u32 = 0;
         let cpuset_size = size_of::<cpuset_t>();
         let bitset_size = size_of::<c_long>();
-
-        for i in cpuset.__bits[..(cpuset_size / bitset_size)].iter() {
+        for i in &cpuset.__bits[..(cpuset_size / bitset_size)] {
             s += i.count_ones();
         }
         s as c_int
diff --git a/src/unix/cygwin/mod.rs b/src/unix/cygwin/mod.rs
index bfe1d8ff40529..a95d2d1c0c17d 100644
--- a/src/unix/cygwin/mod.rs
+++ b/src/unix/cygwin/mod.rs
@@ -1710,7 +1710,7 @@ f! {
     pub unsafe fn CPU_COUNT_S(size: usize, cpuset: &cpu_set_t) -> c_int {
         let mut s: u32 = 0;
         let size_of_mask = size_of_val(&cpuset.bits[0]);
-        for i in cpuset.bits[..(size / size_of_mask)].iter() {
+        for i in &cpuset.bits[..(size / size_of_mask)] {
             s += i.count_ones();
         }
         s as c_int
diff --git a/src/unix/hurd/mod.rs b/src/unix/hurd/mod.rs
index f09460cc5ba90..41547488a86c2 100644
--- a/src/unix/hurd/mod.rs
+++ b/src/unix/hurd/mod.rs
@@ -3544,7 +3544,7 @@ f! {
     pub unsafe fn CPU_COUNT_S(size: usize, cpuset: &cpu_set_t) -> c_int {
         let mut s: u32 = 0;
         let size_of_mask = size_of_val(&cpuset.__bits[0]);
-        for i in cpuset.__bits[..(size / size_of_mask)].iter() {
+        for i in &cpuset.__bits[..(size / size_of_mask)] {
             s += i.count_ones();
         }
         s as c_int
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index 192da7dd0cb3a..b8ebda3f61d7a 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -3467,7 +3467,7 @@ f! {
     pub unsafe fn CPU_COUNT_S(size: usize, cpuset: &cpu_set_t) -> c_int {
         let mut s: u32 = 0;
         let size_of_mask = size_of_val(&cpuset.__bits[0]);
-        for i in cpuset.__bits[..(size / size_of_mask)].iter() {
+        for i in &cpuset.__bits[..(size / size_of_mask)] {
             s += i.count_ones();
         }
         s as c_int