diff --git a/sha1/src/compress.rs b/sha1/src/compress.rs
index 09f24f1f0..66fa3a74f 100644
--- a/sha1/src/compress.rs
+++ b/sha1/src/compress.rs
@@ -15,9 +15,7 @@ cfg_if::cfg_if! {
         #[cfg(feature = "asm")]
         mod soft {
             pub(crate) fn compress(state: &mut [u32; 5], blocks: &[[u8; 64]]) {
-                for block in blocks {
-                    sha1_asm::compress(state, block);
-                }
+                sha1_asm::compress(state, blocks);
             }
         }
         mod x86;
diff --git a/sha1/src/compress/aarch64.rs b/sha1/src/compress/aarch64.rs
index 4edd588ef..a704df4f9 100644
--- a/sha1/src/compress/aarch64.rs
+++ b/sha1/src/compress/aarch64.rs
@@ -7,13 +7,11 @@
 /// > Enable SHA1 and SHA256 support.
 cpufeatures::new!(sha2_hwcap, "sha2");
 
-pub fn compress(state: &mut [u32; 5], blocks: &[u8; 64]) {
+pub fn compress(state: &mut [u32; 5], blocks: &[[u8; 64]]) {
     // TODO: Replace with https://github.com/rust-lang/rfcs/pull/2725
     // after stabilization
     if sha2_hwcap::get() {
-        for block in blocks {
-            sha1_asm::compress(state, block);
-        }
+        sha1_asm::compress(state, blocks);
     } else {
         super::soft::compress(state, blocks);
     }
diff --git a/sha1/src/consts.rs b/sha1/src/consts.rs
index 277576ac9..16908de1d 100644
--- a/sha1/src/consts.rs
+++ b/sha1/src/consts.rs
@@ -1,17 +1,13 @@
 #![allow(clippy::unreadable_literal)]
 
 pub const STATE_LEN: usize = 5;
-
-#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))]
 pub const BLOCK_LEN: usize = 16;
 
-#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))]
+/// Magic constants necessary for SHA-1.
 pub const K0: u32 = 0x5A827999u32;
-#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))]
 pub const K1: u32 = 0x6ED9EBA1u32;
-#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))]
 pub const K2: u32 = 0x8F1BBCDCu32;
-#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))]
 pub const K3: u32 = 0xCA62C1D6u32;
 
+/// Magic reset constants necessary for SHA-1.
 pub const H: [u32; STATE_LEN] = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0];