diff --git a/macros/src/codegen/hardware_tasks.rs b/macros/src/codegen/hardware_tasks.rs
index da0d6441c5..20b06cc7f7 100644
--- a/macros/src/codegen/hardware_tasks.rs
+++ b/macros/src/codegen/hardware_tasks.rs
@@ -99,7 +99,7 @@ pub fn codegen(
                 #[allow(non_snake_case)]
                 fn #name(#context: #name::Context) {
                     use rtic::Mutex as _;
-                    use rtic::MutexStruct as _;
+                    // use rtic::MutexStruct as _;
                     use rtic::mutex_prelude::*;
 
                     #(#stmts)*
diff --git a/macros/src/codegen/idle.rs b/macros/src/codegen/idle.rs
index 718ed2617e..23200b79c4 100644
--- a/macros/src/codegen/idle.rs
+++ b/macros/src/codegen/idle.rs
@@ -73,7 +73,7 @@ pub fn codegen(
             #[allow(non_snake_case)]
             fn #name(#context: #name::Context) -> ! {
                 use rtic::Mutex as _;
-                use rtic::MutexStruct as _;
+                // use rtic::MutexStruct as _;
                 use rtic::mutex_prelude::*;
 
                 #(#stmts)*
diff --git a/macros/src/codegen/shared_resources_struct.rs b/macros/src/codegen/shared_resources_struct.rs
index ababbd8a1b..eed8f896a1 100644
--- a/macros/src/codegen/shared_resources_struct.rs
+++ b/macros/src/codegen/shared_resources_struct.rs
@@ -177,7 +177,7 @@ pub fn codegen(
                 quote!(#ident_mut<#lt>),
                 max_ceiling,
                 quote!(self.priority()),
-                quote!(|| { #ident_mut::new() }),
+                quote!(#ident_mut::new ),
             ),
             quote!(
                 // Used by the lock-all API
diff --git a/macros/src/codegen/software_tasks.rs b/macros/src/codegen/software_tasks.rs
index 56779c7b61..9ccba71c2b 100644
--- a/macros/src/codegen/software_tasks.rs
+++ b/macros/src/codegen/software_tasks.rs
@@ -132,7 +132,7 @@ pub fn codegen(
                 #[allow(non_snake_case)]
                 fn #name(#context: #name::Context #(,#inputs)*) {
                     use rtic::Mutex as _;
-                    use rtic::MutexStruct as _;
+                    // use rtic::MutexStruct as _;
                     use rtic::mutex_prelude::*;
 
                     #(#stmts)*
diff --git a/macros/src/codegen/util.rs b/macros/src/codegen/util.rs
index 7a4c58ce32..f2ed62ad8d 100644
--- a/macros/src/codegen/util.rs
+++ b/macros/src/codegen/util.rs
@@ -67,7 +67,7 @@ pub fn impl_mutex_struct(
     let device = &extra.device;
     quote!(
         #(#cfgs)*
-        impl<'a> rtic::MutexStruct for #path<'a> {
+        impl<'a> rtic::Mutex for #path<'a> {
             type T = #ty;
 
             #[inline(always)]
diff --git a/src/export.rs b/src/export.rs
index 07a41d73d5..df4d86fcf8 100644
--- a/src/export.rs
+++ b/src/export.rs
@@ -171,7 +171,7 @@ pub unsafe fn lock<T, R>(
 #[cfg(armv7m)]
 #[inline(always)]
 pub unsafe fn lock_struct<T, R>(
-    ptr: impl Fn() -> T,
+    ptr: unsafe fn() -> T,
     priority: &Priority,
     ceiling: u8,
     nvic_prio_bits: u8,
@@ -237,7 +237,7 @@ pub unsafe fn lock<T, R>(
 #[cfg(not(armv7m))]
 #[inline(always)]
 pub unsafe fn lock_struct<T, R>(
-    ptr: impl Fn() -> T,
+    ptr: unsafe fn() -> T,
     priority: &Priority,
     ceiling: u8,
     _nvic_prio_bits: u8,
diff --git a/src/lib.rs b/src/lib.rs
index bb331e9fa8..78867d2710 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -105,11 +105,11 @@ impl<T> RacyCell<T> {
 
 unsafe impl<T> Sync for RacyCell<T> {}
 
-/// Should be moved to `rtic-core`
-pub trait MutexStruct {
-    /// Data protected by the mutex
-    type T;
+// /// Should be moved to `rtic-core`
+// pub trait MutexStruct {
+//     /// Data protected by the mutex
+//     type T;
 
-    /// Creates a critical section and grants temporary access to the protected data
-    fn lock<R>(&mut self, f: impl FnOnce(&mut Self::T) -> R) -> R;
-}
+//     /// Creates a critical section and grants temporary access to the protected data
+//     fn lock<R>(&mut self, f: impl FnOnce(&mut Self::T) -> R) -> R;
+// }