remove bare-metal dependency

Author: robamu

cortex-m/Cargo.toml

@@ -13,7 +13,6 @@ links = "cortex-m"  # prevent multiple versions of this crate to be linked toget
 rust-version = "1.85"
 
 [dependencies]
-bare-metal = { version = "0.2.4", features = ["const-fn"] }
 critical-section = "1.0.0"
 volatile-register = "0.2.2"
 bitfield = "0.13.2"

cortex-m/src/interrupt.rs

@@ -1,11 +1,11 @@
 //! Interrupts
 
-pub use bare_metal::{CriticalSection, Mutex, Nr};
 #[cfg(cortex_m)]
 use core::arch::asm;
 #[cfg(cortex_m)]
 use core::sync::atomic::{Ordering, compiler_fence};
 use cortex_m_macros::asm_cfg;
+use critical_section::CriticalSection;
 
 /// Trait for enums of external interrupt numbers.
 ///

cortex-m/src/lib.rs

@@ -97,7 +97,6 @@
 #[cfg(all(feature = "cm7-r0p1", not(armv7em)))]
 compile_error!("The feature \"cm7-r0p1\" is only compatible with the armv7em target");
 
-extern crate bare_metal;
 extern crate volatile_register;
 
 #[macro_use]