remove dead code in waker

embassy-stm32f4/src/lib.rs

@@ -308,56 +308,6 @@ compile_error!(
 pub use stm32f4xx_hal as hal;
 pub use stm32f4xx_hal::stm32 as pac;
 
-/// Creates a new interrupt waking a [`Waker`].
-///
-/// As this interrupt will be declared in this macro, it can't be used for anything else.
-///
-/// # Examples
-///
-/// This macro is useful for implementing [`Future::poll`]:
-///
-/// ```
-/// fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-///     if self.is_ready() {
-///         Poll::Ready(())
-///     } else {
-///         waker_interrupt!(TIM2, cx.waker().clone());
-///         Poll::Pending
-///     }
-/// }
-/// ```
-///
-/// [`Waker`]: core::task::Waker
-/// [`Future::poll`]: core::future::Future::poll
-// macro_rules! waker_interrupt {
-//     ($INT:ident, $waker:expr) => {{
-//         use core::sync::atomic::{self, Ordering};
-//         use core::task::Waker;
-//         use stm32f4xx_hal::pac::{interrupt, Interrupt, NVIC};
-//
-//         static mut WAKER: Option<Waker> = None;
-//
-//         #[interrupt]
-//         fn $INT() {
-//             // Safety: This context is disabled while the lower priority context accesses WAKER
-//             if let Some(waker) = unsafe { WAKER.as_ref() } {
-//                 waker.wake_by_ref();
-//
-//                 NVIC::mask(Interrupt::$INT);
-//             }
-//         }
-//
-//         NVIC::mask(Interrupt::$INT);
-//         atomic::compiler_fence(Ordering::Acquire);
-//         // Safety: The other relevant context, the interrupt, is disabled
-//         unsafe { WAKER = Some($waker) }
-//         NVIC::unpend(Interrupt::$INT);
-//         atomic::compiler_fence(Ordering::Release);
-//         // Safety: This is the end of a mask-based critical section
-//         unsafe { NVIC::unmask(Interrupt::$INT) }
-//     }};
-// }
-
 // This mod MUST go first, so that the others see its macros.
 pub(crate) mod fmt;