Fix or surpress several warnings on rust beta

rp2040-hal-examples/Cargo.toml

@@ -42,3 +42,6 @@ static_cell = "2.1.0"
 
 [target.'cfg( target_arch = "arm" )'.dependencies]
 embassy-executor = {version = "0.5", features = ["arch-cortex-m", "executor-thread"]}
+
+[lints.clippy]
+too_long_first_doc_paragraph = "allow"

rp2040-hal-examples/src/bin/alloc.rs

@@ -65,7 +65,7 @@ fn main() -> ! {
         use core::mem::MaybeUninit;
         const HEAP_SIZE: usize = 1024;
         static mut HEAP: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
-        unsafe { ALLOCATOR.init(HEAP.as_ptr() as usize, HEAP_SIZE) }
+        unsafe { ALLOCATOR.init(core::ptr::addr_of_mut!(HEAP) as usize, HEAP_SIZE) }
     }
 
     // Grab our singleton objects

rp2040-hal-examples/src/bin/gpio_irq_example.rs

@@ -149,6 +149,7 @@ fn main() -> ! {
     }
 }
 
+#[allow(static_mut_refs)] // See https://github.com/rust-embedded/cortex-m/pull/561
 #[interrupt]
 fn IO_IRQ_BANK0() {
     // The `#[interrupt]` attribute covertly converts this to `&'static mut Option<LedAndButton>`

rp2040-hal-examples/src/bin/multicore_fifo_blink.rs

@@ -115,6 +115,7 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
+    #[allow(static_mut_refs)]
     let _test = core1.spawn(unsafe { &mut CORE1_STACK.mem }, move || {
         core1_task(sys_freq)
     });

rp2040-hal-examples/src/bin/multicore_polyblink.rs

@@ -105,6 +105,7 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
+    #[allow(static_mut_refs)]
     core1
         .spawn(unsafe { &mut CORE1_STACK.mem }, move || {
             // Get the second core's copy of the `CorePeripherals`, which are per-core.

rp2040-hal-examples/src/bin/pwm_irq_input.rs

@@ -47,7 +47,7 @@ pub static BOOT2: [u8; 256] = rp2040_boot2::BOOT_LOADER_GENERIC_03H;
 
 /// 50 Hz PWM servo signals have a pulse width between 1000 us and 2000 us with
 /// 1500 us as the centre point. us is the abbreviation for micro seconds.
-
+///
 /// The PWM threshold value for turning off the LED in us
 const LOW_US: u16 = 1475;
 
@@ -60,7 +60,7 @@ const XTAL_FREQ_HZ: u32 = 12_000_000u32;
 
 /// Pin types quickly become very long!
 /// We'll create some type aliases using `type` to help with that
-
+///
 /// This pin will be our output - it will drive an LED if you run this on a Pico
 type LedPin = gpio::Pin<gpio::bank0::Gpio25, gpio::FunctionSio<gpio::SioOutput>, gpio::PullNone>;
 
@@ -164,6 +164,7 @@ fn main() -> ! {
     }
 }
 
+#[allow(static_mut_refs)] // See https://github.com/rust-embedded/cortex-m/pull/561
 #[interrupt]
 fn IO_IRQ_BANK0() {
     // The `#[interrupt]` attribute covertly converts this to `&'static mut Option<LedAndInput>`

rp2040-hal-examples/src/bin/rtc_irq_example.rs

@@ -144,6 +144,7 @@ fn main() -> ! {
 }
 
 #[allow(non_snake_case)]
+#[allow(static_mut_refs)] // See https://github.com/rust-embedded/cortex-m/pull/561
 #[interrupt]
 fn RTC_IRQ() {
     // The `#[interrupt]` attribute covertly converts this to `&'static mut Option<LedAndRtc>`

rp2040-hal-examples/src/bin/vector_table.rs

@@ -17,6 +17,7 @@ use rp2040_hal as hal;
 
 // A shorter alias for the Peripheral Access Crate
 use hal::pac;
+use static_cell::ConstStaticCell;
 
 // Some traits we need
 use core::cell::RefCell;
@@ -29,7 +30,7 @@ use rp2040_hal::timer::Alarm;
 use rp2040_hal::vector_table::VectorTable;
 
 // Memory that will hold our vector table in RAM
-static mut RAM_VTABLE: VectorTable = VectorTable::new();
+static RAM_VTABLE: ConstStaticCell<VectorTable> = ConstStaticCell::new(VectorTable::new());
 
 // Give our LED and Alarm a type alias to make it easier to refer to them
 type LedAndAlarm = (
@@ -38,7 +39,7 @@ type LedAndAlarm = (
 );
 
 // Place our LED and Alarm type in a static variable, so we can access it from interrupts
-static mut LED_AND_ALARM: Mutex<RefCell<Option<LedAndAlarm>>> = Mutex::new(RefCell::new(None));
+static LED_AND_ALARM: Mutex<RefCell<Option<LedAndAlarm>>> = Mutex::new(RefCell::new(None));
 
 // Period that each of the alarms will be set for - 1 second and 300ms respectively
 const SLOW_BLINK_INTERVAL_US: MicrosDurationU32 = MicrosDurationU32::secs(1);
@@ -76,12 +77,12 @@ fn main() -> ! {
 
     // Need to make a reference to the Peripheral Base at this scope to avoid confusing the borrow checker
     let ppb = &mut pac.PPB;
-    unsafe {
-        // Copy the vector table that cortex_m_rt produced into the RAM vector table
-        RAM_VTABLE.init(ppb);
-        // Replace the function that is called on Alarm0 interrupts with a new one
-        RAM_VTABLE.register_handler(pac::Interrupt::TIMER_IRQ_0 as usize, timer_irq0_replacement);
-    }
+
+    let ram_vtable = RAM_VTABLE.take();
+    // Copy the vector table that cortex_m_rt produced into the RAM vector table
+    ram_vtable.init(ppb);
+    // Replace the function that is called on Alarm0 interrupts with a new one
+    ram_vtable.register_handler(pac::Interrupt::TIMER_IRQ_0 as usize, timer_irq0_replacement);
 
     // Configure the clocks
     let clocks = hal::clocks::init_clocks_and_plls(
@@ -117,9 +118,7 @@ fn main() -> ! {
         // Enable generating an interrupt on alarm
         alarm.enable_interrupt();
         // Move alarm into ALARM, so that it can be accessed from interrupts
-        unsafe {
-            LED_AND_ALARM.borrow(cs).replace(Some((led_pin, alarm)));
-        }
+        LED_AND_ALARM.borrow(cs).replace(Some((led_pin, alarm)));
     });
     // Unmask the timer0 IRQ so that it will generate an interrupt
     unsafe {
@@ -130,7 +129,7 @@ fn main() -> ! {
     delay.delay_ms(5000);
     unsafe {
         critical_section::with(|_| {
-            RAM_VTABLE.activate(ppb);
+            ram_vtable.activate(ppb);
         });
     }
 
@@ -146,7 +145,7 @@ fn main() -> ! {
 fn TIMER_IRQ_0() {
     critical_section::with(|cs| {
         // Temporarily take our LED_AND_ALARM
-        let ledalarm = unsafe { LED_AND_ALARM.borrow(cs).take() };
+        let ledalarm = LED_AND_ALARM.borrow(cs).take();
         if let Some((mut led, mut alarm)) = ledalarm {
             // Clear the alarm interrupt or this interrupt service routine will keep firing
             alarm.clear_interrupt();
@@ -155,31 +154,27 @@ fn TIMER_IRQ_0() {
             // Blink the LED so we know we hit this interrupt
             led.toggle().unwrap();
             // Return LED_AND_ALARM into our static variable
-            unsafe {
-                LED_AND_ALARM
-                    .borrow(cs)
-                    .replace_with(|_| Some((led, alarm)));
-            }
+            LED_AND_ALARM
+                .borrow(cs)
+                .replace_with(|_| Some((led, alarm)));
         }
     });
 }
 
 // This is the function we will use to replace TIMER_IRQ_0 in our RAM Vector Table
 extern "C" fn timer_irq0_replacement() {
     critical_section::with(|cs| {
-        let ledalarm = unsafe { LED_AND_ALARM.borrow(cs).take() };
+        let ledalarm = LED_AND_ALARM.borrow(cs).take();
         if let Some((mut led, mut alarm)) = ledalarm {
             // Clear the alarm interrupt or this interrupt service routine will keep firing
             alarm.clear_interrupt();
             // Schedule a new alarm after FAST_BLINK_INTERVAL_US have passed (300 milliseconds)
             let _ = alarm.schedule(FAST_BLINK_INTERVAL_US);
             led.toggle().unwrap();
             // Return LED_AND_ALARM into our static variable
-            unsafe {
-                LED_AND_ALARM
-                    .borrow(cs)
-                    .replace_with(|_| Some((led, alarm)));
-            }
+            LED_AND_ALARM
+                .borrow(cs)
+                .replace_with(|_| Some((led, alarm)));
         }
     });
 }

rp2040-hal/src/adc.rs

@@ -813,14 +813,14 @@ impl<'a, Word> AdcFifo<'a, Word> {
     }
 }
 
-impl<'a> AdcFifo<'a, u16> {
+impl AdcFifo<'_, u16> {
     /// Read a single value from the fifo (u16 version, not shifted)
     pub fn read(&mut self) -> u16 {
         self.read_from_fifo()
     }
 }
 
-impl<'a> AdcFifo<'a, u8> {
+impl AdcFifo<'_, u8> {
     /// Read a single value from the fifo (u8 version, shifted)
     ///
     /// Also see [`AdcFifoBuilder::shift_8bit`].

rp2040-hal/src/async_utils.rs

@@ -128,8 +128,8 @@ where
         r
     }
 }
-impl<'periph, Periph, PFn, EnIrqFn, CancelFn, OutputTy> Drop
-    for CancellablePollFn<'periph, Periph, PFn, EnIrqFn, CancelFn, OutputTy>
+impl<Periph, PFn, EnIrqFn, CancelFn, OutputTy> Drop
+    for CancellablePollFn<'_, Periph, PFn, EnIrqFn, CancelFn, OutputTy>
 where
     Periph: sealed::Wakeable,
     CancelFn: FnMut(&mut Periph),

rp2040-hal/src/gpio/mod.rs

@@ -947,8 +947,8 @@ where
     }
 }
 
-impl<'a, I: PinId, F: func::Function, P: PullType> embedded_hal_0_2::digital::v2::InputPin
-    for AsInputPin<'a, I, F, P>
+impl<I: PinId, F: func::Function, P: PullType> embedded_hal_0_2::digital::v2::InputPin
+    for AsInputPin<'_, I, F, P>
 {
     type Error = core::convert::Infallible;
 
@@ -1527,7 +1527,7 @@ mod eh1 {
         }
     }
 
-    impl<'a, I, F, P> ErrorType for AsInputPin<'a, I, F, P>
+    impl<I, F, P> ErrorType for AsInputPin<'_, I, F, P>
     where
         I: PinId,
         F: func::Function,
@@ -1536,7 +1536,7 @@ mod eh1 {
         type Error = Error;
     }
 
-    impl<'a, I: PinId, F: func::Function, P: PullType> InputPin for AsInputPin<'a, I, F, P> {
+    impl<I: PinId, F: func::Function, P: PullType> InputPin for AsInputPin<'_, I, F, P> {
         fn is_high(&mut self) -> Result<bool, Self::Error> {
             Ok(self.0._is_high())
         }

rp2040-hal/src/multicore.rs

@@ -141,7 +141,7 @@ pub struct Core<'p> {
     )>,
 }
 
-impl<'p> Core<'p> {
+impl Core<'_> {
     /// Get the id of this core.
     pub fn id(&self) -> u8 {
         match self.inner {

rp2040-hal/src/pio.rs

@@ -1243,7 +1243,7 @@ impl<'sm, P: PIOExt, SM: StateMachineIndex> Synchronize<'sm, (P, SM)> {
     }
 }
 
-impl<'sm, SM: ValidStateMachine> Drop for Synchronize<'sm, SM> {
+impl<SM: ValidStateMachine> Drop for Synchronize<'_, SM> {
     fn drop(&mut self) {
         // Restart the clocks of all state machines specified by the mask.
         // Bits 11:8 of CTRL contain CLKDIV_RESTART.
@@ -1666,13 +1666,13 @@ pub struct Interrupt<'a, P: PIOExt, const IRQ: usize> {
 }
 
 // Safety: `Interrupt` provides exclusive access to interrupt registers.
-unsafe impl<'a, P: PIOExt, const IRQ: usize> Send for Interrupt<'a, P, IRQ> {}
+unsafe impl<P: PIOExt, const IRQ: usize> Send for Interrupt<'_, P, IRQ> {}
 
 // Safety: `Interrupt` is marked Send so ensure all accesses remain atomic and no new concurrent
 // accesses are added.
 // `Interrupt` provides exclusive access to `irq_intf` to `irq_inte` for it's state machine, this
 // must remain true to satisfy Send.
-impl<'a, P: PIOExt, const IRQ: usize> Interrupt<'a, P, IRQ> {
+impl<P: PIOExt, const IRQ: usize> Interrupt<'_, P, IRQ> {
     /// Enable interrupts raised by state machines.
     ///
     /// The PIO peripheral has 4 outside visible interrupts that can be raised by the state machines. Note that this

rp2040-hal/src/pwm/mod.rs

@@ -888,7 +888,6 @@ pub struct SliceDmaWriteCc<S: SliceId, M: ValidSliceMode<S>> {
 ///
 /// let dma_conf = double_buffer::Config::new((dma.ch0, dma.ch1), buf, dma_pwm.top);
 /// ```
-
 pub struct SliceDmaWriteTop<S: SliceId, M: ValidSliceMode<S>> {
     slice: PhantomData<S>,
     mode: PhantomData<M>,

rp235x-hal-examples/src/bin/alloc.rs

@@ -55,7 +55,7 @@ fn main() -> ! {
         use core::mem::MaybeUninit;
         const HEAP_SIZE: usize = 1024;
         static mut HEAP: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
-        unsafe { ALLOCATOR.init(HEAP.as_ptr() as usize, HEAP_SIZE) }
+        unsafe { ALLOCATOR.init(core::ptr::addr_of_mut!(HEAP) as usize, HEAP_SIZE) }
     }
 
     // Grab our singleton objects

rp235x-hal-examples/src/bin/gpio_irq_example.rs

@@ -142,6 +142,7 @@ fn main() -> ! {
     }
 }
 
+#[allow(static_mut_refs)] // See https://github.com/rust-embedded/cortex-m/pull/561
 #[interrupt]
 fn IO_IRQ_BANK0() {
     // The `#[interrupt]` attribute covertly converts this to `&'static mut Option<LedAndButton>`

rp235x-hal-examples/src/bin/multicore_fifo_blink.rs

@@ -107,6 +107,7 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
+    #[allow(static_mut_refs)]
     let _test = core1.spawn(unsafe { &mut CORE1_STACK.mem }, move || {
         core1_task(sys_freq)
     });

rp235x-hal-examples/src/bin/multicore_polyblink.rs

@@ -99,6 +99,7 @@ fn main() -> ! {
     let mut mc = Multicore::new(&mut pac.PSM, &mut pac.PPB, &mut sio.fifo);
     let cores = mc.cores();
     let core1 = &mut cores[1];
+    #[allow(static_mut_refs)]
     core1
         .spawn(unsafe { &mut CORE1_STACK.mem }, move || {
             // Get the second core's copy of the `CorePeripherals`, which are per-core.

rp235x-hal-examples/src/bin/pwm_irq_input.rs

@@ -40,7 +40,7 @@ pub static IMAGE_DEF: hal::block::ImageDef = hal::block::ImageDef::secure_exe();
 
 /// 50 Hz PWM servo signals have a pulse width between 1000 us and 2000 us with
 /// 1500 us as the centre point. us is the abbreviation for micro seconds.
-
+///
 /// The PWM threshold value for turning off the LED in us
 const LOW_US: u16 = 1475;
 
@@ -53,7 +53,7 @@ const XTAL_FREQ_HZ: u32 = 12_000_000u32;
 
 /// Pin types quickly become very long!
 /// We'll create some type aliases using `type` to help with that
-
+///
 /// This pin will be our output - it will drive an LED if you run this on a Pico
 type LedPin = gpio::Pin<gpio::bank0::Gpio25, gpio::FunctionSio<gpio::SioOutput>, gpio::PullNone>;
 
@@ -157,6 +157,7 @@ fn main() -> ! {
     }
 }
 
+#[allow(static_mut_refs)] // See https://github.com/rust-embedded/cortex-m/pull/561
 #[interrupt]
 fn IO_IRQ_BANK0() {
     // The `#[interrupt]` attribute covertly converts this to `&'static mut Option<LedAndInput>`