On Fri, Jul 04, 2025 at 08:14:11AM +0200, Daniel Sedlak wrote:
> Hi Daniel,
>
> On 7/3/25 9:30 PM, Daniel Almeida wrote:
> > +/// Flags to be used when registering IRQ handlers.
> > +///
> > +/// They can be combined with the operators `|`, `&`, and `!`.
> > +#[derive(Clone, Copy, PartialEq, Eq)]
> > +pub struct Flags(u64);
>
> Why not Flags(u32)? You may get rid of all unnecessary casts later, plus
> save some extra bytes.
It looks like the C methods take an `unsigned long`. In that case, I'd
probably write the code to match that.
pub struct Flags(c_ulong);
and git rid of the cast when calling bindings::request_irq.
As for all the constants in this file, maybe it would be nice with a
private constructor that uses the same type as bindings to avoid the
casts?
impl Flags {
const fn new(value: u32) -> Flags {
...
}
}
/// Use the interrupt line as already configured.
pub const TRIGGER_NONE: Flags = Flags::new(bindings::IRQF_TRIGGER_NONE);
Not a big deal, but avoiding the cast when calling bindings::request_irq
is a good idea I think.
With that:
Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Alice
