Re: [PATCH v4 4/7] rust: time: Add wrapper for fsleep function

[Thomas Gleixner]

On Tue, Oct 29 2024 at 08:30, FUJITA Tomonori wrote:
> On Sun, 27 Oct 2024 21:38:41 -0700
> Boqun Feng <boqun.feng@xxxxxxxxx> wrote:
>> That also works for me, but an immediate question is: do we put
>> #[must_use] on `fsleep()` to enforce the use of the return value? If
>> yes, then the normal users would need to explicitly ignore the return
>> value:
>> 
>> 	let _ = fsleep(1sec);
>> 
>> The "let _ =" would be a bit annoying for every user that just uses a
>> constant duration.
>
> Yeah, but I don't think that we have enough of an excuse here to break
> the rule "Do not crash the kernel".
>
> Another possible option is to convert an invalid argument to a safe
> value (e.g., the maximum), possibly with WARN_ON_ONCE().

That makes sense.