Re: [PATCH v1] rust: time: fix as_micros_ceil() to round correctly for negative Delta

On Tue, Jul 14, 2026 at 12:52 AM FUJITA Tomonori <[email protected]> wrote:
>
> From: FUJITA Tomonori <[email protected]>
>
> The ceiling-division idiom `(n + d - 1) / d` only produces the
> correct result when `n` is non-negative.
>
> For example, if n = -1000 (exactly -1us), the old code computed (-1000
> + 999) / 1000 == 0 instead of -1.
>
> For negative n, truncating division already rounds towards positive
> infinity, so no bias is needed in that case.
>
> Fixes: fae0cdc12340 ("rust: time: Introduce Delta type")
> Signed-off-by: FUJITA Tomonori <[email protected]>

Applied to `rust-fixes` -- thanks everyone!

    Cc: [email protected]

Cheers,
Miguel