rust: time: add Delta::as_jiffies_unsigned()

Delta<Jiffy> is signed, but some C functions, such as
queue_delayed_work_on(), take a span in jiffies as unsigned long. So
each caller has to clamp a negative value to zero and cast it before
it passes the value to C. Add a helper that does both.

Suggested-by: Gary Guo <gary@garyguo.net>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20261002050428.2746277-3-tomo@flapping.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

0 files changed, 0 insertions, 0 deletions