linux-kernel - Re: [PATCH v3 1/2] rust: time: Implement Add<Delta>/Sub<Delta> for Instant

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Message-ID: <aK7d8SN1wckZDZ6v@google.com>
Date: Wed, 27 Aug 2025 10:29:05 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Lyude Paul <lyude@...hat.com>
Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Thomas Gleixner <tglx@...utronix.de>, Andreas Hindborg <a.hindborg@...nel.org>, 
	FUJITA Tomonori <fujita.tomonori@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Frederic Weisbecker <frederic@...nel.org>, Anna-Maria Behnsen <anna-maria@...utronix.de>, 
	John Stultz <jstultz@...gle.com>, Stephen Boyd <sboyd@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>
Subject: Re: [PATCH v3 1/2] rust: time: Implement Add<Delta>/Sub<Delta> for Instant

On Wed, Aug 20, 2025 at 04:26:43PM -0400, Lyude Paul wrote:
> In order to copy the behavior rust currently follows for basic arithmetic
> operations and panic if the result of an addition or subtraction results in
> a value that would violate the invariants of Instant, but only if the
> kernel has overflow checking for rust enabled.
> 
> Signed-off-by: Lyude Paul <lyude@...hat.com>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>