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AJvYcCVKW3v4Yk/ttNr39CFTeo4BTwnnlmIhUh+6JVa7CnYH6EXP3HRb9HW/eE11dt313zns+DzziOMUkGwiBxLN8A==@vger.kernel.org X-Gm-Message-State: AOJu0YxkJg3Ad4rn1o7BcaLNq0GDMFrNrfMx+VZzAQ0OBCJ7dliyTbf2 u7ZFp/O4sA9YBlZgQ0TFCSbTwVYcElXi3OH7L2XxR7mJuwcDANeFUMUaudi61QskqWRfO2fJnX2 MHrO9t9/ASZi/xp/kyw== X-Google-Smtp-Source: AGHT+IFT7h27MqE6VDgXteUcy3w8jAS+2Z96fj5nuIKzzs6pQOCqQDyObRy1nNyD3X3uF9z1SCe1X+iCSK04QMo= X-Received: from wmrn35.prod.google.com ([2002:a05:600c:5023:b0:459:d3ab:b232]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:b93:b0:459:d408:d890 with SMTP id 5b1f17b1804b1-459f4fc4a95mr102409515e9.33.1754905177426; Mon, 11 Aug 2025 02:39:37 -0700 (PDT) Date: Mon, 11 Aug 2025 09:39:36 +0000 In-Reply-To: <20250811041039.3231548-2-fujita.tomonori@gmail.com> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250811041039.3231548-1-fujita.tomonori@gmail.com> <20250811041039.3231548-2-fujita.tomonori@gmail.com> Message-ID: Subject: Re: [PATCH v1 1/2] rust: Add cpu_relax() helper From: Alice Ryhl To: FUJITA Tomonori Cc: a.hindborg@kernel.org, alex.gaynor@gmail.com, ojeda@kernel.org, anna-maria@linutronix.de, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, dakr@kernel.org, frederic@kernel.org, gary@garyguo.net, jstultz@google.com, linux-kernel@vger.kernel.org, lossin@kernel.org, lyude@redhat.com, rust-for-linux@vger.kernel.org, sboyd@kernel.org, tglx@linutronix.de, tmgross@umich.edu, acourbot@nvidia.com, daniel.almeida@collabora.com Content-Type: text/plain; charset="utf-8" On Mon, Aug 11, 2025 at 01:10:37PM +0900, FUJITA Tomonori wrote: > Add cpu_relax() helper in preparation for supporting > read_poll_timeout(). > > Signed-off-by: FUJITA Tomonori Reviewed-by: Alice Ryhl > +pub fn cpu_relax() { > + // SAFETY: Always safe to call. > + unsafe { bindings::cpu_relax() } > +} Let's mark this #[inline]. Alice