From nobody Sun Oct 5 21:57:19 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F222229993B; Tue, 29 Jul 2025 17:32:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753810338; cv=none; b=Em3CpT5NdilkWx4YIofbKsB8TCrqyrf5BzgF1OoWgN7L4uysPTlwbELueVHL6nDIdS4EMnbfOxheRFuQb+BfTjYtdIMmEBljtNL3hStjjyY92CwPaDPHeaDIFRux146KdGGuqBrPyGJYSAEZj/kM3YuNN71CpunI3FWAWTcMWFQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753810338; c=relaxed/simple; bh=Ks5rnGdq/WZDwyCCzJeCpscV0ClRUzaNDean8OPtm2Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=L2My/yxIBICF94jvk2ypTIoGk1KkGFRzGE+iY0FCjIfpSOnwPfkljxddW5s7aeOdTT9pozVoao3BwjQYdZdF0URV8Tor3nseoF8ZMVTbRQpnI+TgJh0VOoQDXklk2u+WNwIvOP9M3V03bsIyjsjeDZ/0PT7hnFBkeb2QyNoX3Zc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=VpwDJOAq; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="VpwDJOAq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1753810335; bh=Ks5rnGdq/WZDwyCCzJeCpscV0ClRUzaNDean8OPtm2Y=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=VpwDJOAqkiX3lD4854zEundkEt31YVJkW6keXUt+m6QiuQj24ig6JTrZ+4aRnEB1O MCrNhy7Lb3gnF6Icre+H/qrPvud9+d1NQgI2IuHlASDE17Ldam3bXc4pFAeasKZ7Dc VpGcRJr2kOAG5cBYxtCjXqr1ZSlZrxU+hF33zGnEjz0ht2GfBWWZrBpmGpJtStraNI Jrt8yDjBgQBe6NYGZUNczz1pR8eXFkgvLMtPccSzbbTS/jjD8jPL9HO4XFAjQ5l6Vy ZqZvcrJ7a9PVJFqjAIbwgWsKbvSkw/WaeTrZQL2u1HrFdrPKgV8KAOMHsqIu4ZsV0n N+BQZApQGEN1g== Received: from [192.168.0.7] (unknown [IPv6:2804:14d:72b4:82f6:67c:16ff:fe57:b5a3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dwlsalmeida) by bali.collaboradmins.com (Postfix) with ESMTPSA id DFEB217E14DD; Tue, 29 Jul 2025 19:32:12 +0200 (CEST) From: Daniel Almeida Date: Tue, 29 Jul 2025 14:31:41 -0300 Subject: [PATCH 2/2] rust: regulator: implement Send and Sync for Regulator Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250729-regulator-send-sync-v1-2-8bcbd546b940@collabora.com> References: <20250729-regulator-send-sync-v1-0-8bcbd546b940@collabora.com> In-Reply-To: <20250729-regulator-send-sync-v1-0-8bcbd546b940@collabora.com> To: Liam Girdwood , Mark Brown , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich Cc: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, Daniel Almeida X-Mailer: b4 0.14.2 Sending a &Regulator to another thread is safe, as the regulator core will properly handle the locking for us. Additionally, there are no restrictions that prevents sending a Regulator to another thread. Given these two facts, implement Send and Sync. Signed-off-by: Daniel Almeida --- rust/kernel/regulator.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/rust/kernel/regulator.rs b/rust/kernel/regulator.rs index d56aa229e838c45258a27cea742a693dd71e8e40..704147e18bfc9c993a00f7a1871= 05360ad1d4956 100644 --- a/rust/kernel/regulator.rs +++ b/rust/kernel/regulator.rs @@ -398,6 +398,14 @@ fn drop(&mut self) { } } =20 +// SAFETY: It is safe to send a `Regulator` across threads. In particul= ar, a +// Regulator can be dropped from any thread. +unsafe impl Send for Regulator {} + +// SAFETY: It is safe to send a &Regulator across threads because the C= side +// handles its own locking. +unsafe impl Sync for Regulator {} + /// A voltage. /// /// This type represents a voltage value in microvolts. --=20 2.50.0