From nobody Sat Feb 7 06:19:54 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A16DC21B199; Mon, 31 Mar 2025 20:29:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743452951; cv=none; b=Rt9srwQUClEidyHITRCwz4lx3mBM+pr6pRXVMFAOBOqvdXsveS7gZu5SBarTsqPPDwwqJM/yzMFSn9J4hG6VvdH0U/re9qwVLvIySNh8IlnKHnDptZJVOsFl5e5pZ+KpNNI5E4yurXiwpDYoPFFkcbKNgOQQFnHKpfNFXZvm9+8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743452951; c=relaxed/simple; bh=YxHRs5a6HHHdMxiYXlHaorHuDEWaBr0Vhep1wlSBUhw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SVskWtbgyf9JlbmWjODaasijU7uMJQBpXbYGD0O0ULALcvrLFnCNN6tbCV9AtLYhC3wtZF4fuRlFHMo68LdTqm/yMIKXkCfHBTIWly+OqUIMbBhGR/6ULm2YyNsDHAJWAx9aL9hVL37A57hNe/M7wjNV73hkOiDhZyhaAgAuGpc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=T4zSVxqs; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="T4zSVxqs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7204FC4CEE3; Mon, 31 Mar 2025 20:29:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743452950; bh=YxHRs5a6HHHdMxiYXlHaorHuDEWaBr0Vhep1wlSBUhw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T4zSVxqsVW9dEyoK7om3DWhnKEDZFbLfanpUkkPKKbbzRg18ur3S07RpgPqSCOeTT BbamUZzpWcYj94Zw+h+oiNpNg4uG2/iq7ROS3LZRgYsx8WEyzSIbLZFi4AYVC7LloL QFgSvI/oJRGSglsxkgcxHBI0QWi8KNQ2KYaH+BtQolmwFWI5iZ6Q+kw3kvcCcfEKw0 XJKA2PUqVv1ZxVStVclslMZlEjM0nc6QxHJViZ39IAZnPrzGptSayImcmddky2Js2b s7STfAH4LRrgLwnF1VVd+98NTbYOXimpD/TwPhFQLfxGOBppYOuYi2SaQoLzZDAaTM 4CSYexckOuaeQ== From: Danilo Krummrich To: bhelgaas@google.com, gregkh@linuxfoundation.org, rafael@kernel.org, abdiel.janulgue@gmail.com Cc: ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, daniel.almeida@collabora.com, robin.murphy@arm.com, linux-pci@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH 5/9] rust: pci: preserve device context in AsRef Date: Mon, 31 Mar 2025 22:27:58 +0200 Message-ID: <20250331202805.338468-6-dakr@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250331202805.338468-1-dakr@kernel.org> References: <20250331202805.338468-1-dakr@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Since device::Device has a generic over its context, preserve this device context in AsRef. For instance, when calling pci::Device the new AsRef implementation returns device::Device. Signed-off-by: Danilo Krummrich --- rust/kernel/pci.rs | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index e235aa23c63a..de140cce13cf 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -360,11 +360,13 @@ fn deref(&self) -> &Self::Target { } } =20 -impl Device { +impl Device { fn as_raw(&self) -> *mut bindings::pci_dev { self.0.get() } +} =20 +impl Device { /// Returns the PCI vendor ID. pub fn vendor_id(&self) -> u16 { // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. @@ -438,8 +440,8 @@ unsafe fn dec_ref(obj: NonNull) { } } =20 -impl AsRef for Device { - fn as_ref(&self) -> &device::Device { +impl AsRef> for Device { + fn as_ref(&self) -> &device::Device { // SAFETY: By the type invariant of `Self`, `self.as_raw()` is a p= ointer to a valid // `struct pci_dev`. let dev =3D unsafe { addr_of_mut!((*self.as_raw()).dev) }; --=20 2.49.0