From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9AE5ECD5BAB for ; Thu, 21 May 2026 23:41:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E586610F45D; Thu, 21 May 2026 23:41:11 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="LyhRh4YP"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id F0E4610F45D for ; Thu, 21 May 2026 23:41:09 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 74CE960122; Thu, 21 May 2026 23:41:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C25261F00A3C; Thu, 21 May 2026 23:41:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779406869; bh=JwcbKbNRK8uAfwmPt5zsBCbjPSi2Kcj3uVLASq+gxic=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LyhRh4YPeVfL1qX1kZKG7e/4oRdnyxvm1ypMMuVFPQyzJB2VUBVaYZLOd39JuOICT Ub9YkDZK43HQNUtA3inAbs0dREXFiRSf7elgywVJOGbGZG/RyTjN0vtSd6zitwk+r/ PUb+JszKvMDLpz4K98EQ/Gz3rJvZCEeFogVMQfYiv9RvKSEDHJRvOBXvGAKdpsQB76 9cKNE1UfQW9/I9ukWnGQanP8BD7dp6YaVWvtOGm/GK/2W4SQ7yJRGkkAfrWcxdx9Jc sbz1tqNWQVp2J2QqnnuOlDQYD6ywO7pSoHH+MoNJinI8U1cXkAPNoKEWGV3XKPDxeR YLt49vmo8xGIg== From: Danilo Krummrich To: gregkh@linuxfoundation.org, rafael@kernel.org, acourbot@nvidia.com, aliceryhl@google.com, david.m.ertman@intel.com, ira.weiny@intel.com, leon@kernel.org, viresh.kumar@linaro.org, m.wilczynski@samsung.com, ukleinek@kernel.org, bhelgaas@google.com, kwilczynski@kernel.org, abdiel.janulgue@gmail.com, robin.murphy@arm.com, markus.probst@posteo.de, ojeda@kernel.org, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, igor.korotin@linux.dev, daniel.almeida@collabora.com, pcolberg@redhat.com Cc: driver-core@lists.linux.dev, linux-kernel@vger.kernel.org, nova-gpu@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org, linux-pwm@vger.kernel.org, linux-pci@vger.kernel.org, rust-for-linux@vger.kernel.org, Danilo Krummrich Subject: [PATCH v4 16/27] rust: driver: update module documentation for GAT-based Data type Date: Fri, 22 May 2026 01:34:42 +0200 Message-ID: <20260521233501.1191842-17-dakr@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260521233501.1191842-1-dakr@kernel.org> References: <20260521233501.1191842-1-dakr@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Now that all bus driver traits use type Data<'bound>: 'bound, update the illustrative driver trait in the module documentation to reflect the GAT pattern and lifetime-parameterized callbacks. Reviewed-by: Alexandre Courbot Signed-off-by: Danilo Krummrich --- rust/kernel/driver.rs | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/rust/kernel/driver.rs b/rust/kernel/driver.rs index 93df26ec7caf..bf5ba0d27553 100644 --- a/rust/kernel/driver.rs +++ b/rust/kernel/driver.rs @@ -18,7 +18,7 @@ //! type IdInfo: 'static; //! //! /// The type of the driver's bus device private data. -//! type Data: Send; +//! type Data<'bound>: Send + 'bound; //! //! /// The table of OF device ids supported by the driver. //! const OF_ID_TABLE: Option> = None; @@ -27,11 +27,16 @@ //! const ACPI_ID_TABLE: Option> = None; //! //! /// Driver probe. -//! fn probe(dev: &Device>, id_info: &Self::IdInfo) -//! -> impl PinInit; +//! fn probe<'bound>( +//! dev: &'bound Device>, +//! id_info: &'bound Self::IdInfo, +//! ) -> impl PinInit, Error> + 'bound; //! //! /// Driver unbind (optional). -//! fn unbind(dev: &Device>, this: Pin<&Self::Data>) { +//! fn unbind<'bound>( +//! dev: &'bound Device>, +//! this: Pin<&Self::Data<'bound>>, +//! ) { //! let _ = (dev, this); //! } //! } @@ -46,9 +51,10 @@ )] #![cfg_attr(CONFIG_PCI, doc = "* [`pci::Driver`](kernel::pci::Driver)")] //! -//! The `probe()` callback should return a `impl PinInit`, i.e. the driver's -//! private data. The bus abstraction should store the pointer in the corresponding bus device. The -//! generic [`Device`] infrastructure provides common helpers for this purpose on its +//! The `probe()` callback should return a +//! `impl PinInit, Error>`, i.e. the driver's private data. The bus +//! abstraction should store the pointer in the corresponding bus device. The generic +//! [`Device`] infrastructure provides common helpers for this purpose on its //! [`Device`] implementation. //! //! All driver callbacks should provide a reference to the driver's private data. Once the driver -- 2.54.0