From mboxrd@z Thu Jan 1 00:00:00 1970 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 CF25F2FD881; Thu, 10 Jul 2025 19:46:25 +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=1752176785; cv=none; b=bWGztwICh+ko6kU7MSkSL++qOzNrDatSpMXg72gSCLsFiJ5EHBNYP2bUAQBJwgR+nog3kp3HlYhYcjRGq2kpyZ37zLXX3tltglRaTDuzp5/bOoFR7KMOb6LoloJGNv4BVdMXBke6NQF/xm1RKHRmzCYU25YFAsg/1Pz3hM7gmpA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752176785; c=relaxed/simple; bh=vhhxnpJlh4ltrVdKPZ0PalFNXVHgE4twQwRORIbzjCI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JA+JR8HB+mmvYofNZllnY+3YvdQx3cUgu9/+EnQlsH6AwEy+m4ka+rBO5tMZF31DZ90sVnbIFgRTHucatfjzpRrIG5CgiPAARQUdtf8X+bjyISRAusGRmNVVB3EZ7TmYjaTXDN7TrrLYCIPrgFD/CJmyTw5ykuc6F14LMP2HA+M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XU9eVGAb; 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="XU9eVGAb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 535FAC4CEF1; Thu, 10 Jul 2025 19:46:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752176785; bh=vhhxnpJlh4ltrVdKPZ0PalFNXVHgE4twQwRORIbzjCI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XU9eVGAbThRlUKPswr2WH1X3+yyOQrIXbX4LXRxkLhMueFCuLr4OqwVzS5agcJTkP RzG0pzNtt64HL+r37nJzLHaDbYrNz6D962QbwETA4XOCXVkOhVI+p8ICSspzJLV8pi Y6eMxKzqGR94EZNgNgMo2SnkBB5Z4scTQ3po8fYXZFVWEIRy5NFu/kHK3oOPP8GW7J FP23tl6ifN9ryp1pR06hGbqALUp2E27bObgfa3BzA1dvt3Lq4SU7Tmz1/mipIn/GKD VUrH2ylgqPUc0G84rs45wzOcsyCPcFxyliRZFPiLPwcmkHoU6CdjNU1topjgaycOOk 4cWjag5WD0nxw== From: Danilo Krummrich To: abdiel.janulgue@gmail.com, daniel.almeida@collabora.com, robin.murphy@arm.com, a.hindborg@kernel.org, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, aliceryhl@google.com, tmgross@umich.edu, bhelgaas@google.com, kwilczynski@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org Cc: rust-for-linux@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH 4/5] rust: platform: implement the `dma::Device` trait Date: Thu, 10 Jul 2025 21:45:46 +0200 Message-ID: <20250710194556.62605-5-dakr@kernel.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250710194556.62605-1-dakr@kernel.org> References: <20250710194556.62605-1-dakr@kernel.org> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The platform bus is potentially capable of performing DMA, hence implement the `dma:Device` trait for `platform::Device`. Signed-off-by: Danilo Krummrich --- rust/kernel/platform.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs index 5b21fa517e55..7236af6482be 100644 --- a/rust/kernel/platform.rs +++ b/rust/kernel/platform.rs @@ -195,6 +195,8 @@ fn as_raw(&self) -> *mut bindings::platform_device { kernel::impl_device_context_deref!(unsafe { Device }); kernel::impl_device_context_into_aref!(Device); +impl crate::dma::Device for Device {} + // SAFETY: Instances of `Device` are always reference-counted. unsafe impl crate::types::AlwaysRefCounted for Device { fn inc_ref(&self) { -- 2.50.0