From nobody Mon Oct 6 22:48:56 2025 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 A55EF20F09C; Wed, 16 Jul 2025 15:04:25 +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=1752678265; cv=none; b=exhWzDkA0kuEhnbmXGsYyLPLDhE1O0NgX8JeoYgeDSIz1m2AaRFL9hBjmXgLmRw77hXq9tXMGJt3PG+Wrsdh//gFvACw9GSWixo22kuM+E5F3sS0HyTDvN59NILN8wIwX/wqZsA5M+pT/YCCwEmwpx8VcJxJa5JK3GJGcJLv/g8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752678265; c=relaxed/simple; bh=vhhxnpJlh4ltrVdKPZ0PalFNXVHgE4twQwRORIbzjCI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UfzS0tRghRV0LSBvurnpSiwrBMTtboB3wo1CmpgV/jPvx2FQf7bhhijE/TxkAN53gbOMPcRwAB6RTI2G21CtF49AeMXPLm2Re7xB6Y7CBVB4TOgbrhjSz6C2fj2i0Akn/AO5crvggy2cz3uVU3oXryYscIT3adGUJcrkHR7lPgc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Fik1BATe; 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="Fik1BATe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 327EAC4CEE7; Wed, 16 Jul 2025 15:04:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752678265; bh=vhhxnpJlh4ltrVdKPZ0PalFNXVHgE4twQwRORIbzjCI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fik1BATeBCOOH/UArM6WXi3OgiOC4APPr6olqKF3Vhqozrh1a0nStLkJEmydaQ/iK 8cdYHW2Er5obVJHX23FW2d14GqlSzrpQob6RVQTYe7Dx7l796x0YAOTj84HF1uHE2W vRGLYQByicKQcvgzA4qIo4Hw60RDSmqzOAzLFBfVakRJzCnmas/HUvVZVUDt92wrka 8VU0bbbhDSEDP990+OQCvdJj47puOBiTPnIhRjYu2CvAtcWEPDV7164k8FT53VwsLL rsM+LXoO9ej5vix2qeXskPj9LZGiCleWfm1vZC+IRJL+M1GGQYGG/sXUzI8OSzjLyt vdlSPQZw7POfA== 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 v2 4/5] rust: platform: implement the `dma::Device` trait Date: Wed, 16 Jul 2025 17:02:49 +0200 Message-ID: <20250716150354.51081-5-dakr@kernel.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250716150354.51081-1-dakr@kernel.org> References: <20250716150354.51081-1-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" 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); =20 +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) { --=20 2.50.0