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From: Danilo Krummrich <dakr@kernel.org>
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 <dakr@kernel.org>
Subject: [PATCH 4/5] rust: platform: implement the `dma::Device` trait
Date: Thu, 10 Jul 2025 21:45:46 +0200	[thread overview]
Message-ID: <20250710194556.62605-5-dakr@kernel.org> (raw)
In-Reply-To: <20250710194556.62605-1-dakr@kernel.org>

The platform bus is potentially capable of performing DMA, hence implement
the `dma:Device` trait for `platform::Device`.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
 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<device::Core> {}
+
 // SAFETY: Instances of `Device` are always reference-counted.
 unsafe impl crate::types::AlwaysRefCounted for Device {
     fn inc_ref(&self) {
-- 
2.50.0


  parent reply	other threads:[~2025-07-10 19:46 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-10 19:45 [PATCH 0/5] dma::Device trait and DMA mask Danilo Krummrich
2025-07-10 19:45 ` [PATCH 1/5] rust: dma: implement `dma::Device` trait Danilo Krummrich
2025-07-10 19:45 ` [PATCH 2/5] rust: dma: add DMA addressing capabilities Danilo Krummrich
2025-07-11 19:35   ` Joel Fernandes
2025-07-11 19:54     ` Danilo Krummrich
2025-07-11 23:40       ` Joel Fernandes
2025-07-11 20:14     ` Miguel Ojeda
2025-07-11 23:45       ` Joel Fernandes
2025-07-16  3:18   ` Alexandre Courbot
2025-07-16  8:04     ` Danilo Krummrich
2025-07-16  8:12       ` Alexandre Courbot
2025-07-16  9:15   ` Greg KH
2025-07-16 10:08     ` Danilo Krummrich
2025-07-16 10:20     ` Alice Ryhl
2025-07-10 19:45 ` [PATCH 3/5] rust: pci: implement the `dma::Device` trait Danilo Krummrich
2025-07-10 19:45 ` Danilo Krummrich [this message]
2025-07-10 19:45 ` [PATCH 5/5] rust: samples: dma: set DMA mask Danilo Krummrich
2025-07-14 13:00 ` [PATCH 0/5] dma::Device trait and " Abdiel Janulgue

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