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
next prev 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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