rust: platform: implement the `dma::Device` trait

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

Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250716150354.51081-5-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 3d7a532550c8825d9e2e16f97c30a46cee51a059..3c0c507c243266b78c534d46f5a0360a5ca7b62e 100644 (file)
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -231,6 +231,8 @@ impl<Ctx: device::DeviceContext> Device<Ctx> {
 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) {