rust: dma: add CoherentArray for compile-time sized allocations

[PATCH 8/9] rust: dma: add CoherentObject for single element allocations

Posted by Eliot Courtney 1 week, 1 day ago

Add a type alias for convenience and readability for single element
allocations.

Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
---
 rust/kernel/dma.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/rust/kernel/dma.rs b/rust/kernel/dma.rs
index 25da678c863b..120fc01e57a3 100644
--- a/rust/kernel/dma.rs
+++ b/rust/kernel/dma.rs
@@ -423,6 +423,9 @@ pub struct CoherentAllocation<T: AsBytes + FromBytes, Size: AllocationSize = Run
 /// A coherent DMA allocation for an array of `N` elements.
 pub type CoherentArray<T, const N: usize> = CoherentAllocation<T, StaticSize<N>>;
 
+/// A coherent DMA allocation for a single object.
+pub type CoherentObject<T> = CoherentAllocation<T, StaticSize<1>>;
+
 impl<T: AsBytes + FromBytes, Size: AllocationSize> CoherentAllocation<T, Size> {
     /// Returns the number of elements `T` in this allocation.
     ///

-- 
2.52.0