diff options
| author | Danilo Krummrich <dakr@kernel.org> | 2025-04-13 19:37:04 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2025-04-17 15:21:54 +0200 |
| commit | 7bd1710aac0571d4722f1429a9332c57b3a8feaf (patch) | |
| tree | ecaeb7bd71abd161a949d7c70b2b73200b9873d0 /rust/kernel | |
| parent | f720efda2db5e609b32100c25d9cf383f082d945 (diff) | |
rust: dma: require a bound device
Require the Bound device context to be able to create new
dma::CoherentAllocation instances.
DMA memory allocations are only valid to be created for bound devices.
Link: https://lore.kernel.org/r/20250413173758.12068-10-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'rust/kernel')
| -rw-r--r-- | rust/kernel/dma.rs | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/rust/kernel/dma.rs b/rust/kernel/dma.rs index 8cdc76043ee7..605e01e35715 100644 --- a/rust/kernel/dma.rs +++ b/rust/kernel/dma.rs @@ -6,7 +6,7 @@ use crate::{ bindings, build_assert, - device::Device, + device::{Bound, Device}, error::code::*, error::Result, transmute::{AsBytes, FromBytes}, @@ -22,10 +22,10 @@ use crate::{ /// # Examples /// /// ``` -/// use kernel::device::Device; +/// # use kernel::device::{Bound, Device}; /// use kernel::dma::{attrs::*, CoherentAllocation}; /// -/// # fn test(dev: &Device) -> Result { +/// # fn test(dev: &Device<Bound>) -> Result { /// let attribs = DMA_ATTR_FORCE_CONTIGUOUS | DMA_ATTR_NO_WARN; /// let c: CoherentAllocation<u64> = /// CoherentAllocation::alloc_attrs(dev, 4, GFP_KERNEL, attribs)?; @@ -143,16 +143,16 @@ impl<T: AsBytes + FromBytes> CoherentAllocation<T> { /// # Examples /// /// ``` - /// use kernel::device::Device; + /// # use kernel::device::{Bound, Device}; /// use kernel::dma::{attrs::*, CoherentAllocation}; /// - /// # fn test(dev: &Device) -> Result { + /// # fn test(dev: &Device<Bound>) -> Result { /// let c: CoherentAllocation<u64> = /// CoherentAllocation::alloc_attrs(dev, 4, GFP_KERNEL, DMA_ATTR_NO_WARN)?; /// # Ok::<(), Error>(()) } /// ``` pub fn alloc_attrs( - dev: &Device, + dev: &Device<Bound>, count: usize, gfp_flags: kernel::alloc::Flags, dma_attrs: Attrs, @@ -194,7 +194,7 @@ impl<T: AsBytes + FromBytes> CoherentAllocation<T> { /// Performs the same functionality as [`CoherentAllocation::alloc_attrs`], except the /// `dma_attrs` is 0 by default. pub fn alloc_coherent( - dev: &Device, + dev: &Device<Bound>, count: usize, gfp_flags: kernel::alloc::Flags, ) -> Result<CoherentAllocation<T>> { |