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-rw-r--r--rust/kernel/dma.rs7
1 files changed, 3 insertions, 4 deletions
diff --git a/rust/kernel/dma.rs b/rust/kernel/dma.rs
index 84d3c67269e8..acc65b1e0f24 100644
--- a/rust/kernel/dma.rs
+++ b/rust/kernel/dma.rs
@@ -27,8 +27,9 @@ pub type DmaAddress = bindings::dma_addr_t;
/// Trait to be implemented by DMA capable bus devices.
///
/// The [`dma::Device`](Device) trait should be implemented by bus specific device representations,
-/// where the underlying bus is DMA capable, such as [`pci::Device`](::kernel::pci::Device) or
-/// [`platform::Device`](::kernel::platform::Device).
+/// where the underlying bus is DMA capable, such as:
+#[cfg_attr(CONFIG_PCI, doc = "* [`pci::Device`](kernel::pci::Device)")]
+/// * [`platform::Device`](::kernel::platform::Device)
pub trait Device: AsRef<device::Device<Core>> {
/// Set up the device's DMA streaming addressing capabilities.
///
@@ -532,8 +533,6 @@ impl<T: AsBytes + FromBytes> CoherentAllocation<T> {
///
/// # Safety
///
- /// * Callers must ensure that the device does not read/write to/from memory while the returned
- /// slice is live.
/// * Callers must ensure that this call does not race with a read or write to the same region
/// that overlaps with this write.
///