Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
rust: dma: generalize BinaryWriter impl for Coherent<T>
Generalize the BinaryWriter implementation from Coherent<[u8]> to
Coherent<T> where T: KnownSize + AsBytes + ?Sized. The implementation
only uses size() and write_dma(), neither of which depends on the
inner type being a byte slice.
This allows any Coherent allocation with an AsBytes inner type to be
exposed as a debugfs binary file.
Acked-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260325003921.3420-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
+1
-1
+1
-1
rust/kernel/dma.rs
+1
-1
rust/kernel/dma.rs
···
885
885
// The safe methods only return metadata or raw pointers whose use requires `unsafe`.
886
886
unsafe impl<T: KnownSize + ?Sized + AsBytes + FromBytes + Sync> Sync for Coherent<T> {}
887
887
888
-
impl debugfs::BinaryWriter for Coherent<[u8]> {
888
+
impl<T: KnownSize + AsBytes + ?Sized> debugfs::BinaryWriter for Coherent<T> {
889
889
fn write_to_slice(
890
890
&self,
891
891
writer: &mut UserSliceWriter,