Implement Sync for Device<Bound> in addition to Device<Normal>.
Device<Bound> uses the same underlying struct pci_dev as Device<Normal>; Bound is a zero-sized type-state marker that does not affect thread safety. This is needed for drivers to store &'bound pci::Device<Bound> in their private data while remaining Send. Signed-off-by: Danilo Krummrich <[email protected]> --- rust/kernel/pci.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index ffaf05bf9aaa..c06ac3fb2a64 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -528,3 +528,7 @@ unsafe impl Send for Device {} // SAFETY: `Device` can be shared among threads because all methods of `Device` // (i.e. `Device<Normal>) are thread safe. unsafe impl Sync for Device {} + +// SAFETY: Same as `Device<Normal>` -- the underlying `struct pci_dev` is the same; +// `Bound` is a zero-sized type-state marker that does not affect thread safety. +unsafe impl Sync for Device<device::Bound> {} -- 2.54.0
