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rust: pci: require Send for Driver trait implementers

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The instance of Self, returned and created by Driver::probe() is
dropped in the bus' remove() callback.

Request implementers of the Driver trait to implement Send, since the
remove() callback is not guaranteed to run from the same thread as
probe().

Fixes: 1bd8b6b2c5 ("rust: pci: add basic PCI device / driver abstractions")
Cc: stable <stable@kernel.org>
Reported-by: Alice Ryhl <aliceryhl@google.com>
Closes: https://lore.kernel.org/lkml/Z9rDxOJ2V2bPjj5i@google.com/
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20250319145350.69543-1-dakr@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Danilo Krummrich 2025-03-19 15:52:55 +01:00 • committed by Greg Kroah-Hartman
parent 455943aa18
commit 935e1d90bf
1 changed files with 1 additions and 1 deletions
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2
rust/kernel/pci.rs
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@ -222,7 +222,7 @@ macro_rules! pci_device_table {
///```
/// Drivers must implement this trait in order to get a PCI driver registered. Please refer to the
/// `Adapter` documentation for an example.
pub trait Driver {
pub trait Driver: Send {
/// The type holding information about each device id supported by the driver.
///
/// TODO: Use associated_type_defaults once stabilized: