diff options
| author | Danilo Krummrich <dakr@kernel.org> | 2026-05-25 22:21:01 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-05-27 16:23:47 +0200 |
| commit | 46f651d88662ef931555cd135f09382af206295a (patch) | |
| tree | edb4c6308080e76fdaea88509f5d2e1e7808609c /samples | |
| parent | 81fdc788144348f295cfaa4b1e1edf6c74441c15 (diff) | |
| download | linux-next-history-46f651d88662ef931555cd135f09382af206295a.tar.gz | |
rust: auxiliary: make Driver trait lifetime-parameterized
Add a 'bound lifetime to the associated Data, changing type Data to type
Data<'bound>.
This allows the driver's bus device private data to capture the device /
driver bound lifetime; device resources can be stored directly by
reference rather than requiring Devres.
The probe() and unbind() callbacks thus gain a 'bound lifetime parameter
on the methods themselves; avoiding a global lifetime on the trait impl.
Existing drivers set type Data<'bound> = Self, preserving the current
behavior.
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260525202921.124698-15-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/rust/rust_driver_auxiliary.rs | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs index 0e979f45cd680..b30a4d5cdf8a5 100644 --- a/samples/rust/rust_driver_auxiliary.rs +++ b/samples/rust/rust_driver_auxiliary.rs @@ -31,14 +31,14 @@ kernel::auxiliary_device_table!( impl auxiliary::Driver for AuxiliaryDriver { type IdInfo = (); - type Data = Self; + type Data<'bound> = Self; const ID_TABLE: auxiliary::IdTable<Self::IdInfo> = &AUX_TABLE; - fn probe( - adev: &auxiliary::Device<Core<'_>>, - _info: &Self::IdInfo, - ) -> impl PinInit<Self, Error> { + fn probe<'bound>( + adev: &'bound auxiliary::Device<Core<'_>>, + _info: &'bound Self::IdInfo, + ) -> impl PinInit<Self, Error> + 'bound { dev_info!( adev, "Probing auxiliary driver for auxiliary device with id={}\n", |