From 46f651d88662ef931555cd135f09382af206295a Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Mon, 25 May 2026 22:21:01 +0200 Subject: 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 Reviewed-by: Greg Kroah-Hartman Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260525202921.124698-15-dakr@kernel.org Signed-off-by: Danilo Krummrich --- samples/rust/rust_driver_auxiliary.rs | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'samples') diff --git a/samples/rust/rust_driver_auxiliary.rs b/samples/rust/rust_driver_auxiliary.rs index 0e979f45cd68..b30a4d5cdf8a 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 = &AUX_TABLE; - fn probe( - adev: &auxiliary::Device>, - _info: &Self::IdInfo, - ) -> impl PinInit { + fn probe<'bound>( + adev: &'bound auxiliary::Device>, + _info: &'bound Self::IdInfo, + ) -> impl PinInit + 'bound { dev_info!( adev, "Probing auxiliary driver for auxiliary device with id={}\n", -- cgit