Re: [PATCH v5 15/24] rust: usb: make Driver trait lifetime-parameterized

[Gary Guo]

On Mon May 25, 2026 at 9:21 PM BST, Danilo Krummrich wrote:
> 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 disconnect() 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@xxxxxxxxxx>
> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
> Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx>

Reviewed-by: Gary Guo <gary@xxxxxxxxxxx>

> ---
>  rust/kernel/usb.rs              | 37 ++++++++++++++++++++-------------
>  samples/rust/rust_driver_usb.rs | 12 +++++------
>  2 files changed, 28 insertions(+), 21 deletions(-)