Re: [PATCH v5 12/24] rust: pci: make Driver trait lifetime-parameterized

[Gary Guo]

On Mon May 25, 2026 at 9:20 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 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@xxxxxxxxxx>
> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx>

Reviewed-by: Gary Guo <gary@xxxxxxxxxxx>

> ---
>  drivers/gpu/nova-core/driver.rs       |  9 ++++++---
>  rust/kernel/pci.rs                    | 28 +++++++++++++--------------
>  samples/rust/rust_dma.rs              |  7 +++++--
>  samples/rust/rust_driver_auxiliary.rs |  7 +++++--
>  samples/rust/rust_driver_pci.rs       |  7 +++++--
>  5 files changed, 35 insertions(+), 23 deletions(-)