Re: [PATCH] drm: nova-drm: fix 32-bit arm build

[Danilo Krummrich <dakr@kernel.org>]

On 7/24/25 6:54 PM, Miguel Ojeda wrote:
> In 32-bit arm, the build fails with:
> 
>      error[E0308]: mismatched types
>        --> drivers/gpu/drm/nova/file.rs:42:28
>         |
>      42 |         getparam.set_value(value);
>         |                  --------- ^^^^^ expected `u64`, found `u32`
>         |                  |
>         |                  arguments to this method are incorrect
>         |
>      note: method defined here
>        --> drivers/gpu/drm/nova/uapi.rs:29:12
>         |
>      29 |     pub fn set_value(&self, v: u64) {
>         |            ^^^^^^^^^        ------
>      help: you can convert a `u32` to a `u64`
>         |
>      42 |         getparam.set_value(value.into());
>         |                                 +++++++
> 
> The reason is that `Getparam::set_value` takes a `u64` (from the UAPI),
> but `pci::Device::resource_len()` returns a `resource_size_t`, which is a
> `phys_addr_t`, which may be 32- or 64-bit.
> 
> Thus add an `into()` call to support the 32-bit case, while allowing the
> Clippy lint that complains in the 64-bit case where the type is the same.
> 
> Fixes: cdeaeb9dd762 ("drm: nova-drm: add initial driver skeleton")
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Applied to drm-misc-fixes, thanks!