Re: [PATCH v2] rust: kunit: fix warning when !CONFIG_PRINTK

[David Gow <david@davidgow.net>]

Le 24/02/2026 à 6:37 PM, 'Alexandre Courbot' via KUnit Development a écrit :
> If `CONFIG_PRINTK` is not set, then the following warnings are issued
> during build:
> 
>    warning: unused variable: `args`
>      --> ../rust/kernel/kunit.rs:16:12
>      |
>    16 | pub fn err(args: fmt::Arguments<'_>) {
>      |            ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
>      |
>      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
> 
>    warning: unused variable: `args`
>      --> ../rust/kernel/kunit.rs:32:13
>      |
>    32 | pub fn info(args: fmt::Arguments<'_>) {
>      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
> 
> Fix this by adding a no-op assignment using `args` when `CONFIG_PRINTK`
> is not set.
> 
> Fixes: a66d733da801 ("rust: support running Rust documentation tests as KUnit ones")
> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
> ---
> Changes in v2:
> - Use a no-op assignment instead of the wider `#[allow(unused_variables)]`.
> - Link to v1: https://patch.msgid.link/20260224-unused_var_err-v1-1-c51d805eceb5@nvidia.com
> ---

Reviewed-by: David Gow <david@davidgow.net>

Cheers,
-- David