Re: [PATCH 0/1] rust: module_param: support bool parameters

[Andreas Hindborg <a.hindborg@kernel.org>]

"Greg KH" <greg@kroah.com> writes:

> On Sat, Apr 11, 2026 at 09:02:53AM -0400, Wenzhao Liao wrote:
>> Sorry for the earlier noise and for our unfamiliarity with parts of the
>> kernel submission process, which created extra burden for maintainers.
>>
>> This patch adds boolean module parameter support to the Rust `module!`
>> parameter path.
>>
>> It implements `ModuleParam` for `bool` and wires `PARAM_OPS_BOOL` into
>> the Rust module parameter machinery, so Rust-side parsing reuses the
>> existing kernel `kstrtobool()` semantics through `kstrtobool_bytes()`
>> instead of introducing a separate parser. A boolean parameter is also
>> added to `samples/rust/rust_minimal.rs` as a small reference user and
>> build-time validation point.
>
> What driver needs this feature?  Module options should be very rare
> going forward as they are 1990's technology and do not fit the "modern"
> kernel model at all.

Rust null block uses module parameters, and was requested to use proper
boolean parsing rather than overloading u8 parsing for boolean
parameters [1].

Best regards,
Andreas Hindborg


[1] https://lore.kernel.org/rust-for-linux/abfK4eji5jKSeO_W@google.com/