Re: [RFC PATCH 3/3] cpufreq: Add Rust based cpufreq-dt driver

From: Benno Lossin
Date: Sun Apr 07 2024 - 06:18:15 EST


On 07.04.24 11:54, Benno Lossin wrote:
> On 05.04.24 13:09, Viresh Kumar wrote:
>> +// Finds exact supply name from the OF node.
>> +fn find_supply_name_exact(np: *mut bindings::device_node, name: &str) -> Option<CString> {
>> + let sname = CString::try_from_fmt(fmt!("{}-supply", name)).ok()?;
>> +
>> + // SAFETY: The OF node is guaranteed by the C code to be valid.
>> + let pp = unsafe { bindings::of_find_property(np, sname.as_ptr() as *mut _, ptr::null_mut()) };
>
> Drivers should avoid calling `unsafe` code as much as possible. They
> also should not be calling `bindings` code directly. Please write (or
> find) abstractions for these `unsafe` calls.

Having re-read the cover letter, I see that you are already aware of
this. If you need any help with creating the abstractions, feel free to
reach out!

--
Cheers,
Benno