Re: [PATCH v10 02/11] lib: kstrtox: add kstrtoudec64() and kstrtodec64()

Rodrigo Alencar
2026-04-25T21:44:35Z

On 26/04/25 09:57PM, Alexey Dobriyan wrote:
> Rodrigo Alencar wrote:
>
> > kstrtoudec64
> > kstrtodec64
>
> The only comment I have is to maybe sneak in "fixed point" into names
> somehow. Or change to kstrtou64_scaled() because return type is not real
> fixed point type.
>
> A.lexey

I understand that a decimal number is inherently a fixed precision number
with pre-defined scale. The "64" in "dec64" tells that we are storing it in
a 64-bit variable.

kstrtou64_scaled() does not tell me anything about a decimal point handling,
or that the base 10 is taken for granted. Maybe a typedef on u64/s64 to udec64
or dec64 can make things clearer?
I suppose the documentation header of the function would be enough for that.
As it is clear, the function intent is not to return a "fixed point type",
but its scaled representation in u64/s64.

--
Kind regards,

Rodrigo Alencar