Re: [PATCH v2 1/6] math.h: Add macros for rounding to the closest value

[Andy Shevchenko]

On Mon, Aug 26, 2024 at 08:38:17PM +0530, Devarsh Thakkar wrote:
> Add below rounding related macros:
> 
> round_closest_up(x, y) : Rounds x to the closest multiple of y where y is a
> power of 2, with a preference to round up in case two nearest values are
> possible.
> 
> round_closest_down(x, y) : Rounds x to the closest multiple of y where y is
> a power of 2, with a preference to round down in case two nearest values
> are possible.
> 
> roundclosest(x, y) : Rounds x to the closest multiple of y, this macro
> should generally be used only when y is not multiple of 2 as otherwise
> round_closest* macros should be used which are much faster.

I understand the point, but if you need to send a v3, please explain
the equivalency between roundclosest() and one (or both?) of the
round_closest_*() in case the argument is power-of-2.

Because from the above I don't see what I'll get in such a case.

-- 
With Best Regards,
Andy Shevchenko