Re: [PATCH v9 06/10] math.h: Add macros for rounding to closest value

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On Tue, May 28, 2024 at 04:02:30PM +0530, Devarsh Thakkar wrote:
> On 28/05/24 02:02, Andy Shevchenko wrote:
> > On Sun, May 26, 2024 at 11:38:56PM +0530, Devarsh Thakkar wrote:

...

> >> +/**
> >> + * round_closest_up - round closest to be multiple of specified value (which is
> >> + *                    power of 2) with preference to rounding up
> >> +
> > 
> > Not that big deal, but missing '*' here. Personally I would not even put
> > a blank line between Summary and Field Descriptions.
> 
> My bad. Yes I would remove the blank line here. This is picked up as warning
> from kernel-doc too.
> 
> >> + * @x: the value to round
> >> + * @y: multiple to round closest to (must be a power of 2)
> >> + *
> >> + * Rounds @x to closest multiple of @y (which must be a power of 2).
> >> + * The value can be either rounded up or rounded down depending upon rounded
> >> + * value's closeness to the specified value. If there are two closest possible
> >> + * values, i.e. the difference between the specified value and it's rounded up
> >> + * and rounded down values is same then preference is given to rounded up
> >> + * value.
> >> + *
> >> + * To perform arbitrary rounding to closest value (not multiple of 2), use
> >> + * roundclosest().
> >> + *
> >> + * Examples :
> > 
> > What is this suppose to be rendered to?
> 
> The file math.h is not rendered as part of kernel-doc right now. I can put
> this under Documentation/core-api/kernel-api.rst perhaps I can create a new
> section as below:
> 
> Rounding, absolute diff and 32bit division macros
> -------------------------------------------------
> 
> under the section:
> CRC and Math Functions in Linux
> 
> ===============================
> 
> is that okay ?

This is up to you, but what I meant is that you always can render manually
yourself. And I was asking about the result you got when you tried (and you
did, right?) to render to man, html, and pdf.

> >> + * round_closest_up(17, 4) = 16
> >> + * round_closest_up(15, 4) = 16
> >> + * round_closest_up(14, 4) = 16
> > 
> > Btw, is kernel-doc validator happy about all kernel docs you added?
> 
> Yes, except the aforementioned blank line.

-- 
With Best Regards,
Andy Shevchenko





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