Re: [PATCH v2 07/28] lib/printbuf: Unit specifiers

From: Andy Shevchenko
Date: Thu May 19 2022 - 17:16:53 EST


On Thu, May 19, 2022 at 04:26:26PM -0400, Kent Overstreet wrote:
> On Thu, May 19, 2022 at 11:21:41PM +0300, Andy Shevchenko wrote:
> > On Thu, May 19, 2022 at 01:24:00PM -0400, Kent Overstreet wrote:

...

> > > + if (v < 0)
> > > + pr_char(buf, '-');
> > > + pr_human_readable_u64(buf, abs(v));
> >
> > Wouldn't -v work?
>
> This is a bit terser

Have you checked assembly? Basically the question here is does the compiler see
the same conditional and avoid duplicating it?

...

> > > + * pr_human_readable_u64 - Print out a u64 according to printbuf unit options
> >
> > Have you ever compile this? We have kernel doc validator running when compiling
> > the code...
>
> Yes I have, but I've never seen the kernel doc validator - can you point me to
> something so I can get that working?

I run `make W=1`, but I think the kernel doc validator is run anyway.

You always can run it manually

scripts/kernel-doc -v -none lib/printbuf.c

--
With Best Regards,
Andy Shevchenko