linux-kernel - Re: [PATCH 01/40] lib/string_helpers: Drop space in string_get

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Message-ID: <ZFHB2ATrPIsjObm/@moria.home.lan>
Date:   Tue, 2 May 2023 22:07:20 -0400
From:   Kent Overstreet <kent.overstreet@...ux.dev>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     James Bottomley <James.Bottomley@...senpartnership.com>,
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        Noralf Trï¿½nnes <noralf@...nnes.org>
Subject: Re: [PATCH 01/40] lib/string_helpers: Drop space in
 string_get_size's output

On Tue, May 02, 2023 at 06:19:27PM +0300, Andy Shevchenko wrote:
> On Tue, May 2, 2023 at 9:22 AM Kent Overstreet
> <kent.overstreet@...ux.dev> wrote:
> > On Tue, May 02, 2023 at 08:33:57AM +0300, Andy Shevchenko wrote:
> > > Actually instead of producing zillions of variants, do a %p extension
> > > to the printf() and that's it. We have, for example, %pt with T and
> > > with space to follow users that want one or the other variant. Same
> > > can be done with string_get_size().
> >
> > God no.
> 
> Any elaboration what's wrong with that?

I'm really not a fan of %p extensions in general (they are what people
reach for because we can't standardize on a common string output API),
but when we'd be passing it bare integers the lack of type safety would
be a particularly big footgun.

> God no for zillion APIs for almost the same. Today you want space,
> tomorrow some other (special) delimiter.

No, I just want to delete the space and output numbers the same way
everyone else does. And if we are stuck with two string_get_size()
functions, %p extensions in no way improve the situation.