linux-kernel - Re: [PATCH v15 1/2] math.h: provide rounddown

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHp75VdNm_3ASFytiY616KsbbhfKFOicCwwNATbFQA68ZgVbdA@mail.gmail.com>
Date: Tue, 24 Jun 2025 11:44:10 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Christian Marangi <ansuelsmth@...il.com>, Uwe Kleine-König <ukleinek@...nel.org>, 
	Lukas Wunner <lukas@...ner.de>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	Herbert Xu <herbert@...dor.apana.org.au>, Andy Shevchenko <andy@...nel.org>, 
	Jonathan Cameron <Jonathan.Cameron@...wei.com>, linux-kernel@...r.kernel.org, 
	linux-pwm@...r.kernel.org
Subject: Re: [PATCH v15 1/2] math.h: provide rounddown_ull variant for
 rounddown MACRO

On Tue, Jun 24, 2025 at 11:41 AM Andy Shevchenko
<andriy.shevchenko@...el.com> wrote:
> On Tue, Jun 24, 2025 at 09:45:08AM +0200, Christian Marangi wrote:
> > On Tue, Jun 24, 2025 at 09:08:32AM +0300, Andy Shevchenko wrote:
> > > On Tue, Jun 24, 2025 at 12:11 AM Christian Marangi <ansuelsmth@...il.com> wrote:

...

> > > rounddown_ull()
>
> Btw, I don't like name for this, it's better to be in math64 with the u64 or similar suffixes like it's used for div/mul variants.
>
> Also add a roundup to make the API symmetrical (yes, it's okay that it has no
> users, it's a macro and doesn't consume memory at run-time).

Ha, there is already roundup_u64() in math64!

-- 
With Best Regards,
Andy Shevchenko