linux-kernel - Re: [PATCH v5 29/29] nios2: Build infrastructure

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] [day] [month] [year] [list]

Message-ID: <CAFiDJ58AmQuXnziuxtK6b9Ywm8NqDRwTNt3h+V6sXqSjpqD8XQ@mail.gmail.com>
Date:	Fri, 31 Oct 2014 09:28:29 +0800
From:	Ley Foon Tan <lftan@...era.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	Chung-Lin Tang <cltang@...esourcery.com>
Subject: Re: [PATCH v5 29/29] nios2: Build infrastructure

On Thu, Oct 30, 2014 at 7:33 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Thursday 30 October 2014 18:44:37 Ley Foon Tan wrote:
>> >
>> > I don't remember what all of these are, but at least some of them seem
>> > to be concerned with 64-bit division. By convention, we don't provide those
>> > in the Linux kernel but instead require all code to use the do_div()
>> > macro instead.
>> Do you mean kernel doesn't support 64 bit division result for a 32-bit
>> architecture? Because do_div() only support 32-bit division result for
>> 32-bit architecture.
>
> Correct. If you need a full 64-bit division on a 32-bit kernel, the
> assumption is that your driver has a bug.
>
Okay, will remove 64 bit division.

Regards
Ley Foon
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/