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List:       linux-doc
Subject:    Re: [PATCH v5 29/29] nios2: Build infrastructure
From:       Ley Foon Tan <lftan () altera ! com>
Date:       2014-10-31 1:28:29
Message-ID: CAFiDJ58AmQuXnziuxtK6b9Ywm8NqDRwTNt3h+V6sXqSjpqD8XQ () mail ! gmail ! com
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On Thu, Oct 30, 2014 at 7:33 PM, Arnd Bergmann <arnd@arndb.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
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