Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH v5 29/29] nios2: Build infrastructure | Date | Thu, 30 Oct 2014 12:33:38 +0100 |
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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.
Arnd
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