Messages in this thread | | | Date | Fri, 31 Oct 2014 09:28:29 +0800 | Subject | Re: [PATCH v5 29/29] nios2: Build infrastructure | From | Ley Foon Tan <> |
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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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