On Tue, Feb 27, 2018 at 5:52 AM, Jisheng Zhang <Jisheng.Zhang at synaptics.com> wrote: > On Mon, 26 Feb 2018 20:27:22 +0000 Alexey Brodkin wrote: >> On Mon, 2018-02-26 at 20:30 +0200, Andy Shevchenko wrote: >> > On Mon, Feb 26, 2018 at 7:14 PM, Evgeniy Didin >> > <Evgeniy.Didin at synopsys.com> wrote: >> > > On Mon, 2018-02-26 at 18:53 +0200, Andy Shevchenko wrote: >> > > > On Mon, Feb 26, 2018 at 5:14 PM, Evgeniy Didin >> > > > > > IIRC, someone commented on this or similar, i.e. >> > > > > > DIV_ROUND_UP_ULL() ? ^^^^^^^^^^^^ >> So maybe we need to add export of __udivdi3() for other arches, what do you think? > Per my understanding, Linux kernel prefer to make use of do_div or implementations > in <linux/math64.h> for 64bit divide To everyone in this thread. See just above. That's solution which will work. Other than that, drop COMPILE_TEST from the Kconfig and put a comment that driver will not compile on architectures w/o division library. -- With Best Regards, Andy Shevchenko
