Re: [PATCH v2 2/2] serial_ir: use precision ktime rather than guessing

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On Fri, Nov 11, 2016 at 11:49:38AM +0800, kbuild test robot wrote:
> Hi Sean,
> 
> [auto build test ERROR on linuxtv-media/master]
> [also build test ERROR on next-20161110]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Sean-Young/serial_ir-port-lirc_serial-to-rc-core/20161111-033554
> base:   git://linuxtv.org/media_tree.git master
> config: m68k-allmodconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 4.9.0
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=m68k 
> 
> All errors (new ones prefixed by >>):
> 
> >> ERROR: "__divdi3" [drivers/media/rc/serial_ir.ko] undefined!

Apparently calling ndelay() with 64 bit type causes this on m68k. We don't
need it that wide so I'll down cast it to 32 bit. Expect a v3 later today
or tomorrow.

Thanks
Sean
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