On Thu, Jan 14, 2016 at 11:30:31PM +0800, kbuild test robot wrote: > Hi Mahesh, > > [auto build test ERROR on drm-intel/for-linux-next] > [also build test ERROR on next-20160114] > [cannot apply to v4.4] > [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] > > url: https://github.com/0day-ci/linux/commits/Shobhit-Kumar/Misc-WM-fixes-and-Arbitrated-Display-Bandwidth-WA-for-SKL/20160114-200444 > base: git://anongit.freedesktop.org/drm-intel for-linux-next > config: i386-defconfig (attached as .config) > reproduce: > # save the attached .config to linux build tree > make ARCH=i386 > > All errors (new ones prefixed by >>): > > drivers/built-in.o: In function `skl_update_wm': > >> intel_pm.c:(.text+0xdcbfb): undefined reference to `__udivdi3' > intel_pm.c:(.text+0xdccb7): undefined reference to `__udivdi3' In case you wonder, compiling for x86 32 bits, this is most likely because DIV_ROUND_UP() uses a stray '/' operator and you use it with 64 bit values, which will make gcc use a run-time helper function that isn't part of the kernel. You need to use DIV_ROUND_UP_ULL(), making sure the second parameter is 32 bits only. HTH, -- Damien _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
