On Wed, Dec 20 2017 at 5:21am -0500, kbuild test robot <l...@intel.com> wrote:
> Hi Scott, > > I love your patch! Yet something to improve: > > [auto build test ERROR on dm/for-next] > [also build test ERROR on v4.15-rc4] > [cannot apply to next-20171220] > [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/Scott-Bauer/dm-unstripe/20171220-121845 > base: > https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git > for-next > config: arm-allyesconfig (attached as .config) > compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget > https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O > ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > make.cross ARCH=arm > > All errors (new ones prefixed by >>): > > drivers/md/dm-unstripe.o: In function `set_ctr': > >> dm-unstripe.c:(.text+0x438): undefined reference to `__aeabi_uldivmod' > dm-unstripe.c:(.text+0x450): undefined reference to `__aeabi_uldivmod' > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation These reports are no longer relevant given the code has changed since v4. In particular these 64-bit divide and mod in v4 no longer exist: + u64 tot_sec, mod; ... + tot_sec = i_size_read(bbdev->bd_inode) >> SECTOR_SHIFT; + mod = tot_sec % target->chunk_sectors; + + if (ti->len == 1) + ti->len = (tot_sec / tot_drives) - mod;
