On Sun, Jun 25, 2017 at 11:30:22PM +0200, Adam Borowski wrote: > On Mon, Jun 26, 2017 at 03:03:17AM +0800, kbuild test robot wrote: > > Hi Nick, > > > > url: > > https://github.com/0day-ci/linux/commits/Nick-Terrell/lib-Add-xxhash-module/20170625-214344 > > config: i386-allmodconfig (attached as .config) > > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > > reproduce: > > # save the attached .config to linux build tree > > make ARCH=i386 > > > > All errors (new ones prefixed by >>): > > > > >> ERROR: "__udivdi3" [lib/zstd/zstd_compress.ko] undefined! > > ERROR: "__udivdi3" [fs/ufs/ufs.ko] undefined! > > Just to save you time to figure it out: > for division when one or both arguments are longer than the architecture's > word, gcc uses helper functions that are included when compiling in a hosted > environment -- but not in freestanding. > > Thus, you want do_div() instead of /; do check widths and signedness of > arguments.
No do_div please, div_u64 or div64_u64. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
