tree: git://git.infradead.org/users/hch/block.git block-bounce-cleanup head: 6b1b8e36f63fe989298a53f04961018c1785f0b3 commit: 6922ed82e514a69c601c501b5eca1eed2041a710 [3/6] block: refactor the bounce buffering code config: parisc-randconfig-c024-20210311 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block block-bounce-cleanup git checkout 6922ed82e514a69c601c501b5eca1eed2041a710 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): hppa-linux-ld: block/blk-mq.o: in function `blk_mq_submit_bio': hppa-linux-ld: block/blk-map.o: in function `blk_rq_append_bio': (.text+0x134): undefined reference to `__blk_queue_bounce' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org