tree: git://git.infradead.org/users/hch/block.git bvec-phys head: 1caceae1dbe2ae172c3df6aa09d8122e0cc6b9e3 commit: 2abcd5b331a54386d77b81e7bd8f5d5f8e675db9 [7/30] ps3disk: use memcpy_{from,to}_bvec config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-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 bvec-phys git checkout 2abcd5b331a54386d77b81e7bd8f5d5f8e675db9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 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 >>): drivers/block/ps3disk.c: In function 'ps3disk_scatter_gather': 90 | memcpy_from_bvec(dev->bounce_buf + offset, &bv) | ^~ | bvec drivers/block/ps3disk.c:90:48: note: each undeclared identifier is reported only once for each function it appears in 90 | memcpy_from_bvec(dev->bounce_buf + offset, &bv) | ^ | ; 91 | else | ~~~~ vim +90 drivers/block/ps3disk.c 79 80 81 static void ps3disk_scatter_gather(struct ps3_storage_device *dev, 82 struct request *req, int gather) 83 { 84 unsigned int offset = 0; 85 struct req_iterator iter; 86 struct bio_vec bvec; 87 88 rq_for_each_segment(bvec, req, iter) { 89 if (gather) 91 else 92 memcpy_to_bvec(&bv dev->bounce_buf + offset); 93 offset += bvec.bv_len; 94 } 95 } 96 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org