tree: https://github.com/linuxppc/linux next-test head: a0e12ec27095fc3f3c3d94c86fccf08ffb58d9de commit: ec53bfbca2559623d146321f8b3da4ec65379fff [43/86] powerpc/vdso64: Switch from __get_datapage() to get_datapage inline macro config: powerpc-defconfig (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 checkout ec53bfbca2559623d146321f8b3da4ec65379fff # 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; Note: the linuxppc/next-test HEAD a0e12ec27095fc3f3c3d94c86fccf08ffb58d9de builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): arch/powerpc/kernel/vdso64/gettimeofday.S: Assembler messages: arch/powerpc/kernel/vdso64/gettimeofday.S:74: Error: unrecognized opcode: `get_datapage' arch/powerpc/kernel/vdso64/gettimeofday.S:191: Error: unrecognized opcode: `get_datapage' arch/powerpc/kernel/vdso64/gettimeofday.S:224: Error: unrecognized opcode: `get_datapage' vim +29 arch/powerpc/kernel/vdso64/gettimeofday.S 14 15 .text 16 /* 17 * Exact prototype of gettimeofday 18 * 19 * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz); 20 * 21 */ 22 V_FUNCTION_BEGIN(__kernel_gettimeofday) 23 .cfi_startproc 24 mflr r12 25 .cfi_register lr,r12 26 27 mr r11,r3 /* r11 holds tv */ 28 mr r10,r4 /* r10 holds tz */ 30 cmpldi r11,0 /* check if tv is NULL */ 31 beq 2f 32 lis r7,1000000@ha /* load up USEC_PER_SEC */ 33 addi r7,r7,1000000@l 34 bl V_LOCAL_FUNC(__do_get_tspec) /* get sec/us from tb & kernel */ 35 std r4,TVAL64_TV_SEC(r11) /* store sec in tv */ 36 std r5,TVAL64_TV_USEC(r11) /* store usec in tv */ 37 2: cmpldi r10,0 /* check if tz is NULL */ 38 beq 1f 39 lwz r4,CFG_TZ_MINUTEWEST(r3)/* fill tz */ 40 lwz r5,CFG_TZ_DSTTIME(r3) 41 stw r4,TZONE_TZ_MINWEST(r10) 42 stw r5,TZONE_TZ_DSTTIME(r10) 43 1: mtlr r12 44 crclr cr0*4+so 45 li r3,0 /* always success */ 46 blr 47 .cfi_endproc 48 V_FUNCTION_END(__kernel_gettimeofday) 49 50 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org