tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1b5044021070efa3259f3e9548dc35d1eb6aa844 commit: a624a86510adaeefd33aac224751e89348596d2a crypto/chtls:Fix compile error when CONFIG_IPV6 is disabled date: 2 weeks ago config: riscv-randconfig-r001-20200618 (attached as .config) compiler: riscv64-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 a624a86510adaeefd33aac224751e89348596d2a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 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 >>): riscv64-linux-ld: drivers/crypto/chelsio/chtls/chtls_main.o: in function `__write_once_size': include/linux/compiler.h:278: undefined reference to `tls_toe_unregister_device' riscv64-linux-ld: drivers/crypto/chelsio/chtls/chtls_main.o: in function `chtls_register_dev': vim +201 drivers/crypto/chelsio/chtls/chtls_main.c df9d4a1780223c Atul Gupta 2018-12-11 191 a089439478734a Atul Gupta 2018-03-31 192 static void chtls_register_dev(struct chtls_dev *cdev) a089439478734a Atul Gupta 2018-03-31 193 { f21912edd15708 Jakub Kicinski 2019-10-03 194 struct tls_toe_device *tlsdev = &cdev->tlsdev; a089439478734a Atul Gupta 2018-03-31 195 f21912edd15708 Jakub Kicinski 2019-10-03 196 strlcpy(tlsdev->name, "chtls", TLS_TOE_DEVICE_NAME_MAX); a089439478734a Atul Gupta 2018-03-31 197 strlcat(tlsdev->name, cdev->lldi->ports[0]->name, f21912edd15708 Jakub Kicinski 2019-10-03 198 TLS_TOE_DEVICE_NAME_MAX); a089439478734a Atul Gupta 2018-03-31 199 tlsdev->feature = chtls_inline_feature; a089439478734a Atul Gupta 2018-03-31 200 tlsdev->hash = chtls_create_hash; a089439478734a Atul Gupta 2018-03-31 @201 tlsdev->unhash = chtls_destroy_hash; df9d4a1780223c Atul Gupta 2018-12-11 202 tlsdev->release = chtls_dev_release; df9d4a1780223c Atul Gupta 2018-12-11 203 kref_init(&tlsdev->kref); f21912edd15708 Jakub Kicinski 2019-10-03 204 tls_toe_register_device(tlsdev); 65b2c12dcdb883 Ganesh Goudar 2018-08-10 205 cdev->cdev_state = CHTLS_CDEV_STATE_UP; a089439478734a Atul Gupta 2018-03-31 206 } a089439478734a Atul Gupta 2018-03-31 207 :::::: The code at line 201 was first introduced by commit :::::: a089439478734a6a0aa2eabbc03113e0c34db282 crypto: chtls - Register chtls with net tls :::::: TO: Atul Gupta <atul.gupta(a)chelsio.com&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org