tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5e63226c72287bc6c6724d4fc7e157af0e3d7908 commit: f3ccfda1931977b80267ba54070a1aeafa18f6ca [9487/10945] ethtool: extend coalesce setting uAPI with CQE mode config: um-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f3ccfda1931977b80267ba54070a1aeafa18f6ca git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout f3ccfda1931977b80267ba54070a1aeafa18f6ca # save the attached .config to linux build tree make W=1 ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): arch/um/drivers/vector_kern.c: In function 'get_bpf_flash': arch/um/drivers/vector_kern.c:144:18: warning: ordered comparison of pointer with integer zero [-Wextra] 144 | return (allow > 0); | ^ arch/um/drivers/vector_kern.c: In function 'vector_parse': arch/um/drivers/vector_kern.c:718:9: warning: variable 'len' set but not used [-Wunused-but-set-variable] 718 | int n, len, err; | ^~~ arch/um/drivers/vector_kern.c: At top level: >> arch/um/drivers/vector_kern.c:1519:18: error: initialization of 'int (*)(struct net_device *, struct ethtool_coalesce *, struct kernel_ethtool_coalesce *, struct netlink_ext_ack *)' from incompatible pointer type 'int (*)(struct net_device *, struct ethtool_coalesce *)' [-Werror=incompatible-pointer-types] 1519 | .get_coalesce = vector_get_coalesce, | ^~~~~~~~~~~~~~~~~~~ arch/um/drivers/vector_kern.c:1519:18: note: (near initialization for 'vector_net_ethtool_ops.get_coalesce') arch/um/drivers/vector_kern.c:1520:18: error: initialization of 'int (*)(struct net_device *, struct ethtool_coalesce *, struct kernel_ethtool_coalesce *, struct netlink_ext_ack *)' from incompatible pointer type 'int (*)(struct net_device *, struct ethtool_coalesce *)' [-Werror=incompatible-pointer-types] 1520 | .set_coalesce = vector_set_coalesce, | ^~~~~~~~~~~~~~~~~~~ arch/um/drivers/vector_kern.c:1520:18: note: (near initialization for 'vector_net_ethtool_ops.set_coalesce') cc1: some warnings being treated as errors vim +1519 arch/um/drivers/vector_kern.c 49da7e64f33e80 Anton Ivanov 2017-11-20 1509 49da7e64f33e80 Anton Ivanov 2017-11-20 1510 static const struct ethtool_ops vector_net_ethtool_ops = { cdc7aaca074d46 Jakub Kicinski 2020-03-05 1511 .supported_coalesce_params = ETHTOOL_COALESCE_TX_USECS, 49da7e64f33e80 Anton Ivanov 2017-11-20 1512 .get_drvinfo = vector_net_get_drvinfo, 49da7e64f33e80 Anton Ivanov 2017-11-20 1513 .get_link = ethtool_op_get_link, 49da7e64f33e80 Anton Ivanov 2017-11-20 1514 .get_ts_info = ethtool_op_get_ts_info, 49da7e64f33e80 Anton Ivanov 2017-11-20 1515 .get_ringparam = vector_get_ringparam, 49da7e64f33e80 Anton Ivanov 2017-11-20 1516 .get_strings = vector_get_strings, 49da7e64f33e80 Anton Ivanov 2017-11-20 1517 .get_sset_count = vector_get_sset_count, 49da7e64f33e80 Anton Ivanov 2017-11-20 1518 .get_ethtool_stats = vector_get_ethtool_stats, 49da7e64f33e80 Anton Ivanov 2017-11-20 @1519 .get_coalesce = vector_get_coalesce, 49da7e64f33e80 Anton Ivanov 2017-11-20 1520 .set_coalesce = vector_set_coalesce, 9807019a62dc67 Anton Ivanov 2019-10-02 1521 .flash_device = vector_net_load_bpf_flash, 49da7e64f33e80 Anton Ivanov 2017-11-20 1522 }; 49da7e64f33e80 Anton Ivanov 2017-11-20 1523 49da7e64f33e80 Anton Ivanov 2017-11-20 1524 :::::: The code at line 1519 was first introduced by commit :::::: 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb High Performance UML Vector Network Driver :::::: TO: Anton Ivanov :::::: CC: Richard Weinberger --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org