Hi Daniele, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Daniele-Palmas/add-tx-packets-aggregation-to-ethtool-and-rmnet/20221110-021152 patch link: https://lore.kernel.org/r/20221109180249.4721-4-dnlplm%40gmail.com patch subject: [PATCH net-next 3/3] net: qualcomm: rmnet: add ethtool support for configuring tx aggregation config: arm-randconfig-c033-20221110 compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/1d616d4cfe80553017ff177ae01d4bbfcaf48213 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Daniele-Palmas/add-tx-packets-aggregation-to-ethtool-and-rmnet/20221110-021152 git checkout 1d616d4cfe80553017ff177ae01d4bbfcaf48213 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.o: in function `rmnet_get_coalesce': >> drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c:226: undefined reference to `__aeabi_uldivmod' vim +226 drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c 212 213 static int rmnet_get_coalesce(struct net_device *dev, 214 struct ethtool_coalesce *coal, 215 struct kernel_ethtool_coalesce *kernel_coal, 216 struct netlink_ext_ack *extack) 217 { 218 struct rmnet_priv *priv = netdev_priv(dev); 219 struct rmnet_port *port; 220 221 port = rmnet_get_port_rtnl(priv->real_dev); 222 223 memset(kernel_coal, 0, sizeof(*kernel_coal)); 224 kernel_coal->tx_max_aggr_size = port->egress_agg_params.agg_size; 225 kernel_coal->tx_max_aggr_frames = port->egress_agg_params.agg_count; > 226 kernel_coal->tx_usecs_aggr_time = port->egress_agg_params.agg_time_nsec / NSEC_PER_USEC; 227 228 return 0; 229 } 230 -- 0-DAY CI Kernel Test Service https://01.org/lkp