Hi Pablo, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Pablo-Neira-Ayuso/netfilter-flowtable-bridge-and-vlan-enhancements/20201015-091818 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 50172733d01c3097b23ac8d45bf1fff72af0ba98 config: riscv-randconfig-s031-20201015 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-rc1-dirty # https://github.com/0day-ci/linux/commit/fbe6da32dfe77e080e449951ba7a5d3308938304 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Pablo-Neira-Ayuso/netfilter-flowtable-bridge-and-vlan-enhancements/20201015-091818 git checkout fbe6da32dfe77e080e449951ba7a5d3308938304 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot "sparse warnings: (new ones prefixed by >>)" >> net/8021q/vlan_dev.c:776:23: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be16 [usertype] id @@ got unsigned short [usertype] vlan_id @@ >> net/8021q/vlan_dev.c:776:23: sparse: expected restricted __be16 [usertype] id >> net/8021q/vlan_dev.c:776:23: sparse: got unsigned short [usertype] vlan_id vim +776 net/8021q/vlan_dev.c 769 770 static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx, 771 struct net_device_path *path) 772 { 773 struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev); 774 775 path->type = DEV_PATH_VLAN; > 776 path->vlan.id = vlan->vlan_id; 777 path->vlan.proto = vlan->vlan_proto; 778 path->dev = ctx->dev; 779 ctx->dev = vlan->real_dev; 780 781 return 0; 782 } 783 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org