Hi Marcin,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Marcin-Szycik/ice-GTP-support-in-switchdev/20220205-005556
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 41414c9bdbb87cc5fbeee7dfc33137a96710fcac
config: arm64-randconfig-s032-20220208 (https://download.01.org/0day-ci/archive/20220209/202202091756.K9IQ7bnX-lkp(a)intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/926dc9532fd0b964087f8d72f0331efe70cd25bc
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Marcin-Szycik/ice-GTP-support-in-switchdev/20220205-005556
        git checkout 926dc9532fd0b964087f8d72f0331efe70cd25bc
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/net/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/net/gtp.c:868:43: sparse: sparse: cast to restricted __be16
>> drivers/net/gtp.c:868:41: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __be16 [usertype] local_udp_port @@     got unsigned short [usertype] @@
   drivers/net/gtp.c:868:41: sparse:     expected restricted __be16 [usertype] local_udp_port
   drivers/net/gtp.c:868:41: sparse:     got unsigned short [usertype]
   drivers/net/gtp.c:870:43: sparse: sparse: cast to restricted __be16
   drivers/net/gtp.c:870:41: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __be16 [usertype] local_udp_port @@     got unsigned short [usertype] @@
   drivers/net/gtp.c:870:41: sparse:     expected restricted __be16 [usertype] local_udp_port
   drivers/net/gtp.c:870:41: sparse:     got unsigned short [usertype]

vim +868 drivers/net/gtp.c

   855	
   856	static struct sock *gtp_encap_create_sock(int type, struct gtp_dev *gtp)
   857	{
   858		struct udp_tunnel_sock_cfg tuncfg = {};
   859		struct udp_port_cfg udp_conf = {
   860			.local_ip.s_addr	= htonl(INADDR_ANY),
   861			.family			= AF_INET,
   862		};
   863		struct net *net = gtp->net;
   864		struct socket *sock;
   865		int err;
   866	
   867		if (type == UDP_ENCAP_GTP0)
 > 868			udp_conf.local_udp_port = ntohs(GTP0_PORT);
   869		else if (type == UDP_ENCAP_GTP1U)
   870			udp_conf.local_udp_port = ntohs(GTP1U_PORT);
   871		else
   872			return ERR_PTR(-EINVAL);
   873	
   874		err = udp_sock_create(net, &udp_conf, &sock);
   875		if (err)
   876			return ERR_PTR(err);
   877	
   878		tuncfg.sk_user_data = gtp;
   879		tuncfg.encap_type = type;
   880		tuncfg.encap_rcv = gtp_encap_recv;
   881		tuncfg.encap_destroy = NULL;
   882	
   883		setup_udp_tunnel_sock(net, sock, &tuncfg);
   884	
   885		return sock->sk;
   886	}
   887	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org