Hi Alexander, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next.git master head: ff2dfbe03c56d6b537d26025dc56b900fe6eae12 commit: c0037234c69e275990fbb4e8c006869b53220e84 [4/8] net: add net available in build_state config: riscv-defconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout c0037234c69e275990fbb4e8c006869b53220e84 # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/ipv4/fib_semantics.c: In function 'fib_nh_common_init': net/ipv4/fib_semantics.c:593:30: warning: passing argument 1 of 'lwtunnel_build_state' makes integer from pointer without a cast [-Wint-conversion] err = lwtunnel_build_state(net, encap_type, encap, ^~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'u16 {aka short unsigned int}' but argument is of type 'struct net *' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:593:35: warning: passing argument 2 of 'lwtunnel_build_state' makes pointer from integer without a cast [-Wint-conversion] err = lwtunnel_build_state(net, encap_type, encap, ^~~~~~~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'struct nlattr *' but argument is of type 'u16 {aka short unsigned int}' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:593:47: warning: passing argument 3 of 'lwtunnel_build_state' makes integer from pointer without a cast [-Wint-conversion] err = lwtunnel_build_state(net, encap_type, encap, ^~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'unsigned int' but argument is of type 'struct nlattr *' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:594:9: warning: passing argument 4 of 'lwtunnel_build_state' makes pointer from integer without a cast [-Wint-conversion] nhc->nhc_family, cfg, &lwtstate, ^~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'const void *' but argument is of type 'u8 {aka unsigned char}' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ nhc->nhc_family, cfg, &lwtstate, ^ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'struct netlink_ext_ack *' but argument is of type 'struct lwtunnel_state **' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ err = lwtunnel_build_state(net, encap_type, encap, ^~~~~~~~~~~~~~~~~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: declared here static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c: In function 'fib_encap_match': net/ipv4/fib_semantics.c:831:29: warning: passing argument 1 of 'lwtunnel_build_state' makes integer from pointer without a cast [-Wint-conversion] ret = lwtunnel_build_state(net, encap_type, encap, AF_INET, ^~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'u16 {aka short unsigned int}' but argument is of type 'struct net *' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:831:34: warning: passing argument 2 of 'lwtunnel_build_state' makes pointer from integer without a cast [-Wint-conversion] ret = lwtunnel_build_state(net, encap_type, encap, AF_INET, ^~~~~~~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'struct nlattr *' but argument is of type 'u16 {aka short unsigned int}' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:831:46: warning: passing argument 3 of 'lwtunnel_build_state' makes integer from pointer without a cast [-Wint-conversion] ret = lwtunnel_build_state(net, encap_type, encap, AF_INET, ^~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'unsigned int' but argument is of type 'struct nlattr *' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ In file included from net/ipv4/fib_semantics.c:19:0: include/linux/socket.h:165:18: warning: passing argument 4 of 'lwtunnel_build_state' makes pointer from integer without a cast [-Wint-conversion] #define AF_INET 2 /* Internet IP Protocol */ ^ net/ipv4/fib_semantics.c:831:53: note: in expansion of macro 'AF_INET' ret = lwtunnel_build_state(net, encap_type, encap, AF_INET, ^~~~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'const void *' but argument is of type 'int' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:832:8: error: passing argument 5 of 'lwtunnel_build_state' from incompatible pointer type [-Werror=incompatible-pointer-types] cfg, &lwtstate, extack); ^~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'struct lwtunnel_state **' but argument is of type 'const struct fib_config *' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:832:13: error: passing argument 6 of 'lwtunnel_build_state' from incompatible pointer type [-Werror=incompatible-pointer-types] cfg, &lwtstate, extack); ^ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: expected 'struct netlink_ext_ack *' but argument is of type 'struct lwtunnel_state **' static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ net/ipv4/fib_semantics.c:831:8: error: too many arguments to function 'lwtunnel_build_state' ret = lwtunnel_build_state(net, encap_type, encap, AF_INET, ^~~~~~~~~~~~~~~~~~~~ In file included from net/ipv4/fib_semantics.c:44:0: include/net/lwtunnel.h:212:19: note: declared here static inline int lwtunnel_build_state(u16 encap_type, ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/lwtunnel_build_state +594 net/ipv4/fib_semantics.c 572 573 int fib_nh_common_init(struct net *net, struct fib_nh_common *nhc, 574 struct nlattr *encap, u16 encap_type, 575 void *cfg, gfp_t gfp_flags, 576 struct netlink_ext_ack *extack) 577 { 578 int err; 579 580 nhc->nhc_pcpu_rth_output = alloc_percpu_gfp(struct rtable __rcu *, 581 gfp_flags); 582 if (!nhc->nhc_pcpu_rth_output) 583 return -ENOMEM; 584 585 if (encap) { 586 struct lwtunnel_state *lwtstate; 587 588 if (encap_type == LWTUNNEL_ENCAP_NONE) { 589 NL_SET_ERR_MSG(extack, "LWT encap type not specified"); 590 err = -EINVAL; 591 goto lwt_failure; 592 } 595 extack); 596 if (err) 597 goto lwt_failure; 598 599 nhc->nhc_lwtstate = lwtstate_get(lwtstate); 600 } 601 602 return 0; 603 604 lwt_failure: 605 rt_fibinfo_free_cpus(nhc->nhc_pcpu_rth_output); 606 nhc->nhc_pcpu_rth_output = NULL; 607 return err; 608 } 609 EXPORT_SYMBOL_GPL(fib_nh_common_init); 610 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org