Hi Tom, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Tom-Herbert/txhash-Make-hash-ret... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 2a2b6e3640c43a808dcb5226963e2cc0669294b1 config: alpha-randconfig-r033-20210809 (attached as .config) compiler: alpha-linux-gcc (GCC) 10.3.0 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/0day-ci/linux/commit/c622a47fb5a95eba759d650cba863ff96... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tom-Herbert/txhash-Make-hash-rethink-configurable-and-change-the-default/20210810-025605 git checkout c622a47fb5a95eba759d650cba863ff963bb1562 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash kernel/bpf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/linux/if_vlan.h:10, from include/linux/filter.h:21, from kernel/bpf/core.c:21: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ kernel/bpf/core.c:1358:12: warning: no previous prototype for 'bpf_probe_read_kernel' [-Wmissing-prototypes] 1358 | u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr) | ^~~~~~~~~~~~~~~~~~~~~ -- In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/trace/events/xdp.h:8, from include/linux/bpf_trace.h:5, from kernel/bpf/syscall.c:5: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ -- In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/linux/if_vlan.h:10, from include/linux/filter.h:21, from include/linux/bpf_verifier.h:9, from kernel/bpf/verifier.c:12: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ In file included from include/linux/bpf_verifier.h:9, from kernel/bpf/verifier.c:12: kernel/bpf/verifier.c: In function 'jit_subprogs': include/linux/filter.h:368:4: warning: cast between incompatible function types from 'unsigned int (*)(const void *, const struct bpf_insn *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12461:16: note: in expansion of macro 'BPF_CAST_CALL' 12461 | insn->imm = BPF_CAST_CALL(func[subprog]->bpf_func) - | ^~~~~~~~~~~~~ kernel/bpf/verifier.c: In function 'do_misc_fixups': include/linux/filter.h:368:4: warning: cast between incompatible function types from 'void * (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12942:17: note: in expansion of macro 'BPF_CAST_CALL' 12942 | insn->imm = BPF_CAST_CALL(ops->map_lookup_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *, void *, u64)' {aka 'int (* const)(struct bpf_map *, void *, void *, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12946:17: note: in expansion of macro 'BPF_CAST_CALL' 12946 | insn->imm = BPF_CAST_CALL(ops->map_update_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12950:17: note: in expansion of macro 'BPF_CAST_CALL' 12950 | insn->imm = BPF_CAST_CALL(ops->map_delete_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *, u64)' {aka 'int (* const)(struct bpf_map *, void *, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12954:17: note: in expansion of macro 'BPF_CAST_CALL' 12954 | insn->imm = BPF_CAST_CALL(ops->map_push_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12958:17: note: in expansion of macro 'BPF_CAST_CALL' 12958 | insn->imm = BPF_CAST_CALL(ops->map_pop_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12962:17: note: in expansion of macro 'BPF_CAST_CALL' 12962 | insn->imm = BPF_CAST_CALL(ops->map_peek_elem) - | ^~~~~~~~~~~~~ include/linux/filter.h:368:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, u32, u64)' {aka 'int (* const)(struct bpf_map *, unsigned int, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ kernel/bpf/verifier.c:12966:17: note: in expansion of macro 'BPF_CAST_CALL' 12966 | insn->imm = BPF_CAST_CALL(ops->map_redirect) - | ^~~~~~~~~~~~~ -- In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/linux/if_vlan.h:10, from include/linux/filter.h:21, from kernel/bpf/hashtab.c:8: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ In file included from kernel/bpf/hashtab.c:8: kernel/bpf/hashtab.c: In function 'htab_map_gen_lookup': include/linux/filter.h:368:4: warning: cast between incompatible function types from 'void * (*)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ include/linux/filter.h:376:14: note: in definition of macro 'BPF_EMIT_CALL' 376 | .imm = ((FUNC) - __bpf_call_base) }) | ^~~~ kernel/bpf/hashtab.c:671:26: note: in expansion of macro 'BPF_CAST_CALL' 671 | *insn++ = BPF_EMIT_CALL(BPF_CAST_CALL(__htab_map_lookup_elem)); | ^~~~~~~~~~~~~ kernel/bpf/hashtab.c: In function 'htab_lru_map_gen_lookup': include/linux/filter.h:368:4: warning: cast between incompatible function types from 'void * (*)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ include/linux/filter.h:376:14: note: in definition of macro 'BPF_EMIT_CALL' 376 | .imm = ((FUNC) - __bpf_call_base) }) | ^~~~ kernel/bpf/hashtab.c:712:26: note: in expansion of macro 'BPF_CAST_CALL' 712 | *insn++ = BPF_EMIT_CALL(BPF_CAST_CALL(__htab_map_lookup_elem)); | ^~~~~~~~~~~~~ kernel/bpf/hashtab.c: In function 'htab_of_map_gen_lookup': include/linux/filter.h:368:4: warning: cast between incompatible function types from 'void * (*)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] 368 | ((u64 (*)(u64, u64, u64, u64, u64))(x)) | ^ include/linux/filter.h:376:14: note: in definition of macro 'BPF_EMIT_CALL' 376 | .imm = ((FUNC) - __bpf_call_base) }) | ^~~~ kernel/bpf/hashtab.c:2400:26: note: in expansion of macro 'BPF_CAST_CALL' 2400 | *insn++ = BPF_EMIT_CALL(BPF_CAST_CALL(__htab_map_lookup_elem)); | ^~~~~~~~~~~~~ -- In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/net/sock.h:46, from include/linux/tcp.h:19, from include/linux/ipv6.h:91, from include/net/ipv6.h:12, from kernel/bpf/lpm_trie.c:15: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ In file included from <command-line>: include/net/sock.h: In function 'sk_rethink_txhash': 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:279:13: note: in definition of macro '__unqual_scalar_typeof' 279 | _Generic((x), \ | ^ include/asm-generic/rwonce.h:50:2: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ In file included from arch/alpha/include/asm/rwonce.h:33, from include/linux/compiler.h:264, from include/linux/kernel.h:11, from include/linux/list.h:9, from include/linux/timer.h:5, from include/linux/workqueue.h:9, from include/linux/bpf.h:9, from kernel/bpf/lpm_trie.c:9: 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/asm-generic/rwonce.h:44:72: note: in definition of macro '__READ_ONCE' 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ -- In file included from include/net/net_namespace.h:16, from include/linux/netdevice.h:37, from include/linux/if_vlan.h:10, from include/linux/filter.h:21, from include/linux/bpf_verifier.h:9, from kernel/bpf/btf.c:19: 14 | unsigend int sysctl_txrehash_mode; | ^~~~~~~~ In file included from <command-line>: include/net/sock.h: In function 'sk_rethink_txhash': 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert' 308 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' 328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert' 36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ | ^~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type' 49 | compiletime_assert_rwonce_type(x); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/linux/compiler_types.h:279:13: note: in definition of macro '__unqual_scalar_typeof' 279 | _Generic((x), \ | ^ include/asm-generic/rwonce.h:50:2: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ In file included from arch/alpha/include/asm/rwonce.h:33, from include/linux/compiler.h:264, from include/linux/ptrace.h:5, from include/uapi/asm-generic/bpf_perf_event.h:4, from ./arch/alpha/include/generated/uapi/asm/bpf_perf_event.h:1, from include/uapi/linux/bpf_perf_event.h:11, from kernel/bpf/btf.c:6: 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^ include/asm-generic/rwonce.h:44:72: note: in definition of macro '__READ_ONCE' 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ include/net/sock.h:1956:16: note: in expansion of macro 'READ_ONCE' 1956 | rehash_mode = READ_ONCE(sock_net(sk)->core.sysctl_txrehash_mode); | ^~~~~~~~~ kernel/bpf/btf.c: In function 'btf_seq_show': kernel/bpf/btf.c:5748:22: warning: function 'btf_seq_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 5748 | seq_vprintf((struct seq_file *)show->target, fmt, args); | ^~~~~~~~ kernel/bpf/btf.c: In function 'btf_snprintf_show': kernel/bpf/btf.c:5785:2: warning: function 'btf_snprintf_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 5785 | len = vsnprintf(show->target, ssnprintf->len_left, fmt, args); | ^~~ vim +/unsigend +14 include/net/netns/core.h 7 8 struct netns_core { 9 /* core sysctls */ 10 struct ctl_table_header *sysctl_hdr; 11 12 int sysctl_somaxconn; 13 15 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org