tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0066f1b0e27556381402db3ff31f85d2a2265858 commit: 8218ccb5bd68976ed5d75028ef50c13a857eee25 selftests/bpf: Add tests for kfunc register offset checks date: 6 months ago config: x86_64-randconfig-a003-20220829 compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8218ccb5bd68976ed5d75028ef50c13a857eee25 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8218ccb5bd68976ed5d75028ef50c13a857eee25 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash net/bpf/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): net/bpf/test_run.c:206:14: warning: no previous declaration for 'bpf_fentry_test1' [-Wmissing-declarations] int noinline bpf_fentry_test1(int a) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:213:14: warning: no previous declaration for 'bpf_fentry_test2' [-Wmissing-declarations] int noinline bpf_fentry_test2(int a, u64 b) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:218:14: warning: no previous declaration for 'bpf_fentry_test3' [-Wmissing-declarations] int noinline bpf_fentry_test3(char a, int b, u64 c) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:223:14: warning: no previous declaration for 'bpf_fentry_test4' [-Wmissing-declarations] int noinline bpf_fentry_test4(void *a, char b, int c, u64 d) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:228:14: warning: no previous declaration for 'bpf_fentry_test5' [-Wmissing-declarations] int noinline bpf_fentry_test5(u64 a, void *b, short c, int d, u64 e) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:233:14: warning: no previous declaration for 'bpf_fentry_test6' [-Wmissing-declarations] int noinline bpf_fentry_test6(u64 a, void *b, short c, int d, void *e, u64 f) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:242:14: warning: no previous declaration for 'bpf_fentry_test7' [-Wmissing-declarations] int noinline bpf_fentry_test7(struct bpf_fentry_test_t *arg) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:247:14: warning: no previous declaration for 'bpf_fentry_test8' [-Wmissing-declarations] int noinline bpf_fentry_test8(struct bpf_fentry_test_t *arg) ^~~~~~~~~~~~~~~~ net/bpf/test_run.c:252:14: warning: no previous declaration for 'bpf_modify_return_test' [-Wmissing-declarations] int noinline bpf_modify_return_test(int a, int *b) ^~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:258:14: warning: no previous declaration for 'bpf_kfunc_call_test1' [-Wmissing-declarations] u64 noinline bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d) ^~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:263:14: warning: no previous declaration for 'bpf_kfunc_call_test2' [-Wmissing-declarations] int noinline bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b) ^~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:268:24: warning: no previous declaration for 'bpf_kfunc_call_test3' [-Wmissing-declarations] struct sock * noinline bpf_kfunc_call_test3(struct sock *sk) ^~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:291:1: warning: no previous declaration for 'bpf_kfunc_call_test_acquire' [-Wmissing-declarations] bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:299:15: warning: no previous declaration for 'bpf_kfunc_call_test_release' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ >> net/bpf/test_run.c:303:15: warning: no previous declaration for 'bpf_kfunc_call_memb_release' [-Wmissing-declarations] noinline void bpf_kfunc_call_memb_release(struct prog_test_member *p) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:345:15: warning: no previous declaration for 'bpf_kfunc_call_test_pass_ctx' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:349:15: warning: no previous declaration for 'bpf_kfunc_call_test_pass1' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:353:15: warning: no previous declaration for 'bpf_kfunc_call_test_pass2' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:357:15: warning: no previous declaration for 'bpf_kfunc_call_test_fail1' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:361:15: warning: no previous declaration for 'bpf_kfunc_call_test_fail2' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:365:15: warning: no previous declaration for 'bpf_kfunc_call_test_fail3' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:369:15: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_pass1' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:373:15: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_fail1' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/bpf/test_run.c:377:15: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_fail2' [-Wmissing-declarations] noinline void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/bpf_kfunc_call_memb_release +303 net/bpf/test_run.c 302 > 303 noinline void bpf_kfunc_call_memb_release(struct prog_test_member *p) 304 { 305 } 306 -- 0-DAY CI 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