selftests/bpf: Add missing prototypes for several test kfuncs

Adding missing prototypes for several kfuncs that are used by
test_verifier tests. We don't really need kfunc prototypes for
these tests, but adding them to silence 'make W=1' build and
to have all test kfuncs declarations in bpf_testmod_kfunc.h.

Also moving __diag_pop for -Wmissing-prototypes to cover also
bpf_testmod_test_write and bpf_testmod_test_read and adding
bpf_fentry_shadow_test in there as well. All of them need to
be exported, but there's no need for declarations.

Fixes: 65eb006d85a2 ("bpf: Move kernel test kfuncs to bpf_testmod")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Closes: https://lore.kernel.org/oe-kbuild-all/202306051319.EihCQZPs-lkp@intel.com
Link: https://lore.kernel.org/bpf/20230607224046.236510-1-jolsa@kernel.org

1 files changed, 7 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h
index 9693c626646b..f5c5b1375c24 100644
--- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h
+++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h
@@ -97,4 +97,11 @@ void bpf_kfunc_call_test_mem_len_fail2(__u64 *mem, int len) __ksym;
 
 void bpf_kfunc_call_test_destructive(void) __ksym;
 
+void bpf_kfunc_call_test_offset(struct prog_test_ref_kfunc *p);
+struct prog_test_member *bpf_kfunc_call_memb_acquire(void);
+void bpf_kfunc_call_memb1_release(struct prog_test_member1 *p);
+void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p);
+void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p);
+void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p);
+void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len);
 #endif /* _BPF_TESTMOD_KFUNC_H */