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Message-ID: <202305162331.T8PxpSye-lkp@intel.com>
Date: Wed, 17 May 2023 00:11:40 +0800
From: kernel test robot <lkp@...el.com>
To: Viktor Malik <vmalik@...hat.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Alexei Starovoitov <ast@...nel.org>
Subject: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:271:14:
warning: no previous prototype for 'bpf_fentry_shadow_test'
Hi Viktor,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6
commit: aa3d65de4b9004d799f97700751a86d3ebd7d5f9 bpf/selftests: Test fentry attachment to shadowed functions
date: 9 weeks ago
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce:
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aa3d65de4b9004d799f97700751a86d3ebd7d5f9
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout aa3d65de4b9004d799f97700751a86d3ebd7d5f9
make O=/tmp/kselftest headers
make O=/tmp/kselftest -C tools/testing/selftests
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305162331.T8PxpSye-lkp@intel.com/
All warnings (new ones prefixed by >>):
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:32:1: warning: no previous prototype for 'bpf_testmod_test_struct_arg_1' [-Wmissing-prototypes]
32 | bpf_testmod_test_struct_arg_1(struct bpf_testmod_struct_arg_2 a, int b, int c) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:38:1: warning: no previous prototype for 'bpf_testmod_test_struct_arg_2' [-Wmissing-prototypes]
38 | bpf_testmod_test_struct_arg_2(int a, struct bpf_testmod_struct_arg_2 b, int c) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:44:1: warning: no previous prototype for 'bpf_testmod_test_struct_arg_3' [-Wmissing-prototypes]
44 | bpf_testmod_test_struct_arg_3(int a, int b, struct bpf_testmod_struct_arg_2 c) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:50:1: warning: no previous prototype for 'bpf_testmod_test_struct_arg_4' [-Wmissing-prototypes]
50 | bpf_testmod_test_struct_arg_4(struct bpf_testmod_struct_arg_1 a, int b,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:57:1: warning: no previous prototype for 'bpf_testmod_test_struct_arg_5' [-Wmissing-prototypes]
57 | bpf_testmod_test_struct_arg_5(void) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:63:1: warning: no previous prototype for 'bpf_testmod_test_mod_kfunc' [-Wmissing-prototypes]
63 | bpf_testmod_test_mod_kfunc(int i)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:68:17: warning: no previous prototype for 'bpf_iter_testmod_seq_new' [-Wmissing-prototypes]
68 | __bpf_kfunc int bpf_iter_testmod_seq_new(struct bpf_iter_testmod_seq *it, s64 value, int cnt)
| ^~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:81:18: warning: no previous prototype for 'bpf_iter_testmod_seq_next' [-Wmissing-prototypes]
81 | __bpf_kfunc s64 *bpf_iter_testmod_seq_next(struct bpf_iter_testmod_seq* it)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:91:18: warning: no previous prototype for 'bpf_iter_testmod_seq_destroy' [-Wmissing-prototypes]
91 | __bpf_kfunc void bpf_iter_testmod_seq_destroy(struct bpf_iter_testmod_seq *it)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:109:1: warning: no previous prototype for 'bpf_testmod_test_btf_type_tag_user_1' [-Wmissing-prototypes]
109 | bpf_testmod_test_btf_type_tag_user_1(struct bpf_testmod_btf_type_tag_1 __user *arg) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:117:1: warning: no previous prototype for 'bpf_testmod_test_btf_type_tag_user_2' [-Wmissing-prototypes]
117 | bpf_testmod_test_btf_type_tag_user_2(struct bpf_testmod_btf_type_tag_2 *arg) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:122:1: warning: no previous prototype for 'bpf_testmod_test_btf_type_tag_percpu_1' [-Wmissing-prototypes]
122 | bpf_testmod_test_btf_type_tag_percpu_1(struct bpf_testmod_btf_type_tag_1 __percpu *arg) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:127:1: warning: no previous prototype for 'bpf_testmod_test_btf_type_tag_percpu_2' [-Wmissing-prototypes]
127 | bpf_testmod_test_btf_type_tag_percpu_2(struct bpf_testmod_btf_type_tag_3 *arg) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:131:14: warning: no previous prototype for 'bpf_testmod_loop_test' [-Wmissing-prototypes]
131 | noinline int bpf_testmod_loop_test(int n)
| ^~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:143:30: warning: no previous prototype for 'bpf_testmod_return_ptr' [-Wmissing-prototypes]
143 | __weak noinline struct file *bpf_testmod_return_ptr(int arg)
| ^~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:159:14: warning: no previous prototype for 'bpf_testmod_fentry_test1' [-Wmissing-prototypes]
159 | noinline int bpf_testmod_fentry_test1(int a)
| ^~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:164:14: warning: no previous prototype for 'bpf_testmod_fentry_test2' [-Wmissing-prototypes]
164 | noinline int bpf_testmod_fentry_test2(int a, u64 b)
| ^~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:169:14: warning: no previous prototype for 'bpf_testmod_fentry_test3' [-Wmissing-prototypes]
169 | noinline int bpf_testmod_fentry_test3(char a, int b, u64 c)
| ^~~~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:177:1: warning: no previous prototype for 'bpf_testmod_test_read' [-Wmissing-prototypes]
177 | bpf_testmod_test_read(struct file *file, struct kobject *kobj,
| ^~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:228:1: warning: no previous prototype for 'bpf_testmod_test_write' [-Wmissing-prototypes]
228 | bpf_testmod_test_write(struct file *file, struct kobject *kobj,
| ^~~~~~~~~~~~~~~~~~~~~~
>> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:271:14: warning: no previous prototype for 'bpf_fentry_shadow_test' [-Wmissing-prototypes]
271 | noinline int bpf_fentry_shadow_test(int a)
| ^~~~~~~~~~~~~~~~~~~~~~
vim +/bpf_fentry_shadow_test +271 tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
270
> 271 noinline int bpf_fentry_shadow_test(int a)
272 {
273 return a + 2;
274 }
275 EXPORT_SYMBOL_GPL(bpf_fentry_shadow_test);
276
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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