From: kernel test robot <lkp@intel.com>
To: Benjamin Tissoires <bentiss@kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>,
Jiri Kosina <jikos@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Alexei Starovoitov <ast@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
linux-input@vger.kernel.org, linux-doc@vger.kernel.org,
Benjamin Tissoires <bentiss@kernel.org>
Subject: Re: [PATCH HID 03/13] HID: bpf: implement HID-BPF through bpf_struct_ops
Date: Fri, 31 May 2024 20:29:28 +0800 [thread overview]
Message-ID: <202405312035.U1rZN04z-lkp@intel.com> (raw)
In-Reply-To: <20240528-hid_bpf_struct_ops-v1-3-8c6663df27d8@kernel.org>
Hi Benjamin,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 70ec81c2e2b4005465ad0d042e90b36087c36104]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Tissoires/HID-rename-struct-hid_bpf_ops-into-hid_ops/20240528-212222
base: 70ec81c2e2b4005465ad0d042e90b36087c36104
patch link: https://lore.kernel.org/r/20240528-hid_bpf_struct_ops-v1-3-8c6663df27d8%40kernel.org
patch subject: [PATCH HID 03/13] HID: bpf: implement HID-BPF through bpf_struct_ops
config: i386-buildonly-randconfig-002-20240531 (https://download.01.org/0day-ci/archive/20240531/202405312035.U1rZN04z-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240531/202405312035.U1rZN04z-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405312035.U1rZN04z-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/linux/bpf_verifier.h:7:0,
from drivers/hid/bpf/hid_bpf_struct_ops.c:10:
drivers/hid/bpf/hid_bpf_struct_ops.c: In function 'hid_bpf_struct_ops_init':
>> include/linux/bpf.h:1844:50: warning: statement with no effect [-Wunused-value]
#define register_bpf_struct_ops(st_ops, type) ({ (void *)(st_ops); 0; })
^~~~~~~~~~~~~~~~
drivers/hid/bpf/hid_bpf_struct_ops.c:244:9: note: in expansion of macro 'register_bpf_struct_ops'
return register_bpf_struct_ops(&bpf_hid_bpf_ops, hid_bpf_ops);
^~~~~~~~~~~~~~~~~~~~~~~
vim +1844 include/linux/bpf.h
c196906d50e360d Hou Tao 2021-10-25 1834
c196906d50e360d Hou Tao 2021-10-25 1835 int bpf_struct_ops_test_run(struct bpf_prog *prog, const union bpf_attr *kattr,
c196906d50e360d Hou Tao 2021-10-25 1836 union bpf_attr __user *uattr);
c196906d50e360d Hou Tao 2021-10-25 1837 #endif
f6be98d19985411 Kui-Feng Lee 2024-01-19 1838 int bpf_struct_ops_desc_init(struct bpf_struct_ops_desc *st_ops_desc,
f6be98d19985411 Kui-Feng Lee 2024-01-19 1839 struct btf *btf,
f6be98d19985411 Kui-Feng Lee 2024-01-19 1840 struct bpf_verifier_log *log);
1338b93346587a2 Kui-Feng Lee 2024-01-19 1841 void bpf_map_struct_ops_info_fill(struct bpf_map_info *info, struct bpf_map *map);
1611603537a4b88 Kui-Feng Lee 2024-02-08 1842 void bpf_struct_ops_desc_release(struct bpf_struct_ops_desc *st_ops_desc);
27ae7997a66174c Martin KaFai Lau 2020-01-08 1843 #else
f6be98d19985411 Kui-Feng Lee 2024-01-19 @1844 #define register_bpf_struct_ops(st_ops, type) ({ (void *)(st_ops); 0; })
85d33df357b6346 Martin KaFai Lau 2020-01-08 1845 static inline bool bpf_try_module_get(const void *data, struct module *owner)
85d33df357b6346 Martin KaFai Lau 2020-01-08 1846 {
85d33df357b6346 Martin KaFai Lau 2020-01-08 1847 return try_module_get(owner);
85d33df357b6346 Martin KaFai Lau 2020-01-08 1848 }
85d33df357b6346 Martin KaFai Lau 2020-01-08 1849 static inline void bpf_module_put(const void *data, struct module *owner)
85d33df357b6346 Martin KaFai Lau 2020-01-08 1850 {
85d33df357b6346 Martin KaFai Lau 2020-01-08 1851 module_put(owner);
85d33df357b6346 Martin KaFai Lau 2020-01-08 1852 }
85d33df357b6346 Martin KaFai Lau 2020-01-08 1853 static inline int bpf_struct_ops_map_sys_lookup_elem(struct bpf_map *map,
85d33df357b6346 Martin KaFai Lau 2020-01-08 1854 void *key,
85d33df357b6346 Martin KaFai Lau 2020-01-08 1855 void *value)
85d33df357b6346 Martin KaFai Lau 2020-01-08 1856 {
85d33df357b6346 Martin KaFai Lau 2020-01-08 1857 return -EINVAL;
85d33df357b6346 Martin KaFai Lau 2020-01-08 1858 }
68b04864ca425d1 Kui-Feng Lee 2023-03-22 1859 static inline int bpf_struct_ops_link_create(union bpf_attr *attr)
68b04864ca425d1 Kui-Feng Lee 2023-03-22 1860 {
68b04864ca425d1 Kui-Feng Lee 2023-03-22 1861 return -EOPNOTSUPP;
68b04864ca425d1 Kui-Feng Lee 2023-03-22 1862 }
1338b93346587a2 Kui-Feng Lee 2024-01-19 1863 static inline void bpf_map_struct_ops_info_fill(struct bpf_map_info *info, struct bpf_map *map)
1338b93346587a2 Kui-Feng Lee 2024-01-19 1864 {
1338b93346587a2 Kui-Feng Lee 2024-01-19 1865 }
68b04864ca425d1 Kui-Feng Lee 2023-03-22 1866
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2024-05-31 12:30 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-28 13:14 [PATCH HID 00/13] HID: convert HID-BPF into using bpf_struct_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 01/13] HID: rename struct hid_bpf_ops into hid_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 02/13] HID: bpf: add hid_get/put_device() helpers Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 03/13] HID: bpf: implement HID-BPF through bpf_struct_ops Benjamin Tissoires
2024-05-29 4:02 ` Alexei Starovoitov
2024-05-29 7:38 ` Benjamin Tissoires
2024-05-31 18:52 ` Alexei Starovoitov
2024-05-31 12:29 ` kernel test robot [this message]
2024-05-28 13:14 ` [PATCH HID 04/13] selftests/hid: convert the hid_bpf selftests with struct_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 05/13] HID: samples: convert the 2 HID-BPF samples into struct_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 06/13] HID: bpf: add defines for HID-BPF SEC in in-tree bpf fixes Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 07/13] HID: bpf: convert in-tree fixes into struct_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 08/13] HID: bpf: remove tracing HID-BPF capability Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 09/13] selftests/hid: add subprog call test Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 10/13] Documentation: HID: amend HID-BPF for struct_ops Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 11/13] Documentation: HID: add a small blurb on udev-hid-bpf Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 12/13] HID: bpf: Artist24: remove unused variable Benjamin Tissoires
2024-05-28 13:14 ` [PATCH HID 13/13] HID: bpf: error on warnings when compiling bpf objects Benjamin Tissoires
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