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From: kernel test robot <lkp@intel.com>
To: Vinicius Costa Gomes <vinicius.gomes@intel.com>, bpf@vger.kernel.org
Cc: kbuild-all@lists.01.org,
	Vinicius Costa Gomes <vinicius.gomes@intel.com>,
	netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
	memxor@gmail.com, kafai@fb.com, andrii@kernel.org,
	songliubraving@fb.com, yhs@fb.com
Subject: Re: [PATCH net v1] bpf: Fix build when CONFIG_BPF_SYSCALL is disabled
Date: Wed, 10 Nov 2021 11:59:46 +0800	[thread overview]
Message-ID: <202111101156.m5ifQ54c-lkp@intel.com> (raw)
In-Reply-To: <20211110010024.31415-1-vinicius.gomes@intel.com>

[-- Attachment #1: Type: text/plain, Size: 33305 bytes --]

Hi Vinicius,

I love your patch! Yet something to improve:

[auto build test ERROR on net/master]

url:    https://github.com/0day-ci/linux/commits/Vinicius-Costa-Gomes/bpf-Fix-build-when-CONFIG_BPF_SYSCALL-is-disabled/20211110-090148
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git fceb07950a7aac43d52d8c6ef580399a8b9b68fe
config: i386-debian-10.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/1e7a382c089da5714e4a9411765e84815cf550f9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Vinicius-Costa-Gomes/bpf-Fix-build-when-CONFIG_BPF_SYSCALL-is-disabled/20211110-090148
        git checkout 1e7a382c089da5714e4a9411765e84815cf550f9
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   kernel/bpf/btf.c: In function 'btf_seq_show':
   kernel/bpf/btf.c:5876:22: warning: function 'btf_seq_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    5876 |  seq_vprintf((struct seq_file *)show->target, fmt, args);
         |                      ^~~~~~~~
   kernel/bpf/btf.c: In function 'btf_snprintf_show':
   kernel/bpf/btf.c:5913:2: warning: function 'btf_snprintf_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    5913 |  len = vsnprintf(show->target, ssnprintf->len_left, fmt, args);
         |  ^~~
   kernel/bpf/btf.c: At top level:
>> kernel/bpf/btf.c:6370:9: error: variable 'bpf_tcp_ca_kfunc_list' has initializer but incomplete type
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |         ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: warning: excess elements in struct initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/mutex.h:109:3: error: extra brace group at end of initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/uapi/linux/btf.h:6,
                    from kernel/bpf/btf.c:4:
>> include/linux/types.h:170:24: error: extra brace group at end of initializer
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/types.h:170:24: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
   include/linux/mutex.h:109:3: warning: excess elements in struct initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:9: error: variable 'prog_test_kfunc_list' has initializer but incomplete type
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |         ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: warning: excess elements in struct initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/mutex.h:109:3: error: extra brace group at end of initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'prog_test_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/uapi/linux/btf.h:6,
                    from kernel/bpf/btf.c:4:
>> include/linux/types.h:170:24: error: extra brace group at end of initializer
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/types.h:170:24: note: (near initialization for 'prog_test_kfunc_list')
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
   include/linux/mutex.h:109:3: warning: excess elements in struct initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'prog_test_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:7,
                    from include/linux/kernel.h:8,
                    from arch/x86/include/asm/percpu.h:27,
                    from arch/x86/include/asm/current.h:6,
                    from include/linux/sched.h:12,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> kernel/bpf/btf.c:6374:26: error: storage size of 'bpf_tcp_ca_kfunc_list' isn't known
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6374:26: error: storage size of 'bpf_tcp_ca_kfunc_list' isn't known
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6375:26: error: storage size of 'prog_test_kfunc_list' isn't known
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6375:26: error: storage size of 'prog_test_kfunc_list' isn't known
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/bpf_tcp_ca_kfunc_list +6370 kernel/bpf/btf.c

14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02  6368  
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02  6369  #define DEFINE_KFUNC_BTF_ID_LIST(name)                                         \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6370  	struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6371  					  __MUTEX_INITIALIZER(name.mutex) };   \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6372  	EXPORT_SYMBOL_GPL(name)
0e32dfc80bae53 Kumar Kartikeya Dwivedi 2021-10-02  6373  
0e32dfc80bae53 Kumar Kartikeya Dwivedi 2021-10-02 @6374  DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
c48e51c8b07aba Kumar Kartikeya Dwivedi 2021-10-02 @6375  DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 34169 bytes --]

WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH net v1] bpf: Fix build when CONFIG_BPF_SYSCALL is disabled
Date: Wed, 10 Nov 2021 11:59:46 +0800	[thread overview]
Message-ID: <202111101156.m5ifQ54c-lkp@intel.com> (raw)
In-Reply-To: <20211110010024.31415-1-vinicius.gomes@intel.com>

[-- Attachment #1: Type: text/plain, Size: 33862 bytes --]

Hi Vinicius,

I love your patch! Yet something to improve:

[auto build test ERROR on net/master]

url:    https://github.com/0day-ci/linux/commits/Vinicius-Costa-Gomes/bpf-Fix-build-when-CONFIG_BPF_SYSCALL-is-disabled/20211110-090148
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git fceb07950a7aac43d52d8c6ef580399a8b9b68fe
config: i386-debian-10.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/1e7a382c089da5714e4a9411765e84815cf550f9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Vinicius-Costa-Gomes/bpf-Fix-build-when-CONFIG_BPF_SYSCALL-is-disabled/20211110-090148
        git checkout 1e7a382c089da5714e4a9411765e84815cf550f9
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   kernel/bpf/btf.c: In function 'btf_seq_show':
   kernel/bpf/btf.c:5876:22: warning: function 'btf_seq_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    5876 |  seq_vprintf((struct seq_file *)show->target, fmt, args);
         |                      ^~~~~~~~
   kernel/bpf/btf.c: In function 'btf_snprintf_show':
   kernel/bpf/btf.c:5913:2: warning: function 'btf_snprintf_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    5913 |  len = vsnprintf(show->target, ssnprintf->len_left, fmt, args);
         |  ^~~
   kernel/bpf/btf.c: At top level:
>> kernel/bpf/btf.c:6370:9: error: variable 'bpf_tcp_ca_kfunc_list' has initializer but incomplete type
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |         ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: warning: excess elements in struct initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/mutex.h:109:3: error: extra brace group at end of initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/uapi/linux/btf.h:6,
                    from kernel/bpf/btf.c:4:
>> include/linux/types.h:170:24: error: extra brace group at end of initializer
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/types.h:170:24: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
   include/linux/mutex.h:109:3: warning: excess elements in struct initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'bpf_tcp_ca_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:9: error: variable 'prog_test_kfunc_list' has initializer but incomplete type
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |         ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6370:55: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                                       ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: warning: excess elements in struct initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   kernel/bpf/btf.c:6370:36: note: in expansion of macro 'LIST_HEAD_INIT'
    6370 |  struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
         |                                    ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/mutex.h:109:3: error: extra brace group at end of initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'prog_test_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/uapi/linux/btf.h:6,
                    from kernel/bpf/btf.c:4:
>> include/linux/types.h:170:24: error: extra brace group at end of initializer
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/types.h:170:24: note: (near initialization for 'prog_test_kfunc_list')
     170 | #define ATOMIC_INIT(i) { (i) }
         |                        ^
   include/linux/atomic/atomic-long.h:19:30: note: in expansion of macro 'ATOMIC_INIT'
      19 | #define ATOMIC_LONG_INIT(i)  ATOMIC_INIT(i)
         |                              ^~~~~~~~~~~
   include/linux/mutex.h:109:14: note: in expansion of macro 'ATOMIC_LONG_INIT'
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |              ^~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> include/linux/list.h:21:30: error: extra brace group at end of initializer
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/list.h:21:30: note: (near initialization for 'prog_test_kfunc_list')
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                              ^
   include/linux/mutex.h:111:18: note: in expansion of macro 'LIST_HEAD_INIT'
     111 |   , .wait_list = LIST_HEAD_INIT(lockname.wait_list) \
         |                  ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:34: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                  ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6371:32: error: invalid use of undefined type 'struct kfunc_btf_id_list'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |                                ^
   include/linux/list.h:21:43: note: in definition of macro 'LIST_HEAD_INIT'
      21 | #define LIST_HEAD_INIT(name) { &(name), &(name) }
         |                                           ^~~~
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
   include/linux/mutex.h:109:3: warning: excess elements in struct initializer
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mutex.h:109:3: note: (near initialization for 'prog_test_kfunc_list')
     109 |   { .owner = ATOMIC_LONG_INIT(0) \
         |   ^
   kernel/bpf/btf.c:6371:8: note: in expansion of macro '__MUTEX_INITIALIZER'
    6371 |        __MUTEX_INITIALIZER(name.mutex) };   \
         |        ^~~~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:7,
                    from include/linux/kernel.h:8,
                    from arch/x86/include/asm/percpu.h:27,
                    from arch/x86/include/asm/current.h:6,
                    from include/linux/sched.h:12,
                    from include/linux/ptrace.h:6,
                    from include/uapi/asm-generic/bpf_perf_event.h:4,
                    from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1,
                    from include/uapi/linux/bpf_perf_event.h:11,
                    from kernel/bpf/btf.c:6:
>> kernel/bpf/btf.c:6374:26: error: storage size of 'bpf_tcp_ca_kfunc_list' isn't known
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6374:26: error: storage size of 'bpf_tcp_ca_kfunc_list' isn't known
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6374:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6374 | DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6375:26: error: storage size of 'prog_test_kfunc_list' isn't known
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/bpf/btf.c:6375:26: error: storage size of 'prog_test_kfunc_list' isn't known
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         |                          ^~~~~~~~~~~~~~~~~~~~
   include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                     ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:164:33: note: in expansion of macro '_EXPORT_SYMBOL'
     164 | #define EXPORT_SYMBOL_GPL(sym)  _EXPORT_SYMBOL(sym, "_gpl")
         |                                 ^~~~~~~~~~~~~~
   kernel/bpf/btf.c:6372:2: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
    6372 |  EXPORT_SYMBOL_GPL(name)
         |  ^~~~~~~~~~~~~~~~~
   kernel/bpf/btf.c:6375:1: note: in expansion of macro 'DEFINE_KFUNC_BTF_ID_LIST'
    6375 | DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);
         | ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/bpf_tcp_ca_kfunc_list +6370 kernel/bpf/btf.c

14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02  6368  
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02  6369  #define DEFINE_KFUNC_BTF_ID_LIST(name)                                         \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6370  	struct kfunc_btf_id_list name = { LIST_HEAD_INIT(name.list),           \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6371  					  __MUTEX_INITIALIZER(name.mutex) };   \
14f267d95fe4b0 Kumar Kartikeya Dwivedi 2021-10-02 @6372  	EXPORT_SYMBOL_GPL(name)
0e32dfc80bae53 Kumar Kartikeya Dwivedi 2021-10-02  6373  
0e32dfc80bae53 Kumar Kartikeya Dwivedi 2021-10-02 @6374  DEFINE_KFUNC_BTF_ID_LIST(bpf_tcp_ca_kfunc_list);
c48e51c8b07aba Kumar Kartikeya Dwivedi 2021-10-02 @6375  DEFINE_KFUNC_BTF_ID_LIST(prog_test_kfunc_list);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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  parent reply	other threads:[~2021-11-10  4:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-10  1:00 [PATCH net v1] bpf: Fix build when CONFIG_BPF_SYSCALL is disabled Vinicius Costa Gomes
2021-11-10  3:22 ` kernel test robot
2021-11-10  3:22   ` kernel test robot
2021-11-10  3:59 ` kernel test robot [this message]
2021-11-10  3:59   ` kernel test robot

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