[kees:kspp/memcpy/next-20210803/v2-devel 73/86] progs/profiler.inc.h:70:8: error: redefinition of 'kernfs_node___52'

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git kspp/memcpy/next-20210803/v2-devel
head:   4752984fc24104f399e70f99d48afa047d86a381
commit: 0f28d9daf643a1110bc7536f590e60035ba17635 [73/86] treewide: Replace open-coded flex array unions
config: x86_64-rhel-8.3-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=0f28d9daf643a1110bc7536f590e60035ba17635
        git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
        git fetch --no-tags kees kspp/memcpy/next-20210803/v2-devel
        git checkout 0f28d9daf643a1110bc7536f590e60035ba17635
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash -C tools/testing/selftests/bpf install

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

All error/warnings (new ones prefixed by >>):

   In file included from progs/profiler2.c:6:
>> progs/profiler.inc.h:70:8: error: redefinition of 'kernfs_node___52'
   struct kernfs_node___52 {
          ^
   /tools/include/vmlinux.h:367109:8: note: previous definition is here
   struct kernfs_node___52 {
          ^
   In file included from progs/profiler2.c:6:
>> progs/profiler.inc.h:237:38: error: member reference base type 'u64' (aka 'unsigned long long') is not a structure or union
           if (bpf_core_field_exists(node52->id.ino)) {
                                     ~~~~~~~~~~^~~~
   /tools/include/bpf/bpf_core_read.h:120:32: note: expanded from macro 'bpf_core_field_exists'
           __builtin_preserve_field_info(field, BPF_FIELD_EXISTS)
                                         ^~~~~
   In file included from progs/profiler2.c:6:
   progs/profiler.inc.h:239:34: error: member reference base type 'u64' (aka 'unsigned long long') is not a structure or union
                   return BPF_CORE_READ(node52, id.ino);
                          ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
   /tools/include/bpf/bpf_core_read.h:403:17: note: expanded from macro 'BPF_CORE_READ'
           ___type((src), a, ##__VA_ARGS__) __r;                               \
           ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:274:38: note: expanded from macro '___type'
   #define ___type(...) typeof(___arrow(__VA_ARGS__))
                               ~~~~~~~~~^~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:272:64: note: expanded from macro '___arrow'
   #define ___arrow(...) ___apply(___arrow, ___narg(__VA_ARGS__))(__VA_ARGS__)
                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:263:28: note: expanded from macro '___arrow2'
   #define ___arrow2(a, b) a->b
                           ~~~^
   In file included from progs/profiler2.c:6:
   progs/profiler.inc.h:239:34: error: member reference base type 'u64' (aka 'unsigned long long') is not a structure or union
                   return BPF_CORE_READ(node52, id.ino);
                          ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
   /tools/include/bpf/bpf_core_read.h:404:34: note: expanded from macro 'BPF_CORE_READ'
           BPF_CORE_READ_INTO(&__r, (src), a, ##__VA_ARGS__);                  \
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:312:20: note: expanded from macro 'BPF_CORE_READ_INTO'
                        dst, (src), a, ##__VA_ARGS__)                          \
                        ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:303:18: note: expanded from macro '___core_read'
                                                         src, a, ##__VA_ARGS__)
                                                         ~~~~~^~~~~~~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:296:38: note: expanded from macro '___core_read0'
           ___read(fn, dst, ___type(src), src, a);
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
   /tools/include/bpf/bpf_core_read.h:277:61: note: expanded from macro '___read'
           read_fn((void *)(dst), sizeof(*(dst)), &((src_type)(src))->accessor)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:206:79: note: expanded from macro 'bpf_core_read'
           bpf_probe_read_kernel(dst, sz, (const void *)__builtin_preserve_access_index(src))
                                                                                        ^~~
   In file included from progs/profiler2.c:6:
>> progs/profiler.inc.h:239:10: error: returning 'void' from a function with incompatible result type 'ino_t' (aka 'unsigned long')
                   return BPF_CORE_READ(node52, id.ino);
                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   /tools/include/bpf/bpf_core_read.h:402:36: note: expanded from macro 'BPF_CORE_READ'
   #define BPF_CORE_READ(src, a, ...) ({                                       \
                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   5 errors generated.
--
   progs/bpf_iter_tcp6.c:58:8: warning: incompatible pointer types assigning to 'const struct inode *' from 'struct inode___49 *' [-Wincompatible-pointer-types]
           inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> progs/bpf_iter_tcp6.c:89:7: warning: incompatible pointer types assigning to 'const struct inet_sock *' from 'const struct inet_sock___5 *' [-Wincompatible-pointer-types]
           inet = &icsk->icsk_inet;
                ^ ~~~~~~~~~~~~~~~~
   progs/bpf_iter_tcp6.c:90:5: warning: incompatible pointer types assigning to 'const struct sock *' from 'const struct sock___38 *' [-Wincompatible-pointer-types]
           sp = &inet->sk;
              ^ ~~~~~~~~~
   progs/bpf_iter_tcp6.c:185:23: warning: incompatible pointer types initializing 'struct request_sock *' with an expression of type 'struct request_sock___53 *' [-Wincompatible-pointer-types]
           struct request_sock *req = &irsk->req;
                                ^     ~~~~~~~~~~
   4 warnings generated.
--
   progs/bpf_iter_udp4.c:19:8: warning: incompatible pointer types assigning to 'const struct inode *' from 'struct inode___49 *' [-Wincompatible-pointer-types]
           inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> progs/bpf_iter_udp4.c:46:7: warning: incompatible pointer types assigning to 'struct inet_sock *' from 'struct inet_sock___2 *' [-Wincompatible-pointer-types]
           inet = &udp_sk->inet;
                ^ ~~~~~~~~~~~~~
   progs/bpf_iter_udp4.c:50:7: warning: incompatible pointer types assigning to 'struct inet_sock *' from 'struct inet_sock___2 *' [-Wincompatible-pointer-types]
           inet = &udp_sk->inet;
                ^ ~~~~~~~~~~~~~
   progs/bpf_iter_udp4.c:65:21: warning: incompatible pointer types passing 'struct sock___38 *' to parameter of type 'const struct sock *' [-Wincompatible-pointer-types]
                          sock_i_ino(&inet->sk),
                                     ^~~~~~~~~
   /tools/include/bpf/bpf_helpers.h:202:24: note: expanded from macro 'BPF_SEQ_PRINTF'
           ___bpf_fill(___param, args);                            \
                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:189:55: note: expanded from macro '___bpf_fill'
           ___bpf_apply(___bpf_fill, ___bpf_narg(args))(arr, 0, args)
                                                                ^~~~
   /tools/include/bpf/bpf_helpers.h:187:81: note: expanded from macro '___bpf_fill12'
   #define ___bpf_fill12(arr, p, x, args...) arr[p] = x; ___bpf_fill11(arr, p + 1, args)
                                                                                   ^~~~
   note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   /tools/include/bpf/bpf_helpers.h:181:79: note: expanded from macro '___bpf_fill6'
   #define ___bpf_fill6(arr, p, x, args...) arr[p] = x; ___bpf_fill5(arr, p + 1, args)
                                                                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:180:79: note: expanded from macro '___bpf_fill5'
   #define ___bpf_fill5(arr, p, x, args...) arr[p] = x; ___bpf_fill4(arr, p + 1, args)
                                                                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:179:51: note: expanded from macro '___bpf_fill4'
   #define ___bpf_fill4(arr, p, x, args...) arr[p] = x; ___bpf_fill3(arr, p + 1, args)
                                                     ^
   progs/bpf_iter_udp4.c:10:43: note: passing argument to parameter 'sk' here
   static long sock_i_ino(const struct sock *sk)
                                             ^
   4 warnings generated.
--
   progs/bpf_iter_udp6.c:26:8: warning: incompatible pointer types assigning to 'const struct inode *' from 'struct inode___49 *' [-Wincompatible-pointer-types]
           inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> progs/bpf_iter_udp6.c:54:7: warning: incompatible pointer types assigning to 'struct inet_sock *' from 'struct inet_sock___2 *' [-Wincompatible-pointer-types]
           inet = &udp_sk->inet;
                ^ ~~~~~~~~~~~~~
   progs/bpf_iter_udp6.c:73:21: warning: incompatible pointer types passing 'struct sock___38 *' to parameter of type 'const struct sock *' [-Wincompatible-pointer-types]
                          sock_i_ino(&inet->sk),
                                     ^~~~~~~~~
   /tools/include/bpf/bpf_helpers.h:202:24: note: expanded from macro 'BPF_SEQ_PRINTF'
           ___bpf_fill(___param, args);                            \
                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:189:55: note: expanded from macro '___bpf_fill'
           ___bpf_apply(___bpf_fill, ___bpf_narg(args))(arr, 0, args)
                                                                ^~~~
   /tools/include/bpf/bpf_helpers.h:187:81: note: expanded from macro '___bpf_fill12'
   #define ___bpf_fill12(arr, p, x, args...) arr[p] = x; ___bpf_fill11(arr, p + 1, args)
                                                                                   ^~~~
   note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   /tools/include/bpf/bpf_helpers.h:181:79: note: expanded from macro '___bpf_fill6'
   #define ___bpf_fill6(arr, p, x, args...) arr[p] = x; ___bpf_fill5(arr, p + 1, args)
                                                                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:180:79: note: expanded from macro '___bpf_fill5'
   #define ___bpf_fill5(arr, p, x, args...) arr[p] = x; ___bpf_fill4(arr, p + 1, args)
                                                                                 ^~~~
   /tools/include/bpf/bpf_helpers.h:179:51: note: expanded from macro '___bpf_fill4'
   #define ___bpf_fill4(arr, p, x, args...) arr[p] = x; ___bpf_fill3(arr, p + 1, args)
                                                     ^
   progs/bpf_iter_udp6.c:17:43: note: passing argument to parameter 'sk' here
   static long sock_i_ino(const struct sock *sk)
                                             ^
   3 warnings generated.
--
   progs/bpf_iter_tcp4.c:58:8: warning: incompatible pointer types assigning to 'const struct inode *' from 'struct inode___49 *' [-Wincompatible-pointer-types]
           inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
                 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> progs/bpf_iter_tcp4.c:89:7: warning: incompatible pointer types assigning to 'const struct inet_sock *' from 'const struct inet_sock___5 *' [-Wincompatible-pointer-types]
           inet = &icsk->icsk_inet;
                ^ ~~~~~~~~~~~~~~~~
   progs/bpf_iter_tcp4.c:90:5: warning: incompatible pointer types assigning to 'const struct sock *' from 'const struct sock___38 *' [-Wincompatible-pointer-types]
           sp = &inet->sk;
              ^ ~~~~~~~~~
   progs/bpf_iter_tcp4.c:176:23: warning: incompatible pointer types initializing 'struct request_sock *' with an expression of type 'struct request_sock___53 *' [-Wincompatible-pointer-types]
           struct request_sock *req = &irsk->req;
                                ^     ~~~~~~~~~~
   4 warnings generated.
--
>> progs/bpf_iter_ipv6_route.c:47:6: warning: incompatible pointer types assigning to 'const struct net_device *' from 'struct net_device___3 *' [-Wincompatible-pointer-types]
           dev = fib6_nh->fib_nh_dev;
               ^ ~~~~~~~~~~~~~~~~~~~
   1 warning generated.
--
>> skeleton/pid_iter.bpf.c:44:15: warning: incompatible pointer types initializing 'struct file *' with an expression of type 'struct file___17 *' [-Wincompatible-pointer-types]
           struct file *file = ctx->file;
                        ^      ~~~~~~~~~
>> skeleton/pid_iter.bpf.c:45:22: warning: incompatible pointer types initializing 'struct task_struct *' with an expression of type 'struct task_struct___16 *' [-Wincompatible-pointer-types]
           struct task_struct *task = ctx->task;
                               ^      ~~~~~~~~~
>> skeleton/pid_iter.bpf.c:76:16: warning: incompatible pointer types passing 'struct seq_file___19 *' to parameter of type 'struct seq_file *' [-Wincompatible-pointer-types]
           bpf_seq_write(ctx->meta->seq, &e, sizeof(e));
                         ^~~~~~~~~~~~~~
   3 warnings generated.

---
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