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

From: kernel test robot
Date: Sun Aug 15 2021 - 19:53:06 EST

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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@xxxxxxxxx>

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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Next message: Luis Claudio R. Goncalves: "[ANNOUNCE] 4.14.244-rt121"
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