Extern or forward variable declaration at include/linux/trace_events.h, line 16 References: include/linux/trace_events.h, line 16 include/linux/trace_events.h, line 275 include/linux/trace_events.h, line 432 include/linux/trace_events.h, line 434 kernel/bpf/syscall.c, line 522 kernel/bpf/syscall.c, line 551 kernel/bpf/syscall.c, line 604 kernel/bpf/syscall.c, line 621 kernel/bpf/syscall.c, line 638 kernel/bpf/syscall.c, line 647 kernel/bpf/syscall.c, line 657 kernel/bpf/syscall.c, line 663 kernel/bpf/syscall.c, line 675 kernel/bpf/syscall.c, line 675 kernel/bpf/syscall.c, line 685 kernel/bpf/syscall.c, line 685 kernel/bpf/syscall.c, line 690 kernel/bpf/syscall.c, line 693 kernel/bpf/syscall.c, line 709 kernel/bpf/syscall.c, line 714 kernel/bpf/syscall.c, line 726 kernel/events/core.c, line 7596 kernel/events/core.c, line 7739 kernel/events/core.c, line 7760 kernel/events/core.c, line 7782 kernel/events/core.c, line 7826 kernel/events/core.c, line 9155 kernel/seccomp.c, line 60 kernel/trace/bpf_trace.c, line 32 kernel/trace/bpf_trace.c, line 576 kernel/trace/trace_kprobe.c, line 1139 kernel/trace/trace_kprobe.c, line 1175 kernel/trace/trace_uprobe.c, line 1113 net/core/dev.c, line 6658 net/kcm/kcmsock.c, line 381 net/kcm/kcmsock.c, line 381 net/kcm/kcmsock.c, line 1363 net/kcm/kcmsock.c, line 1384 net/kcm/kcmsock.c, line 1436 net/kcm/kcmsock.c, line 1506