tools/testing/selftests/bpf/progs/prepare.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/prepare.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/prepare.c
Extension
.c
Size
492 bytes
Lines
28
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2025 Meta */
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>

char _license[] SEC("license") = "GPL";

int err;

struct {
	__uint(type, BPF_MAP_TYPE_RINGBUF);
	__uint(max_entries, 4096);
} ringbuf SEC(".maps");

struct {
	__uint(type, BPF_MAP_TYPE_ARRAY);
	__uint(max_entries, 1);
	__type(key, __u32);
	__type(value, __u32);
} array_map SEC(".maps");

SEC("cgroup_skb/egress")
int program(struct __sk_buff *skb)
{
	err = 0;
	return 0;
}

Annotation

Implementation Notes