// SPDX-License-Identifier: GPL-2.0// Copyright (C) 2024 Marcos Paulo de Souza <mpdesouza@suse.com>// Copyright (C) 2024 Michael Vetter <mvetter@suse.com> #include <linux/kernel.h>#include <linux/module.h>#include <linux/kprobes.h> static bool has_post_handler = true;module_param(has_post_handler, bool, 0444); static void __kprobes post_handler(struct kprobe *p, struct pt_regs *regs,				unsigned long flags){} static struct kprobe kp = {	.symbol_name = "cmdline_proc_show",}; static int __init kprobe_init(void){	if (has_post_handler)		kp.post_handler = post_handler; 	return register_kprobe(&kp);} static void __exit kprobe_exit(void){	unregister_kprobe(&kp);} module_init(kprobe_init)module_exit(kprobe_exit)MODULE_LICENSE("GPL");MODULE_AUTHOR("Michael Vetter <mvetter@suse.com>");MODULE_DESCRIPTION("Livepatch test: kprobe function");