// SPDX-License-Identifier: GPL-2.0
|
// Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
#include <linux/module.h>
|
#include <linux/kernel.h>
|
#include <linux/livepatch.h>
|
|
#include <linux/seq_file.h>
|
static int livepatch_cmdline_proc_show(struct seq_file *m, void *v)
|
{
|
seq_printf(m, "%s: %s\n", THIS_MODULE->name,
|
"this has been live patched");
|
return 0;
|
}
|
|
static struct klp_func funcs[] = {
|
{
|
.old_name = "cmdline_proc_show",
|
.new_func = livepatch_cmdline_proc_show,
|
}, { }
|
};
|
|
static struct klp_object objs[] = {
|
{
|
/* name being NULL means vmlinux */
|
.funcs = funcs,
|
}, { }
|
};
|
|
static struct klp_patch patch = {
|
.mod = THIS_MODULE,
|
.objs = objs,
|
};
|
|
static int test_klp_livepatch_init(void)
|
{
|
return klp_enable_patch(&patch);
|
}
|
|
static void test_klp_livepatch_exit(void)
|
{
|
}
|
|
module_init(test_klp_livepatch_init);
|
module_exit(test_klp_livepatch_exit);
|
MODULE_LICENSE("GPL");
|
MODULE_INFO(livepatch, "Y");
|
MODULE_AUTHOR("Seth Jennings <sjenning@redhat.com>");
|
MODULE_DESCRIPTION("Livepatch test: livepatch module");
|
