| // SPDX-License-Identifier: GPL-2.0-only |
| * This module emits "Hello, world" on printk when loaded. |
| * It is designed to be used for basic evaluation of the module loading |
| * subsystem (for example when validating module signing/verification). It |
| * lacks any extra dependencies, and will not normally be loaded by the |
| * system unless explicitly requested by name. |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| #include <linux/module.h> |
| #include <linux/printk.h> |
| static int __init test_module_init(void) |
| pr_warn("Hello, world\n"); |
| module_init(test_module_init); |
| static void __exit test_module_exit(void) |
| module_exit(test_module_exit); |
| MODULE_AUTHOR("Kees Cook <keescook@chromium.org>"); |