| // SPDX-License-Identifier: GPL-2.0+ | |
| #include <linux/error-injection.h> | |
| #include <linux/kprobes.h> | |
| #include <linux/uaccess.h> | |
| void override_function_with_return(struct pt_regs *regs) | |
| { | |
| /* | |
| * Emulate 'blr'. 'regs' represents the state on entry of a predefined | |
| * function in the kernel/module, captured on a kprobe. We don't need | |
| * to worry about 32-bit userspace on a 64-bit kernel. | |
| */ | |
| regs_set_return_ip(regs, regs->link); | |
| } | |
| NOKPROBE_SYMBOL(override_function_with_return); |