1 // SPDX-License-Identifier: GPL-2.0
2 
3 #include <linux/error-injection.h>
4 #include <linux/kprobes.h>
5 
override_function_with_return(struct pt_regs * regs)6 void override_function_with_return(struct pt_regs *regs)
7 {
8 	/*
9 	 * 'regs' represents the state on entry of a predefined function in
10 	 * the kernel/module and which is captured on a kprobe.
11 	 *
12 	 * When kprobe returns back from exception it will override the end
13 	 * of probed function and directly return to the predefined
14 	 * function's caller.
15 	 */
16 	instruction_pointer_set(regs, procedure_link_pointer(regs));
17 }
18 NOKPROBE_SYMBOL(override_function_with_return);
19