1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <linux/error-injection.h>
4 #include <linux/kprobes.h>
5
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
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