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v0.8.1
https://github.com/torvalds/linux
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Tip revision: f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6 authored by Linus Torvalds on 14 May 2023, 19:51:40 UTC
Linux 6.4-rc2
Tip revision: f1fcbaa
error-inject.c
// SPDX-License-Identifier: GPL-2.0+
#include <asm/ptrace.h>
#include <linux/error-injection.h>
#include <linux/kprobes.h>

void override_function_with_return(struct pt_regs *regs)
{
	/*
	 * Emulate 'br 14'. 'regs' is captured by kprobes on entry to some
	 * kernel function.
	 */
	regs->psw.addr = regs->gprs[14];
}
NOKPROBE_SYMBOL(override_function_with_return);
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