Cregit: Linux 6.13: error-inject.c

Contributors: 8
Author	Tokens	Token Proportion	Commits	Commit Proportion
Masami Hiramatsu	22	46.81%	5	38.46%
Prasanna S. Panchamukhi	8	17.02%	1	7.69%
Peter Zijlstra	4	8.51%	2	15.38%
Chuck Ebbert	4	8.51%	1	7.69%
Andi Kleen	4	8.51%	1	7.69%
Vincent Hanquez	3	6.38%	1	7.69%
H. Peter Anvin	1	2.13%	1	7.69%
Julien Thierry	1	2.13%	1	7.69%
Total	47		13

// SPDX-License-Identifier: GPL-2.0

#include <linux/linkage.h>
#include <linux/error-injection.h>
#include <linux/kprobes.h>
#include <linux/objtool.h>

asmlinkage void just_return_func(void);

asm(
	".text\n"
	".type just_return_func, @function\n"
	".globl just_return_func\n"
	ASM_FUNC_ALIGN
	"just_return_func:\n"
		ANNOTATE_NOENDBR
		ASM_RET
	".size just_return_func, .-just_return_func\n"
);

void override_function_with_return(struct pt_regs *regs)
{
	regs->ip = (unsigned long)&just_return_func;
}
NOKPROBE_SYMBOL(override_function_with_return);