LXR linux/arch/x86/lib/error-inject.c

   1// SPDX-License-Identifier: GPL-2.0
   2
   3#include <linux/error-injection.h>
   4#include <linux/kprobes.h>
   5
   6asmlinkage void just_return_func(void);
   7
   8asm(
   9        ".text\n"
  10        ".type just_return_func, @function\n"
  11        ".globl just_return_func\n"
  12        "just_return_func:\n"
  13        "       ret\n"
  14        ".size just_return_func, .-just_return_func\n"
  15);
  16
  17void override_function_with_return(struct pt_regs *regs)
  18{
  19        regs->ip = (unsigned long)&just_return_func;
  20}
  21NOKPROBE_SYMBOL(override_function_with_return);
  22