/*
   * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com)
   * Licensed under the GPL V2
   */
  
  #include <linux/uaccess.h>

  #include <asm/errno.h>

  
  /* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because

   * that's not relevant in skas mode.

   */
  
  int is_valid_bugaddr(unsigned long eip)
  {
  	unsigned short ud2;
  
  	if (probe_kernel_address((unsigned short __user *)eip, ud2))
  		return 0;
  
  	return ud2 == 0x0b0f;
  }