LXR linux/arch/powerpc/kernel/jump

   1/*
   2 * Copyright 2010 Michael Ellerman, IBM Corp.
   3 *
   4 * This program is free software; you can redistribute it and/or
   5 * modify it under the terms of the GNU General Public License
   6 * as published by the Free Software Foundation; either version
   7 * 2 of the License, or (at your option) any later version.
   8 */
   9
  10#include <linux/kernel.h>
  11#include <linux/jump_label.h>
  12#include <asm/code-patching.h>
  13
  14#ifdef HAVE_JUMP_LABEL
  15void arch_jump_label_transform(struct jump_entry *entry,
  16                               enum jump_label_type type)
  17{
  18        u32 *addr = (u32 *)(unsigned long)entry->code;
  19
  20        if (type == JUMP_LABEL_ENABLE)
  21                patch_branch(addr, entry->target, 0);
  22        else
  23                patch_instruction(addr, PPC_INST_NOP);
  24}
  25#endif
  26