162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Borrowed heavily from MIPS 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/export.h> 962306a36Sopenharmony_ci#include <linux/extable.h> 1062306a36Sopenharmony_ci#include <linux/uaccess.h> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ciint fixup_exception(struct pt_regs *regs) 1362306a36Sopenharmony_ci{ 1462306a36Sopenharmony_ci const struct exception_table_entry *fixup; 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci fixup = search_exception_tables(instruction_pointer(regs)); 1762306a36Sopenharmony_ci if (fixup) { 1862306a36Sopenharmony_ci regs->ret = fixup->fixup; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci return 1; 2162306a36Sopenharmony_ci } 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci return 0; 2462306a36Sopenharmony_ci} 25