1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Based on arch/arm/mm/extable.c
 4 */
 5
 6#include <linux/extable.h>
 7#include <linux/uaccess.h>
 8
 9int fixup_exception(struct pt_regs *regs)
10{
11	const struct exception_table_entry *fixup;
12
13	fixup = search_exception_tables(instruction_pointer(regs));
14	if (!fixup)
15		return 0;
16
17	if (IS_ENABLED(CONFIG_BPF_JIT) &&
18	    regs->pc >= BPF_JIT_REGION_START &&
19	    regs->pc < BPF_JIT_REGION_END)
20		return arm64_bpf_fixup_exception(fixup, regs);
21
22	regs->pc = (unsigned long)&fixup->fixup + fixup->fixup;
23	return 1;
24}