From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/arm/mm/extable.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 arch/arm/mm/extable.c

(limited to 'arch/arm/mm/extable.c')

diff --git a/arch/arm/mm/extable.c b/arch/arm/mm/extable.c
new file mode 100644
index 000000000..312e15e6d
--- /dev/null
+++ b/arch/arm/mm/extable.c
@@ -0,0 +1,21 @@
+/*
+ *  linux/arch/arm/mm/extable.c
+ */
+#include <linux/module.h>
+#include <linux/uaccess.h>
+
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+	fixup = search_exception_tables(instruction_pointer(regs));
+	if (fixup) {
+		regs->ARM_pc = fixup->fixup;
+#ifdef CONFIG_THUMB2_KERNEL
+		/* Clear the IT state to avoid nasty surprises in the fixup */
+		regs->ARM_cpsr &= ~PSR_IT_MASK;
+#endif
+	}
+
+	return fixup != NULL;
+}
-- 
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