Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm64/mm/extable.c b/arch/arm64/mm/extable.c
new file mode 100644
index 000000000..aa0060178
--- /dev/null
+++ b/arch/arm64/mm/extable.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Based on arch/arm/mm/extable.c
+ */
+
+#include <linux/extable.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)
+		return 0;
+
+	if (in_bpf_jit(regs))
+		return arm64_bpf_fixup_exception(fixup, regs);
+
+	regs->pc = (unsigned long)&fixup->fixup + fixup->fixup;
+	return 1;
+}