1 files changed, 18 insertions, 0 deletions
diff --git a/lib/tables_csum.c b/lib/tables_csum.c
new file mode 100644
index 00000000000..305b1ec31c5
--- /dev/null
+++ b/lib/tables_csum.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <linux/types.h>
+
+u8 table_compute_checksum(const void *v, const int len)
+{
+	const u8 *bytes = v;
+	u8 checksum = 0;
+	int i;
+
+	for (i = 0; i < len; i++)
+		checksum -= bytes[i];
+
+	return checksum;
+}