From a91350732c308c2f0ea6a73d55b2a3a13771e1c1 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 20 Aug 2007 16:12:24 +0000
Subject: cleanup mtd, implement jffs2write - one step closer to config
 preserving system upgrades

SVN-Revision: 8444
---
 package/mtd/src/crc32.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 package/mtd/src/crc32.h

(limited to 'package/mtd/src/crc32.h')

diff --git a/package/mtd/src/crc32.h b/package/mtd/src/crc32.h
new file mode 100644
index 0000000000..ee3145bc15
--- /dev/null
+++ b/package/mtd/src/crc32.h
@@ -0,0 +1,19 @@
+#ifndef CRC32_H
+#define CRC32_H
+
+#include <stdint.h>
+
+extern const uint32_t crc32_table[256];
+
+/* Return a 32-bit CRC of the contents of the buffer. */
+
+	static inline uint32_t
+crc32(uint32_t val, const void *ss, int len)
+{
+	const unsigned char *s = ss;
+	while (--len >= 0)
+		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
+	return val;
+}
+
+#endif
-- 
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