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Diffstat (limited to 'arch/tile/lib/checksum.c')
-rw-r--r--arch/tile/lib/checksum.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/arch/tile/lib/checksum.c b/arch/tile/lib/checksum.c
deleted file mode 100644
index c3ca3e64d9d9..000000000000
--- a/arch/tile/lib/checksum.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- * Support code for the main lib/checksum.c.
- */
-
-#include <net/checksum.h>
-#include <linux/module.h>
-
-__wsum do_csum(const unsigned char *buff, int len)
-{
-	int odd, count;
-	unsigned long result = 0;
-
-	if (len <= 0)
-		goto out;
-	odd = 1 & (unsigned long) buff;
-	if (odd) {
-		result = (*buff << 8);
-		len--;
-		buff++;
-	}
-	count = len >> 1;		/* nr of 16-bit words.. */
-	if (count) {
-		if (2 & (unsigned long) buff) {
-			result += *(const unsigned short *)buff;
-			count--;
-			len -= 2;
-			buff += 2;
-		}
-		count >>= 1;		/* nr of 32-bit words.. */
-		if (count) {
-#ifdef __tilegx__
-			if (4 & (unsigned long) buff) {
-				unsigned int w = *(const unsigned int *)buff;
-				result = __insn_v2sadau(result, w, 0);
-				count--;
-				len -= 4;
-				buff += 4;
-			}
-			count >>= 1;		/* nr of 64-bit words.. */
-#endif
-
-			/*
-			 * This algorithm could wrap around for very
-			 * large buffers, but those should be impossible.
-			 */
-			BUG_ON(count >= 65530);
-
-			while (count) {
-				unsigned long w = *(const unsigned long *)buff;
-				count--;
-				buff += sizeof(w);
-#ifdef __tilegx__
-				result = __insn_v2sadau(result, w, 0);
-#else
-				result = __insn_sadah_u(result, w, 0);
-#endif
-			}
-#ifdef __tilegx__
-			if (len & 4) {
-				unsigned int w = *(const unsigned int *)buff;
-				result = __insn_v2sadau(result, w, 0);
-				buff += 4;
-			}
-#endif
-		}
-		if (len & 2) {
-			result += *(const unsigned short *) buff;
-			buff += 2;
-		}
-	}
-	if (len & 1)
-		result += *buff;
-	result = csum_long(result);
-	if (odd)
-		result = swab16(result);
-out:
-	return result;
-}