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-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;
-}