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-rw-r--r--arch/ia64/lib/csum_partial_copy.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/arch/ia64/lib/csum_partial_copy.c b/arch/ia64/lib/csum_partial_copy.c
deleted file mode 100644
index 917e3138b277..000000000000
--- a/arch/ia64/lib/csum_partial_copy.c
+++ /dev/null
@@ -1,98 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Network Checksum & Copy routine
- *
- * Copyright (C) 1999, 2003-2004 Hewlett-Packard Co
- * Stephane Eranian <eranian@hpl.hp.com>
- *
- * Most of the code has been imported from Linux/Alpha
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/string.h>
-
-#include <net/checksum.h>
-
-/*
- * XXX Fixme: those 2 inlines are meant for debugging and will go away
- */
-static inline unsigned
-short from64to16(unsigned long x)
-{
- /* add up 32-bit words for 33 bits */
- x = (x & 0xffffffff) + (x >> 32);
- /* add up 16-bit and 17-bit words for 17+c bits */
- x = (x & 0xffff) + (x >> 16);
- /* add up 16-bit and 2-bit for 16+c bit */
- x = (x & 0xffff) + (x >> 16);
- /* add up carry.. */
- x = (x & 0xffff) + (x >> 16);
- return x;
-}
-
-static inline
-unsigned long do_csum_c(const unsigned char * buff, int len, unsigned int psum)
-{
- int odd, count;
- unsigned long result = (unsigned long)psum;
-
- 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 += *(unsigned short *) buff;
- count--;
- len -= 2;
- buff += 2;
- }
- count >>= 1; /* nr of 32-bit words.. */
- if (count) {
- if (4 & (unsigned long) buff) {
- result += *(unsigned int *) buff;
- count--;
- len -= 4;
- buff += 4;
- }
- count >>= 1; /* nr of 64-bit words.. */
- if (count) {
- unsigned long carry = 0;
- do {
- unsigned long w = *(unsigned long *) buff;
- count--;
- buff += 8;
- result += carry;
- result += w;
- carry = (w > result);
- } while (count);
- result += carry;
- result = (result & 0xffffffff) + (result >> 32);
- }
- if (len & 4) {
- result += *(unsigned int *) buff;
- buff += 4;
- }
- }
- if (len & 2) {
- result += *(unsigned short *) buff;
- buff += 2;
- }
- }
- if (len & 1)
- result += *buff;
-
- result = from64to16(result);
-
- if (odd)
- result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-
-out:
- return result;
-}