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authorPaul Mundt <lethal@linux-sh.org>2009-06-14 11:00:42 -0400
committerPaul Mundt <lethal@linux-sh.org>2009-06-14 11:00:42 -0400
commit3767f3f1ee11da55760616a2c68a09c02babdd9b (patch)
tree41f01349b06063bd9ba52c6bb852cb34797a9331 /arch/sh/include
parent2b74b85693c7c0772e8787883230cd15314555f8 (diff)
sh: Convert sh64 to use the generic checksum code.
This plugs in GENERIC_CSUM support on sh64, and kills off all of the old references. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include')
-rw-r--r--arch/sh/include/asm/checksum.h2
-rw-r--r--arch/sh/include/asm/checksum_64.h78
2 files changed, 1 insertions, 79 deletions
diff --git a/arch/sh/include/asm/checksum.h b/arch/sh/include/asm/checksum.h
index 67496ab0ef04..fc26d1f4b590 100644
--- a/arch/sh/include/asm/checksum.h
+++ b/arch/sh/include/asm/checksum.h
@@ -1,5 +1,5 @@
1#ifdef CONFIG_SUPERH32 1#ifdef CONFIG_SUPERH32
2# include "checksum_32.h" 2# include "checksum_32.h"
3#else 3#else
4# include "checksum_64.h" 4# include <asm-generic/checksum.h>
5#endif 5#endif
diff --git a/arch/sh/include/asm/checksum_64.h b/arch/sh/include/asm/checksum_64.h
deleted file mode 100644
index 9c62a031a8f5..000000000000
--- a/arch/sh/include/asm/checksum_64.h
+++ /dev/null
@@ -1,78 +0,0 @@
1#ifndef __ASM_SH_CHECKSUM_64_H
2#define __ASM_SH_CHECKSUM_64_H
3
4/*
5 * include/asm-sh/checksum_64.h
6 *
7 * Copyright (C) 2000, 2001 Paolo Alberelli
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file "COPYING" in the main directory of this archive
11 * for more details.
12 */
13
14/*
15 * computes the checksum of a memory block at buff, length len,
16 * and adds in "sum" (32-bit)
17 *
18 * returns a 32-bit number suitable for feeding into itself
19 * or csum_tcpudp_magic
20 *
21 * this function must be called with even lengths, except
22 * for the last fragment, which may be odd
23 *
24 * it's best to have buff aligned on a 32-bit boundary
25 */
26asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
27
28/*
29 * Note: when you get a NULL pointer exception here this means someone
30 * passed in an incorrect kernel address to one of these functions.
31 *
32 * If you use these functions directly please don't forget the
33 * access_ok().
34 */
35
36
37__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len,
38 __wsum sum);
39
40__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
41 int len, __wsum sum, int *err_ptr);
42
43static inline __sum16 csum_fold(__wsum csum)
44{
45 u32 sum = (__force u32)csum;
46 sum = (sum & 0xffff) + (sum >> 16);
47 sum = (sum & 0xffff) + (sum >> 16);
48 return (__force __sum16)~sum;
49}
50
51__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
52
53__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
54 unsigned short len, unsigned short proto,
55 __wsum sum);
56
57/*
58 * computes the checksum of the TCP/UDP pseudo-header
59 * returns a 16-bit checksum, already complemented
60 */
61static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
62 unsigned short len,
63 unsigned short proto,
64 __wsum sum)
65{
66 return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
67}
68
69/*
70 * this routine is used for miscellaneous IP-like checksums, mainly
71 * in icmp.c
72 */
73static inline __sum16 ip_compute_csum(const void *buff, int len)
74{
75 return csum_fold(csum_partial(buff, len, 0));
76}
77
78#endif /* __ASM_SH_CHECKSUM_64_H */