diff options
Diffstat (limited to 'arch/m32r/lib/csum_partial_copy.c')
-rw-r--r-- | arch/m32r/lib/csum_partial_copy.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/arch/m32r/lib/csum_partial_copy.c b/arch/m32r/lib/csum_partial_copy.c deleted file mode 100644 index b3cd59c12b8e..000000000000 --- a/arch/m32r/lib/csum_partial_copy.c +++ /dev/null | |||
@@ -1,59 +0,0 @@ | |||
1 | /* | ||
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | ||
3 | * operating system. INET is implemented using the BSD Socket | ||
4 | * interface as the means of communication with the user level. | ||
5 | * | ||
6 | * M32R specific IP/TCP/UDP checksumming routines | ||
7 | * (Some code taken from MIPS architecture) | ||
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 | * Copyright (C) 1994, 1995 Waldorf Electronics GmbH | ||
14 | * Copyright (C) 1998, 1999 Ralf Baechle | ||
15 | * Copyright (C) 2001-2005 Hiroyuki Kondo, Hirokazu Takata | ||
16 | * | ||
17 | */ | ||
18 | |||
19 | #include <linux/module.h> | ||
20 | #include <linux/types.h> | ||
21 | #include <linux/string.h> | ||
22 | |||
23 | #include <net/checksum.h> | ||
24 | #include <asm/byteorder.h> | ||
25 | #include <linux/uaccess.h> | ||
26 | |||
27 | /* | ||
28 | * Copy while checksumming, otherwise like csum_partial | ||
29 | */ | ||
30 | __wsum | ||
31 | csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum) | ||
32 | { | ||
33 | sum = csum_partial(src, len, sum); | ||
34 | memcpy(dst, src, len); | ||
35 | |||
36 | return sum; | ||
37 | } | ||
38 | EXPORT_SYMBOL(csum_partial_copy_nocheck); | ||
39 | |||
40 | /* | ||
41 | * Copy from userspace and compute checksum. If we catch an exception | ||
42 | * then zero the rest of the buffer. | ||
43 | */ | ||
44 | __wsum | ||
45 | csum_partial_copy_from_user (const void __user *src, void *dst, | ||
46 | int len, __wsum sum, int *err_ptr) | ||
47 | { | ||
48 | int missing; | ||
49 | |||
50 | missing = copy_from_user(dst, src, len); | ||
51 | if (missing) { | ||
52 | memset(dst + len - missing, 0, missing); | ||
53 | *err_ptr = -EFAULT; | ||
54 | } | ||
55 | |||
56 | return csum_partial(dst, len-missing, sum); | ||
57 | } | ||
58 | EXPORT_SYMBOL(csum_partial_copy_from_user); | ||
59 | EXPORT_SYMBOL(csum_partial); | ||