diff options
Diffstat (limited to 'arch/mips/lib/csum_partial_copy.c')
-rw-r--r-- | arch/mips/lib/csum_partial_copy.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/mips/lib/csum_partial_copy.c b/arch/mips/lib/csum_partial_copy.c deleted file mode 100644 index 06771040a267..000000000000 --- a/arch/mips/lib/csum_partial_copy.c +++ /dev/null | |||
@@ -1,52 +0,0 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file "COPYING" in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * Copyright (C) 1994, 1995 Waldorf Electronics GmbH | ||
7 | * Copyright (C) 1998, 1999 Ralf Baechle | ||
8 | */ | ||
9 | #include <linux/kernel.h> | ||
10 | #include <linux/module.h> | ||
11 | #include <linux/types.h> | ||
12 | #include <asm/byteorder.h> | ||
13 | #include <asm/string.h> | ||
14 | #include <asm/uaccess.h> | ||
15 | #include <net/checksum.h> | ||
16 | |||
17 | /* | ||
18 | * copy while checksumming, otherwise like csum_partial | ||
19 | */ | ||
20 | __wsum csum_partial_copy_nocheck(const void *src, | ||
21 | void *dst, int len, __wsum sum) | ||
22 | { | ||
23 | /* | ||
24 | * It's 2:30 am and I don't feel like doing it real ... | ||
25 | * This is lots slower than the real thing (tm) | ||
26 | */ | ||
27 | sum = csum_partial(src, len, sum); | ||
28 | memcpy(dst, src, len); | ||
29 | |||
30 | return sum; | ||
31 | } | ||
32 | |||
33 | EXPORT_SYMBOL(csum_partial_copy_nocheck); | ||
34 | |||
35 | /* | ||
36 | * Copy from userspace and compute checksum. If we catch an exception | ||
37 | * then zero the rest of the buffer. | ||
38 | */ | ||
39 | __wsum csum_partial_copy_from_user (const void __user *src, | ||
40 | void *dst, int len, __wsum sum, int *err_ptr) | ||
41 | { | ||
42 | int missing; | ||
43 | |||
44 | might_sleep(); | ||
45 | missing = copy_from_user(dst, src, len); | ||
46 | if (missing) { | ||
47 | memset(dst + len - missing, 0, missing); | ||
48 | *err_ptr = -EFAULT; | ||
49 | } | ||
50 | |||
51 | return csum_partial(dst, len, sum); | ||
52 | } | ||