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 | } | ||
