Contributors: 2
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Aurelien Jacquiot |
116 |
98.31% |
1 |
50.00% |
| Thomas Gleixner |
2 |
1.69% |
1 |
50.00% |
| Total |
118 |
|
2 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
*/
#include <linux/module.h>
#include <net/checksum.h>
#include <asm/byteorder.h>
/*
* copy from fs while checksumming, otherwise like csum_partial
*/
__wsum
csum_partial_copy_from_user(const void __user *src, void *dst, int len,
__wsum sum, int *csum_err)
{
int missing;
missing = __copy_from_user(dst, src, len);
if (missing) {
memset(dst + len - missing, 0, missing);
*csum_err = -EFAULT;
} else
*csum_err = 0;
return csum_partial(dst, len, sum);
}
EXPORT_SYMBOL(csum_partial_copy_from_user);
/* These are from csum_64plus.S */
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy);
EXPORT_SYMBOL(ip_compute_csum);
EXPORT_SYMBOL(ip_fast_csum);