Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Al Viro |
171 |
98.84% |
2 |
50.00% |
| Greg Kroah-Hartman |
1 |
0.58% |
1 |
25.00% |
| Christophe Leroy |
1 |
0.58% |
1 |
25.00% |
| Total |
173 |
|
4 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/uaccess.h>
/* out-of-line parts */
#ifndef INLINE_COPY_FROM_USER
unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)
{
unsigned long res = n;
might_fault();
if (likely(access_ok(VERIFY_READ, from, n))) {
kasan_check_write(to, n);
res = raw_copy_from_user(to, from, n);
}
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
EXPORT_SYMBOL(_copy_from_user);
#endif
#ifndef INLINE_COPY_TO_USER
unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)
{
might_fault();
if (likely(access_ok(VERIFY_WRITE, to, n))) {
kasan_check_read(from, n);
n = raw_copy_to_user(to, from, n);
}
return n;
}
EXPORT_SYMBOL(_copy_to_user);
#endif