Lines Matching defs:from
11 unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)
15 if (!should_fail_usercopy() && likely(access_ok(from, n))) {
22 instrument_copy_from_user_before(to, from, n);
23 res = raw_copy_from_user(to, from, n);
24 instrument_copy_from_user_after(to, from, n, res);
34 unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n)
40 instrument_copy_to_user(to, from, n);
41 n = raw_copy_to_user(to, from, n);
50 * @from: Source address, in userspace.
53 * This is effectively shorthand for "memchr_inv(from, 0, size) == NULL" for
62 int check_zeroed_user(const void __user *from, size_t size)
65 uintptr_t align = (uintptr_t) from % sizeof(unsigned long);
70 from -= align;
73 if (!user_read_access_begin(from, size))
76 unsafe_get_user(val, (unsigned long __user *) from, err_fault);
84 from += sizeof(unsigned long);
87 unsafe_get_user(val, (unsigned long __user *) from, err_fault);