- return checksum;
-}
-
-unsigned int
-csum_partial_copy_from_user(const char __user *src, char *dst, int len,
- unsigned int sum, int *errp)
-{
- if (!access_ok(VERIFY_READ, src, len)) {
- *errp = -EFAULT;
- memset(dst, 0, len);
- return sum;
- }
-
- return do_csum_partial_copy_from_user(src, dst, len, sum, errp);