-/*
- * Instantiate a key with the specified compatibility multipart payload and
- * link the key into the destination keyring if one is given.
- *
- * The caller must have the appropriate instantiation permit set for this to
- * work (see keyctl_assume_authority). No other permissions are required.
- *
- * If successful, 0 will be returned.
- */
-static long compat_keyctl_instantiate_key_iov(
- key_serial_t id,
- const struct compat_iovec __user *_payload_iov,
- unsigned ioc,
- key_serial_t ringid)
-{
- struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
- struct iov_iter from;
- long ret;
-
- if (!_payload_iov)
- ioc = 0;
-
- ret = compat_import_iovec(WRITE, _payload_iov, ioc,
- ARRAY_SIZE(iovstack), &iov,
- &from);
- if (ret < 0)
- return ret;
-
- ret = keyctl_instantiate_key_common(id, &from, ringid);
- kfree(iov);
- return ret;
-}
-