ufc 822 drivers/s390/crypto/pkey_api.c struct pkey_findcard __user *ufc = (void __user *) arg; ufc 825 drivers/s390/crypto/pkey_api.c if (copy_from_user(&kfc, ufc, sizeof(kfc))) ufc 832 drivers/s390/crypto/pkey_api.c if (copy_to_user(ufc, &kfc, sizeof(kfc)))