198             let key_blob = key_entry.take_key_blob_info().and_then(|(key_blob, blob_metadata)| {  in lookup_or_generate_key()  localVariable
200                     Some(key_blob)  in lookup_or_generate_key()
206             if let Some(key_blob_vec) = key_blob {  in lookup_or_generate_key()
207                 let (key_characteristics, key_blob) = self  in lookup_or_generate_key()
212                         |key_blob| {  in lookup_or_generate_key()
221                                 self.km_dev.getKeyCharacteristics(key_blob, &[], &[])  in lookup_or_generate_key()
228                     return Ok((key_id_guard, key_blob));  in lookup_or_generate_key()
247                         .map(|(key_blob, _)| KeyBlob::NonSensitive(key_blob))  in lookup_or_generate_key()
260         key_blob: KeyBlob<'a>,  in upgrade_keyblob_if_required_with()
266         match f(&key_blob) {  in upgrade_keyblob_if_required_with()
273                     self.km_dev.upgradeKey(&key_blob, &[])  in upgrade_keyblob_if_required_with()
293             result => Ok((result.context(ks_err!("Closure failed"))?, key_blob)),  in upgrade_keyblob_if_required_with()
304         key_blob: &[u8],  in use_key_in_one_step()
310         let key_blob = KeyBlob::Ref(key_blob);  in use_key_in_one_step()  localVariable
313             .upgrade_keyblob_if_required_with(db, key_id_guard, key_blob, |blob| {  in use_key_in_one_step()