qcrypto-luks: pass keyslot index rather that pointer to the keyslot

Another minor refactoring

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/crypto/block-luks.c b/crypto/block-luks.c
index 9e59a791a696a5e74754e7133149667d9a2aae97..b759cc8d193ed92431bfadd1a4f9c938e66ec1eb 100644 (file)
--- a/crypto/block-luks.c
+++ b/crypto/block-luks.c
@@ -410,7 +410,7 @@ qcrypto_block_luks_essiv_cipher(QCryptoCipherAlgorithm cipher,
  */
 static int
 qcrypto_block_luks_load_key(QCryptoBlock *block,
-                            QCryptoBlockLUKSKeySlot *slot,
+                            size_t slot_idx,
                             const char *password,
                             QCryptoCipherAlgorithm cipheralg,
                             QCryptoCipherMode ciphermode,
@@ -424,6 +424,7 @@ qcrypto_block_luks_load_key(QCryptoBlock *block,
                             Error **errp)
 {
     QCryptoBlockLUKS *luks = block->opaque;
+    const QCryptoBlockLUKSKeySlot *slot = &luks->header.key_slots[slot_idx];
     g_autofree uint8_t *splitkey = NULL;
     size_t splitkeylen;
     g_autofree uint8_t *possiblekey = NULL;
@@ -580,13 +581,12 @@ qcrypto_block_luks_find_key(QCryptoBlock *block,
                             void *opaque,
                             Error **errp)
 {
-    QCryptoBlockLUKS *luks = block->opaque;
     size_t i;
     int rv;
 
     for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
         rv = qcrypto_block_luks_load_key(block,
-                                         &luks->header.key_slots[i],
+                                         i,
                                          password,
                                          cipheralg,
                                          ciphermode,