Bluetooth: Move SMP (de)initialization to smp.c

As preparation for moving SMP to use l2cap_chan infrastructure we need
to move the (de)initialization functions to smp.c (where they'll
eventually need access to the local L2CAP channel callbacks).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 33016ec9b247..ab07649ecc77 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -1455,3 +1455,29 @@ int smp_distribute_keys(struct l2cap_conn *conn)
 
 	return 0;
 }
+
+int smp_register(struct hci_dev *hdev)
+{
+	BT_DBG("%s", hdev->name);
+
+	hdev->tfm_aes = crypto_alloc_blkcipher("ecb(aes)", 0,
+					       CRYPTO_ALG_ASYNC);
+	if (IS_ERR(hdev->tfm_aes)) {
+		int err = PTR_ERR(hdev->tfm_aes);
+		BT_ERR("Unable to create crypto context");
+		hdev->tfm_aes = NULL;
+		return err;
+	}
+
+	return 0;
+}
+
+void smp_unregister(struct hci_dev *hdev)
+{
+	BT_DBG("%s", hdev->name);
+
+	if (hdev->tfm_aes) {
+		crypto_free_blkcipher(hdev->tfm_aes);
+		hdev->tfm_aes = NULL;
+	}
+}