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[Backport v2.7-branch] Bluetooth: Host: Avoid processing "no change" encryption changes #74122

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[Backport v2.7-branch] Bluetooth: Host: Avoid processing "no change" encryption changes #74122

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6 changes: 6 additions & 0 deletions subsys/bluetooth/host/hci_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1756,6 +1756,12 @@ static void hci_encrypt_change(struct net_buf *buf)
return;
}

if (conn->encrypt == evt->encrypt) {
BT_WARN("No change to encryption state (encrypt 0x%02x)", evt->encrypt);
bt_conn_unref(conn);
return;
}

conn->encrypt = evt->encrypt;

#if defined(CONFIG_BT_SMP)
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