+/**
+ * ps3_vuart_clear_rx_bytes - Discard bytes received.
+ * @bytes: Max byte count to discard, zero = all pending.
+ *
+ * Used to clear pending rx interrupt source. Will not block.
+ */
+
+void ps3_vuart_clear_rx_bytes(struct ps3_vuart_port_device *dev,
+ unsigned int bytes)
+{
+ int result;
+ u64 bytes_waiting;
+ void* tmp;
+
+ result = ps3_vuart_get_rx_bytes_waiting(dev, &bytes_waiting);
+
+ BUG_ON(result);
+
+ bytes = bytes ? min(bytes, (unsigned int)bytes_waiting) : bytes_waiting;
+
+ dev_dbg(&dev->core, "%s:%d: %u\n", __func__, __LINE__, bytes);
+
+ if (!bytes)
+ return;
+
+ /* Add some extra space for recently arrived data. */
+
+ bytes += 128;
+
+ tmp = kmalloc(bytes, GFP_KERNEL);
+
+ if (!tmp)
+ return;
+
+ ps3_vuart_raw_read(dev, tmp, bytes, &bytes_waiting);
+
+ kfree(tmp);
+
+ /* Don't include these bytes in the stats. */
+
+ dev->priv->stats.bytes_read -= bytes_waiting;
+}
+