while (cpdma_process(priv, &priv->rx_chan, &buffer, &len) >= 0) {
invalidate_dcache_range((unsigned long)buffer,
(unsigned long)buffer + PKTSIZE_ALIGN);
while (cpdma_process(priv, &priv->rx_chan, &buffer, &len) >= 0) {
invalidate_dcache_range((unsigned long)buffer,
(unsigned long)buffer + PKTSIZE_ALIGN);