kientzle 6b07daaca2 Fix an mbuf leak in cpsw driver, clean up mbuf management:
* Record TX mbufs when we get them so we can release them.
 * Set TX/RX mbuf slots to NULL when we are no longer responsible for them
 * Move dma sync on RX into RX intr routine
2012-10-15 04:10:49 +00:00
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