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net: axienet: add missing memory barriers
commit 95978df6 upstream. This driver was missing some required memory barriers: Use dma_rmb to ensure we see all updates to the descriptor after we see that an entry has been completed. Use wmb and rmb to avoid stale descriptor status between the TX path and TX complete IRQ path. Fixes: 8a3b7a25 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver") Signed-off-by:Robert Hancock <robert.hancock@calian.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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