nfp: correct DMA direction in XDP DMA sync
dma_sync_single_for_*() takes the direction in which the buffer was mapped, not the direction of the sync. We should sync XDP buffers bidirectionally. Fixes: ecd63a02 ("nfp: add XDP support in the driver") Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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