Commit 73e6cdcf authored by Michael Büsch's avatar Michael Büsch Committed by John W. Linville
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b43: Add RX side DMA memory barrier



This adds a memory barrier to ensure the writes to the ring memory
are committed before the DMA ring pointer is updated.
We do a similar thing on the TX side already.
Signed-off-by: default avatarMichael Buesch <m@bues.ch>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 14205aa2
......@@ -1600,6 +1600,7 @@ void b43_dma_rx(struct b43_dmaring *ring)
dma_rx(ring, &slot);
update_max_used_slots(ring, ++used_slots);
}
wmb();
ops->set_current_rxslot(ring, slot);
ring->current_slot = slot;
}
......
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