On Sat, 20 Apr 2013 23:23:54 +0200 (CEST) Thommy Jakobsson <thom...@gmail.com> wrote:
> Isn't that exactly what we do in b43_dma_rx? The initial rx descriptor > index is just to make the device to start. Theoretically you could get > into a fault situation if the device succeds in using up all descriptors > between b43_dma_rx_discard (added by my patch) and the call to b43_dma_rx. > Because then you could start reading the same packet as the device is > writing to. Yes this is true. And thus I'm currently unsure why we need this patch at all. _Why_ does the DMA stall as soon as the ring is filled up? -- Michael
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