static int op64_get_current_rxslot(struct b43_dmaring *ring)
{
	u32 val;

	val = b43_dma_read(ring, B43_DMA64_RXSTATUS);
	val &= B43_DMA64_RXSTATDPTR;

	return (val / sizeof(struct b43_dmadesc64));
}
static int op64_get_current_rxslot(struct b43_dmaring *ring)
{
	u32 val;

	val = b43_dma_read(ring, B43_DMA64_RXSTATUS);
	val &= B43_DMA64_RXSTATDPTR;

	return (val / sizeof(struct b43_dmadesc64));
}