Russell McGuire wrote:
So shouldn't we be using like dma_alloc_coherent, and then tracking the dma
address separately as a variable, and use it when necessary instead of
calling virt_to_phys()?

Yes. On 8xxx (but not 8xx, and not with 36-bit memory), there'll be no practical difference, but the DMA mapping API *should* be used.

-Scott
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