Re: [Emu10k1-devel] Re: Emu10k1 SPDIF passthru doesn't work if

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 1 Mar 2002 01:07:27 +0000 (GMT)

> It's true dma_addr_t does change from u32 to u64 and we do thinks like:
> (32 bit pci register) = cpu_to_le32(dma_handle)
>
> What is the correct way of doing this?
> (32 bit pci register) = cpu_to_le32((u32)dma_handle)

The cast befor ethe cpu_to_ is safe if its 32bit I/O only. Maybe we should
have cpu_to_le_dma_addr_t 8)
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