Re: Bug in virt_to_bus() in 2.2.14 and 2.3.46?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Mon Mar 13 2000 - 09:17:18 EST


> How about socket buffers returned by dev_alloc_skb()?

They are linear, and PCI dma-able and you can use virt_to_bus on them. They
are not guaranteed to be ISA DMAable so ISA DMA hosts will need to use
bounce buffers for high or 64K spanning frames

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