Re: [PATCH v9 03/14] swiotlb: Set dev->dma_io_tlb_mem to the swiotlb pool used

On Fri, Jun 11, 2021 at 11:33:15PM +0800, Claire Chang wrote:

I'm not sure if this would break arch/x86/pci/sta2x11-fixup.c
swiotlb_late_init_with_default_size is called here
https://elixir.bootlin.com/linux/v5.13-rc5/source/arch/x86/pci/sta2x11-fixup.c#L60

It will.  It will also break all non-OF devices.  I think you need to
initialize the initial pool in device_initialize, which covers all devices.