On Sun, Jul 17, 2022 at 12:34:53PM +0900, Stafford Horne wrote: > Two things to note are: > > - isa_dma_bridge_buggy, traditionally this is defined in asm/dma.h but > these architectures avoid creating that file and add the definition > to asm/pci.h. This doesn't have anyting to do with PCI support. I think adding a separate header just for this that always stubs it out unless a config option is set (which x86 then selects) is the besy idea here. I also think the isa_dma_bridge_buggy needs to move out of the PCI code as well.