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SubjectRe: 2.5.4-pre5 fails to build (sounddrivers.o/pcmcia_net.o)
> es1370.c is using pci_alloc_consistent. However insmod es1370 gives this 
> message :
> /lib/modules/2.5.4-pre5/kernel/drivers/sound/es1370.o: unresolved symbol
> virt_to_bus_not_defined_use_pci_map_R2278fef8
> It comes from a workaround for the "phantom write" bug. A workaround for
> the workaround might be in this case isa_virt_to_bus

Thats actually a real bug (2.4 included) the bugbuf should be allocated
as part of the pci_alloc_consistent space. 2.4 also wants fixing for this
problem since if es1370 is modular bugbuf is vmalloc and virt_to_bus won't
do the right thing
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