Re: [PATCH] Drop ISA dependencies from IRDA drivers

[Martin Diehl <lists@xxxxxxxxx>]

On Fri, 16 Jul 2004, Andi Kleen wrote:

> > According to include/asm-x86_64/dma-mapping.h there is no such override 
> > for x86-64. Hence the generic implementation is used which Oopses when 
> > called with dev=NULL in dma_alloc_coherent because it dereferences dev 
> > unconditionally.
> 
> The old pci_alloc_coherent supported hwdev == NULL under x86-64.
> dma_alloc_consistent() should too. I will fix that. 

Ok, thanks. This sounds like the right solution. I think most/all 
functions in include/asm-generic/dma-mapping.h are not prepared to accept 
dev=NULL parameters, so it's a bit more than just dma_alloc_coherent() :-(

Martin