[PATCH] arm64: mm: only initialize swiotlb when necessary

[Jisheng Zhang]

Dear Catalin,

On Wed, 8 Jun 2016 13:13:56 +0100 Catalin Marinas wrote:

> On Wed, Jun 08, 2016 at 03:53:46PM +0800, Jisheng Zhang wrote:
> > --- a/arch/arm64/mm/dma-mapping.c
> > +++ b/arch/arm64/mm/dma-mapping.c
> > @@ -19,6 +19,7 @@
> >  
> >  #include <linux/gfp.h>
> >  #include <linux/acpi.h>
> > +#include <linux/bootmem.h>
> >  #include <linux/export.h>
> >  #include <linux/slab.h>
> >  #include <linux/genalloc.h>  
> 
> Why is this include needed?
> 

This is for max_pfn

Thanks,
Jisheng