1.1 --- a/linux-2.6-xen-sparse/include/asm-ia64/maddr.h	Thu Jan 04 15:25:47 2007 -0700
     1.2 +++ b/linux-2.6-xen-sparse/include/asm-ia64/maddr.h	Thu Jan 04 15:28:16 2007 -0700
     1.3 @@ -68,7 +68,6 @@ machine_to_phys_for_dma(unsigned long ma
     1.4  static inline unsigned long
     1.5  mfn_to_local_pfn(unsigned long mfn)
     1.6  {
     1.7 -	extern unsigned long max_mapnr;
     1.8  	unsigned long pfn = mfn_to_pfn_for_dma(mfn);
     1.9  	if (!pfn_valid(pfn))
    1.10  		return INVALID_P2M_ENTRY;

     2.1 --- a/linux-2.6-xen-sparse/include/asm-ia64/page.h	Thu Jan 04 15:25:47 2007 -0700
     2.2 +++ b/linux-2.6-xen-sparse/include/asm-ia64/page.h	Thu Jan 04 15:28:16 2007 -0700
     2.3 @@ -105,6 +105,7 @@ extern int ia64_pfn_valid (unsigned long
     2.4  #endif
     2.5  
     2.6  #ifdef CONFIG_FLATMEM
     2.7 +extern unsigned long max_mapnr;
     2.8  # define pfn_valid(pfn)		(((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
     2.9  # define page_to_pfn(page)	((unsigned long) (page - mem_map))
    2.10  # define pfn_to_page(pfn)	(mem_map + (pfn))