[IA64] change arch_memory_op #def to a prototype

Signed-off-by: Alex Williamson <alex.williamson@hp.com>

diff --git a/xen/include/asm-ia64/mm.h b/xen/include/asm-ia64/mm.h
index 5bc654802ddd1688403e439cc8d4ba60bb3c81c3..e5e969d1c390b82804ca4a3a6d25ffa76b501721 100644 (file)
--- a/xen/include/asm-ia64/mm.h
+++ b/xen/include/asm-ia64/mm.h
@@ -495,7 +495,7 @@ extern u64 translate_domain_pte(u64 pteval, u64 address, u64 itir__, u64* logps,
     ((gmfn_to_mfn((_d),(gpa)>>PAGE_SHIFT)<<PAGE_SHIFT)|((gpa)&~PAGE_MASK))
 
 /* Arch-specific portion of memory_op hypercall. */
-#define arch_memory_op(op, arg) (-ENOSYS)
+long arch_memory_op(int op, XEN_GUEST_HANDLE(void) arg);
 
 int steal_page(
     struct domain *d, struct page_info *page, unsigned int memflags);