[IA64] Build fix for __early_pfn_to_nid() undefined link error

ia64 only defines __early_pfn_to_nid() for SPARSEMEM && NUMA configurations,
so the recent:

	commit: f2dbcfa738368c8a40d4a5f0b65dc9879577cb21
	mm: clean up for early_pfn_to_nid()

ends up with some link problems for certain configuration files.

Fix arch/ia64/Kconfig to only define HAVE_ARCH_EARLY_PFN_TO_NID in the
cases where we do provide this function.

Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 6183aec..20d6d28 100644 (file)
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -479,8 +479,7 @@ config HOLES_IN_ZONE
        default y if VIRTUAL_MEM_MAP
 
 config HAVE_ARCH_EARLY_PFN_TO_NID
-       def_bool y
-       depends on NEED_MULTIPLE_NODES
+       def_bool NUMA && SPARSEMEM
 
 config HAVE_ARCH_NODEDATA_EXTENSION
        def_bool y