[PATCH] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA

[Hoan Tran]

Some NUMA nodes have memory ranges that span other nodes.
Even though a pfn is valid and between a node's start and end pfns,
it may not reside on that node.

This patch enables NODES_SPAN_OTHER_NODES config for NUMA to support
this type of NUMA layout.

Signed-off-by: Hoan Tran <Hoan@xxxxxxxxxxxxxxxxxxxxxx>
---
 arch/arm64/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e688dfa..939d28f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -959,6 +959,13 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
 config HOLES_IN_ZONE
 	def_bool y
 
+# Some NUMA nodes have memory ranges that span other nodes.
+# Even though a pfn is valid and between a node's start and end pfns,
+# it may not reside on that node.
+config NODES_SPAN_OTHER_NODES
+	def_bool y
+	depends on ACPI_NUMA
+
 source "kernel/Kconfig.hz"
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
-- 
1.8.3.1