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Subject[patch 2/5] x86: avoid compiling NUMA emulation functions without CONFIG_NUMA_EMU
Both acpi_get_nodes() and k8_get_nodes() are only necessary when
CONFIG_NUMA_EMU is enabled, so avoid compiling them when the option is
disabled.

Signed-off-by: David Rientjes <rientjes@google.com>
---
arch/x86/include/asm/acpi.h | 5 ++++-
arch/x86/include/asm/amd_nb.h | 5 ++++-
arch/x86/mm/k8topology_64.c | 2 ++
arch/x86/mm/srat_64.c | 2 ++
4 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -188,14 +188,17 @@ extern int acpi_numa;
extern int acpi_get_nodes(struct bootnode *physnodes);
extern int acpi_scan_nodes(unsigned long start, unsigned long end);
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
+
+#ifdef CONFIG_NUMA_EMU
extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
int num_nodes);
+#endif
#else
static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
int num_nodes)
{
}
-#endif
+#endif /* CONFIG_ACPI_NUMA */

#define acpi_unlazy_tlb(x) leave_mm(x)

diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -9,10 +9,13 @@ struct bootnode;
extern int early_is_k8_nb(u32 value);
extern int cache_k8_northbridges(void);
extern void k8_flush_garts(void);
-extern int k8_get_nodes(struct bootnode *nodes);
extern int k8_numa_init(unsigned long start_pfn, unsigned long end_pfn);
extern int k8_scan_nodes(void);

+#ifdef CONFIG_NUMA_EMU
+extern int k8_get_nodes(struct bootnode *nodes);
+#endif
+
struct k8_northbridge_info {
u16 num;
u8 gart_supported;
diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -69,6 +69,7 @@ static __init void early_get_boot_cpu_id(void)
early_init_lapic_mapping();
}

+#ifdef CONFIG_NUMA_EMU
int __init k8_get_nodes(struct bootnode *physnodes)
{
int i;
@@ -81,6 +82,7 @@ int __init k8_get_nodes(struct bootnode *physnodes)
}
return ret;
}
+#endif /* CONFIG_NUMA_EMU */

int __init k8_numa_init(unsigned long start_pfn, unsigned long end_pfn)
{
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -339,6 +339,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)

void __init acpi_numa_arch_fixup(void) {}

+#ifdef CONFIG_NUMA_EMU
int __init acpi_get_nodes(struct bootnode *physnodes)
{
int i;
@@ -351,6 +352,7 @@ int __init acpi_get_nodes(struct bootnode *physnodes)
}
return ret;
}
+#endif /* CONFIG_NUMA_EMU */

/* Use the information discovered above to actually set up the nodes. */
int __init acpi_scan_nodes(unsigned long start, unsigned long end)

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