powerpc/pseries: Add empty update_numa_cpu_lookup_table() for NUMA=n

Web:        https://git.kernel.org/torvalds/c/c1e150ceb61e4a585bad156da15c33bfe89f5858
Commit:     c1e150ceb61e4a585bad156da15c33bfe89f5858
Parent:     e7bde88cdb4f0e432398a7d29ca2a15d2c18952a
Refname:    refs/heads/master
Author:     Corentin Labbe <[email protected]>
AuthorDate: Wed Feb 14 12:17:47 2018 +0000
Committer:  Michael Ellerman <[email protected]>
CommitDate: Thu Feb 15 10:10:02 2018 +1100

    powerpc/pseries: Add empty update_numa_cpu_lookup_table() for NUMA=n
    
    When CONFIG_NUMA is not set, the build fails with:
    
      arch/powerpc/platforms/pseries/hotplug-cpu.c:335:4:
      error: déclaration implicite de la fonction « update_numa_cpu_lookup_table »
    
    So we have to add update_numa_cpu_lookup_table() as an empty function
    when CONFIG_NUMA is not set.
    
    Fixes: 1d9a090783be ("powerpc/numa: Invalidate numa_cpu_lookup_table on cpu remove")
    Signed-off-by: Corentin Labbe <[email protected]>
    Signed-off-by: Michael Ellerman <[email protected]>
---
 arch/powerpc/include/asm/topology.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index 593248110902..9f421641a35c 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -81,6 +81,9 @@ static inline int numa_update_cpu_topology(bool cpus_locked)
 {
 	return 0;
 }
+
+static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) {}
+
 #endif /* CONFIG_NUMA */
 
 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
--
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