linux-kernel - [PATCH 3.2 093/153] powerpc/pseries: Add empty update_numa_cpu_lookup

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Date:   Wed, 30 May 2018 11:52:41 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Michael Ellerman" <mpe@...erman.id.au>,
        "Corentin Labbe" <clabbe@...libre.com>
Subject: [PATCH 3.2 093/153] powerpc/pseries: Add empty update_numa_cpu_lookup_table()
 for NUMA=n

3.2.102-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Corentin Labbe <clabbe@...libre.com>

commit c1e150ceb61e4a585bad156da15c33bfe89f5858 upstream.

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 <clabbe@...libre.com>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/powerpc/include/asm/topology.h | 3 +++
 1 file changed, 3 insertions(+)

--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -107,6 +107,9 @@ static inline void sysfs_remove_device_f
 						int nid)
 {
 }
+
+static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) {}
+
 #endif /* CONFIG_NUMA */
 
 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)