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Subject[PATCH 1/1] Fix undefined reference to 'node_reclaim_distance'.
According to and building on
sh4 is broken due to a

page_alloc.c:(.text+0x3148): undefined reference to `node_reclaim_distance'.

This only happens with CONFIG_NUMA=y (variable used with #ifdef
CONFIG_NUMA at mm/page_alloc.c:3529) and CONFIG_SMP=n (variable defined at
kernel/sched/topology.c:2291 but the whole file to be built depends on
CONFIG_SMP in kernel/sched/Makefile:23.

Follow the lead of arch/x86/Kconfig:1547 and depend on SMP.

This assumes that there are no NUMA systems without SMP which is
reasonable I guess.

Signed-off-by: Gon Solo <>
arch/sh/mm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 5c8a2ebfc720..cf655d8e8758 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -108,7 +108,7 @@ config VSYSCALL

config NUMA
bool "Non Uniform Memory Access (NUMA) Support"
- depends on MMU && SYS_SUPPORTS_NUMA
+ depends on MMU && SMP && SYS_SUPPORTS_NUMA
default n
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