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Subject[tip: sched/core] arch, ia64: Make NUMA select SMP
The following commit has been merged into the sched/core branch of tip:

Commit-ID: a2cbfd46559e809c8165773b7fe8afa058b35414
Author: Matt Fleming <>
AuthorDate: Thu, 08 Aug 2019 20:53:00 +01:00
Committer: Ingo Molnar <>
CommitterDate: Tue, 03 Sep 2019 09:17:36 +02:00

arch, ia64: Make NUMA select SMP

While it does make sense to allow CONFIG_NUMA and !CONFIG_SMP in
theory, it doesn't make much sense in practice.

Follow other architectures and make CONFIG_NUMA select CONFIG_SMP.

The motivation for this patch is to allow a new NUMA variable to be
initialised in kernel/sched/topology.c.

Signed-off-by: Matt Fleming <>
Signed-off-by: Peter Zijlstra (Intel) <>
Cc: Borislav Petkov <>
Cc: Linus Torvalds <>
Cc: Mel Gorman <>
Cc: Peter Zijlstra <>
Cc: Rik van Riel <>
Cc: Thomas Gleixner <>
Cc: Tony Luck <>
Signed-off-by: Ingo Molnar <>
arch/ia64/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7468d8e..997baba 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -389,6 +389,7 @@ config NUMA
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
select ACPI_NUMA if ACPI
+ select SMP
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
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