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* [PATCH] arm64: ipi_teardown() should depend on HOTPLUG_CPU
@ 2020-09-18 15:35 ` Sergey Senozhatsky
  0 siblings, 0 replies; 8+ messages in thread
From: Sergey Senozhatsky @ 2020-09-18 15:35 UTC (permalink / raw)
  To: Catalin Marinas, Will Deacon
  Cc: Marc Zyngier, linux-kernel, linux-arm-kernel, Sergey Senozhatsky

ipi_teardown() is used only when CONFIG_HOTPLUG_CPU is set.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 arch/arm64/kernel/smp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index b6bde2675ccc..82e75fc2c903 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -82,9 +82,9 @@ static int nr_ipi __read_mostly = NR_IPI;
 static struct irq_desc *ipi_desc[NR_IPI] __read_mostly;
 
 static void ipi_setup(int cpu);
-static void ipi_teardown(int cpu);
 
 #ifdef CONFIG_HOTPLUG_CPU
+static void ipi_teardown(int cpu);
 static int op_cpu_kill(unsigned int cpu);
 #else
 static inline int op_cpu_kill(unsigned int cpu)
@@ -964,6 +964,7 @@ static void ipi_setup(int cpu)
 		enable_percpu_irq(ipi_irq_base + i, 0);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 static void ipi_teardown(int cpu)
 {
 	int i;
@@ -974,6 +975,7 @@ static void ipi_teardown(int cpu)
 	for (i = 0; i < nr_ipi; i++)
 		disable_percpu_irq(ipi_irq_base + i);
 }
+#endif
 
 void __init set_smp_ipi_range(int ipi_base, int n)
 {
-- 
2.28.0


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^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2020-09-18 23:15 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-09-18 15:35 [PATCH] arm64: ipi_teardown() should depend on HOTPLUG_CPU Sergey Senozhatsky
2020-09-18 15:35 ` Sergey Senozhatsky
2020-09-18 15:41 ` Will Deacon
2020-09-18 15:41   ` Will Deacon
2020-09-18 16:07   ` Marc Zyngier
2020-09-18 16:07     ` Marc Zyngier
2020-09-18 23:13     ` Sergey Senozhatsky
2020-09-18 23:13       ` Sergey Senozhatsky

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