From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: [PATCH] arm64: ipi_teardown() should depend on HOTPLUG_CPU
Date: Sat, 19 Sep 2020 00:35:48 +0900 [thread overview]
Message-ID: <20200918153548.836986-1-sergey.senozhatsky@gmail.com> (raw)
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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next reply other threads:[~2020-09-18 15:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 15:35 Sergey Senozhatsky [this message]
2020-09-18 15:41 ` [PATCH] arm64: ipi_teardown() should depend on HOTPLUG_CPU Will Deacon
2020-09-18 16:07 ` Marc Zyngier
2020-09-18 23:13 ` Sergey Senozhatsky
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