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| author | YueHaibing <yuehaibing@huawei.com> | 2020-09-18 20:33:18 +0800 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-09-18 16:59:20 +0100 |
| commit | 9d9edb962e910552c9c008800ec907293a47852e (patch) | |
| tree | b2c6f043484966cca4ea5a00eb4f814905ea0eaa /arch/arm64/kernel/smp.c | |
| parent | 8594c3b85171b6f68e34e07b533ec2f1bf7fb065 (diff) | |
| download | linux-stable-9d9edb962e910552c9c008800ec907293a47852e.tar.gz linux-stable-9d9edb962e910552c9c008800ec907293a47852e.tar.bz2 linux-stable-9d9edb962e910552c9c008800ec907293a47852e.zip | |
arm64: Fix -Wunused-function warning when !CONFIG_HOTPLUG_CPU
If CONFIG_HOTPLUG_CPU is n, gcc warns:
arch/arm64/kernel/smp.c:967:13: warning: ‘ipi_teardown’ defined but not used [-Wunused-function]
static void ipi_teardown(int cpu)
^~~~~~~~~~~~
Use #ifdef guard this.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200918123318.23764-1-yuehaibing@huawei.com
Diffstat (limited to 'arch/arm64/kernel/smp.c')
| -rw-r--r-- | arch/arm64/kernel/smp.c | 4 |
1 files changed, 3 insertions, 1 deletions
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) { |