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authorMarc Zyngier <maz@kernel.org>2021-10-21 18:04:14 +0100
committerMarc Zyngier <maz@kernel.org>2021-10-26 11:19:55 +0100
commit8d15a7295d33538954df2bca6a4011e4311a9cc2 (patch)
treea03ffb452c503a08896a04f5de20e42071c4167a /kernel/irq
parentdd098a0e031928cf88c89f7577d31821e1f0e6de (diff)
genirq: Hide irq_cpu_{on,off}line() behind a deprecated option
irq_cpu_{on,off}line() are now only used by the Octeon platform. Make their use conditional on this plaform being enabled, and otherwise hidden away. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Serge Semin <fancer.lancer@gmail.com> Link: https://lore.kernel.org/r/20211021170414.3341522-4-maz@kernel.org
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/Kconfig7
-rw-r--r--kernel/irq/chip.c2
2 files changed, 9 insertions, 0 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index fbc54c2a7f23..c0b9d4607147 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -144,3 +144,10 @@ config GENERIC_IRQ_MULTI_HANDLER
bool
help
Allow to specify the low level IRQ handler at run time.
+
+# Cavium Octeon is the last system to use this deprecated option
+# Do not even think of enabling this on any new platform
+config DEPRECATED_IRQ_CPU_ONOFFLINE
+ bool
+ depends on CAVIUM_OCTEON_SOC
+ default CAVIUM_OCTEON_SOC
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index a98bcfc4be7b..f895265d7548 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -1122,6 +1122,7 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
}
EXPORT_SYMBOL_GPL(irq_modify_status);
+#ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
/**
* irq_cpu_online - Invoke all irq_cpu_online functions.
*
@@ -1181,6 +1182,7 @@ void irq_cpu_offline(void)
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
}
+#endif
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY