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Message-Id: <20250908163127.2462948-25-maz@kernel.org>
Date: Mon, 8 Sep 2025 17:31:26 +0100
From: Marc Zyngier <maz@...nel.org>
To: linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-acpi@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
Mark Rutland <mark.rutland@....com>,
Will Deacon <will@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Rob Herring <robh@...nel.org>,
Saravana Kannan <saravanak@...gle.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Sven Peter <sven@...nel.org>,
Janne Grunau <j@...nau.net>,
Suzuki K Poulose <suzuki.poulose@....com>,
James Clark <james.clark@...aro.org>
Subject: [PATCH 24/25] genirq: Kill irq_{g,s}et_percpu_devid_partition()
These two helpers do not have any user anymore, and can be removed,
together with the affinity field kept in the irqdesc structure.
Signed-off-by: Marc Zyngier <maz@...nel.org>
---
include/linux/irq.h | 4 ----
include/linux/irqdesc.h | 1 -
kernel/irq/irqdesc.c | 24 +-----------------------
3 files changed, 1 insertion(+), 28 deletions(-)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 1d6b606a81efe..c107125f51283 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -717,10 +717,6 @@ static inline void irq_set_chip_and_handler(unsigned int irq,
}
extern int irq_set_percpu_devid(unsigned int irq);
-extern int irq_set_percpu_devid_partition(unsigned int irq,
- const struct cpumask *affinity);
-extern int irq_get_percpu_devid_partition(unsigned int irq,
- struct cpumask *affinity);
extern void
__irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index fd091c35d5721..37e0b5b5600a4 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -82,7 +82,6 @@ struct irq_desc {
int threads_handled_last;
raw_spinlock_t lock;
struct cpumask *percpu_enabled;
- const struct cpumask *percpu_affinity;
#ifdef CONFIG_SMP
const struct cpumask *affinity_hint;
struct irq_affinity_notify *affinity_notify;
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index b64c57b44c203..79df6e3bc3958 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -886,8 +886,7 @@ void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus)
chip_bus_sync_unlock(desc);
}
-int irq_set_percpu_devid_partition(unsigned int irq,
- const struct cpumask *affinity)
+int irq_set_percpu_devid(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
@@ -899,31 +898,10 @@ int irq_set_percpu_devid_partition(unsigned int irq,
if (!desc->percpu_enabled)
return -ENOMEM;
- desc->percpu_affinity = affinity ? : cpu_possible_mask;
-
irq_set_percpu_devid_flags(irq);
return 0;
}
-int irq_set_percpu_devid(unsigned int irq)
-{
- return irq_set_percpu_devid_partition(irq, NULL);
-}
-
-int irq_get_percpu_devid_partition(unsigned int irq, struct cpumask *affinity)
-{
- struct irq_desc *desc = irq_to_desc(irq);
-
- if (!desc || !desc->percpu_enabled)
- return -EINVAL;
-
- if (affinity)
- cpumask_copy(affinity, desc->percpu_affinity);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(irq_get_percpu_devid_partition);
-
void kstat_incr_irq_this_cpu(unsigned int irq)
{
kstat_incr_irqs_this_cpu(irq_to_desc(irq));
--
2.39.2
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