[GIT pull] irq/core for v7.3-rc1
From: Thomas Gleixner
Date: Mon Aug 17 2026 - 07:23:43 EST
Linus,
please pull the latest irq/core branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-core-2026-08-17
up to: 1ad6d4a722f5: MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
Generic interrupt subsystem updates:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
Thanks,
tglx
------------------>
Kemeng Shi (3):
irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
Li RongQing (1):
genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
Radu Rendec (2):
genirq: Remove unnecessary NULL check of the kstat_irqs field
parisc: Remove unnecessary NULL check of the kstat_irqs field
Thomas Gleixner (1):
MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
MAINTAINERS | 3 +++
arch/parisc/kernel/smp.c | 2 +-
include/linux/irqdesc.h | 2 +-
kernel/irq/irqdesc.c | 11 ++++-------
kernel/irq/irqdomain.c | 8 +++++---
kernel/irq/manage.c | 6 +-----
kernel/irq/msi.c | 2 +-
7 files changed, 16 insertions(+), 18 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 15011f5752a9..ebf9d388e939 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13712,6 +13712,7 @@ F: sound/soc/codecs/sma*
IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
M: Thomas Gleixner <tglx@xxxxxxxxxx>
+R: Radu Rendec <radu@xxxxxxxxxx>
S: Maintained
P: Documentation/process/maintainer-tip.rst
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
@@ -13723,6 +13724,7 @@ F: kernel/irq/msi.c
IRQ SUBSYSTEM
M: Thomas Gleixner <tglx@xxxxxxxxxx>
+R: Radu Rendec <radu@xxxxxxxxxx>
L: linux-kernel@xxxxxxxxxxxxxxx
S: Maintained
P: Documentation/process/maintainer-tip.rst
@@ -13737,6 +13739,7 @@ F: lib/group_cpus.c
IRQCHIP DRIVERS
M: Thomas Gleixner <tglx@xxxxxxxxxx>
+R: Radu Rendec <radu@xxxxxxxxxx>
L: linux-kernel@xxxxxxxxxxxxxxx
S: Maintained
P: Documentation/process/maintainer-tip.rst
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index b2d12ab728b1..36be17e32948 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -343,7 +343,7 @@ static int smp_boot_one_cpu(int cpuid, struct task_struct *idle)
for (i = 0; i < NR_IRQS; i++) {
struct irq_desc *desc = irq_to_desc(i);
- if (desc && desc->kstat_irqs)
+ if (desc)
*per_cpu_ptr(desc->kstat_irqs, cpuid) = (struct irqstat) { };
}
#endif
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 8080db17c1b1..779d6023c5c2 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -146,7 +146,7 @@ extern struct irq_desc irq_desc[NR_IRQS];
static inline unsigned int irq_desc_kstat_cpu(struct irq_desc *desc,
unsigned int cpu)
{
- return desc->kstat_irqs ? per_cpu(desc->kstat_irqs->cnt, cpu) : 0;
+ return per_cpu(desc->kstat_irqs->cnt, cpu);
}
static inline struct irq_desc *irq_data_to_desc(struct irq_data *data)
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 80ef4e27dcf4..3a818f07a101 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -1004,7 +1004,7 @@ unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
struct irq_desc *desc = irq_to_desc(irq);
- return desc && desc->kstat_irqs ? per_cpu(desc->kstat_irqs->cnt, cpu) : 0;
+ return desc ? irq_desc_kstat_cpu(desc, cpu) : 0;
}
static unsigned int kstat_irqs_desc(struct irq_desc *desc, const struct cpumask *cpumask)
@@ -1026,7 +1026,7 @@ static unsigned int kstat_irqs(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
- if (!desc || !desc->kstat_irqs)
+ if (!desc)
return 0;
return kstat_irqs_desc(desc, cpu_possible_mask);
}
@@ -1038,18 +1038,15 @@ void kstat_snapshot_irqs(void)
struct irq_desc *desc;
unsigned int irq;
- for_each_irq_desc(irq, desc) {
- if (!desc->kstat_irqs)
- continue;
+ for_each_irq_desc(irq, desc)
this_cpu_write(desc->kstat_irqs->ref, this_cpu_read(desc->kstat_irqs->cnt));
- }
}
unsigned int kstat_get_irq_since_snapshot(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
- if (!desc || !desc->kstat_irqs)
+ if (!desc)
return 0;
return this_cpu_read(desc->kstat_irqs->cnt) - this_cpu_read(desc->kstat_irqs->ref);
}
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index f15c9f1223bb..57c819da30c2 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1658,7 +1658,7 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base,
for (i = 0; i < nr_irqs; i++) {
ret = irq_domain_trim_hierarchy(virq + i);
if (ret)
- goto out_free_irq_data;
+ goto out_free_irqs;
}
for (i = 0; i < nr_irqs; i++)
@@ -1666,6 +1666,8 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base,
return virq;
+out_free_irqs:
+ irq_domain_free_irqs_hierarchy(domain, virq, nr_irqs);
out_free_irq_data:
irq_domain_free_irq_data(virq, nr_irqs);
out_free_desc:
@@ -1963,7 +1965,7 @@ EXPORT_SYMBOL_GPL(irq_domain_free_irqs_parent);
static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
{
- if (irq_data && irq_data->domain) {
+ if (irq_data->domain) {
struct irq_domain *domain = irq_data->domain;
if (domain->ops->deactivate)
@@ -1977,7 +1979,7 @@ static int __irq_domain_activate_irq(struct irq_data *irqd, bool reserve)
{
int ret = 0;
- if (irqd && irqd->domain) {
+ if (irqd->domain) {
struct irq_domain *domain = irqd->domain;
if (irqd->parent_data)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 7eb07e3bdb4c..4fa569db8ec7 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -2703,11 +2703,7 @@ static int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state
return -ENODEV;
if (chip->irq_get_irqchip_state)
break;
-#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
- data = data->parent_data;
-#else
- data = NULL;
-#endif
+ data = irqd_get_parent_data(data);
} while (data);
if (data)
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 903be7289c53..fb5f372215bf 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -1683,7 +1683,6 @@ void msi_domain_free_irqs_range(struct device *dev, unsigned int domid,
guard(msi_descs_lock)(dev);
msi_domain_free_irqs_range_locked(dev, domid, first, last);
}
-EXPORT_SYMBOL_GPL(msi_domain_free_irqs_all);
/**
* msi_domain_free_irqs_all_locked - Free all interrupts from a MSI interrupt domain
@@ -1714,6 +1713,7 @@ void msi_domain_free_irqs_all(struct device *dev, unsigned int domid)
guard(msi_descs_lock)(dev);
msi_domain_free_irqs_all_locked(dev, domid);
}
+EXPORT_SYMBOL_GPL(msi_domain_free_irqs_all);
/**
* msi_device_domain_free_wired - Free a wired interrupt in @domain