diff options
| author | Tobias Schumacher <ts@linux.ibm.com> | 2025-12-04 06:05:01 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-12-07 16:15:22 +0100 |
| commit | 455a65260f526cedd4680d4836ebdf2eaf1ab4c6 (patch) | |
| tree | 78e4f785fe20600bb920081c27546af6f79e2417 | |
| parent | eb9780a1a3c4ffc1f383991ce3fc50da1fe4390d (diff) | |
genirq: Change hwirq parameter to irq_hw_number_t
The irqdomain implementation internally represents hardware IRQs as
irq_hw_number_t, which is defined as unsigned long int. When providing
an irq_hw_number_t to the generic_handle_domain() functions that expect
and unsigned int hwirq, this can lead to a loss of information. Change
the hwirq parameter to irq_hw_number_t to support the full range of
hwirqs.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Tobias Schumacher <ts@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
| -rw-r--r-- | include/linux/irqdesc.h | 6 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 37e0b5b5600a..17902861de76 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -182,9 +182,9 @@ int generic_handle_irq_safe(unsigned int irq); * and handle the result interrupt number. Return -EINVAL if * conversion failed. */ -int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq); -int generic_handle_domain_irq_safe(struct irq_domain *domain, unsigned int hwirq); -int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq); +int generic_handle_domain_irq(struct irq_domain *domain, irq_hw_number_t hwirq); +int generic_handle_domain_irq_safe(struct irq_domain *domain, irq_hw_number_t hwirq); +int generic_handle_domain_nmi(struct irq_domain *domain, irq_hw_number_t hwirq); #endif /* Test to see if a driver has successfully requested an irq */ diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 6acf268f005b..f8e4e13dbe33 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -720,7 +720,7 @@ EXPORT_SYMBOL_GPL(generic_handle_irq_safe); * This function must be called from an IRQ context with irq regs * initialized. */ -int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq) +int generic_handle_domain_irq(struct irq_domain *domain, irq_hw_number_t hwirq) { return handle_irq_desc(irq_resolve_mapping(domain, hwirq)); } @@ -738,7 +738,7 @@ EXPORT_SYMBOL_GPL(generic_handle_domain_irq); * context). If the interrupt is marked as 'enforce IRQ-context only' then * the function must be invoked from hard interrupt context. */ -int generic_handle_domain_irq_safe(struct irq_domain *domain, unsigned int hwirq) +int generic_handle_domain_irq_safe(struct irq_domain *domain, irq_hw_number_t hwirq) { unsigned long flags; int ret; @@ -761,7 +761,7 @@ EXPORT_SYMBOL_GPL(generic_handle_domain_irq_safe); * This function must be called from an NMI context with irq regs * initialized. **/ -int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq) +int generic_handle_domain_nmi(struct irq_domain *domain, irq_hw_number_t hwirq) { WARN_ON_ONCE(!in_nmi()); return handle_irq_desc(irq_resolve_mapping(domain, hwirq)); |