Hi,
On 1/27/22 12:32, Sebastian Andrzej Siewior wrote:
Provide generic_handle_irq_safe() which can be used can used from any context.
Suggested-by: Thomas Gleixner tglx@linutronix.de Signed-off-by: Sebastian Andrzej Siewior bigeasy@linutronix.de
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede hdegoede@redhat.com
Regards,
Hans
include/linux/irqdesc.h | 1 + kernel/irq/irqdesc.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 93d270ca0c567..a77584593f7d1 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -160,6 +160,7 @@ static inline void generic_handle_irq_desc(struct irq_desc *desc) int handle_irq_desc(struct irq_desc *desc); int generic_handle_irq(unsigned int irq); +int generic_handle_irq_safe(unsigned int irq); #ifdef CONFIG_IRQ_DOMAIN /* diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 2267e6527db3c..97223df2f460e 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -662,6 +662,27 @@ int generic_handle_irq(unsigned int irq) } EXPORT_SYMBOL_GPL(generic_handle_irq); +/**
- generic_handle_irq_safe - Invoke the handler for a particular irq
- @irq: The irq number to handle
- Returns: 0 on success, or -EINVAL if conversion has failed
- This function must be called either from an IRQ context with irq regs
- initialized or with care from any context.
- */
+int generic_handle_irq_safe(unsigned int irq) +{
- unsigned long flags;
- int ret;
- local_irq_save(flags);
- ret = handle_irq_desc(irq_to_desc(irq));
- local_irq_restore(flags);
- return ret;
+} +EXPORT_SYMBOL_GPL(generic_handle_irq_safe);
#ifdef CONFIG_IRQ_DOMAIN /**
- generic_handle_domain_irq - Invoke the handler for a HW irq belonging