Hello. On čtvrtek 27. ledna 2022 12:32:57 CET Sebastian Andrzej Siewior wrote: > Provide generic_handle_irq_safe() which can be used can used from any > context. > > Suggested-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > --- > 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 > Reviewed-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> Thank you. -- Oleksandr Natalenko (post-factum)