To try and detect potential interrupt storms that have been occurring with tpm_tis devices it was suggested to use kstat_irqs() to get the number of interrupts. Since tpm_tis can be built as a module it needs kstat_irqs exported.
Reported-by: kernel test robot lkp@intel.com Cc: Thomas Gleixner tglx@linutronix.de Cc: Jarkko Sakkinen jarkko@kernel.org Cc: Jason Gunthorpe jgg@ziepe.ca Cc: Peter Huewe peterhuewe@gmx.de Cc: James Bottomley James.Bottomley@HansenPartnership.com Cc: Matthew Garrett mjg59@google.com Cc: Hans de Goede hdegoede@redhat.com Signed-off-by: Jerry Snitselaar jsnitsel@redhat.com --- include/linux/irqdesc.h | 1 + kernel/irq/irqdesc.c | 1 + 2 files changed, 2 insertions(+)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 5745491303e0..fff88c1f1ac6 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -153,6 +153,7 @@ static inline void generic_handle_irq_desc(struct irq_desc *desc) }
int generic_handle_irq(unsigned int irq); +unsigned int kstat_irqs(unsigned int irq);
#ifdef CONFIG_HANDLE_DOMAIN_IRQ /* diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 1a7723604399..12398ef1796b 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -1000,6 +1000,7 @@ unsigned int kstat_irqs(unsigned int irq) sum += *per_cpu_ptr(desc->kstat_irqs, cpu); return sum; } +EXPORT_SYMBOL_GPL(kstat_irqs);
/** * kstat_irqs_usr - Get the statistics for an interrupt