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 <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jarkko Sakkinen <[email protected]> Cc: Jason Gunthorpe <[email protected]> Cc: Peter Huewe <[email protected]> Cc: James Bottomley <[email protected]> Cc: Matthew Garrett <[email protected]> Cc: Hans de Goede <[email protected]> Signed-off-by: Jerry Snitselaar <[email protected]> --- 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 -- 2.27.0
