[patch 07/30] genirq: Make kstat_irqs() static
From: Thomas Gleixner <hidden>
Date: 2020-12-10 20:10:08
Also in:
dri-devel, intel-gfx, linux-gpio, linux-pci, linux-rdma, linux-s390, lkml, xen-devel
No more users outside the core code. Signed-off-by: Thomas Gleixner <redacted> --- include/linux/kernel_stat.h | 1 - kernel/irq/irqdesc.c | 19 ++++++------------- 2 files changed, 6 insertions(+), 14 deletions(-)
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h@@ -67,7 +67,6 @@ static inline unsigned int kstat_softirq /* * Number of interrupts per specific IRQ source, since bootup */ -extern unsigned int kstat_irqs(unsigned int irq); extern unsigned int kstat_irqs_usr(unsigned int irq); /* --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c
@@ -924,15 +924,7 @@ static bool irq_is_nmi(struct irq_desc * return desc->istate & IRQS_NMI; } -/** - * kstat_irqs - Get the statistics for an interrupt - * @irq: The interrupt number - * - * Returns the sum of interrupt counts on all cpus since boot for - * @irq. The caller must ensure that the interrupt is not removed - * concurrently. - */ -unsigned int kstat_irqs(unsigned int irq) +static unsigned int kstat_irqs(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); unsigned int sum = 0;
@@ -951,13 +943,14 @@ unsigned int kstat_irqs(unsigned int irq } /** - * kstat_irqs_usr - Get the statistics for an interrupt + * kstat_irqs_usr - Get the statistics for an interrupt from thread context * @irq: The interrupt number * * Returns the sum of interrupt counts on all cpus since boot for @irq. - * Contrary to kstat_irqs() this can be called from any context. - * It uses rcu since a concurrent removal of an interrupt descriptor is - * observing an rcu grace period before delayed_free_desc()/irq_kobj_release(). + * + * It uses rcu to protect the access since a concurrent removal of an + * interrupt descriptor is observing an rcu grace period before + * delayed_free_desc()/irq_kobj_release(). */ unsigned int kstat_irqs_usr(unsigned int irq) {