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genirq: Make kstat_irqs() static

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No more users outside the core code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201210194043.268774449@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-12-10 20:25:43 +01:00
parent bb0e5192f5
commit 26c19d0a86
2 changed files with 6 additions and 14 deletions
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1
include/linux/kernel_stat.h
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@@ -67,7 +67,6 @@ static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
/* /*
* Number of interrupts per specific IRQ source, since bootup * 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); extern unsigned int kstat_irqs_usr(unsigned int irq);
/* /*

19
kernel/irq/irqdesc.c
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@@ -924,15 +924,7 @@ static bool irq_is_nmi(struct irq_desc *desc)
return desc->istate & IRQS_NMI; return desc->istate & IRQS_NMI;
} }
/** static unsigned int kstat_irqs(unsigned int irq)
* 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)
{ {
struct irq_desc *desc = irq_to_desc(irq); struct irq_desc *desc = irq_to_desc(irq);
unsigned int sum = 0; 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 * @irq: The interrupt number
* *
* Returns the sum of interrupt counts on all cpus since boot for @irq. * 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 * It uses rcu to protect the access since a concurrent removal of an
* observing an rcu grace period before delayed_free_desc()/irq_kobj_release(). * interrupt descriptor is observing an rcu grace period before
* delayed_free_desc()/irq_kobj_release().
*/ */
unsigned int kstat_irqs_usr(unsigned int irq) unsigned int kstat_irqs_usr(unsigned int irq)
{ {