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| author |   Joel Savitz <jsavitz@redhat.com> | 2021-07-31 01:07:40 -0400 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2021-08-10 15:06:04 +0200 |
| commit | 61377ec144574313ebfbf31685895a7b9b9b7a9a (patch) | |
| tree | 8c860862d3debf54c06f61e13c547bae6bd10a20 /kernel/irq | |
| parent | genirq/affinity: Replace deprecated CPU-hotplug functions. (diff) | |
| download | linux-dev-61377ec144574313ebfbf31685895a7b9b9b7a9a.tar.xz linux-dev-61377ec144574313ebfbf31685895a7b9b9b7a9a.zip | |
genirq: Clarify documentation for request_threaded_irq()
Clarify wording and document commonly used IRQF_ONESHOT flag.
Signed-off-by: Joel Savitz <jsavitz@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210731050740.444454-1-jsavitz@redhat.com
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index ef30b4762947..766468a2fc5a 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -2072,9 +2072,9 @@ const void *free_nmi(unsigned int irq, void *dev_id) * request_threaded_irq - allocate an interrupt line * @irq: Interrupt line to allocate * @handler: Function to be called when the IRQ occurs. - * Primary handler for threaded interrupts - * If NULL and thread_fn != NULL the default - * primary handler is installed + * Primary handler for threaded interrupts. + * If handler is NULL and thread_fn != NULL + * the default primary handler is installed. * @thread_fn: Function called from the irq handler thread * If NULL, no irq thread is created * @irqflags: Interrupt type flags @@ -2108,6 +2108,8 @@ const void *free_nmi(unsigned int irq, void *dev_id) * * IRQF_SHARED Interrupt is shared * IRQF_TRIGGER_* Specify active edge(s) or level + * IRQF_ONESHOT Do not unmask interrupt line until + * thread_fn returns * */ int request_threaded_irq(unsigned int irq, irq_handler_t handler, |