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Commit a1b7febd authored by Maxime Ripard's avatar Maxime Ripard Committed by David S. Miller
Browse files

genirq: Fix the documentation of request_percpu_irq 



The documentation of request_percpu_irq is confusing and suggest that the
interrupt is not enabled at all, while it is actually enabled on the local
CPU.

Clarify that.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a4683a5

kernel/irq/manage.c

+4 −3
Original line number Diff line number Diff line
@@ -1790,9 +1790,10 @@ int setup_percpu_irq(unsigned int irq, struct irqaction *act) 
 *	@devname: An ascii name for the claiming device

 *	@dev_id: A percpu cookie passed back to the handler function

 *

 *	This call allocates interrupt resources, but doesn't

 *	automatically enable the interrupt. It has to be done on each

 *	CPU using enable_percpu_irq().

 *	This call allocates interrupt resources and enables the

 *	interrupt on the local CPU. If the interrupt is supposed to be

 *	enabled on other CPUs, it has to be done on each CPU using

 *	enable_percpu_irq().

 *

 *	Dev_id must be globally unique. It is a per-cpu variable, and

 *	the handler gets called with the interrupted CPU's instance of