Commit ef79f8e1 authored Sep 24, 2009 by Rusty Russell

cpumask: remove unused mask field from struct irqaction.



Up until 1.1.83, the primitive human tribes used struct sigaction for
interrupts.  The sa_mask field was overloaded to hold a pointer to the
name.

When someone created the new "struct irqaction" they carried across
the "mask" field as a kind of ancestor worship: the fact that it was
unused makes clear its spiritual significance.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

parent 1d1afc19

include/linux/interrupt.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -97,7 +97,6 @@ typedef irqreturn_t (irq_handler_t)(int, void );
		struct irqaction {
		irq_handler_t handler;
		unsigned long flags;
		cpumask_t mask;
		const char *name;
		void *dev_id;
		struct irqaction *next;