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genirq: Remove desc->status when GENERIC_HARDIRQS_NO_COMPAT=y 

If everything uses the right accessors, then enabling
GENERIC_HARDIRQS_NO_COMPAT should just work. If not it will tell you.

Don't be lazy and use the trick which I use in the core code!

git grep status_use_accessors

will unearth it in a split second. Offenders are tracked down and not
slapped with stinking trouts. This time we use frozen shark for a
better educational value.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-10 22:01:25 +01:00
parent e1ef824146
commit a6967caf00
3 changed files with 11 additions and 0 deletions
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6
include/linux/irqdesc.h
View File

@ -64,7 +64,11 @@ struct irq_desc {
unsigned int __percpu *kstat_irqs;
irq_flow_handler_t handle_irq;
struct irqaction *action; /* IRQ action list */
#ifdef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
unsigned int status_use_accessors;
#else
unsigned int status; /* IRQ status */
#endif
unsigned int core_internal_state__do_not_mess_with_it;
unsigned int depth; /* nested irq disables */
unsigned int wake_depth; /* nested wake enables */
@ -164,6 +168,7 @@ static inline int irq_has_action(unsigned int irq)
return desc->action != NULL;
}
#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
static inline int irq_balancing_disabled(unsigned int irq)
{
struct irq_desc *desc;
@ -171,6 +176,7 @@ static inline int irq_balancing_disabled(unsigned int irq)
desc = irq_to_desc(irq);
return desc->status & IRQ_NO_BALANCING_MASK;
}
#endif
/* caller has locked the irq_desc and both params are valid */
static inline void __set_irq_handler_unlocked(int irq,

4
kernel/irq/internals.h
View File

@ -15,6 +15,10 @@
#define istate core_internal_state__do_not_mess_with_it
#ifdef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
# define status status_use_accessors
#endif
extern int noirqdebug;
/*

1
kernel/irq/settings.h
View File

@ -134,4 +134,5 @@ static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
}
/* Nothing should touch desc->status from now on */
#undef status
#define status USE_THE_PROPER_WRAPPERS_YOU_MORON