diff options
Diffstat (limited to 'kernel/irq/manage.c')
| -rw-r--r-- | kernel/irq/manage.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index c53662edc73..261906ebdf0 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -40,7 +40,6 @@ void synchronize_irq(unsigned int irq) while (desc->status & IRQ_INPROGRESS) cpu_relax(); } - EXPORT_SYMBOL(synchronize_irq); #endif @@ -71,7 +70,6 @@ void disable_irq_nosync(unsigned int irq) } spin_unlock_irqrestore(&desc->lock, flags); } - EXPORT_SYMBOL(disable_irq_nosync); /** @@ -97,7 +95,6 @@ void disable_irq(unsigned int irq) if (desc->action) synchronize_irq(irq); } - EXPORT_SYMBOL(disable_irq); /** @@ -139,7 +136,6 @@ void enable_irq(unsigned int irq) } spin_unlock_irqrestore(&desc->lock, flags); } - EXPORT_SYMBOL(enable_irq); /* @@ -166,7 +162,7 @@ int can_request_irq(unsigned int irq, unsigned long irqflags) * Internal function to register an irqaction - typically used to * allocate special interrupts that are part of the architecture. */ -int setup_irq(unsigned int irq, struct irqaction * new) +int setup_irq(unsigned int irq, struct irqaction *new) { struct irq_desc *desc = irq_desc + irq; struct irqaction *old, **p; @@ -198,9 +194,10 @@ int setup_irq(unsigned int irq, struct irqaction * new) /* * The following block of code has to be executed atomically */ - spin_lock_irqsave(&desc->lock,flags); + spin_lock_irqsave(&desc->lock, flags); p = &desc->action; - if ((old = *p) != NULL) { + old = *p; + if (old) { /* Can't share interrupts unless both agree to */ if (!(old->flags & new->flags & SA_SHIRQ)) goto mismatch; @@ -233,7 +230,7 @@ int setup_irq(unsigned int irq, struct irqaction * new) else desc->chip->enable(irq); } - spin_unlock_irqrestore(&desc->lock,flags); + spin_unlock_irqrestore(&desc->lock, flags); new->irq = irq; register_irq_proc(irq); @@ -276,10 +273,10 @@ void free_irq(unsigned int irq, void *dev_id) return; desc = irq_desc + irq; - spin_lock_irqsave(&desc->lock,flags); + spin_lock_irqsave(&desc->lock, flags); p = &desc->action; for (;;) { - struct irqaction * action = *p; + struct irqaction *action = *p; if (action) { struct irqaction **pp = p; @@ -304,7 +301,7 @@ void free_irq(unsigned int irq, void *dev_id) else desc->chip->disable(irq); } - spin_unlock_irqrestore(&desc->lock,flags); + spin_unlock_irqrestore(&desc->lock, flags); unregister_handler_proc(irq, action); /* Make sure it's not being used on another CPU */ @@ -312,12 +309,11 @@ void free_irq(unsigned int irq, void *dev_id) kfree(action); return; } - printk(KERN_ERR "Trying to free free IRQ%d\n",irq); - spin_unlock_irqrestore(&desc->lock,flags); + printk(KERN_ERR "Trying to free free IRQ%d\n", irq); + spin_unlock_irqrestore(&desc->lock, flags); return; } } - EXPORT_SYMBOL(free_irq); /** @@ -351,9 +347,9 @@ EXPORT_SYMBOL(free_irq); */ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long irqflags, const char * devname, void *dev_id) + unsigned long irqflags, const char *devname, void *dev_id) { - struct irqaction * action; + struct irqaction *action; int retval; /* @@ -388,6 +384,5 @@ int request_irq(unsigned int irq, return retval; } - EXPORT_SYMBOL(request_irq); |