lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] genirq: cleanup: misc code cleanups

Browse Source 
Assorted code cleanups to the generic IRQ code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar
2006-06-29 02:24:40 -07:00
committed by Linus Torvalds
parent 2e60bbb6d5
commit 06fcb0c6fb
5 changed files with 66 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
kernel/irq/manage.c
View File

@@ -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);