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genirq: Remove default magic 

Now that everything uses the wrappers, we can remove the default
functions. None of those functions is performance critical.

That makes the IRQ_MASKED flag tracking fully consistent.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Thomas Gleixner 2011-02-03 13:23:54 +01:00
parent 87923470c7
commit 50f7c03275
2 changed files with 17 additions and 60 deletions
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73
kernel/irq/chip.c
View File

@ -208,45 +208,29 @@ void irq_shutdown(struct irq_desc *desc)
{
desc->status |= IRQ_MASKED | IRQ_DISABLED;
desc->depth = 1;
desc->irq_data.chip->irq_shutdown(&desc->irq_data);
if (desc->irq_data.chip->irq_shutdown)
desc->irq_data.chip->irq_shutdown(&desc->irq_data);
if (desc->irq_data.chip->irq_disable)
desc->irq_data.chip->irq_disable(&desc->irq_data);
else
desc->irq_data.chip->irq_mask(&desc->irq_data);
}
void irq_enable(struct irq_desc *desc)
{
desc->irq_data.chip->irq_enable(&desc->irq_data);
if (desc->irq_data.chip->irq_enable)
desc->irq_data.chip->irq_enable(&desc->irq_data);
else
desc->irq_data.chip->irq_unmask(&desc->irq_data);
desc->status &= ~IRQ_MASKED;
}
void irq_disable(struct irq_desc *desc)
{
desc->irq_data.chip->irq_disable(&desc->irq_data);
}
/*
* default enable function
*/
static void default_enable(struct irq_data *data)
{
struct irq_desc *desc = irq_data_to_desc(data);
desc->irq_data.chip->irq_unmask(&desc->irq_data);
desc->status &= ~IRQ_MASKED;
}
/*
* default disable function
*/
static void default_disable(struct irq_data *data)
{
}
/*
* default shutdown function
*/
static void default_shutdown(struct irq_data *data)
{
struct irq_desc *desc = irq_data_to_desc(data);
desc->irq_data.chip->irq_mask(&desc->irq_data);
if (desc->irq_data.chip->irq_disable) {
desc->irq_data.chip->irq_disable(&desc->irq_data);
desc->status |= IRQ_MASKED;
}
}
#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
@ -334,10 +318,6 @@ static void compat_bus_sync_unlock(struct irq_data *data)
void irq_chip_set_defaults(struct irq_chip *chip)
{
#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
/*
* Compat fixup functions need to be before we set the
* defaults for enable/disable/startup/shutdown
*/
if (chip->enable)
chip->irq_enable = compat_irq_enable;
if (chip->disable)
@ -346,31 +326,8 @@ void irq_chip_set_defaults(struct irq_chip *chip)
chip->irq_shutdown = compat_irq_shutdown;
if (chip->startup)
chip->irq_startup = compat_irq_startup;
#endif
/*
* The real defaults
*/
if (!chip->irq_enable)
chip->irq_enable = default_enable;
if (!chip->irq_disable)
chip->irq_disable = default_disable;
/*
* We use chip->irq_disable, when the user provided its own. When
* we have default_disable set for chip->irq_disable, then we need
* to use default_shutdown, otherwise the irq line is not
* disabled on free_irq():
*/
if (!chip->irq_shutdown)
chip->irq_shutdown = chip->irq_disable != default_disable ?
chip->irq_disable : default_shutdown;
#ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED
if (!chip->end)
chip->end = dummy_irq_chip.end;
/*
* Now fix up the remaining compat handlers
*/
if (chip->bus_lock)
chip->irq_bus_lock = compat_bus_lock;
if (chip->bus_sync_unlock)

4
kernel/irq/manage.c
View File

@ -440,8 +440,8 @@ void enable_irq(unsigned int irq)
if (!desc)
return;
if (WARN(!desc->irq_data.chip || !desc->irq_data.chip->irq_enable,
KERN_ERR "enable_irq before setup/request_irq: irq %u\n", irq))
if (WARN(!desc->irq_data.chip,
KERN_ERR "enable_irq before setup/request_irq: irq %u\n", irq))
return;
chip_bus_lock(desc);