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genirq: Provide compat handling for chip->disable()/shutdown()

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Wrap the old chip functions disable() and shutdown() until the
migration is complete and the old chip functions are removed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20100927121842.532070631@linutronix.de>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner
2010-09-27 12:45:02 +00:00
parent c5f756344c
commit bc310dda41
5 changed files with 35 additions and 22 deletions
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37
kernel/irq/chip.c
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@@ -298,7 +298,7 @@ static void default_enable(struct irq_data *data)
/*
* default disable function
*/
static void default_disable(unsigned int irq)
static void default_disable(struct irq_data *data)
{
}
@@ -316,9 +316,9 @@ static unsigned int default_startup(unsigned int irq)
/*
* default shutdown function
*/
static void default_shutdown(unsigned int irq)
static void default_shutdown(struct irq_data *data)
{
struct irq_desc *desc = irq_to_desc(irq);
struct irq_desc *desc = irq_data_to_desc(data);
desc->irq_data.chip->irq_mask(&desc->irq_data);
desc->status |= IRQ_MASKED;
@@ -355,6 +355,16 @@ static void compat_irq_enable(struct irq_data *data)
data->chip->enable(data->irq);
}
static void compat_irq_disable(struct irq_data *data)
{
data->chip->disable(data->irq);
}
static void compat_irq_shutdown(struct irq_data *data)
{
data->chip->shutdown(data->irq);
}
static void compat_bus_lock(struct irq_data *data)
{
data->chip->bus_lock(data->irq);
@@ -376,28 +386,35 @@ void irq_chip_set_defaults(struct irq_chip *chip)
*/
if (chip->enable)
chip->irq_enable = compat_irq_enable;
if (chip->disable)
chip->irq_disable = compat_irq_disable;
if (chip->shutdown)
chip->irq_shutdown = compat_irq_shutdown;
/*
* The real defaults
*/
if (!chip->irq_enable)
chip->irq_enable = default_enable;
if (!chip->disable)
chip->disable = default_disable;
if (!chip->irq_disable)
chip->irq_disable = default_disable;
if (!chip->startup)
chip->startup = default_startup;
/*
* We use chip->disable, when the user provided its own. When
* we have default_disable set for chip->disable, then we need
* 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->shutdown)
chip->shutdown = chip->disable != default_disable ?
chip->disable : default_shutdown;
if (!chip->irq_shutdown)
chip->irq_shutdown = chip->irq_disable != default_disable ?
chip->irq_disable : default_shutdown;
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)