[patch 08/19] genirq; Provide compat handling for chip->mask_ack()

Thomas Gleixner
2010-09-27T12:45:54Z

[-- Attachment #1: genirq-wrap-chip-mask-ack.patch --]
[-- Type: text/plain, Size: 2277 bytes --]

Wrap the old chip function mask_ack() until the migration is complete
and the old chip functions are removed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/irq/chip.c | 20 ++++++++++++++++++--
kernel/irq/internals.h | 17 +++++++++++------
kernel/irq/manage.c | 22 +++++++++++-----------
3 files changed, 40 insertions(+), 19 deletions(-)
Index: linux-2.6-tip/kernel/irq/chip.c
===================================================================
--- linux-2.6-tip.orig/kernel/irq/chip.c
+++ linux-2.6-tip/kernel/irq/chip.c
@@ -343,6 +343,11 @@ static void compat_irq_ack(struct irq_da
irq_data_to_desc(data)->chip->ack(data->irq);
}

+static void compat_irq_mask_ack(struct irq_data *data)
+{
+ irq_data_to_desc(data)->chip->mask_ack(data->irq);
+}
+
static void compat_bus_lock(struct irq_data *data)
{
irq_data_to_desc(data)->chip->bus_lock(data->irq);
@@ -386,12 +391,14 @@ void irq_chip_set_defaults(struct irq_ch
chip->irq_unmask = compat_irq_unmask;
if (chip->ack)
chip->irq_ack = compat_irq_ack;
+ if (chip->mask_ack)
+ chip->irq_mask_ack = compat_irq_mask_ack;
}

-static inline void mask_ack_irq(struct irq_desc *desc, int irq)
+static inline void mask_ack_irq(struct irq_desc *desc)
{
- if (desc->chip->mask_ack)
- desc->chip->mask_ack(irq);
+ if (desc->chip->irq_mask_ack)
+ desc->chip->irq_mask_ack(&desc->irq_data);
else {
desc->chip->irq_mask(&desc->irq_data);
if (desc->chip->irq_ack)
@@ -514,7 +521,7 @@ handle_level_irq(unsigned int irq, struc
irqreturn_t action_ret;

raw_spin_lock(&desc->lock);
- mask_ack_irq(desc, irq);
+ mask_ack_irq(desc);

if (unlikely(desc->status & IRQ_INPROGRESS))
goto out_unlock;
@@ -628,7 +635,7 @@ handle_edge_irq(unsigned int irq, struct
if (unlikely((desc->status & (IRQ_INPROGRESS | IRQ_DISABLED)) ||
!desc->action)) {
desc->status |= (IRQ_PENDING | IRQ_MASKED);
- mask_ack_irq(desc, irq);
+ mask_ack_irq(desc);
goto out_unlock;
}
kstat_incr_irqs_this_cpu(irq, desc);
@@ -733,7 +740,7 @@ __set_irq_handler(unsigned int irq, irq_
/* Uninstall? */
if (handle == handle_bad_irq) {
if (desc->chip != &no_irq_chip)
- mask_ack_irq(desc, irq);
+ mask_ack_irq(desc);
desc->status |= IRQ_DISABLED;
desc->depth = 1;
}