[tip:irq/core] genirq: Provide compat handling for chip->mask_ack()

tip-bot for Thomas Gleixner
2010-10-04T20:32:34Z

Commit-ID: 9205e31d1af0f725e71bbae10d199c6b9e8d6dd8
Gitweb: http://git.kernel.org/tip/9205e31d1af0f725e71bbae10d199c6b9e8d6dd8
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Mon, 27 Sep 2010 12:44:50 +0000
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 4 Oct 2010 12:43:40 +0200

genirq: Provide compat handling for chip->mask_ack()

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>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20100927121842.240806983@linutronix.de>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
---
kernel/irq/chip.c | 19 +++++++++++++------
1 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 864c3ab..09c1a44 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -340,6 +340,11 @@ static void compat_irq_ack(struct irq_data *data)
data->chip->ack(data->irq);
}

+static void compat_irq_mask_ack(struct irq_data *data)
+{
+ data->chip->mask_ack(data->irq);
+}
+
static void compat_bus_lock(struct irq_data *data)
{
data->chip->bus_lock(data->irq);
@@ -383,12 +388,14 @@ void irq_chip_set_defaults(struct irq_chip *chip)
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->irq_data.chip->mask_ack)
- desc->irq_data.chip->mask_ack(irq);
+ if (desc->irq_data.chip->irq_mask_ack)
+ desc->irq_data.chip->irq_mask_ack(&desc->irq_data);
else {
desc->irq_data.chip->irq_mask(&desc->irq_data);
if (desc->irq_data.chip->irq_ack)
@@ -511,7 +518,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
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;
@@ -625,7 +632,7 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
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);
@@ -729,7 +736,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
/* Uninstall? */
if (handle == handle_bad_irq) {
if (desc->irq_data.chip != &no_irq_chip)
- mask_ack_irq(desc, irq);
+ mask_ack_irq(desc);
desc->status |= IRQ_DISABLED;
desc->depth = 1;
}