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

Wrap the old chip function 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: <20100927121842.142624725@linutronix.de>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index dbdb59a420932b3b20d73603c31f26afdfd20a55..864c3abdf8f4ec660e403b48fdd70d9e0b03245a 100644 (file)
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -335,6 +335,11 @@ static void compat_irq_unmask(struct irq_data *data)
        data->chip->unmask(data->irq);
 }
 
+static void compat_irq_ack(struct irq_data *data)
+{
+       data->chip->ack(data->irq);
+}
+
 static void compat_bus_lock(struct irq_data *data)
 {
        data->chip->bus_lock(data->irq);
@@ -372,12 +377,12 @@ void irq_chip_set_defaults(struct irq_chip *chip)
                chip->irq_bus_lock = compat_bus_lock;
        if (chip->bus_sync_unlock)
                chip->irq_bus_sync_unlock = compat_bus_sync_unlock;
-
        if (chip->mask)
                chip->irq_mask = compat_irq_mask;
-
        if (chip->unmask)
                chip->irq_unmask = compat_irq_unmask;
+       if (chip->ack)
+               chip->irq_ack = compat_irq_ack;
 }
 
 static inline void mask_ack_irq(struct irq_desc *desc, int irq)
@@ -386,8 +391,8 @@ static inline void mask_ack_irq(struct irq_desc *desc, int irq)
                desc->irq_data.chip->mask_ack(irq);
        else {
                desc->irq_data.chip->irq_mask(&desc->irq_data);
-               if (desc->irq_data.chip->ack)
-                       desc->irq_data.chip->ack(irq);
+               if (desc->irq_data.chip->irq_ack)
+                       desc->irq_data.chip->irq_ack(&desc->irq_data);
        }
        desc->status |= IRQ_MASKED;
 }
@@ -626,8 +631,7 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
        kstat_incr_irqs_this_cpu(irq, desc);
 
        /* Start handling the irq */
-       if (desc->irq_data.chip->ack)
-               desc->irq_data.chip->ack(irq);
+       desc->irq_data.chip->irq_ack(&desc->irq_data);
 
        /* Mark the IRQ currently in progress.*/
        desc->status |= IRQ_INPROGRESS;
@@ -680,8 +684,8 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 
        kstat_incr_irqs_this_cpu(irq, desc);
 
-       if (desc->irq_data.chip->ack)
-               desc->irq_data.chip->ack(irq);
+       if (desc->irq_data.chip->irq_ack)
+               desc->irq_data.chip->irq_ack(&desc->irq_data);
 
        action_ret = handle_IRQ_event(irq, desc->action);
        if (!noirqdebug)

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index f334c8c59dd2e18a91a5bc8f30dc6468cba8ed36..9ba7aece0e4dba40a7a3d808f9d73dae317dd54a 100644 (file)
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -299,14 +299,6 @@ static void ack_bad(struct irq_data *data)
        ack_bad_irq(data->irq);
 }
 
-static void compat_ack_bad(unsigned int irq)
-{
-       struct irq_desc *desc = irq_to_desc(irq);
-
-       print_irq_desc(irq, desc);
-       ack_bad_irq(irq);
-}
-
 /*
  * NOP functions
  */
@@ -338,7 +330,6 @@ struct irq_chip no_irq_chip = {
        .shutdown       = compat_noop,
        .enable         = compat_noop,
        .disable        = compat_noop,
-       .ack            = compat_ack_bad,
        .end            = compat_noop,
 };
 
@@ -359,7 +350,6 @@ struct irq_chip dummy_irq_chip = {
        .shutdown       = compat_noop,
        .enable         = compat_noop,
        .disable        = compat_noop,
-       .ack            = compat_noop,
        .end            = compat_noop,
 };