[Patch v3 12/36] genirq: Move field 'handler_data' from struct irq_data into struct irq_common_data

[Jiang Liu]

Handler data (handler_data) is per-irq instead of per irqchip, so move
it into struct irq_common_data.

Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
---
 include/linux/irq.h     |    8 ++++----
 include/linux/irqdesc.h |    2 +-
 kernel/irq/chip.c       |    2 +-
 kernel/irq/irqdesc.c    |    3 ++-
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index bcedf9f952d4..68874efe19d3 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -130,12 +130,14 @@ struct irq_domain;
  * @state_use_accessors: status information for irq chip functions.
  *                     Use accessor functions to deal with it
  * @node:              node index useful for balancing
+ * @handler_data:      per-IRQ data for the irq_chip methods
  */
 struct irq_common_data {
        unsigned int            state_use_accessors;
 #ifdef CONFIG_NUMA
        unsigned int            node;
 #endif
+       void                    *handler_data;
 };
 
 /**
@@ -149,7 +151,6 @@ struct irq_common_data {
  *                     between hwirq number and linux irq number.
  * @parent_data:       pointer to parent struct irq_data to support hierarchy
  *                     irq_domain
- * @handler_data:      per-IRQ data for the irq_chip methods
  * @chip_data:         platform-specific per-chip private data for the chip
  *                     methods, to allow shared chip implementations
  * @msi_desc:          MSI descriptor
@@ -169,7 +170,6 @@ struct irq_data {
 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
        struct irq_data         *parent_data;
 #endif
-       void                    *handler_data;
        void                    *chip_data;
        struct msi_desc         *msi_desc;
        cpumask_var_t           affinity;
@@ -617,12 +617,12 @@ static inline void *irq_data_get_irq_chip_data(struct 
irq_data *d)
 static inline void *irq_get_handler_data(unsigned int irq)
 {
        struct irq_data *d = irq_get_irq_data(irq);
-       return d ? d->handler_data : NULL;
+       return d ? d->common->handler_data : NULL;
 }
 
 static inline void *irq_data_get_irq_handler_data(struct irq_data *d)
 {
-       return d->handler_data;
+       return d->common->handler_data;
 }
 
 static inline struct msi_desc *irq_get_msi_desc(unsigned int irq)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index c52d1480f272..d46fd7eb7959 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -120,7 +120,7 @@ static inline void *irq_desc_get_chip_data(struct irq_desc 
*desc)
 
 static inline void *irq_desc_get_handler_data(struct irq_desc *desc)
 {
-       return desc->irq_data.handler_data;
+       return desc->irq_common_data.handler_data;
 }
 
 static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 55016b2151f3..895de2ea4e32 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -83,7 +83,7 @@ int irq_set_handler_data(unsigned int irq, void *data)
 
        if (!desc)
                return -EINVAL;
-       desc->irq_data.handler_data = data;
+       desc->irq_common_data.handler_data = data;
        irq_put_desc_unlock(desc, flags);
        return 0;
 }
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 0c3057e42906..7f881792ad5f 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -72,11 +72,12 @@ static void desc_set_defaults(unsigned int irq, struct 
irq_desc *desc, int node,
 {
        int cpu;
 
+       desc->irq_common_data.handler_data = NULL;
+
        desc->irq_data.common = &desc->irq_common_data;
        desc->irq_data.irq = irq;
        desc->irq_data.chip = &no_irq_chip;
        desc->irq_data.chip_data = NULL;
-       desc->irq_data.handler_data = NULL;
        desc->irq_data.msi_desc = NULL;
        irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
        irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
-- 
1.7.10.4

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