genirq: Move field 'msi_desc' from irq_data into irq_common_data

MSI descriptors are per-irq instead of per irqchip, so move it into struct irq_common_data. Signed-off-by: Jiang Liu <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: Tony Luck <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Jason Cooper <[email protected]> Cc: Kevin Cernekee <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Marc Zyngier <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
mig · Sep 16, 2015 · b237721 · b237721
1 parent 9df872f
commit b237721
Show file tree

Hide file tree

Showing 4 changed files with 7 additions and 7 deletions.
diff --git a/include/linux/irq.h b/include/linux/irq.h
@@ -132,13 +132,15 @@ struct irq_domain;
  * @node:		node index useful for balancing
  * @handler_data:	per-IRQ data for the irq_chip methods
  * @affinity:		IRQ affinity on SMP
+ * @msi_desc:		MSI descriptor
  */
 struct irq_common_data {
 	unsigned int		state_use_accessors;
 #ifdef CONFIG_NUMA
 	unsigned int		node;
 #endif
 	void			*handler_data;
+	struct msi_desc		*msi_desc;
 	cpumask_var_t		affinity;
 };
 
@@ -155,7 +157,6 @@ struct irq_common_data {
  *			irq_domain
  * @chip_data:		platform-specific per-chip private data for the chip
  *			methods, to allow shared chip implementations
- * @msi_desc:		MSI descriptor
  */
 struct irq_data {
 	u32			mask;
@@ -168,7 +169,6 @@ struct irq_data {
 	struct irq_data		*parent_data;
 #endif
 	void			*chip_data;
-	struct msi_desc		*msi_desc;
 };
 
 /*
@@ -652,12 +652,12 @@ static inline void *irq_data_get_irq_handler_data(struct irq_data *d)
 static inline struct msi_desc *irq_get_msi_desc(unsigned int irq)
 {
 	struct irq_data *d = irq_get_irq_data(irq);
-	return d ? d->msi_desc : NULL;
+	return d ? d->common->msi_desc : NULL;
 }
 
 static inline struct msi_desc *irq_data_get_msi_desc(struct irq_data *d)
 {
-	return d->msi_desc;
+	return d->common->msi_desc;
 }
 
 static inline u32 irq_get_trigger_type(unsigned int irq)

diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
@@ -128,7 +128,7 @@ static inline void *irq_desc_get_handler_data(struct irq_desc *desc)
 
 static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
 {
-	return desc->irq_data.msi_desc;
+	return desc->irq_common_data.msi_desc;
 }
 
 /*

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
@@ -105,7 +105,7 @@ int irq_set_msi_desc_off(unsigned int irq_base, unsigned int irq_offset,
 
 	if (!desc)
 		return -EINVAL;
-	desc->irq_data.msi_desc = entry;
+	desc->irq_common_data.msi_desc = entry;
 	if (entry && !irq_offset)
 		entry->irq = irq_base;
 	irq_put_desc_unlock(desc, flags);

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
@@ -74,12 +74,12 @@ 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_common_data.msi_desc = 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.msi_desc = NULL;
 	irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS);
 	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
 	desc->handle_irq = handle_bad_irq;
-Original file line number
+Diff line change
@@ Expand Up @@
     static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
     {
-    	return desc->irq_data.msi_desc;
+    	return desc->irq_common_data.msi_desc;
     }
     /*
@@ Expand Down @@