1 files changed, 23 insertions, 11 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 831ddcdc5597..690b238a44d5 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -259,25 +259,35 @@ struct irq_affinity_notify {
 	void (*release)(struct kref *ref);
 };
 
+#define	IRQ_AFFINITY_MAX_SETS  4
+
 /**
  * struct irq_affinity - Description for automatic irq affinity assignements
  * @pre_vectors:	Don't apply affinity to @pre_vectors at beginning of
  *			the MSI(-X) vector space
  * @post_vectors:	Don't apply affinity to @post_vectors at end of
  *			the MSI(-X) vector space
- * @nr_sets:		Length of passed in *sets array
- * @sets:		Number of affinitized sets
+ * @nr_sets:		The number of interrupt sets for which affinity
+ *			spreading is required
+ * @set_size:		Array holding the size of each interrupt set
+ * @calc_sets:		Callback for calculating the number and size
+ *			of interrupt sets
+ * @priv:		Private data for usage by @calc_sets, usually a
+ *			pointer to driver/device specific data.
  */
 struct irq_affinity {
-	int	pre_vectors;
-	int	post_vectors;
-	int	nr_sets;
-	int	*sets;
+	unsigned int	pre_vectors;
+	unsigned int	post_vectors;
+	unsigned int	nr_sets;
+	unsigned int	set_size[IRQ_AFFINITY_MAX_SETS];
+	void		(*calc_sets)(struct irq_affinity *, unsigned int nvecs);
+	void		*priv;
 };
 
 /**
  * struct irq_affinity_desc - Interrupt affinity descriptor
  * @mask:	cpumask to hold the affinity assignment
+ * @is_managed: 1 if the interrupt is managed internally
  */
 struct irq_affinity_desc {
 	struct cpumask	mask;
@@ -331,9 +341,10 @@ extern int
 irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify);
 
 struct irq_affinity_desc *
-irq_create_affinity_masks(int nvec, const struct irq_affinity *affd);
+irq_create_affinity_masks(unsigned int nvec, struct irq_affinity *affd);
 
-int irq_calc_affinity_vectors(int minvec, int maxvec, const struct irq_affinity *affd);
+unsigned int irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
+				       const struct irq_affinity *affd);
 
 #else /* CONFIG_SMP */
 
@@ -367,13 +378,14 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
 }
 
 static inline struct irq_affinity_desc *
-irq_create_affinity_masks(int nvec, const struct irq_affinity *affd)
+irq_create_affinity_masks(unsigned int nvec, struct irq_affinity *affd)
 {
 	return NULL;
 }
 
-static inline int
-irq_calc_affinity_vectors(int minvec, int maxvec, const struct irq_affinity *affd)
+static inline unsigned int
+irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
+			  const struct irq_affinity *affd)
 {
 	return maxvec;
 }