[patch 04/10] genirq/msi: Prepare MSI domain alloc/free for range irq allocation

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

Make the iterators in the allocation and free functions range based.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 kernel/irq/msi.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -877,6 +877,7 @@ int __msi_domain_alloc_irqs(struct irq_d
        msi_alloc_info_t arg = { };
        unsigned int vflags = 0;
        struct msi_desc *desc;
+       unsigned long idx;
        int allocated = 0;
        int i, ret, virq;
 
@@ -906,7 +907,10 @@ int __msi_domain_alloc_irqs(struct irq_d
                        vflags |= VIRQ_NOMASK_QUIRK;
        }
 
-       msi_for_each_desc(desc, dev, MSI_DESC_NOTASSOCIATED) {
+       xa_for_each_range(&dev->msi.data->store, idx, desc, range->first, 
range->last) {
+               if (!msi_desc_match(desc, MSI_DESC_NOTASSOCIATED))
+                       continue;
+
                ops->set_desc(&arg, desc);
 
                virq = __irq_domain_alloc_irqs(domain, -1, desc->nvec_used,
@@ -999,10 +1003,14 @@ void __msi_domain_free_irqs(struct irq_d
        struct msi_domain_info *info = domain->host_data;
        struct irq_data *irqd;
        struct msi_desc *desc;
+       unsigned long idx;
        int i;
 
        /* Only handle MSI entries which have an interrupt associated */
-       msi_for_each_desc(desc, dev, MSI_DESC_ASSOCIATED) {
+       xa_for_each_range(&dev->msi.data->store, idx, desc, range->first, 
range->last) {
+               if (!msi_desc_match(desc, MSI_DESC_ASSOCIATED))
+                       continue;
+
                /* Make sure all interrupts are deactivated */
                for (i = 0; i < desc->nvec_used; i++) {
                        irqd = irq_domain_get_irq_data(domain, desc->irq + i);