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authorThomas Gleixner <tglx@linutronix.de>2010-10-04 18:51:27 +0400
committerThomas Gleixner <tglx@linutronix.de>2010-10-12 18:53:41 +0400
commita8ef54aeb4308d3730ff31807c495390b98de16a (patch)
tree09e6af4cb4af33edf141585f539be6a6e787b9ba /drivers/pci
parent0e1e367aab873becf3e21d9b0cf46d11154ebc3f (diff)
downloadlinux-a8ef54aeb4308d3730ff31807c495390b98de16a.tar.xz
pci: intr_remap: Use irq_data
No need to dereference irq_desc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/intr_remapping.c39
1 files changed, 8 insertions, 31 deletions
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 87ec390e10df..cb6252988546 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -54,45 +54,22 @@ struct irq_2_iommu {
};
#ifdef CONFIG_GENERIC_HARDIRQS
-static struct irq_2_iommu *get_one_free_irq_2_iommu(int node)
-{
- struct irq_2_iommu *iommu;
-
- iommu = kzalloc_node(sizeof(*iommu), GFP_ATOMIC, node);
- printk(KERN_DEBUG "alloc irq_2_iommu on node %d\n", node);
-
- return iommu;
-}
-
static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
{
- struct irq_desc *desc;
-
- desc = irq_to_desc(irq);
-
- if (WARN_ON_ONCE(!desc))
- return NULL;
-
- return desc->irq_2_iommu;
+ return get_irq_iommu(irq);
}
static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
{
- struct irq_desc *desc;
- struct irq_2_iommu *irq_iommu;
+ struct irq_data *data = irq_get_irq_data(irq);
- desc = irq_to_desc(irq);
- if (!desc) {
- printk(KERN_INFO "can not get irq_desc for %d\n", irq);
- return NULL;
- }
-
- irq_iommu = desc->irq_2_iommu;
-
- if (!irq_iommu)
- desc->irq_2_iommu = get_one_free_irq_2_iommu(irq_node(irq));
+ if (WARN_ONCE(data->irq_2_iommu,
+ KERN_DEBUG "irq_2_iommu!=NULL irq %u\n", irq))
+ return data->irq_2_iommu;
- return desc->irq_2_iommu;
+ data->irq_2_iommu = kzalloc_node(sizeof(*data->irq_2_iommu),
+ GFP_ATOMIC, data->node);
+ return data->irq_2_iommu;
}
static void irq_2_iommu_free(unsigned int irq)