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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-10-04 16:51:27 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:53:41 +0200 |
| commit | a8ef54aeb4308d3730ff31807c495390b98de16a (patch) | |
| tree | 09e6af4cb4af33edf141585f539be6a6e787b9ba /drivers | |
| parent | 0e1e367aab873becf3e21d9b0cf46d11154ebc3f (diff) | |
| download | linux-a8ef54aeb4308d3730ff31807c495390b98de16a.tar.gz linux-a8ef54aeb4308d3730ff31807c495390b98de16a.tar.bz2 linux-a8ef54aeb4308d3730ff31807c495390b98de16a.zip | |
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')
| -rw-r--r-- | drivers/pci/intr_remapping.c | 39 |
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) |