genirq: remove sparse irq code

This code is not ready, but we need to rip it out instead of rebasing
as we would lose the APIC/IO_APIC unification otherwise.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 75 deletions

diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 2dcf973890c4..0f43b265eee6 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -19,78 +19,6 @@ struct irq_2_iommu {
         u8  irte_mask;
 };
 
-#ifdef CONFIG_HAVE_SPARSE_IRQ
-static struct irq_2_iommu *irq_2_iommuX;
-/* fill one page ? */
-static int nr_irq_2_iommu = 0x100;
-static int irq_2_iommu_index;
-DEFINE_DYN_ARRAY(irq_2_iommuX, sizeof(struct irq_2_iommu), nr_irq_2_iommu, PAGE_SIZE, NULL);
-
-extern void *__alloc_bootmem_nopanic(unsigned long size,
-                                     unsigned long align,
-                                     unsigned long goal);
-
-static struct irq_2_iommu *get_one_free_irq_2_iommu(int not_used)
-{
-        struct irq_2_iommu *iommu;
-        unsigned long total_bytes;
-
-        if (irq_2_iommu_index >= nr_irq_2_iommu) {
-                /*
-                 *  we run out of pre-allocate ones, allocate more
-                 */
-                printk(KERN_DEBUG "try to get more irq_2_iommu %d\n", nr_irq_2_iommu);
-
-                total_bytes = sizeof(struct irq_2_iommu)*nr_irq_2_iommu;
-
-                if (after_bootmem)
-                        iommu = kzalloc(total_bytes, GFP_ATOMIC);
-                else
-                        iommu = __alloc_bootmem_nopanic(total_bytes, PAGE_SIZE, 0);
-
-                if (!iommu)
-                        panic("can not get more irq_2_iommu\n");
-
-                irq_2_iommuX = iommu;
-                irq_2_iommu_index = 0;
-        }
-
-        iommu = &irq_2_iommuX[irq_2_iommu_index];
-        irq_2_iommu_index++;
-        return iommu;
-}
-
-static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
-{
-        struct irq_desc *desc;
-
-        desc = irq_to_desc(irq);
-
-        BUG_ON(!desc);
-
-        return desc->irq_2_iommu;
-}
-
-static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
-{
-        struct irq_desc *desc;
-        struct irq_2_iommu *irq_iommu;
-
-        /*
-         * alloc irq desc if not allocated already.
-         */
-        desc = irq_to_desc_alloc(irq);
-
-        irq_iommu = desc->irq_2_iommu;
-
-        if (!irq_iommu)
-                desc->irq_2_iommu = get_one_free_irq_2_iommu(irq);
-
-        return desc->irq_2_iommu;
-}
-
-#else /* !CONFIG_HAVE_SPARSE_IRQ */
-
 #ifdef CONFIG_HAVE_DYN_ARRAY
 static struct irq_2_iommu *irq_2_iommuX;
 DEFINE_DYN_ARRAY(irq_2_iommuX, sizeof(struct irq_2_iommu), nr_irqs, PAGE_SIZE, NULL);
@@ -109,7 +37,6 @@ static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
 {
         return irq_2_iommu(irq);
 }
-#endif
 
 static DEFINE_SPINLOCK(irq_2_ir_lock);
 
@@ -166,11 +93,9 @@ int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
         if (!count)
                 return -1;
 
-#ifndef CONFIG_HAVE_SPARSE_IRQ
         /* protect irq_2_iommu_alloc later */
         if (irq >= nr_irqs)
                 return -1;
-#endif
 
         /*
          * start the IRTE search from index 0.