Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu
and x86/uv.

The sparseirq branch is just preliminary groundwork: no sparse IRQs are
actually implemented by this tree anymore - just the new APIs are added
while keeping the old way intact as well (the new APIs map 1:1 to
irq_desc[]).  The 'real' sparse IRQ support will then be a relatively
small patch ontop of this - with a v2.6.29 merge target.

* 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits)
  genirq: improve include files
  intr_remapping: fix typo
  io_apic: make irq_mis_count available on 64-bit too
  genirq: fix name space collisions of nr_irqs in arch/*
  genirq: fix name space collision of nr_irqs in autoprobe.c
  genirq: use iterators for irq_desc loops
  proc: fixup irq iterator
  genirq: add reverse iterator for irq_desc
  x86: move ack_bad_irq() to irq.c
  x86: unify show_interrupts() and proc helpers
  x86: cleanup show_interrupts
  genirq: cleanup the sparseirq modifications
  genirq: remove artifacts from sparseirq removal
  genirq: revert dynarray
  genirq: remove irq_to_desc_alloc
  genirq: remove sparse irq code
  genirq: use inline function for irq_to_desc
  genirq: consolidate nr_irqs and for_each_irq_desc()
  x86: remove sparse irq from Kconfig
  genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n
  ...

3 files changed, 11 insertions, 5 deletions

diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index a0ffb8ebfe00..9e1140f085fd 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -273,7 +273,7 @@ static int __init at91_cf_probe(struct platform_device *pdev)
                         goto fail0d;
                 cf->socket.pci_irq = board->irq_pin;
         } else
-                cf->socket.pci_irq = NR_IRQS + 1;
+                cf->socket.pci_irq = nr_irqs + 1;
 
         /* pcmcia layer only remaps "real" memory not iospace */
         cf->socket.io_offset = (unsigned long)
diff --git a/drivers/pcmcia/hd64465_ss.c b/drivers/pcmcia/hd64465_ss.c
index 117dc12ab438..9ef69cdb3183 100644
--- a/drivers/pcmcia/hd64465_ss.c
+++ b/drivers/pcmcia/hd64465_ss.c
@@ -233,15 +233,18 @@ static struct hw_interrupt_type hd64465_ss_irq_type = {
  */
 static void hs_map_irq(hs_socket_t *sp, unsigned int irq)
 {
+        struct irq_desc *desc;
+
         DPRINTK("hs_map_irq(sock=%d irq=%d)\n", sp->number, irq);
         
         if (irq >= HS_NUM_MAPPED_IRQS)
             return;
 
+        desc = irq_to_desc(irq);
         hs_mapped_irq[irq].sock = sp;
         /* insert ourselves as the irq controller */
-        hs_mapped_irq[irq].old_handler = irq_desc[irq].chip;
-        irq_desc[irq].chip = &hd64465_ss_irq_type;
+        hs_mapped_irq[irq].old_handler = desc->chip;
+        desc->chip = &hd64465_ss_irq_type;
 }
 
 
@@ -250,13 +253,16 @@ static void hs_map_irq(hs_socket_t *sp, unsigned int irq)
  */
 static void hs_unmap_irq(hs_socket_t *sp, unsigned int irq)
 {
+        struct irq_desc *desc;
+
         DPRINTK("hs_unmap_irq(sock=%d irq=%d)\n", sp->number, irq);
         
         if (irq >= HS_NUM_MAPPED_IRQS)
             return;
                 
+        desc = irq_to_desc(irq);
         /* restore the original irq controller */
-        irq_desc[irq].chip = hs_mapped_irq[irq].old_handler;
+        desc->chip = hs_mapped_irq[irq].old_handler;
 }
 
 /*============================================================*/
diff --git a/drivers/pcmcia/vrc4171_card.c b/drivers/pcmcia/vrc4171_card.c
index eee2f1cb213c..b2c412419059 100644
--- a/drivers/pcmcia/vrc4171_card.c
+++ b/drivers/pcmcia/vrc4171_card.c
@@ -639,7 +639,7 @@ static int __devinit vrc4171_card_setup(char *options)
                 int irq;
                 options += 4;
                 irq = simple_strtoul(options, &options, 0);
-                if (irq >= 0 && irq < NR_IRQS)
+                if (irq >= 0 && irq < nr_irqs)
                         vrc4171_irq = irq;
 
                 if (*options != ',')