[SPARC64]: virt_irq --> bucket mapping no longer necessary

We used to need this to compute virt_irq --> ino, but that
is no longer necessary.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 12 deletions

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 2be6bcbe50ca..695b9e40cd80 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -122,19 +122,16 @@ static void bucket_set_virt_irq(unsigned long bucket_pa,
                                "i" (ASI_PHYS_USE_EC));
 }
 
-#define __irq(bucket) ((unsigned long)(bucket))
-
 #define irq_work_pa(__cpu)      &(trap_block[(__cpu)].irq_worklist_pa)
 
 static struct {
-        unsigned long irq;
         unsigned int dev_handle;
         unsigned int dev_ino;
+        unsigned int in_use;
 } virt_to_real_irq_table[NR_IRQS];
 static DEFINE_SPINLOCK(virt_irq_alloc_lock);
 
-unsigned char virt_irq_alloc(unsigned long real_irq,
-                             unsigned int dev_handle,
+unsigned char virt_irq_alloc(unsigned int dev_handle,
                              unsigned int dev_ino)
 {
         unsigned long flags;
@@ -145,16 +142,16 @@ unsigned char virt_irq_alloc(unsigned long real_irq,
         spin_lock_irqsave(&virt_irq_alloc_lock, flags);
 
         for (ent = 1; ent < NR_IRQS; ent++) {
-                if (!virt_to_real_irq_table[ent].irq)
+                if (!virt_to_real_irq_table[ent].in_use)
                         break;
         }
         if (ent >= NR_IRQS) {
                 printk(KERN_ERR "IRQ: Out of virtual IRQs.\n");
                 ent = 0;
         } else {
-                virt_to_real_irq_table[ent].irq = real_irq;
                 virt_to_real_irq_table[ent].dev_handle = dev_handle;
                 virt_to_real_irq_table[ent].dev_ino = dev_ino;
+                virt_to_real_irq_table[ent].in_use = 1;
         }
 
         spin_unlock_irqrestore(&virt_irq_alloc_lock, flags);
@@ -172,7 +169,7 @@ void virt_irq_free(unsigned int virt_irq)
 
         spin_lock_irqsave(&virt_irq_alloc_lock, flags);
 
-        virt_to_real_irq_table[virt_irq].irq = 0;
+        virt_to_real_irq_table[virt_irq].in_use = 0;
 
         spin_unlock_irqrestore(&virt_irq_alloc_lock, flags);
 }
@@ -583,7 +580,7 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
         bucket = &ivector_table[ino];
         virt_irq = bucket_get_virt_irq(__pa(bucket));
         if (!virt_irq) {
-                virt_irq = virt_irq_alloc(__irq(bucket), 0, ino);
+                virt_irq = virt_irq_alloc(0, ino);
                 bucket_set_virt_irq(__pa(bucket), virt_irq);
                 set_irq_chip(virt_irq, &sun4u_irq);
         }
@@ -618,7 +615,7 @@ static unsigned int sun4v_build_common(unsigned long sysino,
         bucket = &ivector_table[sysino];
         virt_irq = bucket_get_virt_irq(__pa(bucket));
         if (!virt_irq) {
-                virt_irq = virt_irq_alloc(__irq(bucket), 0, sysino);
+                virt_irq = virt_irq_alloc(0, sysino);
                 bucket_set_virt_irq(__pa(bucket), virt_irq);
                 set_irq_chip(virt_irq, chip);
         }
@@ -666,7 +663,7 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
                              ((unsigned long) bucket +
                               sizeof(struct ino_bucket)));
 
-        virt_irq = virt_irq_alloc(__irq(bucket), devhandle, devino);
+        virt_irq = virt_irq_alloc(devhandle, devino);
         bucket_set_virt_irq(__pa(bucket), virt_irq);
         set_irq_chip(virt_irq, &sun4v_virq);
 
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c
index e4920cf960e7..31a165fd3e48 100644
--- a/arch/sparc64/kernel/pci_msi.c
+++ b/arch/sparc64/kernel/pci_msi.c
@@ -123,7 +123,7 @@ int sparc64_setup_msi_irq(unsigned int *virt_irq_p,
         int msi, err;
         u32 msiqid;
 
-        *virt_irq_p = virt_irq_alloc(~0, 0, 0);
+        *virt_irq_p = virt_irq_alloc(0, 0);
         err = -ENOMEM;
         if (!*virt_irq_p)
                 goto out_err;