Remove duplicated members in iosapic_rte_info

Remove duplicated members in iosapic_rte_info in iosapic.c. This patch has no functional changes.

---
 arch/ia64/kernel/iosapic.c |   60 ++++++++++++++++++---------------------------
 1 files changed, 24 insertions(+), 36 deletions(-)

Index: linux-2.6.22-rc6-gk2/arch/ia64/kernel/iosapic.c
=================================--- linux-2.6.22-rc6-gk2.orig/arch/ia64/kernel/iosapic.c 2007-06-28 16:37:18.000000000 +0900
+++ linux-2.6.22-rc6-gk2/arch/ia64/kernel/iosapic.c 2007-06-28 16:37:29.000000000 +0900
@@ -117,16 +117,22 @@ static DEFINE_SPINLOCK(iosapic_lock);
* These tables map IA-64 vectors to the IOSAPIC pin that generates this
* vector.
*/
+static struct iosapic {
+ char __iomem *addr; /* base address of IOSAPIC */
+ unsigned int gsi_base; /* GSI base */
+ unsigned short num_rte; /* # of RTEs on this IOSAPIC */
+ int rtes_inuse; /* # of RTEs in use on this IOSAPIC */
+#ifdef CONFIG_NUMA
+ unsigned short node; /* numa node association via pxm */
+#endif
+} iosapic_lists[NR_IOSAPICS];

struct iosapic_rte_info {
- struct list_head rte_list; /* node in list of RTEs sharing the
- * same vector */
- char __iomem *addr; /* base address of IOSAPIC */
- unsigned int gsi_base; /* first GSI assigned to this
- * IOSAPIC */
+ struct list_head rte_list; /* RTEs sharing the same vector */
char rte_index; /* IOSAPIC RTE index */
int refcnt; /* reference counter */
unsigned int flags; /* flags */
+ struct iosapic *iosapic;
} ____cacheline_aligned;

static struct iosapic_intr_info {
@@ -142,17 +148,6 @@ static struct iosapic_intr_info {
unsigned char trigger : 1; /* trigger mode (see iosapic.h) */
} iosapic_intr_info[IA64_NUM_VECTORS];

-static struct iosapic {
- char __iomem *addr; /* base address of IOSAPIC */
- unsigned int gsi_base; /* first GSI assigned to this
- * IOSAPIC */
- unsigned short num_rte; /* # of RTEs on this IOSAPIC */
- int rtes_inuse; /* # of RTEs in use on this IOSAPIC */
-#ifdef CONFIG_NUMA
- unsigned short node; /* numa node association via pxm */
-#endif
-} iosapic_lists[NR_IOSAPICS];
-
static unsigned char pcat_compat __devinitdata; /* 8259 compatibility flag */

static int iosapic_kmalloc_ok;
@@ -184,7 +179,7 @@ _gsi_to_vector (unsigned int gsi)
for (info = iosapic_intr_info; info <
iosapic_intr_info + IA64_NUM_VECTORS; ++info)
list_for_each_entry(rte, &info->rtes, rte_list)
- if (rte->gsi_base + rte->rte_index = gsi)
+ if (rte->iosapic->gsi_base + rte->rte_index = gsi)
return info - iosapic_intr_info;
return -1;
}
@@ -221,7 +216,7 @@ static struct iosapic_rte_info *gsi_vect
struct iosapic_rte_info *rte;

list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
- if (rte->gsi_base + rte->rte_index = gsi)
+ if (rte->iosapic->gsi_base + rte->rte_index = gsi)
return rte;
return NULL;
}
@@ -243,7 +238,7 @@ set_rte (unsigned int gsi, unsigned int
return; /* not an IOSAPIC interrupt */

rte_index = rte->rte_index;
- addr = rte->addr;
+ addr = rte->iosapic->addr;
pol = iosapic_intr_info[vector].polarity;
trigger = iosapic_intr_info[vector].trigger;
dmode = iosapic_intr_info[vector].dmode;
@@ -297,10 +292,10 @@ kexec_disable_iosapic(void)
iosapic_intr_info + IA64_NUM_VECTORS; ++info, ++vec) {
list_for_each_entry(rte, &info->rtes,
rte_list) {
- iosapic_write(rte->addr,
+ iosapic_write(rte->iosapic->addr,
IOSAPIC_RTE_LOW(rte->rte_index), IOSAPIC_MASK|vec);
- iosapic_eoi(rte->addr, vec);
+ iosapic_eoi(rte->iosapic->addr, vec);
}
}
}
@@ -323,7 +318,7 @@ mask_irq (unsigned int irq)
/* set only the mask bit */
low32 = iosapic_intr_info[vec].low32 |= IOSAPIC_MASK; list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
- addr = rte->addr;
+ addr = rte->iosapic->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
}
@@ -346,7 +341,7 @@ unmask_irq (unsigned int irq)
spin_lock_irqsave(&iosapic_lock, flags);
low32 = iosapic_intr_info[vec].low32 &= ~IOSAPIC_MASK; list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
- addr = rte->addr;
+ addr = rte->iosapic->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
}
@@ -394,7 +389,7 @@ iosapic_set_affinity (unsigned int irq,
iosapic_intr_info[vec].low32 = low32; iosapic_intr_info[vec].dest = dest; list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list) {
- addr = rte->addr;
+ addr = rte->iosapic->addr;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index), high32); iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
@@ -422,7 +417,7 @@ iosapic_end_level_irq (unsigned int irq)

move_native_irq(irq);
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
- iosapic_eoi(rte->addr, vec);
+ iosapic_eoi(rte->iosapic->addr, vec);
}

#define iosapic_shutdown_level_irq mask_irq
@@ -614,10 +609,7 @@ register_intr (unsigned int gsi, int vec
{
irq_desc_t *idesc;
struct hw_interrupt_type *irq_type;
- int rte_index;
int index;
- unsigned long gsi_base;
- void __iomem *iosapic_address;
struct iosapic_rte_info *rte;

index = find_iosapic(gsi);
@@ -627,9 +619,6 @@ register_intr (unsigned int gsi, int vec
return -ENODEV;
}

- iosapic_address = iosapic_lists[index].addr;
- gsi_base = iosapic_lists[index].gsi_base;
-
rte = gsi_vector_to_rte(gsi, vector);
if (!rte) {
rte = iosapic_alloc_rte();
@@ -639,10 +628,8 @@ register_intr (unsigned int gsi, int vec
return -ENOMEM;
}

- rte_index = gsi - gsi_base;
- rte->rte_index = rte_index;
- rte->addr = iosapic_address;
- rte->gsi_base = gsi_base;
+ rte->iosapic = &iosapic_lists[index];
+ rte->rte_index = gsi - rte->iosapic->gsi_base;
rte->refcnt++;
list_add_tail(&rte->rte_list, &iosapic_intr_info[vector].rtes); iosapic_intr_info[vector].count++;
@@ -877,7 +864,8 @@ iosapic_unregister_intr (unsigned int gs

/* Mask the interrupt */
low32 = iosapic_intr_info[vector].low32 | IOSAPIC_MASK;
- iosapic_write(rte->addr, IOSAPIC_RTE_LOW(rte->rte_index), low32);
+ iosapic_write(rte->iosapic->addr,
+ IOSAPIC_RTE_LOW(rte->rte_index), low32);

/* Remove the rte entry from the list */
list_del(&rte->rte_list);