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Subject[patch 02/50] genirq: cleanup: remove irq_descp()
From: Ingo Molnar <mingo@elte.hu>

cleanup: remove irq_descp() - explicit use of irq_desc[] is shorter and
more readable.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/ia64/hp/sim/hpsim_irq.c | 2 +-
arch/ia64/kernel/iosapic.c | 14 +++++++-------
arch/ia64/kernel/irq.c | 2 +-
arch/ia64/kernel/irq_ia64.c | 2 +-
arch/ia64/kernel/mca.c | 2 +-
arch/ia64/kernel/smpboot.c | 2 +-
include/linux/irq.h | 7 -------
kernel/irq/migration.c | 2 +-
8 files changed, 13 insertions(+), 20 deletions(-)
Index: linux-genirq.q/arch/ia64/hp/sim/hpsim_irq.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/hp/sim/hpsim_irq.c
+++ linux-genirq.q/arch/ia64/hp/sim/hpsim_irq.c
@@ -44,7 +44,7 @@ hpsim_irq_init (void)
int i;

for (i = 0; i < NR_IRQS; ++i) {
- idesc = irq_descp(i);
+ idesc = irq_desc + i;
if (idesc->handler == &no_irq_type)
idesc->handler = &irq_type_hp_sim;
}
Index: linux-genirq.q/arch/ia64/kernel/iosapic.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/kernel/iosapic.c
+++ linux-genirq.q/arch/ia64/kernel/iosapic.c
@@ -456,7 +456,7 @@ iosapic_startup_edge_irq (unsigned int i
static void
iosapic_ack_edge_irq (unsigned int irq)
{
- irq_desc_t *idesc = irq_descp(irq);
+ irq_desc_t *idesc = irq_desc + irq;

move_irq(irq);
/*
@@ -659,7 +659,7 @@ register_intr (unsigned int gsi, int vec
else
irq_type = &irq_type_iosapic_level;

- idesc = irq_descp(vector);
+ idesc = irq_desc + vector;
if (idesc->handler != irq_type) {
if (idesc->handler != &no_irq_type)
printk(KERN_WARNING
@@ -793,14 +793,14 @@ again:
return -ENOSPC;
}

- spin_lock_irqsave(&irq_descp(vector)->lock, flags);
+ spin_lock_irqsave(&irq_desc[vector].lock, flags);
spin_lock(&iosapic_lock);
{
if (gsi_to_vector(gsi) > 0) {
if (list_empty(&iosapic_intr_info[vector].rtes))
free_irq_vector(vector);
spin_unlock(&iosapic_lock);
- spin_unlock_irqrestore(&irq_descp(vector)->lock,
+ spin_unlock_irqrestore(&irq_desc[vector].lock,
flags);
goto again;
}
@@ -810,7 +810,7 @@ again:
polarity, trigger);
if (err < 0) {
spin_unlock(&iosapic_lock);
- spin_unlock_irqrestore(&irq_descp(vector)->lock,
+ spin_unlock_irqrestore(&irq_desc[vector].lock,
flags);
return err;
}
@@ -825,7 +825,7 @@ again:
set_rte(gsi, vector, dest, mask);
}
spin_unlock(&iosapic_lock);
- spin_unlock_irqrestore(&irq_descp(vector)->lock, flags);
+ spin_unlock_irqrestore(&irq_desc[vector].lock, flags);

printk(KERN_INFO "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
@@ -860,7 +860,7 @@ iosapic_unregister_intr (unsigned int gs
}
vector = irq_to_vector(irq);

- idesc = irq_descp(irq);
+ idesc = irq_desc + irq;
spin_lock_irqsave(&idesc->lock, flags);
spin_lock(&iosapic_lock);
{
Index: linux-genirq.q/arch/ia64/kernel/irq.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/kernel/irq.c
+++ linux-genirq.q/arch/ia64/kernel/irq.c
@@ -121,7 +121,7 @@ static void migrate_irqs(void)
int irq, new_cpu;

for (irq=0; irq < NR_IRQS; irq++) {
- desc = irq_descp(irq);
+ desc = irq_desc + irq;

/*
* No handling for now.
Index: linux-genirq.q/arch/ia64/kernel/irq_ia64.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/kernel/irq_ia64.c
+++ linux-genirq.q/arch/ia64/kernel/irq_ia64.c
@@ -232,7 +232,7 @@ register_percpu_irq (ia64_vector vec, st

for (irq = 0; irq < NR_IRQS; ++irq)
if (irq_to_vector(irq) == vec) {
- desc = irq_descp(irq);
+ desc = irq_desc + irq;
desc->status |= IRQ_PER_CPU;
desc->handler = &irq_type_ia64_lsapic;
if (action)
Index: linux-genirq.q/arch/ia64/kernel/mca.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/kernel/mca.c
+++ linux-genirq.q/arch/ia64/kernel/mca.c
@@ -1788,7 +1788,7 @@ ia64_mca_late_init(void)
cpe_poll_enabled = 0;
for (irq = 0; irq < NR_IRQS; ++irq)
if (irq_to_vector(irq) == cpe_vector) {
- desc = irq_descp(irq);
+ desc = irq_desc + irq;
desc->status |= IRQ_PER_CPU;
setup_irq(irq, &mca_cpe_irqaction);
ia64_cpe_irq = irq;
Index: linux-genirq.q/arch/ia64/kernel/smpboot.c
===================================================================
--- linux-genirq.q.orig/arch/ia64/kernel/smpboot.c
+++ linux-genirq.q/arch/ia64/kernel/smpboot.c
@@ -677,7 +677,7 @@ int migrate_platform_irqs(unsigned int c
new_cpei_cpu = any_online_cpu(cpu_online_map);
mask = cpumask_of_cpu(new_cpei_cpu);
set_cpei_target_cpu(new_cpei_cpu);
- desc = irq_descp(ia64_cpe_irq);
+ desc = irq_desc + ia64_cpe_irq;
/*
* Switch for now, immediatly, we need to do fake intr
* as other interrupts, but need to study CPEI behaviour with
Index: linux-genirq.q/include/linux/irq.h
===================================================================
--- linux-genirq.q.orig/include/linux/irq.h
+++ linux-genirq.q/include/linux/irq.h
@@ -87,13 +87,6 @@ typedef struct irq_desc {

extern irq_desc_t irq_desc [NR_IRQS];

-/* Return a pointer to the irq descriptor for IRQ. */
-static inline irq_desc_t *
-irq_descp (int irq)
-{
- return irq_desc + irq;
-}
-
#include <asm/hw_irq.h> /* the arch dependent stuff */

extern int setup_irq(unsigned int irq, struct irqaction * new);
Index: linux-genirq.q/kernel/irq/migration.c
===================================================================
--- linux-genirq.q.orig/kernel/irq/migration.c
+++ linux-genirq.q/kernel/irq/migration.c
@@ -15,7 +15,7 @@ void set_pending_irq(unsigned int irq, c
void move_native_irq(int irq)
{
cpumask_t tmp;
- irq_desc_t *desc = irq_descp(irq);
+ irq_desc_t *desc = irq_desc + irq;

if (likely(!desc->move_irq))
return;
-
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