[MIPS] Eleminate interrupt migration helper use.

> #define hw_interrupt_type       irq_chip
> typedef struct irq_chip         hw_irq_controller;
> #define no_irq_type             no_irq_chip
> typedef struct irq_desc         irq_desc_t;

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index b932330..3cc5a49 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -152,7 +152,7 @@
 
 void vr41xx_enable_piuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + PIU_IRQ;
+	struct irq_desc *desc = irq_desc + PIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -167,7 +167,7 @@
 
 void vr41xx_disable_piuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + PIU_IRQ;
+	struct irq_desc *desc = irq_desc + PIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -182,7 +182,7 @@
 
 void vr41xx_enable_aiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + AIU_IRQ;
+	struct irq_desc *desc = irq_desc + AIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -197,7 +197,7 @@
 
 void vr41xx_disable_aiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + AIU_IRQ;
+	struct irq_desc *desc = irq_desc + AIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -212,7 +212,7 @@
 
 void vr41xx_enable_kiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + KIU_IRQ;
+	struct irq_desc *desc = irq_desc + KIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -227,7 +227,7 @@
 
 void vr41xx_disable_kiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + KIU_IRQ;
+	struct irq_desc *desc = irq_desc + KIU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4111 ||
@@ -242,7 +242,7 @@
 
 void vr41xx_enable_dsiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + DSIU_IRQ;
+	struct irq_desc *desc = irq_desc + DSIU_IRQ;
 	unsigned long flags;
 
 	spin_lock_irqsave(&desc->lock, flags);
@@ -254,7 +254,7 @@
 
 void vr41xx_disable_dsiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + DSIU_IRQ;
+	struct irq_desc *desc = irq_desc + DSIU_IRQ;
 	unsigned long flags;
 
 	spin_lock_irqsave(&desc->lock, flags);
@@ -266,7 +266,7 @@
 
 void vr41xx_enable_firint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + FIR_IRQ;
+	struct irq_desc *desc = irq_desc + FIR_IRQ;
 	unsigned long flags;
 
 	spin_lock_irqsave(&desc->lock, flags);
@@ -278,7 +278,7 @@
 
 void vr41xx_disable_firint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + FIR_IRQ;
+	struct irq_desc *desc = irq_desc + FIR_IRQ;
 	unsigned long flags;
 
 	spin_lock_irqsave(&desc->lock, flags);
@@ -290,7 +290,7 @@
 
 void vr41xx_enable_pciint(void)
 {
-	irq_desc_t *desc = irq_desc + PCI_IRQ;
+	struct irq_desc *desc = irq_desc + PCI_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -306,7 +306,7 @@
 
 void vr41xx_disable_pciint(void)
 {
-	irq_desc_t *desc = irq_desc + PCI_IRQ;
+	struct irq_desc *desc = irq_desc + PCI_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -322,7 +322,7 @@
 
 void vr41xx_enable_scuint(void)
 {
-	irq_desc_t *desc = irq_desc + SCU_IRQ;
+	struct irq_desc *desc = irq_desc + SCU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -338,7 +338,7 @@
 
 void vr41xx_disable_scuint(void)
 {
-	irq_desc_t *desc = irq_desc + SCU_IRQ;
+	struct irq_desc *desc = irq_desc + SCU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -354,7 +354,7 @@
 
 void vr41xx_enable_csiint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + CSI_IRQ;
+	struct irq_desc *desc = irq_desc + CSI_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -370,7 +370,7 @@
 
 void vr41xx_disable_csiint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + CSI_IRQ;
+	struct irq_desc *desc = irq_desc + CSI_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -386,7 +386,7 @@
 
 void vr41xx_enable_bcuint(void)
 {
-	irq_desc_t *desc = irq_desc + BCU_IRQ;
+	struct irq_desc *desc = irq_desc + BCU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -402,7 +402,7 @@
 
 void vr41xx_disable_bcuint(void)
 {
-	irq_desc_t *desc = irq_desc + BCU_IRQ;
+	struct irq_desc *desc = irq_desc + BCU_IRQ;
 	unsigned long flags;
 
 	if (current_cpu_data.cputype == CPU_VR4122 ||
@@ -442,7 +442,7 @@
 		icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
 }
 
-static struct hw_interrupt_type sysint1_irq_type = {
+static struct irq_chip sysint1_irq_type = {
 	.typename	= "SYSINT1",
 	.startup	= startup_sysint1_irq,
 	.shutdown	= shutdown_sysint1_irq,
@@ -478,7 +478,7 @@
 		icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
 }
 
-static struct hw_interrupt_type sysint2_irq_type = {
+static struct irq_chip sysint2_irq_type = {
 	.typename	= "SYSINT2",
 	.startup	= startup_sysint2_irq,
 	.shutdown	= shutdown_sysint2_irq,
@@ -490,7 +490,7 @@
 
 static inline int set_sysint1_assign(unsigned int irq, unsigned char assign)
 {
-	irq_desc_t *desc = irq_desc + irq;
+	struct irq_desc *desc = irq_desc + irq;
 	uint16_t intassign0, intassign1;
 	unsigned int pin;
 
@@ -549,7 +549,7 @@
 
 static inline int set_sysint2_assign(unsigned int irq, unsigned char assign)
 {
-	irq_desc_t *desc = irq_desc + irq;
+	struct irq_desc *desc = irq_desc + irq;
 	uint16_t intassign2, intassign3;
 	unsigned int pin;
 
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 66aa508..965f3d6 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -62,7 +62,7 @@
 static void irq_dispatch(unsigned int irq, struct pt_regs *regs)
 {
 	irq_cascade_t *cascade;
-	irq_desc_t *desc;
+	struct irq_desc *desc;
 
 	if (irq >= NR_IRQS) {
 		atomic_inc(&irq_err_count);
diff --git a/arch/mips/vr41xx/common/vrc4173.c b/arch/mips/vr41xx/common/vrc4173.c
index 2d287b8..4720a99 100644
--- a/arch/mips/vr41xx/common/vrc4173.c
+++ b/arch/mips/vr41xx/common/vrc4173.c
@@ -321,7 +321,7 @@
 
 void vrc4173_enable_piuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_PIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_PIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -336,7 +336,7 @@
 
 void vrc4173_disable_piuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_PIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_PIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -351,7 +351,7 @@
 
 void vrc4173_enable_aiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_AIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_AIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -366,7 +366,7 @@
 
 void vrc4173_disable_aiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_AIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_AIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -381,7 +381,7 @@
 
 void vrc4173_enable_kiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_KIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_KIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -396,7 +396,7 @@
 
 void vrc4173_disable_kiuint(uint16_t mask)
 {
-	irq_desc_t *desc = irq_desc + VRC4173_KIU_IRQ;
+	struct irq_desc *desc = irq_desc + VRC4173_KIU_IRQ;
 	unsigned long flags;
 	uint16_t val;
 
@@ -442,7 +442,7 @@
 		enable_vrc4173_irq(irq);
 }
 
-static struct hw_interrupt_type vrc4173_irq_type = {
+static struct irq_chip vrc4173_irq_type = {
 	.typename	= "VRC4173",
 	.startup	= startup_vrc4173_irq,
 	.shutdown	= shutdown_vrc4173_irq,
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/irq.c b/arch/mips/vr41xx/nec-cmbvr4133/irq.c
index 7b2511c..2483487 100644
--- a/arch/mips/vr41xx/nec-cmbvr4133/irq.c
+++ b/arch/mips/vr41xx/nec-cmbvr4133/irq.c
@@ -62,7 +62,7 @@
 		enable_8259A_irq(irq - I8259_IRQ_BASE);
 }
 
-static struct hw_interrupt_type i8259_irq_type = {
+static struct irq_chip i8259_irq_type = {
 	.typename       = "XT-PIC",
 	.startup        = startup_i8259_irq,
 	.shutdown       = shutdown_i8259_irq,