[ARM] Wrap calls to descriptor handlers

This is part of Thomas Gleixner's generic IRQ patch, which converts
ARM to use the generic IRQ subsystem.  Here, we wrap calls to
desc->handler() in an inline function, desc_handle_irq().  This
reduces the size of Thomas' patch since the changes become more
localised.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/common/locomo.c

@@ -177,7 +177,7 @@ static void locomo_handler(unsigned int irq, struct irqdesc *desc,
 		d = irq_desc + irq;
 		for (i = 0; i <= 3; i++, d++, irq++) {
 			if (req & (0x0100 << i)) {
-				d->handle(irq, d, regs);
+				desc_handle_irq(irq, d, regs);
 			}
 
 		}
@@ -220,7 +220,7 @@ static void locomo_key_handler(unsigned int irq, struct irqdesc *desc,
 
 	if (locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC) & 0x0001) {
 		d = irq_desc + LOCOMO_IRQ_KEY_START;
-		d->handle(LOCOMO_IRQ_KEY_START, d, regs);
+		desc_handle_irq(LOCOMO_IRQ_KEY_START, d, regs);
 	}
 }
 
@@ -273,7 +273,7 @@ static void locomo_gpio_handler(unsigned int irq, struct irqdesc *desc,
 		d = irq_desc + LOCOMO_IRQ_GPIO_START;
 		for (i = 0; i <= 15; i++, irq++, d++) {
 			if (req & (0x0001 << i)) {
-				d->handle(irq, d, regs);
+				desc_handle_irq(irq, d, regs);
 			}
 		}
 	}
@@ -328,7 +328,7 @@ static void locomo_lt_handler(unsigned int irq, struct irqdesc *desc,
 
 	if (locomo_readl(mapbase + LOCOMO_LTINT) & 0x0001) {
 		d = irq_desc + LOCOMO_IRQ_LT_START;
-		d->handle(LOCOMO_IRQ_LT_START, d, regs);
+		desc_handle_irq(LOCOMO_IRQ_LT_START, d, regs);
 	}
 }
 
@@ -379,7 +379,7 @@ static void locomo_spi_handler(unsigned int irq, struct irqdesc *desc,
 
 		for (i = 0; i <= 3; i++, irq++, d++) {
 			if (req & (0x0001 << i)) {
-				d->handle(irq, d, regs);
+				desc_handle_irq(irq, d, regs);
 			}
 		}
 	}

arch/arm/kernel/ecard.c

@@ -585,7 +585,7 @@ ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 
 		if (pending) {
 			struct irqdesc *d = irq_desc + ec->irq;
-			d->handle(ec->irq, d, regs);
+			desc_handle_irq(ec->irq, d, regs);
 			called ++;
 		}
 	}
@@ -632,7 +632,7 @@ ecard_irqexp_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg
 			 * Serial cards should go in 0/1, ethernet/scsi in 2/3
 			 * otherwise you will lose serial data at high speeds!
 			 */
-			d->handle(ec->irq, d, regs);
+			desc_handle_irq(ec->irq, d, regs);
 		} else {
 			printk(KERN_WARNING "card%d: interrupt from unclaimed "
 			       "card???\n", slot);

arch/arm/kernel/irq.c

@@ -517,7 +517,7 @@ static void do_pending_irqs(struct pt_regs *regs)
 		list_for_each_safe(l, n, &head) {
 			desc = list_entry(l, struct irqdesc, pend);
 			list_del_init(&desc->pend);
-			desc->handle(desc - irq_desc, desc, regs);
+			desc_handle_irq(desc - irq_desc, desc, regs);
 		}
 
 		/*
@@ -545,7 +545,7 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
 
 	irq_enter();
 	spin_lock(&irq_controller_lock);
-	desc->handle(irq, desc, regs);
+	desc_handle_irq(irq, desc, regs);
 
 	/*
 	 * Now re-run any pending interrupts.

arch/arm/mach-footbridge/isa-irq.c

@@ -95,7 +95,7 @@ isa_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 	}
 
 	desc = irq_desc + isa_irq;
-	desc->handle(isa_irq, desc, regs);
+	desc_handle_irq(isa_irq, desc, regs);
 }
 
 static struct irqaction irq_cascade = { .handler = no_action, .name = "cascade", };

arch/arm/mach-h720x/common.c

@@ -108,7 +108,7 @@ h720x_gpio_handler(unsigned int mask, unsigned int irq,
 	while (mask) {
 		if (mask & 1) {
 			IRQDBG("handling irq %d\n", irq);
-			desc->handle(irq, desc, regs);
+			desc_handle_irq(irq, desc, regs);
 		}
 		irq++;
 		desc++;

arch/arm/mach-h720x/cpu-h7202.c

@@ -126,7 +126,7 @@ h7202_timerx_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
 	desc = irq_desc + irq;
 	while (mask) {
 		if (mask & 1)
-			desc->handle(irq, desc, regs);
+			desc_handle_irq(irq, desc, regs);
 		irq++;
 		desc++;
 		mask >>= 1;

arch/arm/mach-imx/irq.c

@@ -152,7 +152,7 @@ imx_gpio_handler(unsigned int mask, unsigned int irq,
 	while (mask) {
 		if (mask & 1) {
 			DEBUG_IRQ("handling irq %d\n", irq);
-			desc->handle(irq, desc, regs);
+			desc_handle_irq(irq, desc, regs);
 		}
 		irq++;
 		desc++;

arch/arm/mach-integrator/integrator_cp.c

@@ -170,7 +170,7 @@ sic_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 		irq += IRQ_SIC_START;
 
 		desc = irq_desc + irq;
-		desc->handle(irq, desc, regs);
+		desc_handle_irq(irq, desc, regs);
 	} while (status);
 }
 

arch/arm/mach-ixp2000/core.c

@@ -317,7 +317,7 @@ static void ixp2000_GPIO_irq_handler(unsigned int irq, struct irqdesc *desc, str
 	for (i = 0; i <= 7; i++) {
 		if (status & (1<<i)) {
 			desc = irq_desc + i + IRQ_IXP2000_GPIO0;
-			desc->handle(i + IRQ_IXP2000_GPIO0, desc, regs);
+			desc_handle_irq(i + IRQ_IXP2000_GPIO0, desc, regs);
 		}
 	}
 }

arch/arm/mach-ixp2000/ixdp2x00.c

@@ -133,7 +133,7 @@ static void ixdp2x00_irq_handler(unsigned int irq, struct irqdesc *desc, struct
 			struct irqdesc *cpld_desc;
 			int cpld_irq = IXP2000_BOARD_IRQ(0) + i;
 			cpld_desc = irq_desc + cpld_irq;
-			cpld_desc->handle(cpld_irq, cpld_desc, regs);
+			desc_handle_irq(cpld_irq, cpld_desc, regs);
 		}
 	}
 

arch/arm/mach-ixp2000/ixdp2x01.c

@@ -82,7 +82,7 @@ static void ixdp2x01_irq_handler(unsigned int irq, struct irqdesc *desc, struct
 			struct irqdesc *cpld_desc;
 			int cpld_irq = IXP2000_BOARD_IRQ(0) + i;
 			cpld_desc = irq_desc + cpld_irq;
-			cpld_desc->handle(cpld_irq, cpld_desc, regs);
+			desc_handle_irq(cpld_irq, cpld_desc, regs);
 		}
 	}
 

arch/arm/mach-lh7a40x/common.h

@@ -13,4 +13,4 @@ extern struct sys_timer lh7a40x_timer;
 extern void lh7a400_init_irq (void);
 extern void lh7a404_init_irq (void);
 
-#define IRQ_DISPATCH(irq) irq_desc[irq].handle ((irq), &irq_desc[irq], regs)
+#define IRQ_DISPATCH(irq) desc_handle_irq((irq),(irq_desc + irq), regs)

arch/arm/mach-omap1/fpga.c

@@ -102,7 +102,7 @@ void innovator_fpga_IRQ_demux(unsigned int irq, struct irqdesc *desc,
 	     fpga_irq++, stat >>= 1) {
 		if (stat & 1) {
 			d = irq_desc + fpga_irq;
-			d->handle(fpga_irq, d, regs);
+			desc_handle_irq(fpga_irq, d, regs);
 		}
 	}
 }

arch/arm/mach-pxa/irq.c

@@ -157,7 +157,7 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irqdesc *desc,
 			mask >>= 2;
 			do {
 				if (mask & 1)
-					desc->handle(irq, desc, regs);
+					desc_handle_irq(irq, desc, regs);
 				irq++;
 				desc++;
 				mask >>= 1;
@@ -172,7 +172,7 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irqdesc *desc,
 			desc = irq_desc + irq;
 			do {
 				if (mask & 1)
-					desc->handle(irq, desc, regs);
+					desc_handle_irq(irq, desc, regs);
 				irq++;
 				desc++;
 				mask >>= 1;
@@ -187,7 +187,7 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irqdesc *desc,
 			desc = irq_desc + irq;
 			do {
 				if (mask & 1)
-					desc->handle(irq, desc, regs);
+					desc_handle_irq(irq, desc, regs);
 				irq++;
 				desc++;
 				mask >>= 1;
@@ -203,7 +203,7 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irqdesc *desc,
 			desc = irq_desc + irq;
 			do {
 				if (mask & 1)
-					desc->handle(irq, desc, regs);
+					desc_handle_irq(irq, desc, regs);
 				irq++;
 				desc++;
 				mask >>= 1;

arch/arm/mach-pxa/lubbock.c

@@ -84,7 +84,7 @@ static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
 		if (likely(pending)) {
 			irq = LUBBOCK_IRQ(0) + __ffs(pending);
 			desc = irq_desc + irq;
-			desc->handle(irq, desc, regs);
+			desc_handle_irq(irq, desc, regs);
 		}
 		pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
 	} while (pending);

arch/arm/mach-pxa/mainstone.c

@@ -72,7 +72,7 @@ static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
 		if (likely(pending)) {
 			irq = MAINSTONE_IRQ(0) + __ffs(pending);
 			desc = irq_desc + irq;
-			desc->handle(irq, desc, regs);
+			desc_handle_irq(irq, desc, regs);
 		}
 		pending = MST_INTSETCLR & mainstone_irq_enabled;
 	} while (pending);

arch/arm/mach-s3c2410/bast-irq.c

@@ -124,7 +124,7 @@ bast_irq_pc104_demux(unsigned int irq,
 			irqno = bast_pc104_irqs[i];
 			desc = irq_desc + irqno;
 
-			desc->handle(irqno, desc, regs);
+			desc_handle_irq(irqno, desc, regs);
 		}
 
 		stat >>= 1;

arch/arm/mach-s3c2410/irq.c

@@ -496,11 +496,11 @@ static void s3c_irq_demux_adc(unsigned int irq,
 	if (subsrc != 0) {
 		if (subsrc & 1) {
 			mydesc = irq_desc + IRQ_TC;
-			mydesc->handle( IRQ_TC, mydesc, regs);
+			desc_handle_irq(IRQ_TC, mydesc, regs);
 		}
 		if (subsrc & 2) {
 			mydesc = irq_desc + IRQ_ADC;
-			mydesc->handle(IRQ_ADC, mydesc, regs);
+			desc_handle_irq(IRQ_ADC, mydesc, regs);
 		}
 	}
 }
@@ -529,17 +529,17 @@ static void s3c_irq_demux_uart(unsigned int start,
 		desc = irq_desc + start;
 
 		if (subsrc & 1)
-			desc->handle(start, desc, regs);
+			desc_handle_irq(start, desc, regs);
 
 		desc++;
 
 		if (subsrc & 2)
-			desc->handle(start+1, desc, regs);
+			desc_handle_irq(start+1, desc, regs);
 
 		desc++;
 
 		if (subsrc & 4)
-			desc->handle(start+2, desc, regs);
+			desc_handle_irq(start+2, desc, regs);
 	}
 }
 

arch/arm/mach-s3c2410/s3c2440-irq.c

@@ -64,11 +64,11 @@ static void s3c_irq_demux_wdtac97(unsigned int irq,
 	if (subsrc != 0) {
 		if (subsrc & 1) {
 			mydesc = irq_desc + IRQ_S3C2440_WDT;
-			mydesc->handle( IRQ_S3C2440_WDT, mydesc, regs);
+			desc_handle_irq(IRQ_S3C2440_WDT, mydesc, regs);
 		}
 		if (subsrc & 2) {
 			mydesc = irq_desc + IRQ_S3C2440_AC97;
-			mydesc->handle(IRQ_S3C2440_AC97, mydesc, regs);
+			desc_handle_irq(IRQ_S3C2440_AC97, mydesc, regs);
 		}
 	}
 }
@@ -122,11 +122,11 @@ static void s3c_irq_demux_cam(unsigned int irq,
 	if (subsrc != 0) {
 		if (subsrc & 1) {
 			mydesc = irq_desc + IRQ_S3C2440_CAM_C;
-			mydesc->handle( IRQ_S3C2440_WDT, mydesc, regs);
+			desc_handle_irq(IRQ_S3C2440_CAM_C, mydesc, regs);
 		}
 		if (subsrc & 2) {
 			mydesc = irq_desc + IRQ_S3C2440_CAM_P;
-			mydesc->handle(IRQ_S3C2440_AC97, mydesc, regs);
+			desc_handle_irq(IRQ_S3C2440_CAM_P, mydesc, regs);
 		}
 	}
 }

arch/arm/mach-sa1100/irq.c

@@ -126,7 +126,7 @@ sa1100_high_gpio_handler(unsigned int irq, struct irqdesc *desc,
 		mask >>= 11;
 		do {
 			if (mask & 1)
-				desc->handle(irq, desc, regs);
+				desc_handle_irq(irq, desc, regs);
 			mask >>= 1;
 			irq++;
 			desc++;

arch/arm/mach-sa1100/neponset.c

@@ -61,12 +61,12 @@ neponset_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg
 
 			if (irr & IRR_ETHERNET) {
 				d = irq_desc + IRQ_NEPONSET_SMC9196;
-				d->handle(IRQ_NEPONSET_SMC9196, d, regs);
+				desc_handle_irq(IRQ_NEPONSET_SMC9196, d, regs);
 			}
 
 			if (irr & IRR_USAR) {
 				d = irq_desc + IRQ_NEPONSET_USAR;
-				d->handle(IRQ_NEPONSET_USAR, d, regs);
+				desc_handle_irq(IRQ_NEPONSET_USAR, d, regs);
 			}
 
 			desc->chip->unmask(irq);
@@ -74,7 +74,7 @@ neponset_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg
 
 		if (irr & IRR_SA1111) {
 			d = irq_desc + IRQ_NEPONSET_SA1111;
-			d->handle(IRQ_NEPONSET_SA1111, d, regs);
+			desc_handle_irq(IRQ_NEPONSET_SA1111, d, regs);
 		}
 	}
 }

arch/arm/mach-versatile/core.c

@@ -108,7 +108,7 @@ sic_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 		irq += IRQ_SIC_START;
 
 		desc = irq_desc + irq;
-		desc->handle(irq, desc, regs);
+		desc_handle_irq(irq, desc, regs);
 	} while (status);
 }
 

arch/arm/plat-omap/gpio.c

@@ -590,7 +590,7 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
 		if (!(isr & 1))
 			continue;
 		d = irq_desc + gpio_irq;
-		d->handle(gpio_irq, d, regs);
+		desc_handle_irq(gpio_irq, d, regs);
 	}
 }
 

include/asm-arm/mach/irq.h

@@ -91,6 +91,14 @@ struct irqdesc {
 
 extern struct irqdesc irq_desc[];
 
+/*
+ * Helpful inline function for calling irq descriptor handlers.
+ */
+static inline void desc_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+{
+	desc->handle(irq, desc, regs);
+}
+
 /*
  * This is internal.  Do not use it.
  */