[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>

diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 30ab1c3e1d4de578d1f7acb9c57b395d0784675a..51f430cc2fbf5b7a08bcfed5bc6dee1e97fb1435 100644 (file)
--- a/arch/arm/common/locomo.c
+++ b/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);
                        }
                }
        }

diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 6540db6913381f4474d12594c6a84376d53724dd..dceb826bd216ece20e0e8399eaf785fc7d5cbde3 100644 (file)
--- a/arch/arm/kernel/ecard.c
+++ b/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);

diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 58b3bd00083461184bba66c2632df4feede7c1b3..3284118f356b90c8ae1ec7320d71ce143d704220 100644 (file)
--- a/arch/arm/kernel/irq.c
+++ b/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.

diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index b21016070ea304a07e0ae0a2741f4162c2872537..e1c43b331d64d357ece5282be3929cd136bfe026 100644 (file)
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/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", };

diff --git a/arch/arm/mach-h720x/common.c b/arch/arm/mach-h720x/common.c
index 96aa3af70d86ce484220b44cbc996450c568dec1..5110e2e65ddd3176a78c4880daaec219d4eae138 100644 (file)
--- a/arch/arm/mach-h720x/common.c
+++ b/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++;

diff --git a/arch/arm/mach-h720x/cpu-h7202.c b/arch/arm/mach-h720x/cpu-h7202.c
index 593b6a2a30e1d5e8c2aa05ded41c8cbf1bd1284b..4b3199319e68b4c988f4f24edff2ded120405f24 100644 (file)
--- a/arch/arm/mach-h720x/cpu-h7202.c
+++ b/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;

diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c
index 45d22dd5583a8b2ba6c29ec4fd95f4571a6ab7ea..eeb8a6d4a3999c1f9f605588ab0852e0b4b88621 100644 (file)
--- a/arch/arm/mach-imx/irq.c
+++ b/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++;

diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 569f328c479db0c4d30e468dd2772f3a9775b78a..2be5c03ab87f858c07168e646396566b8fef3106 100644 (file)
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/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);
 }
 

diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 594b4c4d5b11ff1c57b1e3267698d5bf82a2ea17..781d10ae00b7dfc5771fd28d99eab154a8de1706 100644 (file)
--- a/arch/arm/mach-ixp2000/core.c
+++ b/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);
                }
        }
 }

diff --git a/arch/arm/mach-ixp2000/ixdp2x00.c b/arch/arm/mach-ixp2000/ixdp2x00.c
index a43369ad876ca57cc27ab0732053ccb5d13417a1..63ba0191aa6572c5ee98db13713cd62096f2aed7 100644 (file)
--- a/arch/arm/mach-ixp2000/ixdp2x00.c
+++ b/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);
                }
        }
 

diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index 43447dad165759affb4ddcdd22e108c0cdefd187..7a51099212877c94efef75908be49c37e312ecdf 100644 (file)
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/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);
                }
        }
 

diff --git a/arch/arm/mach-lh7a40x/common.h b/arch/arm/mach-lh7a40x/common.h
index beda7c2602fbe37bdeec9b1800d2b00acc6d0850..578a52461fdbc3c5670acdbc9b3d79bb4f8112eb 100644 (file)
--- a/arch/arm/mach-lh7a40x/common.h
+++ b/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)

diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index 7c08f6c2e1d0bc38d0864fb724349de0abcc41ec..c12a7833562570a4e88497c85b5381f3dd0ad080 100644 (file)
--- a/arch/arm/mach-omap1/fpga.c
+++ b/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);
                }
        }
 }

diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 6cf35f6744645f8417de1c4fcecef99bb9ec8f04..539b596005fc266b2c49f8d0edfa22d7758b1b13 100644 (file)
--- a/arch/arm/mach-pxa/irq.c
+++ b/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;

diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 6309853b59bef49deafd753b6166ceea032e7d8e..923f6eb774c0c80a7e54a5bc7b9cfc45730437f7 100644 (file)
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/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);

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 827b7b5a5be84438e2f3ceb55c6603198dfee23e..85fdb5b1470a140faa2e5b6a1d9fd02612ac337d 100644 (file)
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/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);

diff --git a/arch/arm/mach-s3c2410/bast-irq.c b/arch/arm/mach-s3c2410/bast-irq.c
index 5e5bbe893cbb7f61fc620896b3a50c0164fdd71e..49914709fa09a9b44007e26fac065530f84751a9 100644 (file)
--- a/arch/arm/mach-s3c2410/bast-irq.c
+++ b/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;

diff --git a/arch/arm/mach-s3c2410/irq.c b/arch/arm/mach-s3c2410/irq.c
index 67138797866a3575ebcb44347604b879807d194c..66d8c068e940b9436693361f7bdd5dc5f941bc6e 100644 (file)
--- a/arch/arm/mach-s3c2410/irq.c
+++ b/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);
        }
 }
 

diff --git a/arch/arm/mach-s3c2410/s3c2440-irq.c b/arch/arm/mach-s3c2410/s3c2440-irq.c
index 7cb9912242a3964b66c3e686bb5688595c3e4e5c..278d0044c85d7c3315e46363094c3c125bb85dfe 100644 (file)
--- a/arch/arm/mach-s3c2410/s3c2440-irq.c
+++ b/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);
                }
        }
 }

diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index cc349bc1b7c275201aed10dbadd504b34c89fc80..c131a5201b5ba885ba9448381cfaab27ab345634 100644 (file)
--- a/arch/arm/mach-sa1100/irq.c
+++ b/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++;

diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index 1405383463ea7503f940980c93c6dbb83adbe64d..fc061641b7be083cb44d89e33fa22c3826e9c272 100644 (file)
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/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);
                }
        }
 }

diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index f01c0f8a2bb369ccb7dfb47dc5ea75c13443d0b9..3c8862fde51ad18a362713f821757b1cba4a3903 100644 (file)
--- a/arch/arm/mach-versatile/core.c
+++ b/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);
 }
 

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 1c85b4e536c2e005b25f2249113bec4e60d97a5c..aa481ea3d702c0fb00035a1941be2bdbc0d999eb 100644 (file)
--- a/arch/arm/plat-omap/gpio.c
+++ b/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);
        }
 }
 

diff --git a/include/asm-arm/mach/irq.h b/include/asm-arm/mach/irq.h
index bc9763db1d3715c3a829f6799a2bc638755728fe..0ce6ca588d8c0b89b43a765d35b294cf0cdad9f4 100644 (file)
--- a/include/asm-arm/mach/irq.h
+++ b/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.
  */