[RFC v1 05/25] gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[RFC v1 05/25] gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[Jiang Liu]

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 drivers/gpio/gpio-bcm-kona.c   |    2 +-
 drivers/gpio/gpio-dwapb.c      |    2 +-
 drivers/gpio/gpio-mvebu.c      |    2 +-
 drivers/gpio/gpio-mxc.c        |    6 +++---
 drivers/gpio/gpio-mxs.c        |    2 +-
 drivers/gpio/gpio-omap.c       |    2 +-
 drivers/gpio/gpio-tegra.c      |    4 +---
 drivers/gpio/gpio-timberdale.c |    2 +-
 drivers/gpio/gpio-vf610.c      |    2 +-
 drivers/gpio/gpio-zynq.c       |    2 +-
 10 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index b164ce837b43..2e7a8c66fe57 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -432,7 +432,7 @@ static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 	void __iomem *reg_base;
 	int bit, bank_id;
 	unsigned long sta;
-	struct bcm_kona_gpio_bank *bank = irq_get_handler_data(irq);
+	struct bcm_kona_gpio_bank *bank = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	chained_irq_enter(chip, desc);
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 58faf04fce5d..649be07a845d 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -149,7 +149,7 @@ static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
 
 static void dwapb_irq_handler(u32 irq, struct irq_desc *desc)
 {
-	struct dwapb_gpio *gpio = irq_get_handler_data(irq);
+	struct dwapb_gpio *gpio = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	dwapb_do_irq(gpio);
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 1a54205860f5..a8c302ef7bc4 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -460,7 +460,7 @@ static int mvebu_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 
 static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct mvebu_gpio_chip *mvchip = irq_get_handler_data(irq);
+	struct mvebu_gpio_chip *mvchip = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	u32 cause, type;
 	int i;
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 9f7446a7ac64..f10948c04f7c 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -275,8 +275,8 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
 static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_stat;
-	struct mxc_gpio_port *port = irq_get_handler_data(irq);
-	struct irq_chip *chip = irq_get_chip(irq);
+	struct mxc_gpio_port *port = irq_desc_get_handler_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	chained_irq_enter(chip, desc);
 
@@ -292,7 +292,7 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_msk, irq_stat;
 	struct mxc_gpio_port *port;
-	struct irq_chip *chip = irq_get_chip(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
 
 	chained_irq_enter(chip, desc);
 
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 84cbda6acdda..039c7d50e64f 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -157,7 +157,7 @@ static void mxs_flip_edge(struct mxs_gpio_port *port, u32 gpio)
 static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_stat;
-	struct mxs_gpio_port *port = irq_get_handler_data(irq);
+	struct mxs_gpio_port *port = irq_desc_get_handler_data(desc);
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index b232397ad7ec..acbf3feff1e2 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -719,7 +719,7 @@ static void omap_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 	struct gpio_bank *bank;
 	int unmasked = 0;
 	struct irq_chip *irqchip = irq_desc_get_chip(desc);
-	struct gpio_chip *chip = irq_get_handler_data(irq);
+	struct gpio_chip *chip = irq_desc_get_handler_data(desc);
 
 	chained_irq_enter(irqchip, desc);
 
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 1741981d53c8..89ed8a56eb0b 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -268,16 +268,14 @@ static void tegra_gpio_irq_shutdown(struct irq_data *d)
 
 static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct tegra_gpio_bank *bank;
 	int port;
 	int pin;
 	int unmasked = 0;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct tegra_gpio_bank *bank = irq_desc_get_handler_data(desc);
 
 	chained_irq_enter(chip, desc);
 
-	bank = irq_get_handler_data(irq);
-
 	for (port = 0; port < 4; port++) {
 		int gpio = tegra_gpio_compose(bank->bank, port, 0);
 		unsigned long sta = tegra_gpio_readl(GPIO_INT_STA(gpio)) &
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index e8f97e03c9bb..d4e8cb4f2e53 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -194,7 +194,7 @@ out:
 
 static void timbgpio_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct timbgpio *tgpio = irq_get_handler_data(irq);
+	struct timbgpio *tgpio = irq_desc_get_handler_data(desc);
 	unsigned long ipr;
 	int offset;
 
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index 7bd9f209ffa8..fa344388f4da 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -120,7 +120,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
 
 static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
-	struct vf610_gpio_port *port = irq_get_handler_data(irq);
+	struct vf610_gpio_port *port = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	int pin;
 	unsigned long irq_isfr;
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index aea6075e5b2e..70e3a568b1cb 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -499,7 +499,7 @@ static void zynq_gpio_irqhandler(unsigned int irq, struct irq_desc *desc)
 {
 	u32 int_sts, int_enb;
 	unsigned int bank_num;
-	struct zynq_gpio *gpio = irq_get_handler_data(irq);
+	struct zynq_gpio *gpio = irq_desc_get_handler_data(desc);
 	struct irq_chip *irqchip = irq_desc_get_chip(desc);
 
 	chained_irq_enter(irqchip, desc);
-- 
1.7.10.4

[RFC v1 08/25] mfd: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[Jiang Liu]

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Do the same thing to avoid pattern "irq_get_chip_data(data->irq)".

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 drivers/mfd/ezx-pcap.c    |    2 +-
 drivers/mfd/max8997-irq.c |    8 ++++----
 drivers/mfd/mt6397-core.c |    8 ++++----
 drivers/mfd/t7l66xb.c     |    2 +-
 drivers/mfd/tc6393xb.c    |    2 +-
 drivers/mfd/twl6030-irq.c |    2 +-
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 5991faddd3c6..e5f4ffaa5414 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -207,7 +207,7 @@ static void pcap_isr_work(struct work_struct *work)
 
 static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-	struct pcap_chip *pcap = irq_get_handler_data(irq);
+	struct pcap_chip *pcap = irq_desc_get_handler_data(desc);
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 	queue_work(pcap->workqueue, &pcap->isr_work);
diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c
index 43fa61413e93..381738b477f8 100644
--- a/drivers/mfd/max8997-irq.c
+++ b/drivers/mfd/max8997-irq.c
@@ -113,14 +113,14 @@ static const struct max8997_irq_data max8997_irqs[] = {
 
 static void max8997_irq_lock(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 
 	mutex_lock(&max8997->irqlock);
 }
 
 static void max8997_irq_sync_unlock(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	int i;
 
 	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
@@ -148,7 +148,7 @@ irq_to_max8997_irq(struct max8997_dev *max8997, int irq)
 
 static void max8997_irq_mask(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
 								data->irq);
 
@@ -157,7 +157,7 @@ static void max8997_irq_mask(struct irq_data *data)
 
 static void max8997_irq_unmask(struct irq_data *data)
 {
-	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
 	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
 								data->irq);
 
diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 09bc7804952a..dab325b9d0df 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -39,14 +39,14 @@ static const struct mfd_cell mt6397_devs[] = {
 
 static void mt6397_irq_lock(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 
 	mutex_lock(&mt6397->irqlock);
 }
 
 static void mt6397_irq_sync_unlock(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 
 	regmap_write(mt6397->regmap, MT6397_INT_CON0, mt6397->irq_masks_cur[0]);
 	regmap_write(mt6397->regmap, MT6397_INT_CON1, mt6397->irq_masks_cur[1]);
@@ -56,7 +56,7 @@ static void mt6397_irq_sync_unlock(struct irq_data *data)
 
 static void mt6397_irq_disable(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 	int shift = data->hwirq & 0xf;
 	int reg = data->hwirq >> 4;
 
@@ -65,7 +65,7 @@ static void mt6397_irq_disable(struct irq_data *data)
 
 static void mt6397_irq_enable(struct irq_data *data)
 {
-	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
+	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
 	int shift = data->hwirq & 0xf;
 	int reg = data->hwirq >> 4;
 
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index c09fb5dccd50..b752ca2be549 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -187,7 +187,7 @@ static struct mfd_cell t7l66xb_cells[] = {
 /* Handle the T7L66XB interrupt mux */
 static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct t7l66xb *t7l66xb = irq_get_handler_data(irq);
+	struct t7l66xb *t7l66xb = irq_desc_get_handler_data(desc);
 	unsigned int isr;
 	unsigned int i, irq_base;
 
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 63458b39a97d..d21253a51cff 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -525,7 +525,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
 static void
 tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-	struct tc6393xb *tc6393xb = irq_get_handler_data(irq);
+	struct tc6393xb *tc6393xb = irq_desc_get_handler_data(desc);
 	unsigned int isr;
 	unsigned int i, irq_base;
 
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 2807e1a95663..5b8cd5cd42cf 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -231,7 +231,7 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data)
 
 static int twl6030_irq_set_wake(struct irq_data *d, unsigned int on)
 {
-	struct twl6030_irq *pdata = irq_get_chip_data(d->irq);
+	struct twl6030_irq *pdata = irq_data_get_irq_chip_data(d);
 
 	if (on)
 		atomic_inc(&pdata->wakeirqs);
-- 
1.7.10.4

[RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Jiang Liu]

Now most IRQ flow handlers make no use of the first parameter 'irq'.
And for those who do make use of 'irq', we could easily get the irq
number through irq_desc->irq_data->irq. So kill the first parameter
'irq' of irq_flow_handler_t.

To ease review, I have split the changes into several parts, though
they should be merge as one to support bisecting.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/arm/common/it8152.c               |    2 +-
 arch/arm/common/locomo.c               |    3 ++-
 arch/arm/common/sa1111.c               |    4 ++--
 arch/arm/include/asm/hardware/it8152.h |    2 +-
 arch/arm/include/asm/mach/irq.h        |    4 ++--
 arch/arm/mach-dove/irq.c               |    5 +++--
 arch/arm/mach-footbridge/isa-irq.c     |    4 ++--
 arch/arm/mach-gemini/gpio.c            |    2 +-
 arch/arm/mach-imx/3ds_debugboard.c     |    2 +-
 arch/arm/mach-imx/mach-mx31ads.c       |    2 +-
 arch/arm/mach-iop13xx/msi.c            |    2 +-
 arch/arm/mach-lpc32xx/irq.c            |    4 ++--
 arch/arm/mach-omap1/fpga.c             |    2 +-
 arch/arm/mach-omap2/prm_common.c       |    2 +-
 arch/arm/mach-pxa/balloon3.c           |    3 ++-
 arch/arm/mach-pxa/cm-x2xx-pci.c        |    4 ++--
 arch/arm/mach-pxa/lpd270.c             |    3 ++-
 arch/arm/mach-pxa/pcm990-baseboard.c   |    1 +
 arch/arm/mach-pxa/viper.c              |    3 ++-
 arch/arm/mach-pxa/zeus.c               |    3 ++-
 arch/arm/mach-rpc/ecard.c              |    2 +-
 arch/arm/mach-s3c64xx/common.c         |    8 ++++----
 arch/arm/mach-sa1100/neponset.c        |    2 +-
 arch/arm/plat-orion/gpio.c             |    2 +-
 24 files changed, 39 insertions(+), 32 deletions(-)

diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 5114b68e99d5..aaa206181f92 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -95,7 +95,7 @@ void it8152_init_irq(void)
 	}
 }
 
-void it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
+void it8152_irq_demux(struct irq_desc *desc)
 {
        int bits_pd, bits_lp, bits_ld;
        int i;
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 02af4a07ceca..99d4535d7cc6 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -138,9 +138,10 @@ static struct locomo_dev_info locomo_devices[] = {
 	},
 };
 
-static void locomo_handler(unsigned int irq, struct irq_desc *desc)
+static void locomo_handler(struct irq_desc *desc)
 {
 	struct locomo *lchip = irq_desc_get_chip_data(desc);
+	unsigned int irq;
 	int req, i;
 
 	/* Acknowledge the parent IRQ */
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 0d0844fa54c2..762dfe7081f0 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -197,7 +197,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
  * will call us again if there are more interrupts to process.
  */
 static void
-sa1111_irq_handler(unsigned int irq, struct irq_desc *desc)
+sa1111_irq_handler(struct irq_desc *desc)
 {
 	unsigned int stat0, stat1, i;
 	struct sa1111 *sachip = irq_desc_get_handler_data(desc);
@@ -213,7 +213,7 @@ sa1111_irq_handler(unsigned int irq, struct irq_desc *desc)
 	sa1111_writel(stat1, mapbase + SA1111_INTSTATCLR1);
 
 	if (stat0 == 0 && stat1 == 0) {
-		do_bad_IRQ(irq, desc);
+		do_bad_IRQ(desc);
 		return;
 	}
 
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index d36a73d7c0e8..076777ff3daa 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -106,7 +106,7 @@ extern void __iomem *it8152_base_address;
 struct pci_dev;
 struct pci_sys_data;
 
-extern void it8152_irq_demux(unsigned int irq, struct irq_desc *desc);
+extern void it8152_irq_demux(struct irq_desc *desc);
 extern void it8152_init_irq(void);
 extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index 2092ee1e1300..4703e00283db 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -23,10 +23,10 @@ extern int show_fiq_list(struct seq_file *, int);
 /*
  * This is for easy migration, but should be changed in the source
  */
-#define do_bad_IRQ(irq,desc)				\
+#define do_bad_IRQ(desc)				\
 do {							\
 	raw_spin_lock(&desc->lock);			\
-	handle_bad_irq(irq, desc);			\
+	handle_bad_irq(desc);			\
 	raw_spin_unlock(&desc->lock);			\
 } while(0)
 
diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
index 4a5a7aedcb76..30140cbdb249 100644
--- a/arch/arm/mach-dove/irq.c
+++ b/arch/arm/mach-dove/irq.c
@@ -69,13 +69,14 @@ static struct irq_chip pmu_irq_chip = {
 	.irq_ack	= pmu_irq_ack,
 };
 
-static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void pmu_irq_handler(struct irq_desc *desc)
 {
 	unsigned long cause = readl(PMU_INTERRUPT_CAUSE);
+	unsigned int irq;
 
 	cause &= readl(PMU_INTERRUPT_MASK);
 	if (cause == 0) {
-		do_bad_IRQ(irq, desc);
+		do_bad_IRQ(desc);
 		return;
 	}
 
diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index c3a0abbc9049..f78e46662447 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -88,12 +88,12 @@ static struct irq_chip isa_hi_chip = {
 };
 
 static void
-isa_irq_handler(unsigned int irq, struct irq_desc *desc)
+isa_irq_handler(struct irq_desc *desc)
 {
 	unsigned int isa_irq = *(unsigned char *)PCIIACK_BASE;
 
 	if (isa_irq < _ISA_IRQ(0) || isa_irq >= _ISA_IRQ(16)) {
-		do_bad_IRQ(isa_irq, desc);
+		do_bad_IRQ(desc);
 		return;
 	}
 
diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
index f8cb5710d6ee..713f655bcc74 100644
--- a/arch/arm/mach-gemini/gpio.c
+++ b/arch/arm/mach-gemini/gpio.c
@@ -126,7 +126,7 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
 	unsigned int port = (unsigned int)irq_desc_get_handler_data(desc);
 	unsigned int gpio_irq_no, irq_stat;
diff --git a/arch/arm/mach-imx/3ds_debugboard.c b/arch/arm/mach-imx/3ds_debugboard.c
index 134377352966..d93d3337b579 100644
--- a/arch/arm/mach-imx/3ds_debugboard.c
+++ b/arch/arm/mach-imx/3ds_debugboard.c
@@ -85,7 +85,7 @@ static struct platform_device smsc_lan9217_device = {
 	.resource = smsc911x_resources,
 };
 
-static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mxc_expio_irq_handler(struct irq_desc *desc)
 {
 	u32 imr_val;
 	u32 int_valid;
diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
index d08c37c696f6..07aef418a0e1 100644
--- a/arch/arm/mach-imx/mach-mx31ads.c
+++ b/arch/arm/mach-imx/mach-mx31ads.c
@@ -154,7 +154,7 @@ static inline void mxc_init_imx_uart(void)
 	imx31_add_imx_uart0(&uart_pdata);
 }
 
-static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx31ads_expio_irq_handler(struct irq_desc *desc)
 {
 	u32 imr_val;
 	u32 int_valid;
diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c
index 9f89e76dfbb9..f6235b28578c 100644
--- a/arch/arm/mach-iop13xx/msi.c
+++ b/arch/arm/mach-iop13xx/msi.c
@@ -91,7 +91,7 @@ static void (*write_imipr[])(u32) = {
 	write_imipr_3,
 };
 
-static void iop13xx_msi_handler(unsigned int irq, struct irq_desc *desc)
+static void iop13xx_msi_handler(struct irq_desc *desc)
 {
 	int i, j;
 	unsigned long status;
diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index 9ecb8f9c4ef5..f361fed99105 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -370,7 +370,7 @@ static struct irq_chip lpc32xx_irq_chip = {
 	.irq_set_wake = lpc32xx_irq_wake
 };
 
-static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
+static void lpc32xx_sic1_handler(struct irq_desc *desc)
 {
 	unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC1_BASE));
 
@@ -383,7 +383,7 @@ static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
 	}
 }
 
-static void lpc32xx_sic2_handler(unsigned int irq, struct irq_desc *desc)
+static void lpc32xx_sic2_handler(struct irq_desc *desc)
 {
 	unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC2_BASE));
 
diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index 3c0e42219200..374bccf5ce24 100644
--- a/arch/arm/mach-omap1/fpga.c
+++ b/arch/arm/mach-omap1/fpga.c
@@ -87,7 +87,7 @@ static void fpga_mask_ack_irq(struct irq_data *d)
 	fpga_ack_irq(d);
 }
 
-static void innovator_fpga_IRQ_demux(unsigned int irq, struct irq_desc *desc)
+static void innovator_fpga_IRQ_demux(struct irq_desc *desc)
 {
 	u32 stat;
 	int fpga_irq;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 7add7994dbfc..6cfc1e54d41f 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -102,7 +102,7 @@ static void omap_prcm_events_filter_priority(unsigned long *events,
  * dispatched accordingly. Clearing of the wakeup events should be
  * done by the SoC specific individual handlers.
  */
-static void omap_prcm_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void omap_prcm_irq_handler(struct irq_desc *desc)
 {
 	unsigned long pending[OMAP_PRCM_MAX_NR_PENDING_REG];
 	unsigned long priority_pending[OMAP_PRCM_MAX_NR_PENDING_REG];
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index d897292712eb..506365cdd58b 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -496,8 +496,9 @@ static struct irq_chip balloon3_irq_chip = {
 	.irq_unmask	= balloon3_unmask_irq,
 };
 
-static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void balloon3_irq_handler(struct irq_desc *desc)
 {
+	unsigned int irq;
 	unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
 					balloon3_irq_enabled;
 	do {
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
index d8f816c24a2f..3221ae15bef7 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.c
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
@@ -29,12 +29,12 @@
 void __iomem *it8152_base_address;
 static int cmx2xx_it8152_irq_gpio;
 
-static void cmx2xx_it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void cmx2xx_it8152_irq_demux(struct irq_desc *desc)
 {
 	/* clear our parent irq */
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-	it8152_irq_demux(irq, desc);
+	it8152_irq_demux(desc);
 }
 
 void __cmx2xx_pci_init_irq(int irq_gpio)
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index eaee2c20b189..cbf00f51808f 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -120,9 +120,10 @@ static struct irq_chip lpd270_irq_chip = {
 	.irq_unmask	= lpd270_unmask_irq,
 };
 
-static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void lpd270_irq_handler(struct irq_desc *desc)
 {
 	unsigned long pending;
+	unsigned int irq;
 
 	pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
 	do {
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 2897da2a5df6..0d8331f8536e 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -287,6 +287,7 @@ static struct irq_chip pcm990_irq_chip = {
 static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	unsigned long pending;
+	unsigned int irq;
 
 	pending = ~pcm990_cpld_readb(PCM990_CTRL_INTSETCLR);
 	pending &= pcm990_irq_enabled;
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index de3b08073fe7..bd52fb914d6a 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -276,9 +276,10 @@ static inline unsigned long viper_irq_pending(void)
 			viper_irq_enabled_mask;
 }
 
-static void viper_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void viper_irq_handler(struct irq_desc *desc)
 {
 	unsigned long pending;
+	unsigned int irq;
 
 	pending = viper_irq_pending();
 	do {
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index ac2ae5c71ab4..7ffff0b424c2 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -105,9 +105,10 @@ static inline unsigned long zeus_irq_pending(void)
 	return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask;
 }
 
-static void zeus_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void zeus_irq_handler(struct irq_desc *desc)
 {
 	unsigned long pending;
+	unsigned int irq;
 
 	pending = zeus_irq_pending();
 	do {
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index fcb1d59f7aec..b7074cd5ebfd 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -552,7 +552,7 @@ static void ecard_check_lockup(struct irq_desc *desc)
 }
 
 static void
-ecard_irq_handler(unsigned int irq, struct irq_desc *desc)
+ecard_irq_handler(struct irq_desc *desc)
 {
 	ecard_t *ec;
 	int called = 0;
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 16547f2641a3..5c9ca33f61e5 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -389,22 +389,22 @@ static inline void s3c_irq_demux_eint(unsigned int start, unsigned int end)
 	}
 }
 
-static void s3c_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint0_3(struct irq_desc *desc)
 {
 	s3c_irq_demux_eint(0, 3);
 }
 
-static void s3c_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint4_11(struct irq_desc *desc)
 {
 	s3c_irq_demux_eint(4, 11);
 }
 
-static void s3c_irq_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint12_19(struct irq_desc *desc)
 {
 	s3c_irq_demux_eint(12, 19);
 }
 
-static void s3c_irq_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
+static void s3c_irq_demux_eint20_27(struct irq_desc *desc)
 {
 	s3c_irq_demux_eint(20, 27);
 }
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index af868d258e66..cc73c885d6a1 100644
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/arch/arm/mach-sa1100/neponset.c
@@ -166,7 +166,7 @@ static struct sa1100_port_fns neponset_port_fns = {
  * ensure that the IRQ signal is deasserted before returning.  This
  * is rather unfortunate.
  */
-static void neponset_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void neponset_irq_handler(struct irq_desc *desc)
 {
 	struct neponset_drvdata *d = irq_desc_get_handler_data(desc);
 	unsigned int irr;
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index caba04340619..dc91cfa5483f 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -407,7 +407,7 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type)
 	return 0;
 }
 
-static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void gpio_irq_handler(struct irq_desc *desc)
 {
 	struct orion_gpio_chip *ochip = irq_desc_get_handler_data(desc);
 	u32 cause, type;
-- 
1.7.10.4

[RFC v1 22/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Jiang Liu]

Now most IRQ flow handlers make no use of the first parameter 'irq'.
And for those who do make use of 'irq', we could easily get the irq
number through irq_desc->irq_data->irq. So kill the first parameter
'irq' of irq_flow_handler_t.

To ease review, I have split the changes into several parts, though
they should be merge as one to support bisecting.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 drivers/gpio/gpio-altera.c     |    6 ++----
 drivers/gpio/gpio-bcm-kona.c   |    2 +-
 drivers/gpio/gpio-davinci.c    |    3 ++-
 drivers/gpio/gpio-dwapb.c      |    2 +-
 drivers/gpio/gpio-ep93xx.c     |    5 +++--
 drivers/gpio/gpio-intel-mid.c  |    2 +-
 drivers/gpio/gpio-lynxpoint.c  |    2 +-
 drivers/gpio/gpio-mpc8xxx.c    |    2 +-
 drivers/gpio/gpio-msic.c       |    2 +-
 drivers/gpio/gpio-msm-v2.c     |    2 +-
 drivers/gpio/gpio-mvebu.c      |    2 +-
 drivers/gpio/gpio-mxc.c        |    4 ++--
 drivers/gpio/gpio-mxs.c        |    2 +-
 drivers/gpio/gpio-omap.c       |    2 +-
 drivers/gpio/gpio-pl061.c      |    2 +-
 drivers/gpio/gpio-pxa.c        |    2 +-
 drivers/gpio/gpio-sa1100.c     |    4 ++--
 drivers/gpio/gpio-tegra.c      |    2 +-
 drivers/gpio/gpio-timberdale.c |    5 +++--
 drivers/gpio/gpio-tz1090.c     |    4 ++--
 drivers/gpio/gpio-vf610.c      |    2 +-
 drivers/gpio/gpio-zynq.c       |    2 +-
 22 files changed, 31 insertions(+), 30 deletions(-)

diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c
index 449fb46cb8a0..985c3bd9a03e 100644
--- a/drivers/gpio/gpio-altera.c
+++ b/drivers/gpio/gpio-altera.c
@@ -200,8 +200,7 @@ static int altera_gpio_direction_output(struct gpio_chip *gc,
 	return 0;
 }
 
-static void altera_gpio_irq_edge_handler(unsigned int irq,
-					struct irq_desc *desc)
+static void altera_gpio_irq_edge_handler(struct irq_desc *desc)
 {
 	struct altera_gpio_chip *altera_gc;
 	struct irq_chip *chip;
@@ -230,8 +229,7 @@ static void altera_gpio_irq_edge_handler(unsigned int irq,
 }
 
 
-static void altera_gpio_irq_leveL_high_handler(unsigned int irq,
-					      struct irq_desc *desc)
+static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
 {
 	struct altera_gpio_chip *altera_gc;
 	struct irq_chip *chip;
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 2e7a8c66fe57..6471892f4f83 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -427,7 +427,7 @@ static int bcm_kona_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 {
 	void __iomem *reg_base;
 	int bit, bank_id;
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 477d5b8616ab..31206ea4c84e 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -327,8 +327,9 @@ static struct irq_chip gpio_irqchip = {
 };
 
 static void
-gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+gpio_irq_handler(struct irq_desc *desc)
 {
+	unsigned irq = irq_desc_get_irq(desc);
 	struct davinci_gpio_regs __iomem *g;
 	u32 mask = 0xffff;
 	struct davinci_gpio_controller *d;
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 649be07a845d..bf7cb1be756d 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -147,7 +147,7 @@ static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
 	return ret;
 }
 
-static void dwapb_irq_handler(u32 irq, struct irq_desc *desc)
+static void dwapb_irq_handler(struct irq_desc *desc)
 {
 	struct dwapb_gpio *gpio = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 45684f36ddb1..03648a8a6f8e 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -78,7 +78,7 @@ static void ep93xx_gpio_int_debounce(unsigned int irq, bool enable)
 		EP93XX_GPIO_REG(int_debounce_register_offset[port]));
 }
 
-static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc)
 {
 	unsigned char status;
 	int i;
@@ -100,13 +100,14 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
 	}
 }
 
-static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc)
 {
 	/*
 	 * map discontiguous hw irq range to continuous sw irq range:
 	 *
 	 *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
 	 */
+	unsigned int irq = irq_desc_get_irq(desc);
 	int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
 	int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
 
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index aa28c65eb6b4..70097472b02c 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -301,7 +301,7 @@ static const struct pci_device_id intel_gpio_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
 
-static void intel_mid_irq_handler(unsigned irq, struct irq_desc *desc)
+static void intel_mid_irq_handler(struct irq_desc *desc)
 {
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
 	struct intel_mid_gpio *priv = to_intel_gpio_priv(gc);
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 127c755b38dc..23e884aefe36 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -234,7 +234,7 @@ static int lp_gpio_direction_output(struct gpio_chip *chip,
 	return 0;
 }
 
-static void lp_gpio_irq_handler(unsigned hwirq, struct irq_desc *desc)
+static void lp_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index a65b75161aa4..281dea4d2e39 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -185,7 +185,7 @@ static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 		return -ENXIO;
 }
 
-static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc)
+static void mpc8xxx_gpio_irq_cascade(struct irq_desc *desc)
 {
 	struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index 01acf0a8cdb1..35b3046d1c7d 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -232,7 +232,7 @@ static struct irq_chip msic_irqchip = {
 	.irq_bus_sync_unlock	= msic_bus_sync_unlock,
 };
 
-static void msic_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void msic_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
 	struct msic_gpio *mg = irq_data_get_irq_handler_data(data);
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 52ff18229fdc..f4a69e005409 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -313,7 +313,7 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
  * which have been set as summary IRQ lines and which are triggered,
  * and to call their interrupt handlers.
  */
-static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void msm_summary_irq_handler(struct irq_desc *desc)
 {
 	unsigned long i;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index a8c302ef7bc4..5b12549e3d6c 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -458,7 +458,7 @@ static int mvebu_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void mvebu_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct mvebu_gpio_chip *mvchip = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index f10948c04f7c..1f5186002326 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -272,7 +272,7 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
 }
 
 /* MX1 and MX3 has one interrupt *per* gpio port */
-static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx3_gpio_irq_handler(struct irq_desc *desc)
 {
 	u32 irq_stat;
 	struct mxc_gpio_port *port = irq_desc_get_handler_data(desc);
@@ -288,7 +288,7 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 }
 
 /* MX2 has one interrupt *for all* gpio ports */
-static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mx2_gpio_irq_handler(struct irq_desc *desc)
 {
 	u32 irq_msk, irq_stat;
 	struct mxc_gpio_port *port;
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 039c7d50e64f..e5b286e9f016 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -154,7 +154,7 @@ static void mxs_flip_edge(struct mxs_gpio_port *port, u32 gpio)
 }
 
 /* MXS has one interrupt *per* gpio port */
-static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void mxs_gpio_irq_handler(struct irq_desc *desc)
 {
 	u32 irq_stat;
 	struct mxs_gpio_port *port = irq_desc_get_handler_data(desc);
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index acbf3feff1e2..7f764d786efe 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -711,7 +711,7 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
  * line's interrupt handler has been run, we may miss some nested
  * interrupts.
  */
-static void omap_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void omap_gpio_irq_handler(struct irq_desc *desc)
 {
 	void __iomem *isr_reg = NULL;
 	u32 isr;
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 04756130437f..229ef653e0f8 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -187,7 +187,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
 	return 0;
 }
 
-static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
+static void pl061_irq_handler(struct irq_desc *desc)
 {
 	unsigned long pending;
 	int offset;
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index cdbbcf0faf9d..a6d51338b86e 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -401,7 +401,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
+static void pxa_gpio_demux_handler(struct irq_desc *desc)
 {
 	struct pxa_gpio_chip *c;
 	int loop, gpio, gpio_base, n;
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c
index bec397a60204..cde43049d5f6 100644
--- a/drivers/gpio/gpio-sa1100.c
+++ b/drivers/gpio/gpio-sa1100.c
@@ -173,9 +173,9 @@ static struct irq_domain *sa1100_gpio_irqdomain;
  * and call the handler.
  */
 static void
-sa1100_gpio_handler(unsigned int irq, struct irq_desc *desc)
+sa1100_gpio_handler(struct irq_desc *desc)
 {
-	unsigned int mask;
+	unsigned int mask, irq;
 
 	mask = GEDR;
 	do {
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 89ed8a56eb0b..bfd5f39d1bc3 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -266,7 +266,7 @@ static void tegra_gpio_irq_shutdown(struct irq_data *d)
 	gpiochip_unlock_as_irq(&tegra_gpio_chip, gpio);
 }
 
-static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void tegra_gpio_irq_handler(struct irq_desc *desc)
 {
 	int port;
 	int pin;
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index d4e8cb4f2e53..107094139ec4 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -192,13 +192,14 @@ out:
 	return ret;
 }
 
-static void timbgpio_irq(unsigned int irq, struct irq_desc *desc)
+static void timbgpio_irq(struct irq_desc *desc)
 {
 	struct timbgpio *tgpio = irq_desc_get_handler_data(desc);
+	struct irq_data *data = irq_desc_get_irq_data(desc);
 	unsigned long ipr;
 	int offset;
 
-	desc->irq_data.chip->irq_ack(irq_get_irq_data(irq));
+	data->chip->irq_ack(data);
 	ipr = ioread32(tgpio->membase + TGPIO_IPR);
 	iowrite32(ipr, tgpio->membase + TGPIO_ICR);
 
diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c
index 445660adc898..58dfa595dbd7 100644
--- a/drivers/gpio/gpio-tz1090.c
+++ b/drivers/gpio/gpio-tz1090.c
@@ -375,7 +375,7 @@ static int gpio_set_irq_wake(struct irq_data *data, unsigned int on)
 #define gpio_set_irq_wake NULL
 #endif
 
-static void tz1090_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+static void tz1090_gpio_irq_handler(struct irq_desc *desc)
 {
 	irq_hw_number_t hw;
 	unsigned int irq_stat, irq_no;
@@ -400,7 +400,7 @@ static void tz1090_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 				== IRQ_TYPE_EDGE_BOTH)
 			tz1090_gpio_irq_next_edge(bank, hw);
 
-		generic_handle_irq_desc(irq_no, child_desc);
+		generic_handle_irq_desc(child_desc);
 	}
 }
 
diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index fa344388f4da..18d0ae80dc4a 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -118,7 +118,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
 	return pinctrl_gpio_direction_output(chip->base + gpio);
 }
 
-static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
+static void vf610_gpio_irq_handler(struct irq_desc *desc)
 {
 	struct vf610_gpio_port *port = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 70e3a568b1cb..92d91d3b6dd7 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -495,7 +495,7 @@ static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio,
  * application for that pin.
  * Note: A bug is reported if no handler is set for the gpio pin.
  */
-static void zynq_gpio_irqhandler(unsigned int irq, struct irq_desc *desc)
+static void zynq_gpio_irqhandler(struct irq_desc *desc)
 {
 	u32 int_sts, int_enb;
 	unsigned int bank_num;
-- 
1.7.10.4

Re: [RFC v1 08/25] mfd: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[Lee Jones]

On Wed, 20 May 2015, Jiang Liu wrote:

> Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
> already have a pointer to corresponding irq_desc.
> 
> Do the same thing to avoid pattern "irq_get_chip_data(data->irq)".
> 
> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
> ---
>  drivers/mfd/ezx-pcap.c    |    2 +-
>  drivers/mfd/max8997-irq.c |    8 ++++----
>  drivers/mfd/mt6397-core.c |    8 ++++----
>  drivers/mfd/t7l66xb.c     |    2 +-
>  drivers/mfd/tc6393xb.c    |    2 +-
>  drivers/mfd/twl6030-irq.c |    2 +-
>  6 files changed, 12 insertions(+), 12 deletions(-)

Again, so long as this has been properly tested:

Acked-by: Lee Jones <lee.jones@linaro.org>

> diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
> index 5991faddd3c6..e5f4ffaa5414 100644
> --- a/drivers/mfd/ezx-pcap.c
> +++ b/drivers/mfd/ezx-pcap.c
> @@ -207,7 +207,7 @@ static void pcap_isr_work(struct work_struct *work)
>  
>  static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
>  {
> -	struct pcap_chip *pcap = irq_get_handler_data(irq);
> +	struct pcap_chip *pcap = irq_desc_get_handler_data(desc);
>  
>  	desc->irq_data.chip->irq_ack(&desc->irq_data);
>  	queue_work(pcap->workqueue, &pcap->isr_work);
> diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c
> index 43fa61413e93..381738b477f8 100644
> --- a/drivers/mfd/max8997-irq.c
> +++ b/drivers/mfd/max8997-irq.c
> @@ -113,14 +113,14 @@ static const struct max8997_irq_data max8997_irqs[] = {
>  
>  static void max8997_irq_lock(struct irq_data *data)
>  {
> -	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
> +	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
>  
>  	mutex_lock(&max8997->irqlock);
>  }
>  
>  static void max8997_irq_sync_unlock(struct irq_data *data)
>  {
> -	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
> +	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
>  	int i;
>  
>  	for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
> @@ -148,7 +148,7 @@ irq_to_max8997_irq(struct max8997_dev *max8997, int irq)
>  
>  static void max8997_irq_mask(struct irq_data *data)
>  {
> -	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
> +	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
>  	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
>  								data->irq);
>  
> @@ -157,7 +157,7 @@ static void max8997_irq_mask(struct irq_data *data)
>  
>  static void max8997_irq_unmask(struct irq_data *data)
>  {
> -	struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
> +	struct max8997_dev *max8997 = irq_data_get_irq_chip_data(data);
>  	const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
>  								data->irq);
>  
> diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
> index 09bc7804952a..dab325b9d0df 100644
> --- a/drivers/mfd/mt6397-core.c
> +++ b/drivers/mfd/mt6397-core.c
> @@ -39,14 +39,14 @@ static const struct mfd_cell mt6397_devs[] = {
>  
>  static void mt6397_irq_lock(struct irq_data *data)
>  {
> -	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
> +	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
>  
>  	mutex_lock(&mt6397->irqlock);
>  }
>  
>  static void mt6397_irq_sync_unlock(struct irq_data *data)
>  {
> -	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
> +	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
>  
>  	regmap_write(mt6397->regmap, MT6397_INT_CON0, mt6397->irq_masks_cur[0]);
>  	regmap_write(mt6397->regmap, MT6397_INT_CON1, mt6397->irq_masks_cur[1]);
> @@ -56,7 +56,7 @@ static void mt6397_irq_sync_unlock(struct irq_data *data)
>  
>  static void mt6397_irq_disable(struct irq_data *data)
>  {
> -	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
> +	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
>  	int shift = data->hwirq & 0xf;
>  	int reg = data->hwirq >> 4;
>  
> @@ -65,7 +65,7 @@ static void mt6397_irq_disable(struct irq_data *data)
>  
>  static void mt6397_irq_enable(struct irq_data *data)
>  {
> -	struct mt6397_chip *mt6397 = irq_get_chip_data(data->irq);
> +	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
>  	int shift = data->hwirq & 0xf;
>  	int reg = data->hwirq >> 4;
>  
> diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
> index c09fb5dccd50..b752ca2be549 100644
> --- a/drivers/mfd/t7l66xb.c
> +++ b/drivers/mfd/t7l66xb.c
> @@ -187,7 +187,7 @@ static struct mfd_cell t7l66xb_cells[] = {
>  /* Handle the T7L66XB interrupt mux */
>  static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc)
>  {
> -	struct t7l66xb *t7l66xb = irq_get_handler_data(irq);
> +	struct t7l66xb *t7l66xb = irq_desc_get_handler_data(desc);
>  	unsigned int isr;
>  	unsigned int i, irq_base;
>  
> diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
> index 63458b39a97d..d21253a51cff 100644
> --- a/drivers/mfd/tc6393xb.c
> +++ b/drivers/mfd/tc6393xb.c
> @@ -525,7 +525,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
>  static void
>  tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
>  {
> -	struct tc6393xb *tc6393xb = irq_get_handler_data(irq);
> +	struct tc6393xb *tc6393xb = irq_desc_get_handler_data(desc);
>  	unsigned int isr;
>  	unsigned int i, irq_base;
>  
> diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
> index 2807e1a95663..5b8cd5cd42cf 100644
> --- a/drivers/mfd/twl6030-irq.c
> +++ b/drivers/mfd/twl6030-irq.c
> @@ -231,7 +231,7 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data)
>  
>  static int twl6030_irq_set_wake(struct irq_data *d, unsigned int on)
>  {
> -	struct twl6030_irq *pdata = irq_get_chip_data(d->irq);
> +	struct twl6030_irq *pdata = irq_data_get_irq_chip_data(d);
>  
>  	if (on)
>  		atomic_inc(&pdata->wakeirqs);

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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Re: [RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Thomas Gleixner]

On Wed, 20 May 2015, Jiang Liu wrote:
> -static void locomo_handler(unsigned int irq, struct irq_desc *desc)
> +static void locomo_handler(struct irq_desc *desc)
>  {
>  	struct locomo *lchip = irq_desc_get_chip_data(desc);
> +	unsigned int irq;
>  	int req, i;

That leaves irq unitialized ....

Thanks,

	tglx

Re: [RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Jiang Liu]

On 2015/5/20 23:28, Thomas Gleixner wrote:
> On Wed, 20 May 2015, Jiang Liu wrote:
>> -static void locomo_handler(unsigned int irq, struct irq_desc *desc)
>> +static void locomo_handler(struct irq_desc *desc)
>>  {
>>  	struct locomo *lchip = irq_desc_get_chip_data(desc);
>> +	unsigned int irq;
>>  	int req, i;
> 
> That leaves irq unitialized ....
That should be OK, 'irq' here is just a local variable.
Actually it may be changed as:
        if (req) {
                /* generate the next interrupt(s) */
-                irq = lchip->irq_base;
+                unsigned int irq = lchip->irq_base;
                for (i = 0; i <= 3; i++, irq++) {
                        if (req & (0x0100 << i)) {
                                generic_handle_irq(irq);
                        }

                }
        }

> 
> Thanks,
> 
> 	tglx
> 

Re: [RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Hans Ulli Kroll]

On Wed, 20 May 2015, Jiang Liu wrote:

> Now most IRQ flow handlers make no use of the first parameter 'irq'.
> And for those who do make use of 'irq', we could easily get the irq
> number through irq_desc->irq_data->irq. So kill the first parameter
> 'irq' of irq_flow_handler_t.
> 
> To ease review, I have split the changes into several parts, though
> they should be merge as one to support bisecting.
> 
> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
> ---
>  arch/arm/common/it8152.c               |    2 +-
>  arch/arm/common/locomo.c               |    3 ++-
>  arch/arm/common/sa1111.c               |    4 ++--
>  arch/arm/include/asm/hardware/it8152.h |    2 +-
>  arch/arm/include/asm/mach/irq.h        |    4 ++--
>  arch/arm/mach-dove/irq.c               |    5 +++--
>  arch/arm/mach-footbridge/isa-irq.c     |    4 ++--
>  arch/arm/mach-gemini/gpio.c            |    2 +-
>  arch/arm/mach-imx/3ds_debugboard.c     |    2 +-
>  arch/arm/mach-imx/mach-mx31ads.c       |    2 +-
>  arch/arm/mach-iop13xx/msi.c            |    2 +-
>  arch/arm/mach-lpc32xx/irq.c            |    4 ++--
>  arch/arm/mach-omap1/fpga.c             |    2 +-
>  arch/arm/mach-omap2/prm_common.c       |    2 +-
>  arch/arm/mach-pxa/balloon3.c           |    3 ++-
>  arch/arm/mach-pxa/cm-x2xx-pci.c        |    4 ++--
>  arch/arm/mach-pxa/lpd270.c             |    3 ++-
>  arch/arm/mach-pxa/pcm990-baseboard.c   |    1 +
>  arch/arm/mach-pxa/viper.c              |    3 ++-
>  arch/arm/mach-pxa/zeus.c               |    3 ++-
>  arch/arm/mach-rpc/ecard.c              |    2 +-
>  arch/arm/mach-s3c64xx/common.c         |    8 ++++----
>  arch/arm/mach-sa1100/neponset.c        |    2 +-
>  arch/arm/plat-orion/gpio.c             |    2 +-
>  24 files changed, 39 insertions(+), 32 deletions(-)
> 
> diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
> index 5114b68e99d5..aaa206181f92 100644
> --- a/arch/arm/common/it8152.c
> +++ b/arch/arm/common/it8152.c
> @@ -95,7 +95,7 @@ void it8152_init_irq(void)
>  	}
>  }
>  
> -void it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
> +void it8152_irq_demux(struct irq_desc *desc)
>  {
>         int bits_pd, bits_lp, bits_ld;
>         int i;
> diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
> index 02af4a07ceca..99d4535d7cc6 100644
> --- a/arch/arm/common/locomo.c
> +++ b/arch/arm/common/locomo.c
> @@ -138,9 +138,10 @@ static struct locomo_dev_info locomo_devices[] = {
>  	},
>  };
>  
> -static void locomo_handler(unsigned int irq, struct irq_desc *desc)
> +static void locomo_handler(struct irq_desc *desc)
>  {
>  	struct locomo *lchip = irq_desc_get_chip_data(desc);
> +	unsigned int irq;
>  	int req, i;
>  
>  	/* Acknowledge the parent IRQ */
> diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
> index 0d0844fa54c2..762dfe7081f0 100644
> --- a/arch/arm/common/sa1111.c
> +++ b/arch/arm/common/sa1111.c
> @@ -197,7 +197,7 @@ static struct sa1111_dev_info sa1111_devices[] = {
>   * will call us again if there are more interrupts to process.
>   */
>  static void
> -sa1111_irq_handler(unsigned int irq, struct irq_desc *desc)
> +sa1111_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned int stat0, stat1, i;
>  	struct sa1111 *sachip = irq_desc_get_handler_data(desc);
> @@ -213,7 +213,7 @@ sa1111_irq_handler(unsigned int irq, struct irq_desc *desc)
>  	sa1111_writel(stat1, mapbase + SA1111_INTSTATCLR1);
>  
>  	if (stat0 == 0 && stat1 == 0) {
> -		do_bad_IRQ(irq, desc);
> +		do_bad_IRQ(desc);
>  		return;
>  	}
>  
> diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
> index d36a73d7c0e8..076777ff3daa 100644
> --- a/arch/arm/include/asm/hardware/it8152.h
> +++ b/arch/arm/include/asm/hardware/it8152.h
> @@ -106,7 +106,7 @@ extern void __iomem *it8152_base_address;
>  struct pci_dev;
>  struct pci_sys_data;
>  
> -extern void it8152_irq_demux(unsigned int irq, struct irq_desc *desc);
> +extern void it8152_irq_demux(struct irq_desc *desc);
>  extern void it8152_init_irq(void);
>  extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
>  extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
> diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
> index 2092ee1e1300..4703e00283db 100644
> --- a/arch/arm/include/asm/mach/irq.h
> +++ b/arch/arm/include/asm/mach/irq.h
> @@ -23,10 +23,10 @@ extern int show_fiq_list(struct seq_file *, int);
>  /*
>   * This is for easy migration, but should be changed in the source
>   */
> -#define do_bad_IRQ(irq,desc)				\
> +#define do_bad_IRQ(desc)				\
>  do {							\
>  	raw_spin_lock(&desc->lock);			\
> -	handle_bad_irq(irq, desc);			\
> +	handle_bad_irq(desc);			\
>  	raw_spin_unlock(&desc->lock);			\
>  } while(0)
>  
> diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c
> index 4a5a7aedcb76..30140cbdb249 100644
> --- a/arch/arm/mach-dove/irq.c
> +++ b/arch/arm/mach-dove/irq.c
> @@ -69,13 +69,14 @@ static struct irq_chip pmu_irq_chip = {
>  	.irq_ack	= pmu_irq_ack,
>  };
>  
> -static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void pmu_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned long cause = readl(PMU_INTERRUPT_CAUSE);
> +	unsigned int irq;
>  
>  	cause &= readl(PMU_INTERRUPT_MASK);
>  	if (cause == 0) {
> -		do_bad_IRQ(irq, desc);
> +		do_bad_IRQ(desc);
>  		return;
>  	}
>  
> diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
> index c3a0abbc9049..f78e46662447 100644
> --- a/arch/arm/mach-footbridge/isa-irq.c
> +++ b/arch/arm/mach-footbridge/isa-irq.c
> @@ -88,12 +88,12 @@ static struct irq_chip isa_hi_chip = {
>  };
>  
>  static void
> -isa_irq_handler(unsigned int irq, struct irq_desc *desc)
> +isa_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned int isa_irq = *(unsigned char *)PCIIACK_BASE;
>  
>  	if (isa_irq < _ISA_IRQ(0) || isa_irq >= _ISA_IRQ(16)) {
> -		do_bad_IRQ(isa_irq, desc);
> +		do_bad_IRQ(desc);
>  		return;
>  	}
>  
> diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
> index f8cb5710d6ee..713f655bcc74 100644
> --- a/arch/arm/mach-gemini/gpio.c
> +++ b/arch/arm/mach-gemini/gpio.c
> @@ -126,7 +126,7 @@ static int gpio_set_irq_type(struct irq_data *d, unsigned int type)
>  	return 0;
>  }
>  
> -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void gpio_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned int port = (unsigned int)irq_desc_get_handler_data(desc);
>  	unsigned int gpio_irq_no, irq_stat;
> diff --git a/arch/arm/mach-imx/3ds_debugboard.c b/arch/arm/mach-imx/3ds_debugboard.c
> index 134377352966..d93d3337b579 100644
> --- a/arch/arm/mach-imx/3ds_debugboard.c
> +++ b/arch/arm/mach-imx/3ds_debugboard.c
> @@ -85,7 +85,7 @@ static struct platform_device smsc_lan9217_device = {
>  	.resource = smsc911x_resources,
>  };
>  
> -static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc)
> +static void mxc_expio_irq_handler(struct irq_desc *desc)
>  {
>  	u32 imr_val;
>  	u32 int_valid;
> diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
> index d08c37c696f6..07aef418a0e1 100644
> --- a/arch/arm/mach-imx/mach-mx31ads.c
> +++ b/arch/arm/mach-imx/mach-mx31ads.c
> @@ -154,7 +154,7 @@ static inline void mxc_init_imx_uart(void)
>  	imx31_add_imx_uart0(&uart_pdata);
>  }
>  
> -static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
> +static void mx31ads_expio_irq_handler(struct irq_desc *desc)
>  {
>  	u32 imr_val;
>  	u32 int_valid;
> diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c
> index 9f89e76dfbb9..f6235b28578c 100644
> --- a/arch/arm/mach-iop13xx/msi.c
> +++ b/arch/arm/mach-iop13xx/msi.c
> @@ -91,7 +91,7 @@ static void (*write_imipr[])(u32) = {
>  	write_imipr_3,
>  };
>  
> -static void iop13xx_msi_handler(unsigned int irq, struct irq_desc *desc)
> +static void iop13xx_msi_handler(struct irq_desc *desc)
>  {
>  	int i, j;
>  	unsigned long status;
> diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
> index 9ecb8f9c4ef5..f361fed99105 100644
> --- a/arch/arm/mach-lpc32xx/irq.c
> +++ b/arch/arm/mach-lpc32xx/irq.c
> @@ -370,7 +370,7 @@ static struct irq_chip lpc32xx_irq_chip = {
>  	.irq_set_wake = lpc32xx_irq_wake
>  };
>  
> -static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
> +static void lpc32xx_sic1_handler(struct irq_desc *desc)
>  {
>  	unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC1_BASE));
>  
> @@ -383,7 +383,7 @@ static void lpc32xx_sic1_handler(unsigned int irq, struct irq_desc *desc)
>  	}
>  }
>  
> -static void lpc32xx_sic2_handler(unsigned int irq, struct irq_desc *desc)
> +static void lpc32xx_sic2_handler(struct irq_desc *desc)
>  {
>  	unsigned long ints = __raw_readl(LPC32XX_INTC_STAT(LPC32XX_SIC2_BASE));
>  
> diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
> index 3c0e42219200..374bccf5ce24 100644
> --- a/arch/arm/mach-omap1/fpga.c
> +++ b/arch/arm/mach-omap1/fpga.c
> @@ -87,7 +87,7 @@ static void fpga_mask_ack_irq(struct irq_data *d)
>  	fpga_ack_irq(d);
>  }
>  
> -static void innovator_fpga_IRQ_demux(unsigned int irq, struct irq_desc *desc)
> +static void innovator_fpga_IRQ_demux(struct irq_desc *desc)
>  {
>  	u32 stat;
>  	int fpga_irq;
> diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
> index 7add7994dbfc..6cfc1e54d41f 100644
> --- a/arch/arm/mach-omap2/prm_common.c
> +++ b/arch/arm/mach-omap2/prm_common.c
> @@ -102,7 +102,7 @@ static void omap_prcm_events_filter_priority(unsigned long *events,
>   * dispatched accordingly. Clearing of the wakeup events should be
>   * done by the SoC specific individual handlers.
>   */
> -static void omap_prcm_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void omap_prcm_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned long pending[OMAP_PRCM_MAX_NR_PENDING_REG];
>  	unsigned long priority_pending[OMAP_PRCM_MAX_NR_PENDING_REG];
> diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
> index d897292712eb..506365cdd58b 100644
> --- a/arch/arm/mach-pxa/balloon3.c
> +++ b/arch/arm/mach-pxa/balloon3.c
> @@ -496,8 +496,9 @@ static struct irq_chip balloon3_irq_chip = {
>  	.irq_unmask	= balloon3_unmask_irq,
>  };
>  
> -static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void balloon3_irq_handler(struct irq_desc *desc)
>  {
> +	unsigned int irq;
>  	unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
>  					balloon3_irq_enabled;
>  	do {
> diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c
> index d8f816c24a2f..3221ae15bef7 100644
> --- a/arch/arm/mach-pxa/cm-x2xx-pci.c
> +++ b/arch/arm/mach-pxa/cm-x2xx-pci.c
> @@ -29,12 +29,12 @@
>  void __iomem *it8152_base_address;
>  static int cmx2xx_it8152_irq_gpio;
>  
> -static void cmx2xx_it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
> +static void cmx2xx_it8152_irq_demux(struct irq_desc *desc)
>  {
>  	/* clear our parent irq */
>  	desc->irq_data.chip->irq_ack(&desc->irq_data);
>  
> -	it8152_irq_demux(irq, desc);
> +	it8152_irq_demux(desc);
>  }
>  
>  void __cmx2xx_pci_init_irq(int irq_gpio)
> diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
> index eaee2c20b189..cbf00f51808f 100644
> --- a/arch/arm/mach-pxa/lpd270.c
> +++ b/arch/arm/mach-pxa/lpd270.c
> @@ -120,9 +120,10 @@ static struct irq_chip lpd270_irq_chip = {
>  	.irq_unmask	= lpd270_unmask_irq,
>  };
>  
> -static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void lpd270_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned long pending;
> +	unsigned int irq;
>  
>  	pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
>  	do {
> diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
> index 2897da2a5df6..0d8331f8536e 100644
> --- a/arch/arm/mach-pxa/pcm990-baseboard.c
> +++ b/arch/arm/mach-pxa/pcm990-baseboard.c
> @@ -287,6 +287,7 @@ static struct irq_chip pcm990_irq_chip = {
>  static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc)
>  {
>  	unsigned long pending;
> +	unsigned int irq;
>  
>  	pending = ~pcm990_cpld_readb(PCM990_CTRL_INTSETCLR);
>  	pending &= pcm990_irq_enabled;
> diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
> index de3b08073fe7..bd52fb914d6a 100644
> --- a/arch/arm/mach-pxa/viper.c
> +++ b/arch/arm/mach-pxa/viper.c
> @@ -276,9 +276,10 @@ static inline unsigned long viper_irq_pending(void)
>  			viper_irq_enabled_mask;
>  }
>  
> -static void viper_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void viper_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned long pending;
> +	unsigned int irq;
>  
>  	pending = viper_irq_pending();
>  	do {
> diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
> index ac2ae5c71ab4..7ffff0b424c2 100644
> --- a/arch/arm/mach-pxa/zeus.c
> +++ b/arch/arm/mach-pxa/zeus.c
> @@ -105,9 +105,10 @@ static inline unsigned long zeus_irq_pending(void)
>  	return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask;
>  }
>  
> -static void zeus_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void zeus_irq_handler(struct irq_desc *desc)
>  {
>  	unsigned long pending;
> +	unsigned int irq;
>  
>  	pending = zeus_irq_pending();
>  	do {
> diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
> index fcb1d59f7aec..b7074cd5ebfd 100644
> --- a/arch/arm/mach-rpc/ecard.c
> +++ b/arch/arm/mach-rpc/ecard.c
> @@ -552,7 +552,7 @@ static void ecard_check_lockup(struct irq_desc *desc)
>  }
>  
>  static void
> -ecard_irq_handler(unsigned int irq, struct irq_desc *desc)
> +ecard_irq_handler(struct irq_desc *desc)
>  {
>  	ecard_t *ec;
>  	int called = 0;
> diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
> index 16547f2641a3..5c9ca33f61e5 100644
> --- a/arch/arm/mach-s3c64xx/common.c
> +++ b/arch/arm/mach-s3c64xx/common.c
> @@ -389,22 +389,22 @@ static inline void s3c_irq_demux_eint(unsigned int start, unsigned int end)
>  	}
>  }
>  
> -static void s3c_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
> +static void s3c_irq_demux_eint0_3(struct irq_desc *desc)
>  {
>  	s3c_irq_demux_eint(0, 3);
>  }
>  
> -static void s3c_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
> +static void s3c_irq_demux_eint4_11(struct irq_desc *desc)
>  {
>  	s3c_irq_demux_eint(4, 11);
>  }
>  
> -static void s3c_irq_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
> +static void s3c_irq_demux_eint12_19(struct irq_desc *desc)
>  {
>  	s3c_irq_demux_eint(12, 19);
>  }
>  
> -static void s3c_irq_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
> +static void s3c_irq_demux_eint20_27(struct irq_desc *desc)
>  {
>  	s3c_irq_demux_eint(20, 27);
>  }
> diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
> index af868d258e66..cc73c885d6a1 100644
> --- a/arch/arm/mach-sa1100/neponset.c
> +++ b/arch/arm/mach-sa1100/neponset.c
> @@ -166,7 +166,7 @@ static struct sa1100_port_fns neponset_port_fns = {
>   * ensure that the IRQ signal is deasserted before returning.  This
>   * is rather unfortunate.
>   */
> -static void neponset_irq_handler(unsigned int irq, struct irq_desc *desc)
> +static void neponset_irq_handler(struct irq_desc *desc)
>  {
>  	struct neponset_drvdata *d = irq_desc_get_handler_data(desc);
>  	unsigned int irr;
> diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
> index caba04340619..dc91cfa5483f 100644
> --- a/arch/arm/plat-orion/gpio.c
> +++ b/arch/arm/plat-orion/gpio.c
> @@ -407,7 +407,7 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type)
>  	return 0;
>  }
>  
> -static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
> +static void gpio_irq_handler(struct irq_desc *desc)
>  {
>  	struct orion_gpio_chip *ochip = irq_desc_get_handler_data(desc);
>  	u32 cause, type;
> -- 
> 1.7.10.4
> 
> 

for the mach-gemini part

Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>

Re: [RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Thomas Gleixner]

On Wed, 20 May 2015, Jiang Liu wrote:

> On 2015/5/20 23:28, Thomas Gleixner wrote:
> > On Wed, 20 May 2015, Jiang Liu wrote:
> >> -static void locomo_handler(unsigned int irq, struct irq_desc *desc)
> >> +static void locomo_handler(struct irq_desc *desc)
> >>  {
> >>  	struct locomo *lchip = irq_desc_get_chip_data(desc);
> >> +	unsigned int irq;
> >>  	int req, i;
> > 
> > That leaves irq unitialized ....
> That should be OK, 'irq' here is just a local variable.
> Actually it may be changed as:
>         if (req) {
>                 /* generate the next interrupt(s) */
> -                irq = lchip->irq_base;
> +                unsigned int irq = lchip->irq_base;

Indeed. 

Re: [RFC v1 15/25] genirq: Kill the first parameter 'irq' of irq_flow_handler_t

[Robert Jarzmik]

Jiang Liu <jiang.liu@linux.intel.com> writes:

> diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
> index 2897da2a5df6..0d8331f8536e 100644
> --- a/arch/arm/mach-pxa/pcm990-baseboard.c
> +++ b/arch/arm/mach-pxa/pcm990-baseboard.c
> @@ -287,6 +287,7 @@ static struct irq_chip pcm990_irq_chip = {
>  static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc)
>  {
>  	unsigned long pending;
> +	unsigned int irq;
That doesn't look good, double irq definition.

Cheers.

-- 
Robert

Re: [RFC v1 05/25] gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[Linus Walleij]

On Wed, May 20, 2015 at 11:59 AM, Jiang Liu <jiang.liu@linux.intel.com> wrote:

> Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
> already have a pointer to corresponding irq_desc.
>
> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>

Acked-by: Linus Walleij <linus.walleij@linaro.org>

Are there dependencies on this patch or can I just apply it
directly to the GPIO tree?

Yours,
Linus Walleij

Re: [RFC v1 05/25] gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

[Jiang Liu]

On 2015/6/1 20:45, Linus Walleij wrote:
> On Wed, May 20, 2015 at 11:59 AM, Jiang Liu <jiang.liu@linux.intel.com> wrote:
> 
>> Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
>> already have a pointer to corresponding irq_desc.
>>
>> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
> 
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
> 
> Are there dependencies on this patch or can I just apply it
> directly to the GPIO tree?
Hi Linus,
	Thanks for review.
	There's a very long dependency list of this patch set,
so it would be safer to merge this patch set altogether through
the irq tree if that works:)
Thanks!
Gerry

> 
> Yours,
> Linus Walleij
>