IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

64 files changed, 157 insertions, 239 deletions

diff --git a/drivers/input/joystick/amijoy.c b/drivers/input/joystick/amijoy.c
index 7249d324297..650acf3a30b 100644
--- a/drivers/input/joystick/amijoy.c
+++ b/drivers/input/joystick/amijoy.c
@@ -57,7 +57,7 @@ static DEFINE_MUTEX(amijoy_mutex);
 static struct input_dev *amijoy_dev[2];
 static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };
 
-static irqreturn_t amijoy_interrupt(int irq, void *dummy, struct pt_regs *fp)
+static irqreturn_t amijoy_interrupt(int irq, void *dummy)
 {
 	int i, data = 0, button = 0;
 
@@ -69,8 +69,6 @@ static irqreturn_t amijoy_interrupt(int irq, void *dummy, struct pt_regs *fp)
 				case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
 			}
 
-			input_regs(amijoy_dev[i], fp);
-
 			input_report_key(amijoy_dev[i], BTN_TRIGGER, button);
 
 			input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
index 8632d47a7fb..808f05932a6 100644
--- a/drivers/input/joystick/iforce/iforce-packets.c
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -155,7 +155,7 @@ static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
 	return -1;
 }
 
-void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data, struct pt_regs *regs)
+void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data)
 {
 	struct input_dev *dev = iforce->dev;
 	int i;
@@ -183,9 +183,6 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data,
 
 		case 0x01:	/* joystick position data */
 		case 0x03:	/* wheel position data */
-
-			input_regs(dev, regs);
-
 			if (HI(cmd) == 1) {
 				input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0]));
 				input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2]));
@@ -224,7 +221,6 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data,
 			break;
 
 		case 0x02:	/* status report */
-			input_regs(dev, regs);
 			input_report_key(dev, BTN_DEAD, data[0] & 0x02);
 			input_sync(dev);
 
diff --git a/drivers/input/joystick/iforce/iforce-serio.c b/drivers/input/joystick/iforce/iforce-serio.c
index 64a78c51548..ca08f45c204 100644
--- a/drivers/input/joystick/iforce/iforce-serio.c
+++ b/drivers/input/joystick/iforce/iforce-serio.c
@@ -81,7 +81,7 @@ static void iforce_serio_write_wakeup(struct serio *serio)
 }
 
 static irqreturn_t iforce_serio_irq(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct iforce *iforce = serio_get_drvdata(serio);
 
@@ -115,7 +115,7 @@ static irqreturn_t iforce_serio_irq(struct serio *serio,
 	}
 
 	if (iforce->idx == iforce->len) {
-		iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data, regs);
+		iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data);
 		iforce->pkt = 0;
 		iforce->id  = 0;
 		iforce->len = 0;
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
index fe79d158456..105112fb7b5 100644
--- a/drivers/input/joystick/iforce/iforce-usb.c
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -74,7 +74,7 @@ void iforce_usb_xmit(struct iforce *iforce)
 	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
 }
 
-static void iforce_usb_irq(struct urb *urb, struct pt_regs *regs)
+static void iforce_usb_irq(struct urb *urb)
 {
 	struct iforce *iforce = urb->context;
 	int status;
@@ -96,7 +96,7 @@ static void iforce_usb_irq(struct urb *urb, struct pt_regs *regs)
 	}
 
 	iforce_process_packet(iforce,
-		(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1, regs);
+		(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
 
 exit:
 	status = usb_submit_urb (urb, GFP_ATOMIC);
@@ -105,7 +105,7 @@ exit:
 		     __FUNCTION__, status);
 }
 
-static void iforce_usb_out(struct urb *urb, struct pt_regs *regs)
+static void iforce_usb_out(struct urb *urb)
 {
 	struct iforce *iforce = urb->context;
 
@@ -119,7 +119,7 @@ static void iforce_usb_out(struct urb *urb, struct pt_regs *regs)
 	wake_up(&iforce->wait);
 }
 
-static void iforce_usb_ctrl(struct urb *urb, struct pt_regs *regs)
+static void iforce_usb_ctrl(struct urb *urb)
 {
 	struct iforce *iforce = urb->context;
 	if (urb->status) return;
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
index 947df273984..ffaeaefa1a4 100644
--- a/drivers/input/joystick/iforce/iforce.h
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -160,7 +160,7 @@ void iforce_delete_device(struct iforce *iforce);
 
 /* iforce-packets.c */
 int iforce_control_playback(struct iforce*, u16 id, unsigned int);
-void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data, struct pt_regs *regs);
+void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
 int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
 void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
 int iforce_get_id_packet(struct iforce *iforce, char *packet);
diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c
index 168b1061a03..e3d19444ba2 100644
--- a/drivers/input/joystick/magellan.c
+++ b/drivers/input/joystick/magellan.c
@@ -82,7 +82,7 @@ static int magellan_crunch_nibbles(unsigned char *data, int count)
 	return 0;
 }
 
-static void magellan_process_packet(struct magellan* magellan, struct pt_regs *regs)
+static void magellan_process_packet(struct magellan* magellan)
 {
 	struct input_dev *dev = magellan->dev;
 	unsigned char *data = magellan->data;
@@ -90,8 +90,6 @@ static void magellan_process_packet(struct magellan* magellan, struct pt_regs *r
 
 	if (!magellan->idx) return;
 
-	input_regs(dev, regs);
-
 	switch (magellan->data[0]) {
 
 		case 'd':				/* Axis data */
@@ -115,12 +113,12 @@ static void magellan_process_packet(struct magellan* magellan, struct pt_regs *r
 }
 
 static irqreturn_t magellan_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct magellan* magellan = serio_get_drvdata(serio);
 
 	if (data == '\r') {
-		magellan_process_packet(magellan, regs);
+		magellan_process_packet(magellan);
 		magellan->idx = 0;
 	} else {
 		if (magellan->idx < MAGELLAN_MAX_LENGTH)
diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c
index 7a19ee05297..2a9808cf826 100644
--- a/drivers/input/joystick/spaceball.c
+++ b/drivers/input/joystick/spaceball.c
@@ -82,7 +82,7 @@ struct spaceball {
  * SpaceBall.
  */
 
-static void spaceball_process_packet(struct spaceball* spaceball, struct pt_regs *regs)
+static void spaceball_process_packet(struct spaceball* spaceball)
 {
 	struct input_dev *dev = spaceball->dev;
 	unsigned char *data = spaceball->data;
@@ -90,8 +90,6 @@ static void spaceball_process_packet(struct spaceball* spaceball, struct pt_regs
 
 	if (spaceball->idx < 2) return;
 
-	input_regs(dev, regs);
-
 	switch (spaceball->data[0]) {
 
 		case 'D':					/* Ball data */
@@ -151,13 +149,13 @@ static void spaceball_process_packet(struct spaceball* spaceball, struct pt_regs
  */
 
 static irqreturn_t spaceball_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct spaceball *spaceball = serio_get_drvdata(serio);
 
 	switch (data) {
 		case 0xd:
-			spaceball_process_packet(spaceball, regs);
+			spaceball_process_packet(spaceball);
 			spaceball->idx = 0;
 			spaceball->escape = 0;
 			break;
diff --git a/drivers/input/joystick/spaceorb.c b/drivers/input/joystick/spaceorb.c
index 3e2782e7983..c4db0247c5f 100644
--- a/drivers/input/joystick/spaceorb.c
+++ b/drivers/input/joystick/spaceorb.c
@@ -74,7 +74,7 @@ static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive
  * SpaceOrb.
  */
 
-static void spaceorb_process_packet(struct spaceorb *spaceorb, struct pt_regs *regs)
+static void spaceorb_process_packet(struct spaceorb *spaceorb)
 {
 	struct input_dev *dev = spaceorb->dev;
 	unsigned char *data = spaceorb->data;
@@ -86,8 +86,6 @@ static void spaceorb_process_packet(struct spaceorb *spaceorb, struct pt_regs *r
 	for (i = 0; i < spaceorb->idx; i++) c ^= data[i];
 	if (c) return;
 
-	input_regs(dev, regs);
-
 	switch (data[0]) {
 
 		case 'R':				/* Reset packet */
@@ -131,12 +129,12 @@ static void spaceorb_process_packet(struct spaceorb *spaceorb, struct pt_regs *r
 }
 
 static irqreturn_t spaceorb_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct spaceorb* spaceorb = serio_get_drvdata(serio);
 
 	if (~data & 0x80) {
-		if (spaceorb->idx) spaceorb_process_packet(spaceorb, regs);
+		if (spaceorb->idx) spaceorb_process_packet(spaceorb);
 		spaceorb->idx = 0;
 	}
 	if (spaceorb->idx < SPACEORB_MAX_LENGTH)
diff --git a/drivers/input/joystick/stinger.c b/drivers/input/joystick/stinger.c
index 011ec4858e1..1ffb0322331 100644
--- a/drivers/input/joystick/stinger.c
+++ b/drivers/input/joystick/stinger.c
@@ -64,15 +64,13 @@ struct stinger {
  * Stinger. It updates the data accordingly.
  */
 
-static void stinger_process_packet(struct stinger *stinger, struct pt_regs *regs)
+static void stinger_process_packet(struct stinger *stinger)
 {
 	struct input_dev *dev = stinger->dev;
 	unsigned char *data = stinger->data;
 
 	if (!stinger->idx) return;
 
-	input_regs(dev, regs);
-
 	input_report_key(dev, BTN_A,	  ((data[0] & 0x20) >> 5));
 	input_report_key(dev, BTN_B,	  ((data[0] & 0x10) >> 4));
 	input_report_key(dev, BTN_C,	  ((data[0] & 0x08) >> 3));
@@ -99,7 +97,7 @@ static void stinger_process_packet(struct stinger *stinger, struct pt_regs *regs
  */
 
 static irqreturn_t stinger_interrupt(struct serio *serio,
-	unsigned char data, unsigned int flags, struct pt_regs *regs)
+	unsigned char data, unsigned int flags)
 {
 	struct stinger *stinger = serio_get_drvdata(serio);
 
@@ -109,7 +107,7 @@ static irqreturn_t stinger_interrupt(struct serio *serio,
 		stinger->data[stinger->idx++] = data;
 
 	if (stinger->idx == 4) {
-		stinger_process_packet(stinger, regs);
+		stinger_process_packet(stinger);
 		stinger->idx = 0;
 	}
 
diff --git a/drivers/input/joystick/twidjoy.c b/drivers/input/joystick/twidjoy.c
index 076f237d965..49085df2d63 100644
--- a/drivers/input/joystick/twidjoy.c
+++ b/drivers/input/joystick/twidjoy.c
@@ -104,7 +104,7 @@ struct twidjoy {
  * Twiddler. It updates the data accordingly.
  */
 
-static void twidjoy_process_packet(struct twidjoy *twidjoy, struct pt_regs *regs)
+static void twidjoy_process_packet(struct twidjoy *twidjoy)
 {
 	struct input_dev *dev = twidjoy->dev;
 	unsigned char *data = twidjoy->data;
@@ -113,8 +113,6 @@ static void twidjoy_process_packet(struct twidjoy *twidjoy, struct pt_regs *regs
 
 	button_bits = ((data[1] & 0x7f) << 7) | (data[0] & 0x7f);
 
-	input_regs(dev, regs);
-
 	for (bp = twidjoy_buttons; bp->bitmask; bp++) {
 		int value = (button_bits & (bp->bitmask << bp->bitshift)) >> bp->bitshift;
 		int i;
@@ -141,7 +139,7 @@ static void twidjoy_process_packet(struct twidjoy *twidjoy, struct pt_regs *regs
  * packet processing routine.
  */
 
-static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs)
+static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
 {
 	struct twidjoy *twidjoy = serio_get_drvdata(serio);
 
@@ -158,7 +156,7 @@ static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, un
 		twidjoy->data[twidjoy->idx++] = data;
 
 	if (twidjoy->idx == TWIDJOY_MAX_LENGTH) {
-		twidjoy_process_packet(twidjoy, regs);
+		twidjoy_process_packet(twidjoy);
 		twidjoy->idx = 0;
 	}
 
diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c
index f9c1a03214e..35edea1ab95 100644
--- a/drivers/input/joystick/warrior.c
+++ b/drivers/input/joystick/warrior.c
@@ -64,15 +64,13 @@ struct warrior {
  * Warrior. It updates the data accordingly.
  */
 
-static void warrior_process_packet(struct warrior *warrior, struct pt_regs *regs)
+static void warrior_process_packet(struct warrior *warrior)
 {
 	struct input_dev *dev = warrior->dev;
 	unsigned char *data = warrior->data;
 
 	if (!warrior->idx) return;
 
-	input_regs(dev, regs);
-
 	switch ((data[0] >> 4) & 7) {
 		case 1:					/* Button data */
 			input_report_key(dev, BTN_TRIGGER,  data[3]       & 1);
@@ -101,12 +99,12 @@ static void warrior_process_packet(struct warrior *warrior, struct pt_regs *regs
  */
 
 static irqreturn_t warrior_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct warrior *warrior = serio_get_drvdata(serio);
 
 	if (data & 0x80) {
-		if (warrior->idx) warrior_process_packet(warrior, regs);
+		if (warrior->idx) warrior_process_packet(warrior);
 		warrior->idx = 0;
 		warrior->len = warrior_lengths[(data >> 4) & 7];
 	}
@@ -115,7 +113,7 @@ static irqreturn_t warrior_interrupt(struct serio *serio,
 		warrior->data[warrior->idx++] = data;
 
 	if (warrior->idx == warrior->len) {
-		if (warrior->idx) warrior_process_packet(warrior, regs);
+		if (warrior->idx) warrior_process_packet(warrior);
 		warrior->idx = 0;
 		warrior->len = 0;
 	}
diff --git a/drivers/input/keyboard/amikbd.c b/drivers/input/keyboard/amikbd.c
index f1f9db9d282..8abdbd0ee8f 100644
--- a/drivers/input/keyboard/amikbd.c
+++ b/drivers/input/keyboard/amikbd.c
@@ -158,7 +158,7 @@ static const char *amikbd_messages[8] = {
 
 static struct input_dev *amikbd_dev;
 
-static irqreturn_t amikbd_interrupt(int irq, void *dummy, struct pt_regs *fp)
+static irqreturn_t amikbd_interrupt(int irq, void *dummy)
 {
 	unsigned char scancode, down;
 
@@ -171,8 +171,6 @@ static irqreturn_t amikbd_interrupt(int irq, void *dummy, struct pt_regs *fp)
 	scancode >>= 1;
 
 	if (scancode < 0x78) {		/* scancodes < 0x78 are keys */
-		input_regs(amikbd_dev, fp);
-
 		if (scancode == 98) {	/* CapsLock is a toggle switch key on Amiga */
 			input_report_key(amikbd_dev, scancode, 1);
 			input_report_key(amikbd_dev, scancode, 0);
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 40244d4ce0f..b6ef9eaad1d 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -318,7 +318,7 @@ static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code
  */
 
 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
-			unsigned int flags, struct pt_regs *regs)
+			unsigned int flags)
 {
 	struct atkbd *atkbd = serio_get_drvdata(serio);
 	struct input_dev *dev = atkbd->dev;
@@ -458,7 +458,6 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 				atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
 			}
 
-			input_regs(dev, regs);
 			input_event(dev, EV_KEY, keycode, value);
 			input_sync(dev);
 
@@ -469,7 +468,6 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 	}
 
 	if (atkbd->scroll) {
-		input_regs(dev, regs);
 		if (click != -1)
 			input_report_key(dev, BTN_MIDDLE, click);
 		input_report_rel(dev, REL_WHEEL, scroll);
diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c
index 1e03153b9bc..cb70970625b 100644
--- a/drivers/input/keyboard/corgikbd.c
+++ b/drivers/input/keyboard/corgikbd.c
@@ -129,7 +129,7 @@ static inline void corgikbd_reset_col(int col)
  */
 
 /* Scan the hardware keyboard and push any changes up through the input layer */
-static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data, struct pt_regs *regs)
+static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data)
 {
 	unsigned int row, col, rowd;
 	unsigned long flags;
@@ -140,9 +140,6 @@ static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data, struct pt_regs
 
 	spin_lock_irqsave(&corgikbd_data->lock, flags);
 
-	if (regs)
-		input_regs(corgikbd_data->input, regs);
-
 	num_pressed = 0;
 	for (col = 0; col < KB_COLS; col++) {
 		/*
@@ -191,14 +188,14 @@ static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data, struct pt_regs
 /*
  * corgi keyboard interrupt handler.
  */
-static irqreturn_t corgikbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t corgikbd_interrupt(int irq, void *dev_id)
 {
 	struct corgikbd *corgikbd_data = dev_id;
 
 	if (!timer_pending(&corgikbd_data->timer)) {
 		/** wait chattering delay **/
 		udelay(20);
-		corgikbd_scankeyboard(corgikbd_data, regs);
+		corgikbd_scankeyboard(corgikbd_data);
 	}
 
 	return IRQ_HANDLED;
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 2e4abdc2636..c9b0b8978cd 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -198,7 +198,7 @@ static void hil_kbd_process_err(struct hil_kbd *kbd) {
 }
 
 static irqreturn_t hil_kbd_interrupt(struct serio *serio, 
-	      unsigned char data, unsigned int flags, struct pt_regs *regs)
+	      unsigned char data, unsigned int flags)
 {
 	struct hil_kbd *kbd;
 	hil_packet packet;
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index d22c7c62429..54bc569db4b 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -150,7 +150,7 @@ static inline void handle_data(unsigned char s, unsigned char c)
 /* 
  * Handle HIL interrupts.
  */
-static irqreturn_t hil_interrupt(int irq, void *handle, struct pt_regs *regs)
+static irqreturn_t hil_interrupt(int irq, void *handle)
 {
 	unsigned char s, c;
 	
diff --git a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c
index 5174224cadb..708d5a1bc3d 100644
--- a/drivers/input/keyboard/lkkbd.c
+++ b/drivers/input/keyboard/lkkbd.c
@@ -453,8 +453,7 @@ lkkbd_detection_done (struct lkkbd *lk)
  * is received.
  */
 static irqreturn_t
-lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags,
-		struct pt_regs *regs)
+lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags)
 {
 	struct lkkbd *lk = serio_get_drvdata (serio);
 	int i;
@@ -473,7 +472,6 @@ lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags,
 
 	switch (data) {
 		case LK_ALL_KEYS_UP:
-			input_regs (lk->dev, regs);
 			for (i = 0; i < ARRAY_SIZE (lkkbd_keycode); i++)
 				if (lk->keycode[i] != KEY_RESERVED)
 					input_report_key (lk->dev, lk->keycode[i], 0);
@@ -501,7 +499,6 @@ lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags,
 
 		default:
 			if (lk->keycode[data] != KEY_RESERVED) {
-				input_regs (lk->dev, regs);
 				if (!test_bit (lk->keycode[data], lk->dev->key))
 					input_report_key (lk->dev, lk->keycode[data], 1);
 				else
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index 83906f80ba2..fd33c9cc327 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -126,7 +126,7 @@ static inline void locomokbd_reset_col(unsigned long membase, int col)
  */
 
 /* Scan the hardware keyboard and push any changes up through the input layer */
-static void locomokbd_scankeyboard(struct locomokbd *locomokbd, struct pt_regs *regs)
+static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
 {
 	unsigned int row, col, rowd, scancode;
 	unsigned long flags;
@@ -135,8 +135,6 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd, struct pt_regs *
 
 	spin_lock_irqsave(&locomokbd->lock, flags);
 
-	input_regs(locomokbd->input, regs);
-
 	locomokbd_charge_all(membase);
 
 	num_pressed = 0;
@@ -171,13 +169,13 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd, struct pt_regs *
 /*
  * LoCoMo keyboard interrupt handler.
  */
-static irqreturn_t locomokbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
 {
 	struct locomokbd *locomokbd = dev_id;
 	/** wait chattering delay **/
 	udelay(100);
 
-	locomokbd_scankeyboard(locomokbd, regs);
+	locomokbd_scankeyboard(locomokbd);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/input/keyboard/newtonkbd.c b/drivers/input/keyboard/newtonkbd.c
index 40a3f551247..9282e4e082b 100644
--- a/drivers/input/keyboard/newtonkbd.c
+++ b/drivers/input/keyboard/newtonkbd.c
@@ -65,13 +65,12 @@ struct nkbd {
 };
 
 static irqreturn_t nkbd_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct nkbd *nkbd = serio_get_drvdata(serio);
 
 	/* invalid scan codes are probably the init sequence, so we ignore them */
 	if (nkbd->keycode[data & NKBD_KEY]) {
-		input_regs(nkbd->dev, regs);
 		input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS);
 		input_sync(nkbd->dev);
 	}
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index d436287d1d2..5680a6d95b2 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -97,8 +97,7 @@ static u8 get_row_gpio_val(struct omap_kp *omap_kp)
 #define		get_row_gpio_val(x)	0
 #endif
 
-static irqreturn_t omap_kp_interrupt(int irq, void *dev_id,
-				     struct pt_regs *regs)
+static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
 {
 	struct omap_kp *omap_kp = dev_id;
 
diff --git a/drivers/input/keyboard/spitzkbd.c b/drivers/input/keyboard/spitzkbd.c
index e385710233f..8b18c009e3e 100644
--- a/drivers/input/keyboard/spitzkbd.c
+++ b/drivers/input/keyboard/spitzkbd.c
@@ -176,7 +176,7 @@ static inline int spitzkbd_get_row_status(int col)
  */
 
 /* Scan the hardware keyboard and push any changes up through the input layer */
-static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data, struct pt_regs *regs)
+static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data)
 {
 	unsigned int row, col, rowd;
 	unsigned long flags;
@@ -187,8 +187,6 @@ static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data, struct pt_regs
 
 	spin_lock_irqsave(&spitzkbd_data->lock, flags);
 
-	input_regs(spitzkbd_data->input, regs);
-
 	num_pressed = 0;
 	for (col = 0; col < KB_COLS; col++) {
 		/*
@@ -239,14 +237,14 @@ static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data, struct pt_regs
 /*
  * spitz keyboard interrupt handler.
  */
-static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id)
 {
 	struct spitzkbd *spitzkbd_data = dev_id;
 
 	if (!timer_pending(&spitzkbd_data->timer)) {
 		/** wait chattering delay **/
 		udelay(20);
-		spitzkbd_scankeyboard(spitzkbd_data, regs);
+		spitzkbd_scankeyboard(spitzkbd_data);
 	}
 
 	return IRQ_HANDLED;
@@ -267,7 +265,7 @@ static void spitzkbd_timer_callback(unsigned long data)
  * We debounce the switches and pass them to the input system.
  */
 
-static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id)
 {
 	struct spitzkbd *spitzkbd_data = dev_id;
 
diff --git a/drivers/input/keyboard/stowaway.c b/drivers/input/keyboard/stowaway.c
index 04c54c57f25..e60937d17b1 100644
--- a/drivers/input/keyboard/stowaway.c
+++ b/drivers/input/keyboard/stowaway.c
@@ -71,13 +71,12 @@ struct skbd {
 };
 
 static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
-				  unsigned int flags, struct pt_regs *regs)
+				  unsigned int flags)
 {
 	struct skbd *skbd = serio_get_drvdata(serio);
 	struct input_dev *dev = skbd->dev;
 
 	if (skbd->keycode[data & SKBD_KEY_MASK]) {
-		input_regs(dev, regs);
 		input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
 				 !(data & SKBD_RELEASE));
 		input_sync(dev);
diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
index 9dbd7b85686..cac4781103c 100644
--- a/drivers/input/keyboard/sunkbd.c
+++ b/drivers/input/keyboard/sunkbd.c
@@ -94,7 +94,7 @@ struct sunkbd {
  */
 
 static irqreturn_t sunkbd_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct sunkbd* sunkbd = serio_get_drvdata(serio);
 
@@ -129,7 +129,6 @@ static irqreturn_t sunkbd_interrupt(struct serio *serio,
 				break;
 
 			if (sunkbd->keycode[data & SUNKBD_KEY]) {
-				input_regs(sunkbd->dev, regs);
                                 input_report_key(sunkbd->dev, sunkbd->keycode[data & SUNKBD_KEY], !(data & SUNKBD_RELEASE));
 				input_sync(sunkbd->dev);
                         } else {
diff --git a/drivers/input/keyboard/xtkbd.c b/drivers/input/keyboard/xtkbd.c
index 0821d53cf0c..8c11dc93545 100644
--- a/drivers/input/keyboard/xtkbd.c
+++ b/drivers/input/keyboard/xtkbd.c
@@ -64,7 +64,7 @@ struct xtkbd {
 };
 
 static irqreturn_t xtkbd_interrupt(struct serio *serio,
-	unsigned char data, unsigned int flags, struct pt_regs *regs)
+	unsigned char data, unsigned int flags)
 {
 	struct xtkbd *xtkbd = serio_get_drvdata(serio);
 
@@ -75,7 +75,6 @@ static irqreturn_t xtkbd_interrupt(struct serio *serio,
 		default:
 
 			if (xtkbd->keycode[data & XTKBD_KEY]) {
-				input_regs(xtkbd->dev, regs);
 				input_report_key(xtkbd->dev, xtkbd->keycode[data & XTKBD_KEY], !(data & XTKBD_RELEASE));
 				input_sync(xtkbd->dev);
 			} else {
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index 805b636e73d..105c6fc2782 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -79,7 +79,7 @@ static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned
 	return 0;
 }
 
-static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
 {
 	/* clear interrupt */
 	*IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 450b68a619f..4e71a66fc7f 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -76,7 +76,7 @@ static const struct alps_model_info alps_model_data[] = {
  * on a dualpoint, etc.
  */
 
-static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
+static void alps_process_packet(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
 	unsigned char *packet = psmouse->packet;
@@ -85,8 +85,6 @@ static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
 	int x, y, z, ges, fin, left, right, middle;
 	int back = 0, forward = 0;
 
-	input_regs(dev, regs);
-
 	if ((packet[0] & 0xc8) == 0x08) {   /* 3-byte PS/2 packet */
 		input_report_key(dev2, BTN_LEFT,   packet[0] & 1);
 		input_report_key(dev2, BTN_RIGHT,  packet[0] & 2);
@@ -181,13 +179,13 @@ static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs)
 	input_sync(dev);
 }
 
-static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
 
 	if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
 		if (psmouse->pktcnt == 3) {
-			alps_process_packet(psmouse, regs);
+			alps_process_packet(psmouse);
 			return PSMOUSE_FULL_PACKET;
 		}
 		return PSMOUSE_GOOD_DATA;
@@ -202,7 +200,7 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *
 		return PSMOUSE_BAD_DATA;
 
 	if (psmouse->pktcnt == 6) {
-		alps_process_packet(psmouse, regs);
+		alps_process_packet(psmouse);
 		return PSMOUSE_FULL_PACKET;
 	}
 
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
index c8b2cc9f184..599a7b2dc51 100644
--- a/drivers/input/mouse/amimouse.c
+++ b/drivers/input/mouse/amimouse.c
@@ -36,7 +36,7 @@ MODULE_LICENSE("GPL");
 static int amimouse_lastx, amimouse_lasty;
 static struct input_dev *amimouse_dev;
 
-static irqreturn_t amimouse_interrupt(int irq, void *dummy, struct pt_regs *fp)
+static irqreturn_t amimouse_interrupt(int irq, void *dummy)
 {
 	unsigned short joy0dat, potgor;
 	int nx, ny, dx, dy;
@@ -59,8 +59,6 @@ static irqreturn_t amimouse_interrupt(int irq, void *dummy, struct pt_regs *fp)
 
 	potgor = amiga_custom.potgor;
 
-	input_regs(amimouse_dev, fp);
-
 	input_report_rel(amimouse_dev, REL_X, dx);
 	input_report_rel(amimouse_dev, REL_Y, dy);
 
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index 69f02178c52..402b057e986 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -190,7 +190,7 @@ static void hil_ptr_process_err(struct hil_ptr *ptr) {
 }
 
 static irqreturn_t hil_ptr_interrupt(struct serio *serio, 
-        unsigned char data, unsigned int flags, struct pt_regs *regs)
+        unsigned char data, unsigned int flags)
 {
 	struct hil_ptr *ptr;
 	hil_packet packet;
diff --git a/drivers/input/mouse/inport.c b/drivers/input/mouse/inport.c
index 50f1fed10be..e1252fa9a10 100644
--- a/drivers/input/mouse/inport.c
+++ b/drivers/input/mouse/inport.c
@@ -88,15 +88,13 @@ __obsolete_setup("inport_irq=");
 
 static struct input_dev *inport_dev;
 
-static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t inport_interrupt(int irq, void *dev_id)
 {
 	unsigned char buttons;
 
 	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
 	outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
 
-	input_regs(inport_dev, regs);
-
 	outb(INPORT_REG_X, INPORT_CONTROL_PORT);
 	input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
 
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 5e9d2506751..c57e8853b94 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -62,7 +62,7 @@ static struct dmi_system_id lifebook_dmi_table[] = {
 };
 
 
-static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
 {
 	unsigned char *packet = psmouse->packet;
 	struct input_dev *dev = psmouse->dev;
@@ -70,8 +70,6 @@ static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse, struct pt_re
 	if (psmouse->pktcnt != 3)
 		return PSMOUSE_GOOD_DATA;
 
-	input_regs(dev, regs);
-
 	/* calculate X and Y */
 	if ((packet[0] & 0x08) == 0x00) {
 		input_report_abs(dev, ABS_X,
diff --git a/drivers/input/mouse/logibm.c b/drivers/input/mouse/logibm.c
index 9c7ce38806d..8e9c2f3d69a 100644
--- a/drivers/input/mouse/logibm.c
+++ b/drivers/input/mouse/logibm.c
@@ -79,7 +79,7 @@ __obsolete_setup("logibm_irq=");
 
 static struct input_dev *logibm_dev;
 
-static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t logibm_interrupt(int irq, void *dev_id)
 {
 	char dx, dy;
 	unsigned char buttons;
@@ -95,7 +95,6 @@ static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	dy |= (buttons & 0xf) << 4;
 	buttons = ~buttons >> 5;
 
-	input_regs(logibm_dev, regs);
 	input_report_rel(logibm_dev, REL_X, dx);
 	input_report_rel(logibm_dev, REL_Y, dy);
 	input_report_key(logibm_dev, BTN_RIGHT,  buttons & 1);
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 7972eecbcfe..8a4f862709e 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -39,7 +39,7 @@ struct ps2pp_info {
  * Process a PS2++ or PS2T++ packet.
  */
 
-static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
@@ -51,8 +51,6 @@ static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse, struct pt_regs
  * Full packet accumulated, process it
  */
 
-	input_regs(dev, regs);
-
 	if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) {
 
 		/* Logitech extended packet */
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index d284ea71215..8c075aa7223 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -57,7 +57,7 @@ static struct input_dev *pc110pad_dev;
 static int pc110pad_data[3];
 static int pc110pad_count;
 
-static irqreturn_t pc110pad_interrupt(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t pc110pad_interrupt(int irq, void *ptr)
 {
 	int value     = inb_p(pc110pad_io);
 	int handshake = inb_p(pc110pad_io + 2);
@@ -71,7 +71,6 @@ static irqreturn_t pc110pad_interrupt(int irq, void *ptr, struct pt_regs *regs)
 	if (pc110pad_count < 3)
 		return IRQ_HANDLED;
 
-	input_regs(pc110pad_dev, regs);
 	input_report_key(pc110pad_dev, BTN_TOUCH,
 		pc110pad_data[0] & 0x01);
 	input_report_abs(pc110pad_dev, ABS_X,
@@ -91,9 +90,9 @@ static void pc110pad_close(struct input_dev *dev)
 
 static int pc110pad_open(struct input_dev *dev)
 {
-	pc110pad_interrupt(0, NULL, NULL);
-	pc110pad_interrupt(0, NULL, NULL);
-	pc110pad_interrupt(0, NULL, NULL);
+	pc110pad_interrupt(0, NULL);
+	pc110pad_interrupt(0, NULL);
+	pc110pad_interrupt(0, NULL);
 	outb(PC110PAD_ON, pc110pad_io + 2);
 	pc110pad_count = 0;
 
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 9fb7eb6b0f7..6f9b2c7cc9c 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -124,7 +124,7 @@ struct psmouse_protocol {
  * relevant events to the input module once full packet has arrived.
  */
 
-static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
@@ -136,8 +136,6 @@ static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_reg
  * Full packet accumulated, process it
  */
 
-	input_regs(dev, regs);
-
 /*
  * Scroll wheel on IntelliMice, scroll buttons on NetMice
  */
@@ -231,9 +229,9 @@ static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_st
  * by calling corresponding protocol handler.
  */
 
-static int psmouse_handle_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static int psmouse_handle_byte(struct psmouse *psmouse)
 {
-	psmouse_ret_t rc = psmouse->protocol_handler(psmouse, regs);
+	psmouse_ret_t rc = psmouse->protocol_handler(psmouse);
 
 	switch (rc) {
 		case PSMOUSE_BAD_DATA:
@@ -271,7 +269,7 @@ static int psmouse_handle_byte(struct psmouse *psmouse, struct pt_regs *regs)
  */
 
 static irqreturn_t psmouse_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct psmouse *psmouse = serio_get_drvdata(serio);
 
@@ -327,7 +325,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
  * Not a new device, try processing first byte normally
  */
 		psmouse->pktcnt = 1;
-		if (psmouse_handle_byte(psmouse, regs))
+		if (psmouse_handle_byte(psmouse))
 			goto out;
 
 		psmouse->packet[psmouse->pktcnt++] = data;
@@ -346,7 +344,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 	}
 
 	psmouse->last = jiffies;
-	psmouse_handle_byte(psmouse, regs);
+	psmouse_handle_byte(psmouse);
 
  out:
 	return IRQ_HANDLED;
@@ -940,7 +938,7 @@ static void psmouse_resync(void *p)
 			psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 			for (i = 0; i < psmouse->pktsize; i++) {
 				psmouse->pktcnt++;
-				rc = psmouse->protocol_handler(psmouse, NULL);
+				rc = psmouse->protocol_handler(psmouse);
 				if (rc != PSMOUSE_GOOD_DATA)
 					break;
 			}
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 4d9107fba6a..1b74cae8a55 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -62,7 +62,7 @@ struct psmouse {
 	unsigned int resync_time;
 	unsigned int smartscroll;	/* Logitech only */
 
-	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse, struct pt_regs *regs);
+	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
 	void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
 	void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
 
diff --git a/drivers/input/mouse/rpcmouse.c b/drivers/input/mouse/rpcmouse.c
index 872b30bf7aa..ea046856961 100644
--- a/drivers/input/mouse/rpcmouse.c
+++ b/drivers/input/mouse/rpcmouse.c
@@ -36,7 +36,7 @@ MODULE_LICENSE("GPL");
 static short rpcmouse_lastx, rpcmouse_lasty;
 static struct input_dev *rpcmouse_dev;
 
-static irqreturn_t rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpcmouse_irq(int irq, void *dev_id)
 {
 	struct input_dev *dev = dev_id;
 	short x, y, dx, dy, b;
@@ -51,8 +51,6 @@ static irqreturn_t rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
 	rpcmouse_lastx = x;
 	rpcmouse_lasty = y;
 
-	input_regs(dev, regs);
-
 	input_report_rel(dev, REL_X, dx);
 	input_report_rel(dev, REL_Y, -dy);
 
diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c
index 680b3235388..2a272c5daf0 100644
--- a/drivers/input/mouse/sermouse.c
+++ b/drivers/input/mouse/sermouse.c
@@ -61,13 +61,11 @@ struct sermouse {
  * second, which is as good as a PS/2 or USB mouse.
  */
 
-static void sermouse_process_msc(struct sermouse *sermouse, signed char data, struct pt_regs *regs)
+static void sermouse_process_msc(struct sermouse *sermouse, signed char data)
 {
 	struct input_dev *dev = sermouse->dev;
 	signed char *buf = sermouse->buf;
 
-	input_regs(dev, regs);
-
 	switch (sermouse->count) {
 
 		case 0:
@@ -104,15 +102,13 @@ static void sermouse_process_msc(struct sermouse *sermouse, signed char data, st
  * standard 3-byte packets and 1200 bps.
  */
 
-static void sermouse_process_ms(struct sermouse *sermouse, signed char data, struct pt_regs *regs)
+static void sermouse_process_ms(struct sermouse *sermouse, signed char data)
 {
 	struct input_dev *dev = sermouse->dev;
 	signed char *buf = sermouse->buf;
 
 	if (data & 0x40) sermouse->count = 0;
 
-	input_regs(dev, regs);
-
 	switch (sermouse->count) {
 
 		case 0:
@@ -206,7 +202,7 @@ static void sermouse_process_ms(struct sermouse *sermouse, signed char data, str
  */
 
 static irqreturn_t sermouse_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct sermouse *sermouse = serio_get_drvdata(serio);
 
@@ -214,9 +210,9 @@ static irqreturn_t sermouse_interrupt(struct serio *serio,
 	sermouse->last = jiffies;
 
 	if (sermouse->type > SERIO_SUN)
-		sermouse_process_ms(sermouse, data, regs);
+		sermouse_process_ms(sermouse, data);
 	else
-		sermouse_process_msc(sermouse, data, regs);
+		sermouse_process_msc(sermouse, data);
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 392108c436b..49ac696d6cf 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -216,13 +216,13 @@ static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet
 	struct psmouse *child = serio_get_drvdata(ptport);
 
 	if (child && child->state == PSMOUSE_ACTIVATED) {
-		serio_interrupt(ptport, packet[1], 0, NULL);
-		serio_interrupt(ptport, packet[4], 0, NULL);
-		serio_interrupt(ptport, packet[5], 0, NULL);
+		serio_interrupt(ptport, packet[1], 0);
+		serio_interrupt(ptport, packet[4], 0);
+		serio_interrupt(ptport, packet[5], 0);
 		if (child->pktsize == 4)
-			serio_interrupt(ptport, packet[2], 0, NULL);
+			serio_interrupt(ptport, packet[2], 0);
 	} else
-		serio_interrupt(ptport, packet[1], 0, NULL);
+		serio_interrupt(ptport, packet[1], 0);
 }
 
 static void synaptics_pt_activate(struct psmouse *psmouse)
@@ -469,13 +469,10 @@ static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
 	return SYN_NEWABS_STRICT;
 }
 
-static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
 {
-	struct input_dev *dev = psmouse->dev;
 	struct synaptics_data *priv = psmouse->private;
 
-	input_regs(dev, regs);
-
 	if (psmouse->pktcnt >= 6) { /* Full packet received */
 		if (unlikely(priv->pkt_type == SYN_NEWABS))
 			priv->pkt_type = synaptics_detect_pkt_type(psmouse);
diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c
index 47edcfd022b..ffdb50eee93 100644
--- a/drivers/input/mouse/vsxxxaa.c
+++ b/drivers/input/mouse/vsxxxaa.c
@@ -211,7 +211,7 @@ vsxxxaa_smells_like_packet (struct vsxxxaa *mouse, unsigned char type, size_t le
 }
 
 static void
-vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
+vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse)
 {
 	struct input_dev *dev = mouse->dev;
 	unsigned char *buf = mouse->buf;
@@ -258,7 +258,6 @@ vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 	/*
 	 * Report what we've found so far...
 	 */
-	input_regs (dev, regs);
 	input_report_key (dev, BTN_LEFT, left);
 	input_report_key (dev, BTN_MIDDLE, middle);
 	input_report_key (dev, BTN_RIGHT, right);
@@ -269,7 +268,7 @@ vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 }
 
 static void
-vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
+vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse)
 {
 	struct input_dev *dev = mouse->dev;
 	unsigned char *buf = mouse->buf;
@@ -312,7 +311,6 @@ vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 	/*
 	 * Report what we've found so far...
 	 */
-	input_regs (dev, regs);
 	input_report_key (dev, BTN_LEFT, left);
 	input_report_key (dev, BTN_MIDDLE, middle);
 	input_report_key (dev, BTN_RIGHT, right);
@@ -323,7 +321,7 @@ vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 }
 
 static void
-vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
+vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse)
 {
 	struct input_dev *dev = mouse->dev;
 	unsigned char *buf = mouse->buf;
@@ -367,7 +365,6 @@ vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 
 	if (error <= 0x1f) {
 		/* No (serious) error. Report buttons */
-		input_regs (dev, regs);
 		input_report_key (dev, BTN_LEFT, left);
 		input_report_key (dev, BTN_MIDDLE, middle);
 		input_report_key (dev, BTN_RIGHT, right);
@@ -395,7 +392,7 @@ vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse, struct pt_regs *regs)
 }
 
 static void
-vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs)
+vsxxxaa_parse_buffer (struct vsxxxaa *mouse)
 {
 	unsigned char *buf = mouse->buf;
 	int stray_bytes;
@@ -432,7 +429,7 @@ vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs)
 				continue;
 			}
 
-			vsxxxaa_handle_REL_packet (mouse, regs);
+			vsxxxaa_handle_REL_packet (mouse);
 			continue; /* More to parse? */
 		}
 
@@ -446,7 +443,7 @@ vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs)
 				continue;
 			}
 
-			vsxxxaa_handle_ABS_packet (mouse, regs);
+			vsxxxaa_handle_ABS_packet (mouse);
 			continue; /* More to parse? */
 		}
 
@@ -460,7 +457,7 @@ vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs)
 				continue;
 			}
 
-			vsxxxaa_handle_POR_packet (mouse, regs);
+			vsxxxaa_handle_POR_packet (mouse);
 			continue; /* More to parse? */
 		}
 
@@ -469,13 +466,12 @@ vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs)
 }
 
 static irqreturn_t
-vsxxxaa_interrupt (struct serio *serio, unsigned char data, unsigned int flags,
-		struct pt_regs *regs)
+vsxxxaa_interrupt (struct serio *serio, unsigned char data, unsigned int flags)
 {
 	struct vsxxxaa *mouse = serio_get_drvdata (serio);
 
 	vsxxxaa_queue_byte (mouse, data);
-	vsxxxaa_parse_buffer (mouse, regs);
+	vsxxxaa_parse_buffer (mouse);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 3df5eedf8f3..5a7b49c3553 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -37,14 +37,14 @@ struct amba_kmi_port {
 	unsigned int		open;
 };
 
-static irqreturn_t amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t amba_kmi_int(int irq, void *dev_id)
 {
 	struct amba_kmi_port *kmi = dev_id;
 	unsigned int status = readb(KMIIR);
 	int handled = IRQ_NONE;
 
 	while (status & KMIIR_RXINTR) {
-		serio_interrupt(kmi->io, readb(KMIDATA), 0, regs);
+		serio_interrupt(kmi->io, readb(KMIDATA), 0);
 		status = readb(KMIIR);
 		handled = IRQ_HANDLED;
 	}
diff --git a/drivers/input/serio/ct82c710.c b/drivers/input/serio/ct82c710.c
index bc6e87add09..0d35018c23a 100644
--- a/drivers/input/serio/ct82c710.c
+++ b/drivers/input/serio/ct82c710.c
@@ -71,9 +71,9 @@ static struct resource ct82c710_iores;
  * is waiting in the 82C710.
  */
 
-static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id, struct pt_regs * regs)
+static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id)
 {
-	return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0, regs);
+	return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0);
 }
 
 /*
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index cde036a9216..081fdc3c773 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -82,7 +82,7 @@ MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
 #define GSC_ID_MOUSE		1
 
 
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs);
+static irqreturn_t gscps2_interrupt(int irq, void *dev);
 
 #define BUFFER_SIZE 0x0f
 
@@ -226,7 +226,7 @@ static LIST_HEAD(ps2port_list);
  * later.
  */
 
-static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t gscps2_interrupt(int irq, void *dev)
 {
 	struct gscps2port *ps2port;
 
@@ -267,7 +267,7 @@ static irqreturn_t gscps2_interrupt(int irq, void *dev, struct pt_regs *regs)
 	    rxflags =	((status & GSC_STAT_TERR) ? SERIO_TIMEOUT : 0 ) |
 			((status & GSC_STAT_PERR) ? SERIO_PARITY  : 0 );
 
-	    serio_interrupt(ps2port->port, data, rxflags, regs);
+	    serio_interrupt(ps2port->port, data, rxflags);
 
 	  } /* while() */
 
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index a10348bb25e..ba7b920347e 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -202,7 +202,7 @@ static void hp_sdc_take (int irq, void *dev_id, uint8_t status, uint8_t data) {
 	}
 }
 
-static irqreturn_t hp_sdc_isr(int irq, void *dev_id, struct pt_regs * regs) {
+static irqreturn_t hp_sdc_isr(int irq, void *dev_id) {
 	uint8_t status, data;
 
 	status = hp_sdc_status_in8();
@@ -253,7 +253,7 @@ static irqreturn_t hp_sdc_isr(int irq, void *dev_id, struct pt_regs * regs) {
 }
 
 
-static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id, struct pt_regs * regs) {
+static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id) {
 	int status;
 	
 	status = hp_sdc_status_in8();
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 1bb0c76a925..09b06e605b5 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -108,7 +108,7 @@ static unsigned char i8042_kbd_irq_registered;
 static unsigned char i8042_aux_irq_registered;
 static struct platform_device *i8042_platform_device;
 
-static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t i8042_interrupt(int irq, void *dev_id);
 
 /*
  * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to
@@ -271,7 +271,7 @@ static int i8042_aux_write(struct serio *serio, unsigned char c)
  * characters later.
  */
 
-	i8042_interrupt(0, NULL, NULL);
+	i8042_interrupt(0, NULL);
 	return retval;
 }
 
@@ -309,7 +309,7 @@ static void i8042_stop(struct serio *serio)
  * to the upper layers.
  */
 
-static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t i8042_interrupt(int irq, void *dev_id)
 {
 	struct i8042_port *port;
 	unsigned long flags;
@@ -379,7 +379,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	    dfl & SERIO_TIMEOUT ? ", timeout" : "");
 
 	if (likely(port->exists))
-		serio_interrupt(port->serio, data, dfl, regs);
+		serio_interrupt(port->serio, data, dfl);
 
 	ret = 1;
  out:
@@ -519,7 +519,7 @@ static int __devinit i8042_check_mux(void)
 static struct completion i8042_aux_irq_delivered __devinitdata;
 static int i8042_irq_being_tested __devinitdata;
 
-static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id)
 {
 	unsigned long flags;
 	unsigned char str, data;
@@ -905,7 +905,7 @@ static int i8042_resume(struct platform_device *dev)
 	if (i8042_ports[I8042_KBD_PORT_NO].serio)
 		i8042_enable_kbd_port();
 
-	i8042_interrupt(0, NULL, NULL);
+	i8042_interrupt(0, NULL);
 
 	return 0;
 }
diff --git a/drivers/input/serio/maceps2.c b/drivers/input/serio/maceps2.c
index f08a5d0cd5f..558200e96d0 100644
--- a/drivers/input/serio/maceps2.c
+++ b/drivers/input/serio/maceps2.c
@@ -72,8 +72,7 @@ static int maceps2_write(struct serio *dev, unsigned char val)
 	return -1;
 }
 
-static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
-				     struct pt_regs *regs)
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id)
 {
 	struct serio *dev = dev_id;
 	struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
@@ -81,7 +80,7 @@ static irqreturn_t maceps2_interrupt(int irq, void *dev_id,
 
 	if (port->status & PS2_STATUS_RX_FULL) {
 		byte = port->rx;
-		serio_interrupt(dev, byte & 0xff, 0, regs);
+		serio_interrupt(dev, byte & 0xff, 0);
         }
 
 	return IRQ_HANDLED;
diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c
index a5c1fb3a4a5..688610e86a3 100644
--- a/drivers/input/serio/parkbd.c
+++ b/drivers/input/serio/parkbd.c
@@ -102,7 +102,7 @@ static int parkbd_write(struct serio *port, unsigned char c)
 	return 0;
 }
 
-static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static void parkbd_interrupt(int irq, void *dev_id)
 {
 
 	if (parkbd_writing) {
@@ -134,7 +134,7 @@ static void parkbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		parkbd_buffer |= (parkbd_readlines() >> 1) << parkbd_counter++;
 
 		if (parkbd_counter == parkbd_mode + 10)
-			serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0, regs);
+			serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0);
 	}
 
 	parkbd_last = jiffies;
diff --git a/drivers/input/serio/pcips2.c b/drivers/input/serio/pcips2.c
index fb727c66525..ea5e3c6ddb6 100644
--- a/drivers/input/serio/pcips2.c
+++ b/drivers/input/serio/pcips2.c
@@ -58,7 +58,7 @@ static int pcips2_write(struct serio *io, unsigned char val)
 	return 0;
 }
 
-static irqreturn_t pcips2_interrupt(int irq, void *devid, struct pt_regs *regs)
+static irqreturn_t pcips2_interrupt(int irq, void *devid)
 {
 	struct pcips2_data *ps2if = devid;
 	unsigned char status, scancode;
@@ -80,7 +80,7 @@ static irqreturn_t pcips2_interrupt(int irq, void *devid, struct pt_regs *regs)
 		if (hweight8(scancode) & 1)
 			flag ^= SERIO_PARITY;
 
-		serio_interrupt(ps2if->io, scancode, flag, regs);
+		serio_interrupt(ps2if->io, scancode, flag);
 	} while (1);
 	return IRQ_RETVAL(handled);
 }
diff --git a/drivers/input/serio/q40kbd.c b/drivers/input/serio/q40kbd.c
index d3827c5fe11..cb89aff2e16 100644
--- a/drivers/input/serio/q40kbd.c
+++ b/drivers/input/serio/q40kbd.c
@@ -53,14 +53,14 @@ DEFINE_SPINLOCK(q40kbd_lock);
 static struct serio *q40kbd_port;
 static struct platform_device *q40kbd_device;
 
-static irqreturn_t q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&q40kbd_lock, flags);
 
 	if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
-		serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0, regs);
+		serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0);
 
 	master_outb(-1, KEYBOARD_UNLOCK_REG);
 
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index 513d37fc1ac..49f84315cb3 100644
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -56,7 +56,7 @@ static int rpckbd_write(struct serio *port, unsigned char val)
 	return 0;
 }
 
-static irqreturn_t rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_rx(int irq, void *dev_id)
 {
 	struct serio *port = dev_id;
 	unsigned int byte;
@@ -65,13 +65,13 @@ static irqreturn_t rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
 	while (iomd_readb(IOMD_KCTRL) & (1 << 5)) {
 		byte = iomd_readb(IOMD_KARTRX);
 
-		serio_interrupt(port, byte, 0, regs);
+		serio_interrupt(port, byte, 0);
 		handled = IRQ_HANDLED;
 	}
 	return handled;
 }
 
-static irqreturn_t rpckbd_tx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_tx(int irq, void *dev_id)
 {
 	return IRQ_HANDLED;
 }
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index ebd9976fc81..559508795af 100644
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -40,7 +40,7 @@ struct ps2if {
  * at the most one, but we loop for safety.  If there was a
  * framing error, we have to manually clear the status.
  */
-static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_rxint(int irq, void *dev_id)
 {
 	struct ps2if *ps2if = dev_id;
 	unsigned int scancode, flag, status;
@@ -58,7 +58,7 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 		if (hweight8(scancode) & 1)
 			flag ^= SERIO_PARITY;
 
-		serio_interrupt(ps2if->io, scancode, flag, regs);
+		serio_interrupt(ps2if->io, scancode, flag);
 
 		status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
         }
@@ -69,7 +69,7 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 /*
  * Completion of ps2 write
  */
-static irqreturn_t ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_txint(int irq, void *dev_id)
 {
 	struct ps2if *ps2if = dev_id;
 	unsigned int status;
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 3e76ad71c9a..960fae3c3ce 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -911,7 +911,7 @@ void serio_close(struct serio *serio)
 }
 
 irqreturn_t serio_interrupt(struct serio *serio,
-		unsigned char data, unsigned int dfl, struct pt_regs *regs)
+		unsigned char data, unsigned int dfl)
 {
 	unsigned long flags;
 	irqreturn_t ret = IRQ_NONE;
@@ -919,7 +919,7 @@ irqreturn_t serio_interrupt(struct serio *serio,
 	spin_lock_irqsave(&serio->lock, flags);
 
         if (likely(serio->drv)) {
-                ret = serio->drv->interrupt(serio, data, dfl, regs);
+                ret = serio->drv->interrupt(serio, data, dfl);
 	} else if (!dfl && serio->registered) {
 		serio_rescan(serio);
 		ret = IRQ_HANDLED;
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 71a8eea816c..ba2a2035d64 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -250,7 +250,7 @@ static struct file_operations serio_raw_fops = {
  *********************************************************************/
 
 static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
-					unsigned int dfl, struct pt_regs *regs)
+					unsigned int dfl)
 {
 	struct serio_raw *serio_raw = serio_get_drvdata(serio);
 	struct serio_raw_list *list;
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 54a680cc704..e1a3a79ab3f 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -117,9 +117,6 @@ static void serport_ldisc_close(struct tty_struct *tty)
  * serport_ldisc_receive() is called by the low level tty driver when characters
  * are ready for us. We forward the characters, one by one to the 'interrupt'
  * routine.
- *
- * FIXME: We should get pt_regs from the tty layer and forward them to
- *	  serio_interrupt here.
  */
 
 static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
@@ -134,7 +131,7 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
 		goto out;
 
 	for (i = 0; i < count; i++)
-		serio_interrupt(serport->serio, cp[i], 0, NULL);
+		serio_interrupt(serport->serio, cp[i], 0);
 
 out:
 	spin_unlock_irqrestore(&serport->lock, flags);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 66e411badf7..f56d6a0f062 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -487,7 +487,7 @@ static void ads7846_timer(unsigned long handle)
 	spin_unlock_irq(&ts->lock);
 }
 
-static irqreturn_t ads7846_irq(int irq, void *handle, struct pt_regs *regs)
+static irqreturn_t ads7846_irq(int irq, void *handle)
 {
 	struct ads7846 *ts = handle;
 	unsigned long flags;
diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c
index 9b66271d3ba..ca79b224619 100644
--- a/drivers/input/touchscreen/corgi_ts.c
+++ b/drivers/input/touchscreen/corgi_ts.c
@@ -173,7 +173,7 @@ static int read_xydata(struct corgi_ts *corgi_ts)
 	return 1;
 }
 
-static void new_data(struct corgi_ts *corgi_ts, struct pt_regs *regs)
+static void new_data(struct corgi_ts *corgi_ts)
 {
 	if (corgi_ts->power_mode != PWR_MODE_ACTIVE)
 		return;
@@ -181,7 +181,6 @@ static void new_data(struct corgi_ts *corgi_ts, struct pt_regs *regs)
 	if (!corgi_ts->tc.pressure && corgi_ts->pendown == 0)
 		return;
 
-	input_regs(corgi_ts->input, regs);
 	input_report_abs(corgi_ts->input, ABS_X, corgi_ts->tc.x);
 	input_report_abs(corgi_ts->input, ABS_Y, corgi_ts->tc.y);
 	input_report_abs(corgi_ts->input, ABS_PRESSURE, corgi_ts->tc.pressure);
@@ -189,14 +188,14 @@ static void new_data(struct corgi_ts *corgi_ts, struct pt_regs *regs)
 	input_sync(corgi_ts->input);
 }
 
-static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer, struct pt_regs *regs)
+static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer)
 {
 	if ((GPLR(IRQ_TO_GPIO(corgi_ts->irq_gpio)) & GPIO_bit(IRQ_TO_GPIO(corgi_ts->irq_gpio))) == 0) {
 		/* Disable Interrupt */
 		set_irq_type(corgi_ts->irq_gpio, IRQT_NOEDGE);
 		if (read_xydata(corgi_ts)) {
 			corgi_ts->pendown = 1;
-			new_data(corgi_ts, regs);
+			new_data(corgi_ts);
 		}
 		mod_timer(&corgi_ts->timer, jiffies + HZ / 100);
 	} else {
@@ -208,7 +207,7 @@ static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer, struct pt_
 
 		if (corgi_ts->pendown) {
 			corgi_ts->tc.pressure = 0;
-			new_data(corgi_ts, regs);
+			new_data(corgi_ts);
 		}
 
 		/* Enable Falling Edge */
@@ -223,10 +222,10 @@ static void corgi_ts_timer(unsigned long data)
 	ts_interrupt_main(corgits_data, 1, NULL);
 }
 
-static irqreturn_t ts_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ts_interrupt(int irq, void *dev_id)
 {
 	struct corgi_ts *corgits_data = dev_id;
-	ts_interrupt_main(corgits_data, 0, regs);
+	ts_interrupt_main(corgits_data, 0);
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index ab565335ee4..913e1b73bb0 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -67,7 +67,7 @@ struct elo {
 	char phys[32];
 };
 
-static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_10(struct elo *elo, unsigned char data)
 {
 	struct input_dev *dev = elo->dev;
 
@@ -95,7 +95,6 @@ static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_r
 				break;
 			}
 			if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
-				input_regs(dev, regs);
 				input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
 				input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
 				if (elo->data[2] & ELO10_PRESSURE)
@@ -116,7 +115,7 @@ static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_r
 	elo->csum += data;
 }
 
-static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_6(struct elo *elo, unsigned char data)
 {
 	struct input_dev *dev = elo->dev;
 
@@ -134,7 +133,6 @@ static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_re
 				break;
 			}
 
-			input_regs(dev, regs);
 			input_report_abs(dev, ABS_X, ((elo->data[0] & 0x3f) << 6) | (elo->data[1] & 0x3f));
 			input_report_abs(dev, ABS_Y, ((elo->data[2] & 0x3f) << 6) | (elo->data[3] & 0x3f));
 
@@ -164,7 +162,7 @@ static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_re
 	}
 }
 
-static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_3(struct elo *elo, unsigned char data)
 {
 	struct input_dev *dev = elo->dev;
 
@@ -177,7 +175,6 @@ static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_re
 				elo->idx = 0;
 			break;
 		case 2:
-			input_regs(dev, regs);
 			input_report_key(dev, BTN_TOUCH, !(elo->data[1] & 0x80));
 			input_report_abs(dev, ABS_X, elo->data[1]);
 			input_report_abs(dev, ABS_Y, elo->data[2]);
@@ -188,22 +185,22 @@ static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_re
 }
 
 static irqreturn_t elo_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct elo *elo = serio_get_drvdata(serio);
 
 	switch(elo->id) {
 		case 0:
-			elo_process_data_10(elo, data, regs);
+			elo_process_data_10(elo, data);
 			break;
 
 		case 1:
 		case 2:
-			elo_process_data_6(elo, data, regs);
+			elo_process_data_6(elo, data);
 			break;
 
 		case 3:
-			elo_process_data_3(elo, data, regs);
+			elo_process_data_3(elo, data);
 			break;
 	}
 
diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
index b769b21973b..817c2198933 100644
--- a/drivers/input/touchscreen/gunze.c
+++ b/drivers/input/touchscreen/gunze.c
@@ -60,7 +60,7 @@ struct gunze {
 	char phys[32];
 };
 
-static void gunze_process_packet(struct gunze* gunze, struct pt_regs *regs)
+static void gunze_process_packet(struct gunze* gunze)
 {
 	struct input_dev *dev = gunze->dev;
 
@@ -70,7 +70,6 @@ static void gunze_process_packet(struct gunze* gunze, struct pt_regs *regs)
 		return;
 	}
 
-	input_regs(dev, regs);
 	input_report_abs(dev, ABS_X, simple_strtoul(gunze->data + 1, NULL, 10));
 	input_report_abs(dev, ABS_Y, 1024 - simple_strtoul(gunze->data + 6, NULL, 10));
 	input_report_key(dev, BTN_TOUCH, gunze->data[0] == 'T');
@@ -78,12 +77,12 @@ static void gunze_process_packet(struct gunze* gunze, struct pt_regs *regs)
 }
 
 static irqreturn_t gunze_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct gunze* gunze = serio_get_drvdata(serio);
 
 	if (data == '\r') {
-		gunze_process_packet(gunze, regs);
+		gunze_process_packet(gunze);
 		gunze->idx = 0;
 	} else {
 		if (gunze->idx < GUNZE_MAX_LENGTH)
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index e2b91001877..d9e61ee05ea 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -106,19 +106,18 @@ struct h3600_dev {
 	char phys[32];
 };
 
-static irqreturn_t action_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t action_button_handler(int irq, void *dev_id)
 {
 	int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
 	struct input_dev *dev = (struct input_dev *) dev_id;
 
-	input_regs(dev, regs);
 	input_report_key(dev, KEY_ENTER, down);
 	input_sync(dev);
 
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t npower_button_handler(int irq, void *dev_id)
 {
 	int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
 	struct input_dev *dev = (struct input_dev *) dev_id;
@@ -127,7 +126,6 @@ static irqreturn_t npower_button_handler(int irq, void *dev_id, struct pt_regs *
 	 * This interrupt is only called when we release the key. So we have
 	 * to fake a key press.
 	 */
-	input_regs(dev, regs);
 	input_report_key(dev, KEY_SUSPEND, 1);
 	input_report_key(dev, KEY_SUSPEND, down);
 	input_sync(dev);
@@ -165,14 +163,12 @@ unsigned int h3600_flite_power(struct input_dev *dev, enum flite_pwr pwr)
  * packets. Some packets coming from serial are not touchscreen related. In
  * this case we send them off to be processed elsewhere.
  */
-static void h3600ts_process_packet(struct h3600_dev *ts, struct pt_regs *regs)
+static void h3600ts_process_packet(struct h3600_dev *ts)
 {
 	struct input_dev *dev = ts->dev;
 	static int touched = 0;
 	int key, down = 0;
 
-	input_regs(dev, regs);
-
 	switch (ts->event) {
 		/*
 		   Buttons - returned as a single byte
@@ -301,7 +297,7 @@ static int state;
 #define STATE_EOF       3       /* state where we decode checksum or EOF */
 
 static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
-                                     unsigned int flags, struct pt_regs *regs)
+                                     unsigned int flags)
 {
 	struct h3600_dev *ts = serio_get_drvdata(serio);
 
@@ -333,7 +329,7 @@ static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
 		case STATE_EOF:
 			state = STATE_SOF;
 			if (data == CHAR_EOF || data == ts->chksum)
-				h3600ts_process_packet(ts, regs);
+				h3600ts_process_packet(ts);
 			break;
 		default:
 			printk("Error3\n");
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
index ee6c2f40cdf..e31c6c55b2e 100644
--- a/drivers/input/touchscreen/hp680_ts_input.c
+++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -66,7 +66,7 @@ static void do_softint(void *data)
 	enable_irq(HP680_TS_IRQ);
 }
 
-static irqreturn_t hp680_ts_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hp680_ts_interrupt(int irq, void *dev)
 {
 	disable_irq_nosync(irq);
 	schedule_delayed_work(&work, HZ / 20);
diff --git a/drivers/input/touchscreen/mk712.c b/drivers/input/touchscreen/mk712.c
index 3226830eea0..4cbcaa6a71e 100644
--- a/drivers/input/touchscreen/mk712.c
+++ b/drivers/input/touchscreen/mk712.c
@@ -80,7 +80,7 @@ MODULE_PARM_DESC(irq, "IRQ of MK712 touchscreen controller");
 static struct input_dev *mk712_dev;
 static DEFINE_SPINLOCK(mk712_lock);
 
-static irqreturn_t mk712_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t mk712_interrupt(int irq, void *dev_id)
 {
 	unsigned char status;
 	static int debounce = 1;
@@ -88,7 +88,6 @@ static irqreturn_t mk712_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	static unsigned short last_y;
 
 	spin_lock(&mk712_lock);
-	input_regs(mk712_dev, regs);
 
 	status = inb(mk712_io + MK712_STATUS);
 
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index 8647a905df8..3b4c61664b6 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -63,12 +63,11 @@ struct mtouch {
 	char phys[32];
 };
 
-static void mtouch_process_format_tablet(struct mtouch *mtouch, struct pt_regs *regs)
+static void mtouch_process_format_tablet(struct mtouch *mtouch)
 {
 	struct input_dev *dev = mtouch->dev;
 
 	if (MTOUCH_FORMAT_TABLET_LENGTH == ++mtouch->idx) {
-		input_regs(dev, regs);
 		input_report_abs(dev, ABS_X, MTOUCH_GET_XC(mtouch->data));
 		input_report_abs(dev, ABS_Y, MTOUCH_MAX_YC - MTOUCH_GET_YC(mtouch->data));
 		input_report_key(dev, BTN_TOUCH, MTOUCH_GET_TOUCHED(mtouch->data));
@@ -78,7 +77,7 @@ static void mtouch_process_format_tablet(struct mtouch *mtouch, struct pt_regs *
 	}
 }
 
-static void mtouch_process_response(struct mtouch *mtouch, struct pt_regs *regs)
+static void mtouch_process_response(struct mtouch *mtouch)
 {
 	if (MTOUCH_RESPONSE_END_BYTE == mtouch->data[mtouch->idx++]) {
 		/* FIXME - process response */
@@ -90,16 +89,16 @@ static void mtouch_process_response(struct mtouch *mtouch, struct pt_regs *regs)
 }
 
 static irqreturn_t mtouch_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct mtouch* mtouch = serio_get_drvdata(serio);
 
 	mtouch->data[mtouch->idx] = data;
 
 	if (MTOUCH_FORMAT_TABLET_STATUS_BIT & mtouch->data[0])
-		mtouch_process_format_tablet(mtouch, regs);
+		mtouch_process_format_tablet(mtouch);
 	else if (MTOUCH_RESPONSE_BEGIN_BYTE == mtouch->data[0])
-		mtouch_process_response(mtouch, regs);
+		mtouch_process_response(mtouch);
 	else
 		printk(KERN_DEBUG "mtouch.c: unknown/unsynchronized data from device, byte %x\n",mtouch->data[0]);
 
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index f7370109d43..6c7d0c2c76c 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -46,7 +46,7 @@ struct pm {
 };
 
 static irqreturn_t pm_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct pm *pm = serio_get_drvdata(serio);
 	struct input_dev *dev = pm->dev;
@@ -55,7 +55,6 @@ static irqreturn_t pm_interrupt(struct serio *serio,
 
 	if (pm->data[0] & 0x80) {
 		if (PM_MAX_LENGTH == ++pm->idx) {
-			input_regs(dev, regs);
 			input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
 			input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
 			input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
index 1c89fa53865..c74f74e57af 100644
--- a/drivers/input/touchscreen/touchright.c
+++ b/drivers/input/touchscreen/touchright.c
@@ -56,7 +56,7 @@ struct tr {
 };
 
 static irqreturn_t tr_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct tr *tr = serio_get_drvdata(serio);
 	struct input_dev *dev = tr->dev;
@@ -65,7 +65,6 @@ static irqreturn_t tr_interrupt(struct serio *serio,
 
 	if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) {
 		if (++tr->idx == TR_LENGTH) {
-			input_regs(dev, regs);
 			input_report_abs(dev, ABS_X,
 				(tr->data[1] << 5) | (tr->data[2] >> 1));
 			input_report_abs(dev, ABS_Y,
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
index a7b4c755958..9911820fa2f 100644
--- a/drivers/input/touchscreen/touchwin.c
+++ b/drivers/input/touchscreen/touchwin.c
@@ -60,7 +60,7 @@ struct tw {
 };
 
 static irqreturn_t tw_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags, struct pt_regs *regs)
+		unsigned char data, unsigned int flags)
 {
 	struct tw *tw = serio_get_drvdata(serio);
 	struct input_dev *dev = tw->dev;
@@ -70,7 +70,6 @@ static irqreturn_t tw_interrupt(struct serio *serio,
 		tw->data[tw->idx++] = data;
 		/* verify length and that the two Y's are the same */
 		if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
-			input_regs(dev, regs);
 			input_report_abs(dev, ABS_X, tw->data[0]);
 			input_report_abs(dev, ABS_Y, tw->data[1]);
 			input_report_key(dev, BTN_TOUCH, 1);