diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c
index 76d83ad..6a1a568 100644
--- a/drivers/serial/21285.c
+++ b/drivers/serial/21285.c
@@ -85,7 +85,7 @@
 {
 }
 
-static irqreturn_t serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial21285_rx_chars(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct tty_struct *tty = port->info->tty;
@@ -123,7 +123,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial21285_tx_chars(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct circ_buf *xmit = &port->info->xmit;
diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index bac853c..9b8b585 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -275,8 +275,7 @@
 	return;
 }
 
-static void receive_chars(struct m68k_serial *info, struct pt_regs *regs,
-			  unsigned short rx)
+static void receive_chars(struct m68k_serial *info, unsigned short rx)
 {
 	struct tty_struct *tty = info->tty;
 	m68328_uart *uart = &uart_addr[info->line];
@@ -377,7 +376,7 @@
 /*
  * This is the serial driver's generic interrupt routine
  */
-irqreturn_t rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+irqreturn_t rs_interrupt(int irq, void *dev_id)
 {
 	struct m68k_serial * info;
 	m68328_uart *uart;
@@ -394,10 +393,10 @@
 #ifdef USE_INTS
 	tx = uart->utx.w;
 
-	if (rx & URX_DATA_READY) receive_chars(info, regs, rx);
+	if (rx & URX_DATA_READY) receive_chars(info, rx);
 	if (tx & UTX_TX_AVAIL)   transmit_chars(info);
 #else
-	receive_chars(info, regs, rx);		
+	receive_chars(info, rx);		
 #endif
 	return IRQ_HANDLED;
 }
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index 1b299e8..4e56ec8 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -612,7 +612,7 @@
  * This is the serial driver's interrupt routine for a single port
  */
 /* static void rs_360_interrupt(void *dev_id) */ /* until and if we start servicing irqs here */
-static void rs_360_interrupt(int vec, void *dev_id, struct pt_regs *fp)
+static void rs_360_interrupt(int vec, void *dev_id)
 {
 	u_char	events;
 	int	idx;
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index cc2a205..e34bd03 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1175,7 +1175,7 @@
 }
 
 static void
-receive_chars(struct uart_8250_port *up, int *status, struct pt_regs *regs)
+receive_chars(struct uart_8250_port *up, int *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned char ch, lsr = *status;
@@ -1233,7 +1233,7 @@
 			else if (lsr & UART_LSR_FE)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto ignore_char;
 
 		uart_insert_char(&up->port, lsr, UART_LSR_OE, ch, flag);
@@ -1309,7 +1309,7 @@
  * This handles the interrupt from one port.
  */
 static inline void
-serial8250_handle_port(struct uart_8250_port *up, struct pt_regs *regs)
+serial8250_handle_port(struct uart_8250_port *up)
 {
 	unsigned int status;
 
@@ -1320,7 +1320,7 @@
 	DEBUG_INTR("status = %x...", status);
 
 	if (status & UART_LSR_DR)
-		receive_chars(up, &status, regs);
+		receive_chars(up, &status);
 	check_modem_status(up);
 	if (status & UART_LSR_THRE)
 		transmit_chars(up);
@@ -1342,7 +1342,7 @@
  * This means we need to loop through all ports. checking that they
  * don't have an interrupt pending.
  */
-static irqreturn_t serial8250_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial8250_interrupt(int irq, void *dev_id)
 {
 	struct irq_info *i = dev_id;
 	struct list_head *l, *end = NULL;
@@ -1361,7 +1361,7 @@
 
 		iir = serial_in(up, UART_IIR);
 		if (!(iir & UART_IIR_NO_INT)) {
-			serial8250_handle_port(up, regs);
+			serial8250_handle_port(up);
 
 			handled = 1;
 
@@ -1461,7 +1461,7 @@
 
 	iir = serial_in(up, UART_IIR);
 	if (!(iir & UART_IIR_NO_INT))
-		serial8250_handle_port(up, NULL);
+		serial8250_handle_port(up);
 
 	timeout = up->port.timeout;
 	timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 7311d84..4213fab 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -111,12 +111,7 @@
 	writel(cr, port->membase + UART010_CR);
 }
 
-static void
-#ifdef SUPPORT_SYSRQ
-pl010_rx_chars(struct uart_port *port, struct pt_regs *regs)
-#else
-pl010_rx_chars(struct uart_port *port)
-#endif
+static void pl010_rx_chars(struct uart_port *port)
 {
 	struct tty_struct *tty = port->info->tty;
 	unsigned int status, ch, flag, rsr, max_count = 256;
@@ -156,7 +151,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(port, ch, regs))
+		if (uart_handle_sysrq_char(port, ch))
 			goto ignore_char;
 
 		uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag);
@@ -227,7 +222,7 @@
 	wake_up_interruptible(&uap->port.info->delta_msr_wait);
 }
 
-static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pl010_int(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT;
@@ -239,11 +234,7 @@
 	if (status) {
 		do {
 			if (status & (UART010_IIR_RTIS | UART010_IIR_RIS))
-#ifdef SUPPORT_SYSRQ
-				pl010_rx_chars(port, regs);
-#else
 				pl010_rx_chars(port);
-#endif
 			if (status & UART010_IIR_MIS)
 				pl010_modem_status(port);
 			if (status & UART010_IIR_TIS)
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index a8d7124..d503625 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -107,12 +107,7 @@
 	writew(uap->im, uap->port.membase + UART011_IMSC);
 }
 
-static void
-#ifdef SUPPORT_SYSRQ
-pl011_rx_chars(struct uart_amba_port *uap, struct pt_regs *regs)
-#else
-pl011_rx_chars(struct uart_amba_port *uap)
-#endif
+static void pl011_rx_chars(struct uart_amba_port *uap)
 {
 	struct tty_struct *tty = uap->port.info->tty;
 	unsigned int status, ch, flag, max_count = 256;
@@ -150,7 +145,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(&uap->port, ch & 255, regs))
+		if (uart_handle_sysrq_char(&uap->port, ch & 255))
 			goto ignore_char;
 
 		uart_insert_char(&uap->port, ch, UART011_DR_OE, ch, flag);
@@ -218,7 +213,7 @@
 	wake_up_interruptible(&uap->port.info->delta_msr_wait);
 }
 
-static irqreturn_t pl011_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pl011_int(int irq, void *dev_id)
 {
 	struct uart_amba_port *uap = dev_id;
 	unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT;
@@ -234,11 +229,7 @@
 			       uap->port.membase + UART011_ICR);
 
 			if (status & (UART011_RTIS|UART011_RXIS))
-#ifdef SUPPORT_SYSRQ
-				pl011_rx_chars(uap, regs);
-#else
 				pl011_rx_chars(uap);
-#endif
 			if (status & (UART011_DSRMIS|UART011_DCDMIS|
 				      UART011_CTSMIS|UART011_RIMIS))
 				pl011_modem_status(uap);
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 955c46d..391a1f4 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -249,7 +249,7 @@
 /*
  * Characters received (called from interrupt handler)
  */
-static void atmel_rx_chars(struct uart_port *port, struct pt_regs *regs)
+static void atmel_rx_chars(struct uart_port *port)
 {
 	struct tty_struct *tty = port->info->tty;
 	unsigned int status, ch, flg;
@@ -291,7 +291,7 @@
 				flg = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(port, ch, regs))
+		if (uart_handle_sysrq_char(port, ch))
 			goto ignore_char;
 
 		uart_insert_char(port, status, ATMEL_US_OVRE, ch, flg);
@@ -339,7 +339,7 @@
 /*
  * Interrupt handler
  */
-static irqreturn_t atmel_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t atmel_interrupt(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
@@ -350,7 +350,7 @@
 	while (pending) {
 		/* Interrupt receive */
 		if (pending & ATMEL_US_RXRDY)
-			atmel_rx_chars(port, regs);
+			atmel_rx_chars(port);
 
 		// TODO: All reads to CSR will clear these interrupts!
 		if (pending & ATMEL_US_RIIC) port->icount.rng++;
diff --git a/drivers/serial/clps711x.c b/drivers/serial/clps711x.c
index f27d852..5980127 100644
--- a/drivers/serial/clps711x.c
+++ b/drivers/serial/clps711x.c
@@ -93,7 +93,7 @@
 {
 }
 
-static irqreturn_t clps711xuart_int_rx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t clps711xuart_int_rx(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct tty_struct *tty = port->info->tty;
@@ -131,7 +131,7 @@
 #endif
 		}
 
-		if (uart_handle_sysrq_char(port, ch, regs))
+		if (uart_handle_sysrq_char(port, ch))
 			goto ignore_char;
 
 		/*
@@ -147,7 +147,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct circ_buf *xmit = &port->info->xmit;
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index a0d6136..0abb544 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -248,7 +248,7 @@
 /*
  * Transmit characters, refill buffer descriptor, if possible
  */
-static void cpm_uart_int_tx(struct uart_port *port, struct pt_regs *regs)
+static void cpm_uart_int_tx(struct uart_port *port)
 {
 	pr_debug("CPM uart[%d]:TX INT\n", port->line);
 
@@ -258,7 +258,7 @@
 /*
  * Receive characters
  */
-static void cpm_uart_int_rx(struct uart_port *port, struct pt_regs *regs)
+static void cpm_uart_int_rx(struct uart_port *port)
 {
 	int i;
 	unsigned char ch, *cp;
@@ -304,7 +304,7 @@
 			if (status &
 			    (BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV))
 				goto handle_error;
-			if (uart_handle_sysrq_char(port, ch, regs))
+			if (uart_handle_sysrq_char(port, ch))
 				continue;
 
 		      error_return:
@@ -373,7 +373,7 @@
 /*
  * Asynchron mode interrupt handler
  */
-static irqreturn_t cpm_uart_int(int irq, void *data, struct pt_regs *regs)
+static irqreturn_t cpm_uart_int(int irq, void *data)
 {
 	u8 events;
 	struct uart_port *port = (struct uart_port *)data;
@@ -389,18 +389,18 @@
 		if (events & SMCM_BRKE)
 			uart_handle_break(port);
 		if (events & SMCM_RX)
-			cpm_uart_int_rx(port, regs);
+			cpm_uart_int_rx(port);
 		if (events & SMCM_TX)
-			cpm_uart_int_tx(port, regs);
+			cpm_uart_int_tx(port);
 	} else {
 		events = sccp->scc_scce;
 		sccp->scc_scce = events;
 		if (events & UART_SCCM_BRKE)
 			uart_handle_break(port);
 		if (events & UART_SCCM_RX)
-			cpm_uart_int_rx(port, regs);
+			cpm_uart_int_rx(port);
 		if (events & UART_SCCM_TX)
-			cpm_uart_int_tx(port, regs);
+			cpm_uart_int_tx(port);
 	}
 	return (events) ? IRQ_HANDLED : IRQ_NONE;
 }
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 9851d9e..7a24e53 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -2346,7 +2346,7 @@
 */
 
 static irqreturn_t
-tr_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+tr_interrupt(int irq, void *dev_id)
 {
 	struct e100_serial *info;
 	unsigned long ireg;
@@ -2395,7 +2395,7 @@
 /* dma input channel interrupt handler */
 
 static irqreturn_t
-rec_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+rec_interrupt(int irq, void *dev_id)
 {
 	struct e100_serial *info;
 	unsigned long ireg;
@@ -3054,7 +3054,7 @@
  * ser_int duration: just sending: 8-15 us normally, up to 73 us
  */
 static irqreturn_t
-ser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+ser_interrupt(int irq, void *dev_id)
 {
 	static volatile int tx_started = 0;
 	struct e100_serial *info;
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index 8a98aae..53662b3 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -339,7 +339,7 @@
  * It deals with the multiple ports.
  * ------------------------------------------------------------
  */
-static irqreturn_t dz_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t dz_interrupt(int irq, void *dev)
 {
 	struct dz_port *dport;
 	unsigned short status;
diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c
index a3c00a2..8aa0f641 100644
--- a/drivers/serial/icom.c
+++ b/drivers/serial/icom.c
@@ -844,8 +844,7 @@
 	spin_unlock(&icom_port->uart_port.lock);
 }
 
-static irqreturn_t icom_interrupt(int irq, void *dev_id,
-				  struct pt_regs *regs)
+static irqreturn_t icom_interrupt(int irq, void *dev_id)
 {
 	void __iomem * int_reg;
 	u32 adapter_interrupts;
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 4a142d6..ee5c782 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -182,7 +182,7 @@
 		imx_transmit_buffer(sport);
 }
 
-static irqreturn_t imx_rtsint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t imx_rtsint(int irq, void *dev_id)
 {
 	struct imx_port *sport = (struct imx_port *)dev_id;
 	unsigned int val = USR1((u32)sport->port.membase)&USR1_RTSS;
@@ -198,7 +198,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t imx_txint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t imx_txint(int irq, void *dev_id)
 {
 	struct imx_port *sport = (struct imx_port *)dev_id;
 	struct circ_buf *xmit = &sport->port.info->xmit;
@@ -227,7 +227,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t imx_rxint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t imx_rxint(int irq, void *dev_id)
 {
 	struct imx_port *sport = dev_id;
 	unsigned int rx,flg,ignored = 0;
@@ -248,7 +248,7 @@
 		}
 
 		if (uart_handle_sysrq_char
-		            (&sport->port, (unsigned char)rx, regs))
+		            (&sport->port, (unsigned char)rx))
 			goto ignore_char;
 
 		if( rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) )
diff --git a/drivers/serial/ioc3_serial.c b/drivers/serial/ioc3_serial.c
index 8097cd9..2308d26 100644
--- a/drivers/serial/ioc3_serial.c
+++ b/drivers/serial/ioc3_serial.c
@@ -1428,13 +1428,12 @@
  * @is : submodule
  * @idd: driver data
  * @pending: interrupts to handle
- * @regs: pt_regs
  */
 
 static int inline
 ioc3uart_intr_one(struct ioc3_submodule *is,
 			struct ioc3_driver_data *idd,
-			unsigned int pending, struct pt_regs *regs)
+			unsigned int pending)
 {
 	int port_num = GET_PORT_FROM_SIO_IR(pending);
 	struct port_hooks *hooks;
@@ -1628,13 +1627,12 @@
  * @is : submodule
  * @idd: driver data
  * @pending: interrupts to handle
- * @regs: pt_regs
  *
  */
 
 static int ioc3uart_intr(struct ioc3_submodule *is,
 			struct ioc3_driver_data *idd,
-			unsigned int pending, struct pt_regs *regs)
+			unsigned int pending)
 {
 	int ret = 0;
 
@@ -1644,9 +1642,9 @@
 	 */
 
 	if (pending & SIO_IR_SA)
-		ret |= ioc3uart_intr_one(is, idd, pending & SIO_IR_SA, regs);
+		ret |= ioc3uart_intr_one(is, idd, pending & SIO_IR_SA);
 	if (pending & SIO_IR_SB)
-		ret |= ioc3uart_intr_one(is, idd, pending & SIO_IR_SB, regs);
+		ret |= ioc3uart_intr_one(is, idd, pending & SIO_IR_SB);
 
 	return ret;
 }
diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index 5ec4716..98ce88d 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -987,10 +987,9 @@
  * ioc4_intr - Top level IOC4 interrupt handler.
  * @irq: irq value
  * @arg: handler arg
- * @regs: registers
  */
 
-static irqreturn_t ioc4_intr(int irq, void *arg, struct pt_regs *regs)
+static irqreturn_t ioc4_intr(int irq, void *arg)
 {
 	struct ioc4_soft *soft;
 	uint32_t this_ir, this_mir;
diff --git a/drivers/serial/ip22zilog.c b/drivers/serial/ip22zilog.c
index dbf13c0..dca6c1b 100644
--- a/drivers/serial/ip22zilog.c
+++ b/drivers/serial/ip22zilog.c
@@ -252,8 +252,7 @@
 }
 
 static void ip22zilog_receive_chars(struct uart_ip22zilog_port *up,
-				   struct zilog_channel *channel,
-				   struct pt_regs *regs)
+				   struct zilog_channel *channel)
 {
 	struct tty_struct *tty = up->port.info->tty;	/* XXX info==NULL? */
 
@@ -319,7 +318,7 @@
 			else if (r1 & CRC_ERR)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto next_char;
 
 		if (up->port.ignore_status_mask == 0xff ||
@@ -339,8 +338,7 @@
 }
 
 static void ip22zilog_status_handle(struct uart_ip22zilog_port *up,
-				   struct zilog_channel *channel,
-				   struct pt_regs *regs)
+				   struct zilog_channel *channel)
 {
 	unsigned char status;
 
@@ -443,7 +441,7 @@
 	ZS_WSYNC(channel);
 }
 
-static irqreturn_t ip22zilog_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ip22zilog_interrupt(int irq, void *dev_id)
 {
 	struct uart_ip22zilog_port *up = dev_id;
 
@@ -462,9 +460,9 @@
 			ZS_WSYNC(channel);
 
 			if (r3 & CHARxIP)
-				ip22zilog_receive_chars(up, channel, regs);
+				ip22zilog_receive_chars(up, channel);
 			if (r3 & CHAEXT)
-				ip22zilog_status_handle(up, channel, regs);
+				ip22zilog_status_handle(up, channel);
 			if (r3 & CHATxIP)
 				ip22zilog_transmit_chars(up, channel);
 		}
@@ -481,9 +479,9 @@
 			ZS_WSYNC(channel);
 
 			if (r3 & CHBRxIP)
-				ip22zilog_receive_chars(up, channel, regs);
+				ip22zilog_receive_chars(up, channel);
 			if (r3 & CHBEXT)
-				ip22zilog_status_handle(up, channel, regs);
+				ip22zilog_status_handle(up, channel);
 			if (r3 & CHBTxIP)
 				ip22zilog_transmit_chars(up, channel);
 		}
diff --git a/drivers/serial/jsm/jsm.h b/drivers/serial/jsm/jsm.h
index 043f50b..12c934a 100644
--- a/drivers/serial/jsm/jsm.h
+++ b/drivers/serial/jsm/jsm.h
@@ -99,7 +99,7 @@
  * Per board operations structure					*
  ************************************************************************/
 struct board_ops {
-	irqreturn_t (*intr) (int irq, void *voidbrd, struct pt_regs *regs);
+	irq_handler_t intr;
 	void (*uart_init) (struct jsm_channel *ch);
 	void (*uart_off) (struct jsm_channel *ch);
 	void (*param) (struct jsm_channel *ch);
diff --git a/drivers/serial/jsm/jsm_neo.c b/drivers/serial/jsm/jsm_neo.c
index a5fc589..8fa31e6 100644
--- a/drivers/serial/jsm/jsm_neo.c
+++ b/drivers/serial/jsm/jsm_neo.c
@@ -1114,7 +1114,7 @@
  *
  * Neo specific interrupt handler.
  */
-static irqreturn_t neo_intr(int irq, void *voidbrd, struct pt_regs *regs)
+static irqreturn_t neo_intr(int irq, void *voidbrd)
 {
 	struct jsm_board *brd = (struct jsm_board *) voidbrd;
 	struct jsm_channel *ch;
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index 28c9ce6..c85ac1a 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -323,8 +323,7 @@
 	serial_out(up, UART_IER, up->ier);
 }
 
-static void receive_chars(struct uart_sio_port *up, int *status,
-			  struct pt_regs *regs)
+static void receive_chars(struct uart_sio_port *up, int *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned char ch;
@@ -378,7 +377,7 @@
 			else if (*status & UART_LSR_FE)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto ignore_char;
 		if ((*status & up->port.ignore_status_mask) == 0)
 			tty_insert_flip_char(tty, ch, flag);
@@ -439,12 +438,12 @@
  * This handles the interrupt from one port.
  */
 static inline void m32r_sio_handle_port(struct uart_sio_port *up,
-	unsigned int status, struct pt_regs *regs)
+	unsigned int status)
 {
 	DEBUG_INTR("status = %x...", status);
 
 	if (status & 0x04)
-		receive_chars(up, &status, regs);
+		receive_chars(up, &status);
 	if (status & 0x01)
 		transmit_chars(up);
 }
@@ -463,8 +462,7 @@
  * This means we need to loop through all ports. checking that they
  * don't have an interrupt pending.
  */
-static irqreturn_t m32r_sio_interrupt(int irq, void *dev_id,
-	struct pt_regs *regs)
+static irqreturn_t m32r_sio_interrupt(int irq, void *dev_id)
 {
 	struct irq_info *i = dev_id;
 	struct list_head *l, *end = NULL;
@@ -492,7 +490,7 @@
 		sts = sio_in(up, SIOSTS);
 		if (sts & 0x5) {
 			spin_lock(&up->port.lock);
-			m32r_sio_handle_port(up, sts, regs);
+			m32r_sio_handle_port(up, sts);
 			spin_unlock(&up->port.lock);
 
 			end = NULL;
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index 00d7859..aee1b31 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -385,7 +385,7 @@
 /*
  * This is the serial driver's generic interrupt routine
  */
-irqreturn_t mcfrs_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t mcfrs_interrupt(int irq, void *dev_id)
 {
 	struct mcf_serial	*info;
 	unsigned char		isr;
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index dbad0e3..039c2fd 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -85,7 +85,7 @@
 
 
 /* Forward declaration of the interruption handling routine */
-static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id,struct pt_regs *regs);
+static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id);
 
 
 /* Simple macro to test if a port is console or not. This one is taken
@@ -410,7 +410,7 @@
 /* ======================================================================== */
 	
 static inline int
-mpc52xx_uart_int_rx_chars(struct uart_port *port, struct pt_regs *regs)
+mpc52xx_uart_int_rx_chars(struct uart_port *port)
 {
 	struct tty_struct *tty = port->info->tty;
 	unsigned char ch, flag;
@@ -425,7 +425,7 @@
 
 		/* Handle sysreq char */
 #ifdef SUPPORT_SYSRQ
-		if (uart_handle_sysrq_char(port, ch, regs)) {
+		if (uart_handle_sysrq_char(port, ch)) {
 			port->sysrq = 0;
 			continue;
 		}
@@ -510,7 +510,7 @@
 }
 
 static irqreturn_t 
-mpc52xx_uart_int(int irq, void *dev_id, struct pt_regs *regs)
+mpc52xx_uart_int(int irq, void *dev_id)
 {
 	struct uart_port *port = (struct uart_port *) dev_id;
 	unsigned long pass = ISR_PASS_LIMIT;
@@ -539,7 +539,7 @@
 		/* Do we need to receive chars ? */
 		/* For this RX interrupts must be on and some chars waiting */
 		if ( status & MPC52xx_PSC_IMR_RXRDY )
-			keepgoing |= mpc52xx_uart_int_rx_chars(port, regs);
+			keepgoing |= mpc52xx_uart_int_rx_chars(port);
 
 		/* Do we need to send chars ? */
 		/* For this, TX must be ready and TX interrupt enabled */
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index 704243c..8eea69f 100644
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -992,7 +992,7 @@
  */
 
 static inline int
-mpsc_rx_intr(struct mpsc_port_info *pi, struct pt_regs *regs)
+mpsc_rx_intr(struct mpsc_port_info *pi)
 {
 	struct mpsc_rx_desc *rxre;
 	struct tty_struct *tty = pi->port.info->tty;
@@ -1072,7 +1072,7 @@
 				flag = TTY_PARITY;
 		}
 
-		if (uart_handle_sysrq_char(&pi->port, *bp, regs)) {
+		if (uart_handle_sysrq_char(&pi->port, *bp)) {
 			bp++;
 			bytes_in--;
 			goto next_frame;
@@ -1257,7 +1257,7 @@
  * handling those descriptors, we restart the Rx/Tx engines if they're stopped.
  */
 static irqreturn_t
-mpsc_sdma_intr(int irq, void *dev_id, struct pt_regs *regs)
+mpsc_sdma_intr(int irq, void *dev_id)
 {
 	struct mpsc_port_info *pi = dev_id;
 	ulong iflags;
@@ -1267,7 +1267,7 @@
 
 	spin_lock_irqsave(&pi->port.lock, iflags);
 	mpsc_sdma_intr_ack(pi);
-	if (mpsc_rx_intr(pi, regs))
+	if (mpsc_rx_intr(pi))
 		rc = IRQ_HANDLED;
 	if (mpsc_tx_intr(pi))
 		rc = IRQ_HANDLED;
diff --git a/drivers/serial/netx-serial.c b/drivers/serial/netx-serial.c
index 7502109..e92d7e1 100644
--- a/drivers/serial/netx-serial.c
+++ b/drivers/serial/netx-serial.c
@@ -200,7 +200,7 @@
 		uart_write_wakeup(port);
 }
 
-static void netx_rxint(struct uart_port *port, struct pt_regs *regs)
+static void netx_rxint(struct uart_port *port)
 {
 	unsigned char rx, flg, status;
 	struct tty_struct *tty = port->info->tty;
@@ -235,7 +235,7 @@
 				flg = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(port, rx, regs))
+		if (uart_handle_sysrq_char(port, rx))
 			continue;
 
 		uart_insert_char(port, status, SR_OE, rx, flg);
@@ -245,7 +245,7 @@
 	return;
 }
 
-static irqreturn_t netx_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t netx_int(int irq, void *dev_id)
 {
 	struct uart_port *port = (struct uart_port *)dev_id;
 	unsigned long flags;
@@ -256,7 +256,7 @@
 	status = readl(port->membase + UART_IIR) & IIR_MASK;
 	while (status) {
 		if (status & IIR_RIS)
-			netx_rxint(port, regs);
+			netx_rxint(port);
 		if (status & IIR_TIS)
 			netx_txint(port);
 		if (status & IIR_MIS) {
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index a3b99ca..bf9809e 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -204,8 +204,7 @@
 	}
 }
 
-static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap,
-					    struct pt_regs *regs)
+static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap)
 {
 	struct tty_struct *tty = NULL;
 	unsigned char ch, r1, drop, error, flag;
@@ -267,7 +266,7 @@
 		if (uap->port.sysrq) {
 			int swallow;
 			spin_unlock(&uap->port.lock);
-			swallow = uart_handle_sysrq_char(&uap->port, ch, regs);
+			swallow = uart_handle_sysrq_char(&uap->port, ch);
 			spin_lock(&uap->port.lock);
 			if (swallow)
 				goto next_char;
@@ -335,7 +334,7 @@
 	return tty;
 }
 
-static void pmz_status_handle(struct uart_pmac_port *uap, struct pt_regs *regs)
+static void pmz_status_handle(struct uart_pmac_port *uap)
 {
 	unsigned char status;
 
@@ -438,7 +437,7 @@
 }
 
 /* Hrm... we register that twice, fixme later.... */
-static irqreturn_t pmz_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pmz_interrupt(int irq, void *dev_id)
 {
 	struct uart_pmac_port *uap = dev_id;
 	struct uart_pmac_port *uap_a;
@@ -462,9 +461,9 @@
 		write_zsreg(uap_a, R0, RES_H_IUS);
 		zssync(uap_a);		
        		if (r3 & CHAEXT)
-       			pmz_status_handle(uap_a, regs);
+       			pmz_status_handle(uap_a);
 		if (r3 & CHARxIP)
-			tty = pmz_receive_chars(uap_a, regs);
+			tty = pmz_receive_chars(uap_a);
        		if (r3 & CHATxIP)
        			pmz_transmit_chars(uap_a);
 	        rc = IRQ_HANDLED;
@@ -482,9 +481,9 @@
 		write_zsreg(uap_b, R0, RES_H_IUS);
 		zssync(uap_b);
        		if (r3 & CHBEXT)
-       			pmz_status_handle(uap_b, regs);
+       			pmz_status_handle(uap_b);
        	       	if (r3 & CHBRxIP)
-       			tty = pmz_receive_chars(uap_b, regs);
+       			tty = pmz_receive_chars(uap_b);
        		if (r3 & CHBTxIP)
        			pmz_transmit_chars(uap_b);
 	       	rc = IRQ_HANDLED;
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index a720953..846089f 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -98,8 +98,7 @@
 	serial_out(up, UART_IER, up->ier);
 }
 
-static inline void
-receive_chars(struct uart_pxa_port *up, int *status, struct pt_regs *regs)
+static inline void receive_chars(struct uart_pxa_port *up, int *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned int ch, flag;
@@ -153,7 +152,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto ignore_char;
 
 		uart_insert_char(&up->port, *status, UART_LSR_OE, ch, flag);
@@ -231,8 +230,7 @@
 /*
  * This handles the interrupt from one port.
  */
-static inline irqreturn_t
-serial_pxa_irq(int irq, void *dev_id, struct pt_regs *regs)
+static inline irqreturn_t serial_pxa_irq(int irq, void *dev_id)
 {
 	struct uart_pxa_port *up = (struct uart_pxa_port *)dev_id;
 	unsigned int iir, lsr;
@@ -242,7 +240,7 @@
 		return IRQ_NONE;
 	lsr = serial_in(up, UART_LSR);
 	if (lsr & UART_LSR_DR)
-		receive_chars(up, &lsr, regs);
+		receive_chars(up, &lsr);
 	check_modem_status(up);
 	if (lsr & UART_LSR_THRE)
 		transmit_chars(up);
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 95738a1..8dfc2dd 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -310,7 +310,7 @@
 #define S3C2410_UERSTAT_PARITY (0x1000)
 
 static irqreturn_t
-s3c24xx_serial_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
+s3c24xx_serial_rx_chars(int irq, void *dev_id)
 {
 	struct s3c24xx_uart_port *ourport = dev_id;
 	struct uart_port *port = &ourport->port;
@@ -379,7 +379,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(port, ch, regs))
+		if (uart_handle_sysrq_char(port, ch))
 			goto ignore_char;
 
 		uart_insert_char(port, uerstat, S3C2410_UERSTAT_OVERRUN, ch, flag);
@@ -393,7 +393,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id, struct pt_regs *regs)
+static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id)
 {
 	struct s3c24xx_uart_port *ourport = id;
 	struct uart_port *port = &ourport->port;
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index db3486d..d406526 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -190,7 +190,7 @@
 }
 
 static void
-sa1100_rx_chars(struct sa1100_port *sport, struct pt_regs *regs)
+sa1100_rx_chars(struct sa1100_port *sport)
 {
 	struct tty_struct *tty = sport->port.info->tty;
 	unsigned int status, ch, flg;
@@ -228,7 +228,7 @@
 #endif
 		}
 
-		if (uart_handle_sysrq_char(&sport->port, ch, regs))
+		if (uart_handle_sysrq_char(&sport->port, ch))
 			goto ignore_char;
 
 		uart_insert_char(&sport->port, status, UTSR1_TO_SM(UTSR1_ROR), ch, flg);
@@ -281,7 +281,7 @@
 		sa1100_stop_tx(&sport->port);
 }
 
-static irqreturn_t sa1100_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sa1100_int(int irq, void *dev_id)
 {
 	struct sa1100_port *sport = dev_id;
 	unsigned int status, pass_counter = 0;
@@ -294,7 +294,7 @@
 			/* Clear the receiver idle bit, if set */
 			if (status & UTSR0_RID)
 				UART_PUT_UTSR0(sport, UTSR0_RID);
-			sa1100_rx_chars(sport, regs);
+			sa1100_rx_chars(sport);
 		}
 
 		/* Clear the relevant break bits */
diff --git a/drivers/serial/serial_lh7a40x.c b/drivers/serial/serial_lh7a40x.c
index 23ddedb..5e1ac35 100644
--- a/drivers/serial/serial_lh7a40x.c
+++ b/drivers/serial/serial_lh7a40x.c
@@ -135,12 +135,7 @@
 	BIT_SET (port, UART_R_INTEN, ModemInt);
 }
 
-static void
-#ifdef SUPPORT_SYSRQ
-lh7a40xuart_rx_chars (struct uart_port* port, struct pt_regs* regs)
-#else
-lh7a40xuart_rx_chars (struct uart_port* port)
-#endif
+static void lh7a40xuart_rx_chars (struct uart_port* port)
 {
 	struct tty_struct* tty = port->info->tty;
 	int cbRxMax = 256;	/* (Gross) limit on receive */
@@ -177,7 +172,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char (port, (unsigned char) data, regs))
+		if (uart_handle_sysrq_char (port, (unsigned char) data))
 			continue;
 
 		uart_insert_char(port, data, RxOverrunError, data, flag);
@@ -248,8 +243,7 @@
 	wake_up_interruptible (&port->info->delta_msr_wait);
 }
 
-static irqreturn_t lh7a40xuart_int (int irq, void* dev_id,
-				    struct pt_regs* regs)
+static irqreturn_t lh7a40xuart_int (int irq, void* dev_id)
 {
 	struct uart_port* port = dev_id;
 	unsigned int cLoopLimit = ISR_LOOP_LIMIT;
@@ -258,11 +252,7 @@
 
 	do {
 		if (isr & (RxInt | RxTimeoutInt))
-#ifdef SUPPORT_SYSRQ
-			lh7a40xuart_rx_chars(port, regs);
-#else
 			lh7a40xuart_rx_chars(port);
-#endif
 		if (isr & ModemInt)
 			lh7a40xuart_modem_status (port);
 		if (isr & TxInt)
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index ebd8d2b..2a48289 100644
--- a/drivers/serial/serial_txx9.c
+++ b/drivers/serial/serial_txx9.c
@@ -283,7 +283,7 @@
 }
 
 static inline void
-receive_chars(struct uart_txx9_port *up, unsigned int *status, struct pt_regs *regs)
+receive_chars(struct uart_txx9_port *up, unsigned int *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned char ch;
@@ -344,7 +344,7 @@
 			else if (disr & TXX9_SIDISR_UFER)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto ignore_char;
 
 		uart_insert_char(&up->port, disr, TXX9_SIDISR_UOER, ch, flag);
@@ -391,7 +391,7 @@
 		serial_txx9_stop_tx(&up->port);
 }
 
-static irqreturn_t serial_txx9_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial_txx9_interrupt(int irq, void *dev_id)
 {
 	int pass_counter = 0;
 	struct uart_txx9_port *up = dev_id;
@@ -409,7 +409,7 @@
 		}
 
 		if (status & TXX9_SIDISR_RDIS)
-			receive_chars(up, &status, regs);
+			receive_chars(up, &status);
 		if (status & TXX9_SIDISR_TDIS)
 			transmit_chars(up);
 		/* Clear TX/RX Int. Status */
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 5c025d1..266aa32 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -446,8 +446,7 @@
 /* On SH3, SCIF may read end-of-break as a space->mark char */
 #define STEPFN(c)  ({int __c=(c); (((__c-1)|(__c)) == -1); })
 
-static inline void sci_receive_chars(struct uart_port *port,
-				     struct pt_regs *regs)
+static inline void sci_receive_chars(struct uart_port *port)
 {
 	struct sci_port *sci_port = (struct sci_port *)port;
 	struct tty_struct *tty = port->info->tty;
@@ -476,7 +475,7 @@
 
 		if (port->type == PORT_SCI) {
 			char c = sci_in(port, SCxRDR);
-			if (uart_handle_sysrq_char(port, c, regs) || sci_port->break_flag)
+			if (uart_handle_sysrq_char(port, c) || sci_port->break_flag)
 				count = 0;
 			else {
 				tty_insert_flip_char(tty, c, TTY_NORMAL);
@@ -504,7 +503,7 @@
 					}
 				}
 #endif /* CONFIG_CPU_SH3 */
-				if (uart_handle_sysrq_char(port, c, regs)) {
+				if (uart_handle_sysrq_char(port, c)) {
 					count--; i--;
 					continue;
 				}
@@ -652,18 +651,18 @@
 	return copied;
 }
 
-static irqreturn_t sci_rx_interrupt(int irq, void *port, struct pt_regs *regs)
+static irqreturn_t sci_rx_interrupt(int irq, void *port)
 {
 	/* I think sci_receive_chars has to be called irrespective
 	 * of whether the I_IXOFF is set, otherwise, how is the interrupt
 	 * to be disabled?
 	 */
-	sci_receive_chars(port, regs);
+	sci_receive_chars(port);
 
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t sci_tx_interrupt(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t sci_tx_interrupt(int irq, void *ptr)
 {
 	struct uart_port *port = ptr;
 
@@ -674,7 +673,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t sci_er_interrupt(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t sci_er_interrupt(int irq, void *ptr)
 {
 	struct uart_port *port = ptr;
 
@@ -696,18 +695,18 @@
 			pr_debug("scif: overrun error\n");
 		}
 #endif
-		sci_rx_interrupt(irq, ptr, regs);
+		sci_rx_interrupt(irq, ptr);
 	}
 
 	sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));
 
 	/* Kick the transmission */
-	sci_tx_interrupt(irq, ptr, regs);
+	sci_tx_interrupt(irq, ptr);
 
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t sci_br_interrupt(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t sci_br_interrupt(int irq, void *ptr)
 {
 	struct uart_port *port = ptr;
 
@@ -724,7 +723,7 @@
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 {
         unsigned short ssr_status, scr_status;
         struct uart_port *port = ptr;
@@ -734,16 +733,16 @@
 
 	/* Tx Interrupt */
         if ((ssr_status & 0x0020) && (scr_status & 0x0080))
-                sci_tx_interrupt(irq, ptr, regs);
+                sci_tx_interrupt(irq, ptr);
 	/* Rx Interrupt */
         if ((ssr_status & 0x0002) && (scr_status & 0x0040))
-                sci_rx_interrupt(irq, ptr, regs);
+                sci_rx_interrupt(irq, ptr);
 	/* Error Interrupt */
         if ((ssr_status & 0x0080) && (scr_status & 0x0400))
-                sci_er_interrupt(irq, ptr, regs);
+                sci_er_interrupt(irq, ptr);
 	/* Break Interrupt */
         if ((ssr_status & 0x0010) && (scr_status & 0x0200))
-                sci_br_interrupt(irq, ptr, regs);
+                sci_br_interrupt(irq, ptr);
 
 	return IRQ_HANDLED;
 }
@@ -795,7 +794,7 @@
 static int sci_request_irq(struct sci_port *port)
 {
 	int i;
-	irqreturn_t (*handlers[4])(int irq, void *ptr, struct pt_regs *regs) = {
+	irqreturn_t (*handlers[4])(int irq, void *ptr) = {
 		sci_er_interrupt, sci_rx_interrupt, sci_tx_interrupt,
 		sci_br_interrupt,
 	};
diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c
index 2f148e5..709f93a 100644
--- a/drivers/serial/sn_console.c
+++ b/drivers/serial/sn_console.c
@@ -447,7 +447,6 @@
 /**
  * sn_receive_chars - Grab characters, pass them to tty layer
  * @port: Port to operate on
- * @regs: Saved registers (needed by uart_handle_sysrq_char)
  * @flags: irq flags
  *
  * Note: If we're not registered with the serial core infrastructure yet,
@@ -455,8 +454,7 @@
  *
  */
 static void
-sn_receive_chars(struct sn_cons_port *port, struct pt_regs *regs,
-		 unsigned long flags)
+sn_receive_chars(struct sn_cons_port *port, unsigned long flags)
 {
 	int ch;
 	struct tty_struct *tty;
@@ -494,7 +492,7 @@
                         sysrq_requested = 0;
                         if (ch && time_before(jiffies, sysrq_timeout)) {
                                 spin_unlock_irqrestore(&port->sc_port.lock, flags);
-                                handle_sysrq(ch, regs, NULL);
+                                handle_sysrq(ch, NULL);
                                 spin_lock_irqsave(&port->sc_port.lock, flags);
                                 /* ignore actual sysrq command char */
                                 continue;
@@ -615,10 +613,9 @@
  * sn_sal_interrupt - Handle console interrupts
  * @irq: irq #, useful for debug statements
  * @dev_id: our pointer to our port (sn_cons_port which contains the uart port)
- * @regs: Saved registers, used by sn_receive_chars for uart_handle_sysrq_char
  *
  */
-static irqreturn_t sn_sal_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sn_sal_interrupt(int irq, void *dev_id)
 {
 	struct sn_cons_port *port = (struct sn_cons_port *)dev_id;
 	unsigned long flags;
@@ -629,7 +626,7 @@
 
 	spin_lock_irqsave(&port->sc_port.lock, flags);
 	if (status & SAL_CONSOLE_INTR_RECV) {
-		sn_receive_chars(port, regs, flags);
+		sn_receive_chars(port, flags);
 	}
 	if (status & SAL_CONSOLE_INTR_XMIT) {
 		sn_transmit_chars(port, TRANSMIT_BUFFERED);
diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c
index f851f0f..03941d2 100644
--- a/drivers/serial/sunhv.c
+++ b/drivers/serial/sunhv.c
@@ -73,7 +73,7 @@
 
 static int hung_up = 0;
 
-static struct tty_struct *receive_chars(struct uart_port *port, struct pt_regs *regs)
+static struct tty_struct *receive_chars(struct uart_port *port)
 {
 	struct tty_struct *tty = NULL;
 	int saw_console_brk = 0;
@@ -106,7 +106,7 @@
 		}
 
 		if (tty == NULL) {
-			uart_handle_sysrq_char(port, c, regs);
+			uart_handle_sysrq_char(port, c);
 			continue;
 		}
 
@@ -119,7 +119,7 @@
 			flag = TTY_BREAK;
 		}
 
-		if (uart_handle_sysrq_char(port, c, regs))
+		if (uart_handle_sysrq_char(port, c))
 			continue;
 
 		if ((port->ignore_status_mask & IGNORE_ALL) ||
@@ -161,14 +161,14 @@
 		uart_write_wakeup(port);
 }
 
-static irqreturn_t sunhv_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunhv_interrupt(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct tty_struct *tty;
 	unsigned long flags;
 
 	spin_lock_irqsave(&port->lock, flags);
-	tty = receive_chars(port, regs);
+	tty = receive_chars(port);
 	transmit_chars(port);
 	spin_unlock_irqrestore(&port->lock, flags);
 
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index cfe20f7..08a7cd6 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -108,8 +108,7 @@
 
 static struct tty_struct *
 receive_chars(struct uart_sunsab_port *up,
-	      union sab82532_irq_status *stat,
-	      struct pt_regs *regs)
+	      union sab82532_irq_status *stat)
 {
 	struct tty_struct *tty = NULL;
 	unsigned char buf[32];
@@ -161,7 +160,7 @@
 		unsigned char ch = buf[i], flag;
 
 		if (tty == NULL) {
-			uart_handle_sysrq_char(&up->port, ch, regs);
+			uart_handle_sysrq_char(&up->port, ch);
 			continue;
 		}
 
@@ -208,7 +207,7 @@
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			continue;
 
 		if ((stat->sreg.isr0 & (up->port.ignore_status_mask & 0xff)) == 0 &&
@@ -301,7 +300,7 @@
 	wake_up_interruptible(&up->port.info->delta_msr_wait);
 }
 
-static irqreturn_t sunsab_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunsab_interrupt(int irq, void *dev_id)
 {
 	struct uart_sunsab_port *up = dev_id;
 	struct tty_struct *tty;
@@ -321,7 +320,7 @@
 		if ((status.sreg.isr0 & (SAB82532_ISR0_TCD | SAB82532_ISR0_TIME |
 					 SAB82532_ISR0_RFO | SAB82532_ISR0_RPF)) ||
 		    (status.sreg.isr1 & SAB82532_ISR1_BRK))
-			tty = receive_chars(up, &status, regs);
+			tty = receive_chars(up, &status);
 		if ((status.sreg.isr0 & SAB82532_ISR0_CDSC) ||
 		    (status.sreg.isr1 & SAB82532_ISR1_CSC))
 			check_status(up, &status);
@@ -350,7 +349,7 @@
 					 SAB82532_ISR0_RFO | SAB82532_ISR0_RPF)) ||
 		    (status.sreg.isr1 & SAB82532_ISR1_BRK))
 
-			tty = receive_chars(up, &status, regs);
+			tty = receive_chars(up, &status);
 		if ((status.sreg.isr0 & SAB82532_ISR0_CDSC) ||
 		    (status.sreg.isr1 & (SAB82532_ISR1_BRK | SAB82532_ISR1_CSC)))
 			check_status(up, &status);
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 9b3b9aa..c577fae 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -310,7 +310,7 @@
 }
 
 static struct tty_struct *
-receive_chars(struct uart_sunsu_port *up, unsigned char *status, struct pt_regs *regs)
+receive_chars(struct uart_sunsu_port *up, unsigned char *status)
 {
 	struct tty_struct *tty = up->port.info->tty;
 	unsigned char ch, flag;
@@ -367,7 +367,7 @@
 			else if (*status & UART_LSR_FE)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			goto ignore_char;
 		if ((*status & up->port.ignore_status_mask) == 0)
 			tty_insert_flip_char(tty, ch, flag);
@@ -445,7 +445,7 @@
 	wake_up_interruptible(&up->port.info->delta_msr_wait);
 }
 
-static irqreturn_t sunsu_serial_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunsu_serial_interrupt(int irq, void *dev_id)
 {
 	struct uart_sunsu_port *up = dev_id;
 	unsigned long flags;
@@ -459,7 +459,7 @@
 		status = serial_inp(up, UART_LSR);
 		tty = NULL;
 		if (status & UART_LSR_DR)
-			tty = receive_chars(up, &status, regs);
+			tty = receive_chars(up, &status);
 		check_modem_status(up);
 		if (status & UART_LSR_THRE)
 			transmit_chars(up);
@@ -497,7 +497,7 @@
 	sunsu_change_speed(&up->port, up->cflag, 0, quot);
 }
 
-static void receive_kbd_ms_chars(struct uart_sunsu_port *up, struct pt_regs *regs, int is_break)
+static void receive_kbd_ms_chars(struct uart_sunsu_port *up, int is_break)
 {
 	do {
 		unsigned char ch = serial_inp(up, UART_RX);
@@ -505,7 +505,7 @@
 		/* Stop-A is handled by drivers/char/keyboard.c now. */
 		if (up->su_type == SU_PORT_KBD) {
 #ifdef CONFIG_SERIO
-			serio_interrupt(&up->serio, ch, 0, regs);
+			serio_interrupt(&up->serio, ch, 0);
 #endif
 		} else if (up->su_type == SU_PORT_MS) {
 			int ret = suncore_mouse_baud_detection(ch, is_break);
@@ -519,7 +519,7 @@
 
 			case 0:
 #ifdef CONFIG_SERIO
-				serio_interrupt(&up->serio, ch, 0, regs);
+				serio_interrupt(&up->serio, ch, 0);
 #endif
 				break;
 			};
@@ -527,7 +527,7 @@
 	} while (serial_in(up, UART_LSR) & UART_LSR_DR);
 }
 
-static irqreturn_t sunsu_kbd_ms_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunsu_kbd_ms_interrupt(int irq, void *dev_id)
 {
 	struct uart_sunsu_port *up = dev_id;
 
@@ -535,8 +535,7 @@
 		unsigned char status = serial_inp(up, UART_LSR);
 
 		if ((status & UART_LSR_DR) || (status & UART_LSR_BI))
-			receive_kbd_ms_chars(up, regs,
-					     (status & UART_LSR_BI) != 0);
+			receive_kbd_ms_chars(up, (status & UART_LSR_BI) != 0);
 	}
 
 	return IRQ_HANDLED;
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 0da3ebf..b11f6de 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -277,14 +277,13 @@
 }
 
 static void sunzilog_kbdms_receive_chars(struct uart_sunzilog_port *up,
-					 unsigned char ch, int is_break,
-					 struct pt_regs *regs)
+					 unsigned char ch, int is_break)
 {
 	if (ZS_IS_KEYB(up)) {
 		/* Stop-A is handled by drivers/char/keyboard.c now. */
 #ifdef CONFIG_SERIO
 		if (up->serio_open)
-			serio_interrupt(&up->serio, ch, 0, regs);
+			serio_interrupt(&up->serio, ch, 0);
 #endif
 	} else if (ZS_IS_MOUSE(up)) {
 		int ret = suncore_mouse_baud_detection(ch, is_break);
@@ -299,7 +298,7 @@
 		case 0:
 #ifdef CONFIG_SERIO
 			if (up->serio_open)
-				serio_interrupt(&up->serio, ch, 0, regs);
+				serio_interrupt(&up->serio, ch, 0);
 #endif
 			break;
 		};
@@ -308,8 +307,7 @@
 
 static struct tty_struct *
 sunzilog_receive_chars(struct uart_sunzilog_port *up,
-		       struct zilog_channel __iomem *channel,
-		       struct pt_regs *regs)
+		       struct zilog_channel __iomem *channel)
 {
 	struct tty_struct *tty;
 	unsigned char ch, r1, flag;
@@ -346,12 +344,12 @@
 		ch &= up->parity_mask;
 
 		if (unlikely(ZS_IS_KEYB(up)) || unlikely(ZS_IS_MOUSE(up))) {
-			sunzilog_kbdms_receive_chars(up, ch, 0, regs);
+			sunzilog_kbdms_receive_chars(up, ch, 0);
 			continue;
 		}
 
 		if (tty == NULL) {
-			uart_handle_sysrq_char(&up->port, ch, regs);
+			uart_handle_sysrq_char(&up->port, ch);
 			continue;
 		}
 
@@ -379,7 +377,7 @@
 			else if (r1 & CRC_ERR)
 				flag = TTY_FRAME;
 		}
-		if (uart_handle_sysrq_char(&up->port, ch, regs))
+		if (uart_handle_sysrq_char(&up->port, ch))
 			continue;
 
 		if (up->port.ignore_status_mask == 0xff ||
@@ -394,8 +392,7 @@
 }
 
 static void sunzilog_status_handle(struct uart_sunzilog_port *up,
-				   struct zilog_channel __iomem *channel,
-				   struct pt_regs *regs)
+				   struct zilog_channel __iomem *channel)
 {
 	unsigned char status;
 
@@ -408,7 +405,7 @@
 
 	if (status & BRK_ABRT) {
 		if (ZS_IS_MOUSE(up))
-			sunzilog_kbdms_receive_chars(up, 0, 1, regs);
+			sunzilog_kbdms_receive_chars(up, 0, 1);
 		if (ZS_IS_CONS(up)) {
 			/* Wait for BREAK to deassert to avoid potentially
 			 * confusing the PROM.
@@ -517,7 +514,7 @@
 	ZS_WSYNC(channel);
 }
 
-static irqreturn_t sunzilog_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sunzilog_interrupt(int irq, void *dev_id)
 {
 	struct uart_sunzilog_port *up = dev_id;
 
@@ -538,9 +535,9 @@
 			ZS_WSYNC(channel);
 
 			if (r3 & CHARxIP)
-				tty = sunzilog_receive_chars(up, channel, regs);
+				tty = sunzilog_receive_chars(up, channel);
 			if (r3 & CHAEXT)
-				sunzilog_status_handle(up, channel, regs);
+				sunzilog_status_handle(up, channel);
 			if (r3 & CHATxIP)
 				sunzilog_transmit_chars(up, channel);
 		}
@@ -561,9 +558,9 @@
 			ZS_WSYNC(channel);
 
 			if (r3 & CHBRxIP)
-				tty = sunzilog_receive_chars(up, channel, regs);
+				tty = sunzilog_receive_chars(up, channel);
 			if (r3 & CHBEXT)
-				sunzilog_status_handle(up, channel, regs);
+				sunzilog_status_handle(up, channel);
 			if (r3 & CHBTxIP)
 				sunzilog_transmit_chars(up, channel);
 		}
diff --git a/drivers/serial/v850e_uart.c b/drivers/serial/v850e_uart.c
index f802867..28f3bbf 100644
--- a/drivers/serial/v850e_uart.c
+++ b/drivers/serial/v850e_uart.c
@@ -271,14 +271,14 @@
 		v850e_uart_stop_tx (port, stopped);
 }
 
-static irqreturn_t v850e_uart_tx_irq(int irq, void *data, struct pt_regs *regs)
+static irqreturn_t v850e_uart_tx_irq(int irq, void *data)
 {
 	struct uart_port *port = data;
 	v850e_uart_tx (port);
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t v850e_uart_rx_irq(int irq, void *data, struct pt_regs *regs)
+static irqreturn_t v850e_uart_rx_irq(int irq, void *data)
 {
 	struct uart_port *port = data;
 	unsigned ch_stat = TTY_NORMAL;
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index 6c8b0ea..fd51f81 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -359,8 +359,7 @@
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
-static inline void receive_chars(struct uart_port *port, uint8_t *status,
-                                 struct pt_regs *regs)
+static inline void receive_chars(struct uart_port *port, uint8_t *status)
 {
 	struct tty_struct *tty;
 	uint8_t lsr, ch;
@@ -405,7 +404,7 @@
 				flag = TTY_PARITY;
 		}
 
-		if (uart_handle_sysrq_char(port, ch, regs))
+		if (uart_handle_sysrq_char(port, ch))
 			goto ignore_char;
 
 		uart_insert_char(port, lsr, UART_LSR_OE, ch, flag);
@@ -472,7 +471,7 @@
 		siu_stop_tx(port);
 }
 
-static irqreturn_t siu_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t siu_interrupt(int irq, void *dev_id)
 {
 	struct uart_port *port;
 	uint8_t iir, lsr;
@@ -485,7 +484,7 @@
 
 	lsr = siu_read(port, UART_LSR);
 	if (lsr & UART_LSR_DR)
-		receive_chars(port, &lsr, regs);
+		receive_chars(port, &lsr);
 
 	check_modem_status(port);