[PATCH] m68k pt_regs fixes

m68k_handle_int() split in two functions: __m68k_handle_int() takes
pt_regs * and does set_irq_regs(); m68k_handle_int() doesn't get pt_regs
*.

Places where we used to call m68k_handle_int() recursively with the same
pt_regs have simply lost the second argument, the rest is switched to
__m68k_handle_int().

The rest of patch is just dropping pt_regs * where needed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 48 insertions, 46 deletions

diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c
index 6eaa881793d..a1c7ec70674 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -25,7 +25,7 @@
 int baboon_present,baboon_active;
 volatile struct baboon *baboon;
 
-irqreturn_t baboon_irq(int, void *, struct pt_regs *);
+irqreturn_t baboon_irq(int, void *);
 
 #if 0
 extern int macide_ack_intr(struct ata_channel *);
@@ -64,7 +64,7 @@ void __init baboon_register_interrupts(void)
  * Baboon interrupt handler. This works a lot like a VIA.
  */
 
-irqreturn_t baboon_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t baboon_irq(int irq, void *dev_id)
 {
 	int irq_bit,i;
 	unsigned char events;
@@ -81,7 +81,7 @@ irqreturn_t baboon_irq(int irq, void *dev_id, struct pt_regs *regs)
 	for (i = 0, irq_bit = 1 ; i < 3 ; i++, irq_bit <<= 1) {
 	        if (events & irq_bit/* & baboon_active*/) {
 			baboon_active &= ~irq_bit;
-			m68k_handle_int(IRQ_BABOON_0 + i, regs);
+			m68k_handle_int(IRQ_BABOON_0 + i);
 			baboon_active |= irq_bit;
 			baboon->mb_ifr &= ~irq_bit;
 		}
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 85dda1095b1..029bae65c5d 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -72,7 +72,7 @@ extern int show_mac_interrupts(struct seq_file *, void *);
 extern void iop_preinit(void);
 extern void iop_init(void);
 extern void via_init(void);
-extern void via_init_clock(irqreturn_t (*func)(int, void *, struct pt_regs *));
+extern void via_init_clock(irqreturn_t (*func)(int, void *));
 extern void via_flush_cache(void);
 extern void oss_init(void);
 extern void psc_init(void);
@@ -88,7 +88,7 @@ extern void mac_debugging_long(int, long);
 
 static void mac_get_model(char *str);
 
-static void mac_sched_init(irqreturn_t (*vector)(int, void *, struct pt_regs *))
+static void mac_sched_init(irqreturn_t (*vector)(int, void *))
 {
 	via_init_clock(vector);
 }
diff --git a/arch/m68k/mac/iop.c b/arch/m68k/mac/iop.c
index bc657b1057a..0cea21f5819 100644
--- a/arch/m68k/mac/iop.c
+++ b/arch/m68k/mac/iop.c
@@ -132,7 +132,7 @@ static int iop_get_proc_info(char *, char **, off_t, int);
 
 struct listener {
 	const char *devname;
-	void (*handler)(struct iop_msg *, struct pt_regs *);
+	void (*handler)(struct iop_msg *);
 };
 
 /*
@@ -152,7 +152,7 @@ static struct iop_msg iop_msg_pool[NUM_IOP_MSGS];
 static struct iop_msg *iop_send_queue[NUM_IOPS][NUM_IOP_CHAN];
 static struct listener iop_listeners[NUM_IOPS][NUM_IOP_CHAN];
 
-irqreturn_t iop_ism_irq(int, void *, struct pt_regs *);
+irqreturn_t iop_ism_irq(int, void *);
 
 extern void oss_irq_enable(int);
 
@@ -342,7 +342,7 @@ void __init iop_register_interrupts(void)
  */
 
 int iop_listen(uint iop_num, uint chan,
-		void (*handler)(struct iop_msg *, struct pt_regs *),
+		void (*handler)(struct iop_msg *),
 		const char *devname)
 {
 	if ((iop_num >= NUM_IOPS) || !iop_base[iop_num]) return -EINVAL;
@@ -407,7 +407,7 @@ static void iop_do_send(struct iop_msg *msg)
  * has gone into the IOP_MSG_COMPLETE state.
  */
 
-static void iop_handle_send(uint iop_num, uint chan, struct pt_regs *regs)
+static void iop_handle_send(uint iop_num, uint chan)
 {
 	volatile struct mac_iop *iop = iop_base[iop_num];
 	struct iop_msg *msg,*msg2;
@@ -426,7 +426,7 @@ static void iop_handle_send(uint iop_num, uint chan, struct pt_regs *regs)
 	for (i = 0 ; i < IOP_MSG_LEN ; i++, offset++) {
 		msg->reply[i] = iop_readb(iop, offset);
 	}
-	if (msg->handler) (*msg->handler)(msg, regs);
+	if (msg->handler) (*msg->handler)(msg);
 	msg2 = msg;
 	msg = msg->next;
 	iop_free_msg(msg2);
@@ -440,7 +440,7 @@ static void iop_handle_send(uint iop_num, uint chan, struct pt_regs *regs)
  * gone into the IOP_MSG_NEW state.
  */
 
-static void iop_handle_recv(uint iop_num, uint chan, struct pt_regs *regs)
+static void iop_handle_recv(uint iop_num, uint chan)
 {
 	volatile struct mac_iop *iop = iop_base[iop_num];
 	int i,offset;
@@ -468,7 +468,7 @@ static void iop_handle_recv(uint iop_num, uint chan, struct pt_regs *regs)
 	/* the message ourselves to avoid possible stalls.         */
 
 	if (msg->handler) {
-		(*msg->handler)(msg, regs);
+		(*msg->handler)(msg);
 	} else {
 #ifdef DEBUG_IOP
 		printk("iop_handle_recv: unclaimed message on iop %d channel %d\n", iop_num, chan);
@@ -492,7 +492,7 @@ static void iop_handle_recv(uint iop_num, uint chan, struct pt_regs *regs)
 
 int iop_send_message(uint iop_num, uint chan, void *privdata,
 		      uint msg_len, __u8 *msg_data,
-		      void (*handler)(struct iop_msg *, struct pt_regs *))
+		      void (*handler)(struct iop_msg *))
 {
 	struct iop_msg *msg, *q;
 
@@ -584,7 +584,7 @@ __u8 *iop_compare_code(uint iop_num, __u8 *code_start,
  * Handle an ISM IOP interrupt
  */
 
-irqreturn_t iop_ism_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t iop_ism_irq(int irq, void *dev_id)
 {
 	uint iop_num = (uint) dev_id;
 	volatile struct mac_iop *iop = iop_base[iop_num];
@@ -608,7 +608,7 @@ irqreturn_t iop_ism_irq(int irq, void *dev_id, struct pt_regs *regs)
 			printk(" %02X", state);
 #endif
 			if (state == IOP_MSG_COMPLETE) {
-				iop_handle_send(iop_num, i, regs);
+				iop_handle_send(iop_num, i);
 			}
 		}
 #ifdef DEBUG_IOP
@@ -628,7 +628,7 @@ irqreturn_t iop_ism_irq(int irq, void *dev_id, struct pt_regs *regs)
 			printk(" %02X", state);
 #endif
 			if (state == IOP_MSG_NEW) {
-				iop_handle_recv(iop_num, i, regs);
+				iop_handle_recv(iop_num, i);
 			}
 		}
 #ifdef DEBUG_IOP
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 694b14bb0de..f6fcd754d8f 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -133,6 +133,7 @@
 #include <asm/hwtest.h>
 #include <asm/errno.h>
 #include <asm/macints.h>
+#include <asm/irq_regs.h>
 
 #define DEBUG_SPURIOUS
 #define SHUTUP_SONIC
@@ -208,8 +209,8 @@ static void scc_irq_disable(unsigned int);
  * console_loglevel determines NMI handler function
  */
 
-irqreturn_t mac_nmi_handler(int, void *, struct pt_regs *);
-irqreturn_t mac_debug_handler(int, void *, struct pt_regs *);
+irqreturn_t mac_nmi_handler(int, void *);
+irqreturn_t mac_debug_handler(int, void *);
 
 /* #define DEBUG_MACINTS */
 
@@ -393,7 +394,7 @@ int mac_irq_pending(unsigned int irq)
 
 static int num_debug[8];
 
-irqreturn_t mac_debug_handler(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t mac_debug_handler(int irq, void *dev_id)
 {
 	if (num_debug[irq] < 10) {
 		printk("DEBUG: Unexpected IRQ %d\n", irq);
@@ -405,7 +406,7 @@ irqreturn_t mac_debug_handler(int irq, void *dev_id, struct pt_regs *regs)
 static int in_nmi;
 static volatile int nmi_hold;
 
-irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp)
+irqreturn_t mac_nmi_handler(int irq, void *dev_id)
 {
 	int i;
 	/*
@@ -432,6 +433,7 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp)
 
 	if (console_loglevel >= 8) {
 #if 0
+		struct pt_regs *fp = get_irq_regs();
 		show_state();
 		printk("PC: %08lx\nSR: %04x  SP: %p\n", fp->pc, fp->sr, fp);
 		printk("d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
@@ -479,7 +481,7 @@ static void scc_irq_disable(unsigned int irq)
  * here is cleaner than hacking it into drivers/char/macserial.c.
  */
 
-void mac_scc_dispatch(int irq, void *dev_id, struct pt_regs *regs)
+void mac_scc_dispatch(int irq, void *dev_id)
 {
 	volatile unsigned char *scc = (unsigned char *) mac_bi_data.sccbase + 2;
 	unsigned char reg;
@@ -504,7 +506,7 @@ void mac_scc_dispatch(int irq, void *dev_id, struct pt_regs *regs)
 	/* pretty much kill the system.                 */
 
 	if (reg & 0x38)
-		m68k_handle_int(IRQ_SCCA, regs);
+		m68k_handle_int(IRQ_SCCA);
 	if (reg & 0x07)
-		m68k_handle_int(IRQ_SCCB, regs);
+		m68k_handle_int(IRQ_SCCB);
 }
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 63e04365191..63690819565 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -30,11 +30,11 @@
 int oss_present;
 volatile struct mac_oss *oss;
 
-irqreturn_t oss_irq(int, void *, struct pt_regs *);
-irqreturn_t oss_nubus_irq(int, void *, struct pt_regs *);
+irqreturn_t oss_irq(int, void *);
+irqreturn_t oss_nubus_irq(int, void *);
 
-extern irqreturn_t via1_irq(int, void *, struct pt_regs *);
-extern irqreturn_t mac_scc_dispatch(int, void *, struct pt_regs *);
+extern irqreturn_t via1_irq(int, void *);
+extern irqreturn_t mac_scc_dispatch(int, void *);
 
 /*
  * Initialize the OSS
@@ -92,7 +92,7 @@ void __init oss_nubus_init(void)
  * and SCSI; everything else is routed to its own autovector IRQ.
  */
 
-irqreturn_t oss_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t oss_irq(int irq, void *dev_id)
 {
 	int events;
 
@@ -113,7 +113,7 @@ irqreturn_t oss_irq(int irq, void *dev_id, struct pt_regs *regs)
 		oss->irq_pending &= ~OSS_IP_SOUND;
 	} else if (events & OSS_IP_SCSI) {
 		oss->irq_level[OSS_SCSI] = OSS_IRQLEV_DISABLED;
-		m68k_handle_int(IRQ_MAC_SCSI, regs);
+		m68k_handle_int(IRQ_MAC_SCSI);
 		oss->irq_pending &= ~OSS_IP_SCSI;
 		oss->irq_level[OSS_SCSI] = OSS_IRQLEV_SCSI;
 	} else {
@@ -128,7 +128,7 @@ irqreturn_t oss_irq(int irq, void *dev_id, struct pt_regs *regs)
  * Unlike the VIA/RBV this is on its own autovector interrupt level.
  */
 
-irqreturn_t oss_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t oss_nubus_irq(int irq, void *dev_id)
 {
 	int events, irq_bit, i;
 
@@ -146,7 +146,7 @@ irqreturn_t oss_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
 	for (i = 0, irq_bit = 1 ; i < 6 ; i++, irq_bit <<= 1) {
 		if (events & irq_bit) {
 			oss->irq_level[i] = OSS_IRQLEV_DISABLED;
-			m68k_handle_int(NUBUS_SOURCE_BASE + i, regs);
+			m68k_handle_int(NUBUS_SOURCE_BASE + i);
 			oss->irq_pending &= ~irq_bit;
 			oss->irq_level[i] = OSS_IRQLEV_NUBUS;
 		}
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index e2621809175..15378a5878c 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -30,7 +30,7 @@
 int psc_present;
 volatile __u8 *psc;
 
-irqreturn_t psc_irq(int, void *, struct pt_regs *);
+irqreturn_t psc_irq(int, void *);
 
 /*
  * Debugging dump, used in various places to see what's going on.
@@ -127,7 +127,7 @@ void __init psc_register_interrupts(void)
  * PSC interrupt handler. It's a lot like the VIA interrupt handler.
  */
 
-irqreturn_t psc_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t psc_irq(int irq, void *dev_id)
 {
 	int pIFR	= pIFRbase + ((int) dev_id);
 	int pIER	= pIERbase + ((int) dev_id);
@@ -149,7 +149,7 @@ irqreturn_t psc_irq(int irq, void *dev_id, struct pt_regs *regs)
 	for (i = 0, irq_bit = 1 ; i < 4 ; i++, irq_bit <<= 1) {
 	        if (events & irq_bit) {
 			psc_write_byte(pIER, irq_bit);
-			m68k_handle_int(base_irq + i, regs);
+			m68k_handle_int(base_irq + i);
 			psc_write_byte(pIFR, irq_bit);
 			psc_write_byte(pIER, irq_bit | 0x80);
 		}
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index c4aa345d544..9b6c80c4bbe 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -63,14 +63,14 @@ static int gIER,gIFR,gBufA,gBufB;
 static int  nubus_active;
 
 void via_debug_dump(void);
-irqreturn_t via1_irq(int, void *, struct pt_regs *);
-irqreturn_t via2_irq(int, void *, struct pt_regs *);
-irqreturn_t via_nubus_irq(int, void *, struct pt_regs *);
+irqreturn_t via1_irq(int, void *);
+irqreturn_t via2_irq(int, void *);
+irqreturn_t via_nubus_irq(int, void *);
 void via_irq_enable(int irq);
 void via_irq_disable(int irq);
 void via_irq_clear(int irq);
 
-extern irqreturn_t mac_scc_dispatch(int, void *, struct pt_regs *);
+extern irqreturn_t mac_scc_dispatch(int, void *);
 extern int oss_present;
 
 /*
@@ -235,7 +235,7 @@ void __init via_init(void)
  * Start the 100 Hz clock
  */
 
-void __init via_init_clock(irqreturn_t (*func)(int, void *, struct pt_regs *))
+void __init via_init_clock(irqreturn_t (*func)(int, void *))
 {
 	via1[vACR] |= 0x40;
 	via1[vT1LL] = MAC_CLOCK_LOW;
@@ -412,7 +412,7 @@ void __init via_nubus_init(void)
  * the machspec interrupt number after clearing the interrupt.
  */
 
-irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t via1_irq(int irq, void *dev_id)
 {
 	int irq_bit, i;
 	unsigned char events, mask;
@@ -424,7 +424,7 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs)
 	for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1)
 		if (events & irq_bit) {
 			via1[vIER] = irq_bit;
-			m68k_handle_int(VIA1_SOURCE_BASE + i, regs);
+			m68k_handle_int(VIA1_SOURCE_BASE + i);
 			via1[vIFR] = irq_bit;
 			via1[vIER] = irq_bit | 0x80;
 		}
@@ -439,14 +439,14 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs)
 		/* No, it won't be set. that's why we're doing this. */
 		via_irq_disable(IRQ_MAC_NUBUS);
 		via_irq_clear(IRQ_MAC_NUBUS);
-		m68k_handle_int(IRQ_MAC_NUBUS, regs);
+		m68k_handle_int(IRQ_MAC_NUBUS);
 		via_irq_enable(IRQ_MAC_NUBUS);
 	}
 #endif
 	return IRQ_HANDLED;
 }
 
-irqreturn_t via2_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t via2_irq(int irq, void *dev_id)
 {
 	int irq_bit, i;
 	unsigned char events, mask;
@@ -459,7 +459,7 @@ irqreturn_t via2_irq(int irq, void *dev_id, struct pt_regs *regs)
 		if (events & irq_bit) {
 			via2[gIER] = irq_bit;
 			via2[gIFR] = irq_bit | rbv_clear;
-			m68k_handle_int(VIA2_SOURCE_BASE + i, regs);
+			m68k_handle_int(VIA2_SOURCE_BASE + i);
 			via2[gIER] = irq_bit | 0x80;
 		}
 	return IRQ_HANDLED;
@@ -470,7 +470,7 @@ irqreturn_t via2_irq(int irq, void *dev_id, struct pt_regs *regs)
  * VIA2 dispatcher as a fast interrupt handler.
  */
 
-irqreturn_t via_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t via_nubus_irq(int irq, void *dev_id)
 {
 	int irq_bit, i;
 	unsigned char events;
@@ -481,7 +481,7 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
 	for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) {
 		if (events & irq_bit) {
 			via_irq_disable(NUBUS_SOURCE_BASE + i);
-			m68k_handle_int(NUBUS_SOURCE_BASE + i, regs);
+			m68k_handle_int(NUBUS_SOURCE_BASE + i);
 			via_irq_enable(NUBUS_SOURCE_BASE + i);
 		}
 	}