diff --git a/util/superiotool/superiotool.c b/util/superiotool/superiotool.c
index 582ca9d2bf..97fa5fd842 100644
--- a/util/superiotool/superiotool.c
+++ b/util/superiotool/superiotool.c
@@ -25,131 +25,136 @@
 #include <stdlib.h>
 #include <sys/io.h>
 
-/* well, they really thought this through, eh? Family is 8 bits!!!! */
-char *familyid[] = {
-	[0xf1] = "pc8374 (winbond, was NS)"
+/* Well, they really thought this through, eh? Family is 8 bits! */
+static const char *familyid[] = {
+	[0xf1] = "PC8374 (Winbond/NatSemi)"
 };
 
-/* eventually, if you care, break this out into a file. For now, I don't know 
-  * if we need this. 
-  */
-
-unsigned char regval(unsigned short port, unsigned char reg) {
+unsigned char regval(unsigned short port, unsigned char reg)
+{
 	outb(reg, port);
 	return inb(port + 1);
 }
 
-void regwrite(unsigned short port, unsigned char reg, unsigned char val) {
+void regwrite(unsigned short port, unsigned char reg, unsigned char val)
+{
 	outb(reg, port);
 	outb(val, port + 1);
 }
 
-void
-dump_ns8374(unsigned short port) {
+void dump_ns8374(unsigned short port)
+{
 	printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
-		regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
-		regval(port, 0x24), regval(port, 0x26));
+	       regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
+	       regval(port, 0x24), regval(port, 0x26));
 	printf("SMBUS at %02x\n", regval(port, 0x2a));
-	/* check COM1. This is all we care about at present. */
-	printf("COM 1 is Globally %s\n", regval(port, 0x26) & 8 ? "disabled" : "enabled");
-	/* select com1 */
+
+	/* Check COM1. This is all we care about at present. */
+	printf("COM 1 is globally %s\n",
+	       regval(port, 0x26) & 8 ? "disabled" : "enabled");
+
+	/* Select COM1. */
 	regwrite(port, 0x07, 0x03);
-	printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
-		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
-	/* select gpio */
+	printf("COM 1 is locally %s\n",
+	       regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf
+	    ("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
+	     regval(port, 0x60), regval(port, 0x61), regval(port, 0x70),
+	     regval(port, 0x71), regval(port, 0x74), regval(port, 0x75),
+	     regval(port, 0xf0));
+
+	/* Select GPIO. */
 	regwrite(port, 0x07, 0x07);
 	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
-		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
-
+	printf
+	    ("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
+	     regval(port, 0x60), regval(port, 0x61), regval(port, 0x70),
+	     regval(port, 0x71), regval(port, 0x74), regval(port, 0x75),
+	     regval(port, 0xf0));
 }
 
-void
-dump_fintek(unsigned short port, unsigned int did) 
+void dump_fintek(unsigned short port, unsigned int did)
 {
-	switch(did) {
+	switch (did) {
 	case 0x0604:
-		printf ("Fintek F71805\n");
+		printf("Fintek F71805\n");
 		break;
 	case 0x4103:
-		printf ("Fintek F71872\n");
+		printf("Fintek F71872\n");
 		break;
 	default:
-		printf ("Unknown Fintek SuperI/O: did=0x%04x\n", did);
+		printf("Unknown Fintek Super I/O: did=0x%04x\n", did);
 		return;
 	}
 
-	printf("Flash write is %s.\n", regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
+	printf("Flash write is %s.\n",
+	       regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
 	printf("Flash control is 0x%04x.\n", regval(port, 0x28));
 	printf("27=%02x\n", regval(port, 0x27));
 	printf("29=%02x\n", regval(port, 0x29));
 	printf("2a=%02x\n", regval(port, 0x2a));
 	printf("2b=%02x\n", regval(port, 0x2b));
 
-	/* select UART 1 */
+	/* Select UART 1. */
 	regwrite(port, 0x07, 0x01);
-	printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
-		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+	printf("UART1 is %s\n",
+	       regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n", regval(port, 0x60),
+	       regval(port, 0x61), regval(port, 0x70) & 0x0f,
+	       regval(port, 0xf0) & 0x10 ? "RS485" : "RS232");
 
-	/* select UART 2 */
+	/* Select UART 2. */
 	regwrite(port, 0x07, 0x02);
-	printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
-		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+	printf("UART2 is %s\n",
+	       regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n", regval(port, 0x60),
+	       regval(port, 0x61), regval(port, 0x70) & 0x0f,
+	       regval(port, 0xf0) & 0x10 ? "RS485" : "RS232");
 
-	/* select Parport */
+	/* Select parallel port. */
 	regwrite(port, 0x07, 0x03);
-	printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("PARPORT base=%02x%02x, irq=%02x\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+	printf("PARPORT is %s\n",
+	       regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("PARPORT base=%02x%02x, irq=%02x\n", regval(port, 0x60),
+	       regval(port, 0x61), regval(port, 0x70) & 0x0f);
 
-	/* select hw monitor */
+	/* Select HW monitor. */
 	regwrite(port, 0x07, 0x04);
-	printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("HW monitor base=%02x%02x, irq=%02x\n", 
-		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+	printf("HW monitor is %s\n",
+	       regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("HW monitor base=%02x%02x, irq=%02x\n", regval(port, 0x60),
+	       regval(port, 0x61), regval(port, 0x70) & 0x0f);
 
-	/* select gpio */
+	/* Select GPIO. */
 	regwrite(port, 0x07, 0x05);
 	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
-	printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n", 
-		regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
-		regval(port, 0xe3), regval(port, 0xe4), regval(port, 0xe5));
-	printf("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n", 
-		regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8), regval(port, 0xe9),
-		regval(port, 0xf0), regval(port, 0xf1), regval(port, 0xf3), regval(port, 0xf4));
-	printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n", 
-		regval(port, 0xf5), regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
-
-
+	printf
+	    ("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n",
+	     regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1),
+	     regval(port, 0xe2), regval(port, 0xe3), regval(port, 0xe4),
+	     regval(port, 0xe5));
+	printf
+	    ("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n",
+	     regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8),
+	     regval(port, 0xe9), regval(port, 0xf0), regval(port, 0xf1),
+	     regval(port, 0xf3), regval(port, 0xf4));
+	printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n", regval(port, 0xf5),
+	       regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
 }
 
-/* End Of Table */
-#define EOT -1
-/* NO LDN needed */
-#define NOLDN -2
-/* Not Available */
-#define NANA -3
-/* Maximum Name Length */
-#define MAXNAMELEN 20
-/* Biggest LDN */
-#define MAXLDN 0xa
-/* biggestLDN + 0 + NOLDN + EOT */
-#define LDNSIZE MAXLDN + 3
-/* MAXimum NUMber of Indexes */
-#define MAXNUMIDX 70
-#define IDXSIZE MAXNUMIDX + 1
+#define EOT		-1		/* End Of Table */
+#define NOLDN		-2		/* NO LDN needed */
+#define NANA		-3		/* Not Available */
+#define MAXNAMELEN	20		/* Maximum Name Length */
+#define MAXLDN		0xa		/* Biggest LDN */
+#define LDNSIZE		(MAXLDN + 3)	/* Biggest LDN + 0 + NOLDN + EOT */
+#define MAXNUMIDX	70		/* Maximum number of indexes */
+#define IDXSIZE 	(MAXNUMIDX + 1)
 
 const static struct ite_registers {
-	/* yes, superio_id should be unsigned, but EOT has to be negative */
+	/* Yes, superio_id should be unsigned, but EOT has to be negative. */
 	signed short superio_id;
-	char name[MAXNAMELEN];
+	const char name[MAXNAMELEN];
 	struct ite_ldnidx {
 		signed short ldn;
 		signed short idx[IDXSIZE];
@@ -321,14 +326,12 @@ const static struct ite_registers {
 	{EOT}
 };
 
-void
-dump_ite(unsigned short port, unsigned short id) 
+void dump_ite(unsigned short port, unsigned short id)
 {
 	int i, j, k;
 	signed short *idx;
 	printf ("ITE ");
 
-
 	/* ID Mapping Table
 	   unknown -> IT8711 (no datasheet)
 	   unknown -> IT8722 (no datasheet)
@@ -340,8 +343,8 @@ dump_ite(unsigned short port, unsigned short id)
 	   0x8716 -> IT8716
 	   0x8718 -> IT8718
 	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
-	*/
-	switch(id) {
+	 */
+	switch (id) {
 	case 0x8702:
 	case 0x8705:
 	case 0x8708:
@@ -349,37 +352,37 @@ dump_ite(unsigned short port, unsigned short id)
 	case 0x8712:
 	case 0x8716:
 	case 0x8718:
-		for (i=0;; i++) {
+		for (i = 0;; i++) {
 			if (ite_reg_table[i].superio_id == EOT)
 				break;
 			if ((unsigned short)ite_reg_table[i].superio_id != id)
 				continue;
-			printf ("%s\n", ite_reg_table[i].name);
-			for (j=0;; j++) {
+			printf("%s\n", ite_reg_table[i].name);
+			for (j = 0;; j++) {
 				if (ite_reg_table[i].ldn[j].ldn == EOT)
 					break;
 				if (ite_reg_table[i].ldn[j].ldn != NOLDN) {
-					printf("switching to LDN 0x%01x\n",
+					printf("Switching to LDN 0x%01x\n",
 					       ite_reg_table[i].ldn[j].ldn);
 					regwrite(port, 0x07,
-					         ite_reg_table[i].ldn[j].ldn);
+						 ite_reg_table[i].ldn[j].ldn);
 				}
 				idx = ite_reg_table[i].ldn[j].idx;
 				printf("idx ");
-				for (k=0;; k++) {
+				for (k = 0;; k++) {
 					if (idx[k] == EOT)
 						break;
 					printf("%02x ", idx[k]);
 				}
 				printf("\nval ");
-				for (k=0;; k++) {
+				for (k = 0;; k++) {
 					if (idx[k] == EOT)
 						break;
 					printf("%02x ", regval(port, idx[k]));
 				}
 				printf("\ndef ");
 				idx = ite_reg_table[i].ldn[j].def;
-				for (k=0;; k++) {
+				for (k = 0;; k++) {
 					if (idx[k] == EOT)
 						break;
 					if (idx[k] == NANA)
@@ -389,27 +392,25 @@ dump_ite(unsigned short port, unsigned short id)
 				}
 				printf("\n");
 			}
-					
 		}
 		break;
 	default:
-		printf ("unknown ITE chip, id=%04x\n", id);
-		for (i=0x20; i<=0x24; i++)
+		printf("Unknown ITE chip, id=%04x\n", id);
+		for (i = 0x20; i <= 0x24; i++)
 			printf("index %02x=%02x\n", i, regval(port, i));
 		break;
 	}
 }
 
-void
-probe_idregs_simple(unsigned short port){
+void probe_idregs_simple(unsigned short port)
+{
 	unsigned char id;
 	outb(0x20, port);
-	if (inb(port) != 0x20)  {
-		if (inb(port) == 0xff )
-			printf ("No SuperI/O chip found at 0x%04x\n", port);
+	if (inb(port) != 0x20) {
+		if (inb(port) == 0xff)
+			printf("No SuperI/O chip found at 0x%04x\n", port);
 		else
-			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
-					port, inb(port), inb(port + 1));
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
 		return;
 	}
 	id = inb(port + 1);
@@ -418,90 +419,91 @@ probe_idregs_simple(unsigned short port){
 	if (id == 0xff)
 		return;
 
-	if (familyid[id]) 
+	if (familyid[id])
 		printf("%s\n", familyid[id]);
 	else
 		printf("<unknown>\n");
 
-	switch(id) {
-		case 0xf1:
-			dump_ns8374(port);
-			break;
-		default:
-			printf("no dump for 0x%02x\n", id);
-			break;
+	switch (id) {
+	case 0xf1:
+		dump_ns8374(port);
+		break;
+	default:
+		printf("no dump for 0x%02x\n", id);
+		break;
 	}
 }
 
-
-void
-probe_idregs_fintek(unsigned short port){
+void probe_idregs_fintek(unsigned short port)
+{
 	unsigned int vid, did, success = 0;
 
 	/* Enable configuration sequence (Fintek uses this for example)
-	   Older ITE chips have the same enable sequence */
+	 * Older ITE chips have the same enable sequence.
+	 */
 	outb(0x87, port);
 	outb(0x87, port);
 
 	outb(0x20, port);
-	if (inb(port) != 0x20)  {
-		if (inb(port) == 0xff )
-			printf ("No SuperIO chip found at 0x%04x\n", port);
+	if (inb(port) != 0x20) {
+		if (inb(port) == 0xff)
+			printf("No SuperIO chip found at 0x%04x\n", port);
 		else
-			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
-					port, inb(port), inb(port + 1));
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
 		return;
 	}
 	did = inb(port + 1);
-
-	did |= (regval(port, 0x21)<<8);
+	did |= (regval(port, 0x21) << 8);
 
 	vid = regval(port, 0x23);
-	vid |= (regval(port, 0x24)<<8);
+	vid |= (regval(port, 0x24) << 8);
 
-	printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);
+	printf("Super I/O found at 0x%02x: vid=0x%04x/did=0x%04x\n",
+	       port, vid, did);
 
 	if (vid == 0xff || vid == 0xffff)
 		return;
 
 	/* printf("%s\n", familyid[id]); */
-	switch(did) {
-		case 0x0887: /* pseudoreversed for ITE8708 */
-		case 0x1087: /* pseudoreversed for ITE8710 */
-			success = 1;
-			dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
-			/* disable configuration */
-			regwrite(port, 0x02, 0x02);
-			break;
-		default:
-			break;
+	switch (did) {
+	case 0x0887:		/* Pseudoreversed for ITE8708 */
+	case 0x1087:		/* Pseudoreversed for ITE8710 */
+		success = 1;
+		dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
+		regwrite(port, 0x02, 0x02);	/* Exit MB PnP mode. */
+		break;
+	default:
+		break;
 	}
-	switch(vid) {
-		case 0x3419:
-			success = 1;
-			dump_fintek(port, did);
-			break;
-		default:
-			break;
-	}
-	if (!success)
-		printf("no dump for vid 0x%04x, did 0x%04x\n", vid, did);
 
-	/* disable configuration (for Fintek, doesn't hurt ITE) */
+	switch (vid) {
+	case 0x3419:
+		success = 1;
+		dump_fintek(port, did);
+		break;
+	default:
+		break;
+	}
+
+	if (!success)
+		printf("No dump for vid 0x%04x, did 0x%04x\n", vid, did);
+
+	/* Exit MB PnP mode (for Fintek, doesn't hurt ITE). */
 	outb(0xaa, port);
 }
 
-void
-probe_idregs_ite(unsigned short port){
+void probe_idregs_ite(unsigned short port)
+{
 	unsigned int id, chipver;
 
 	/* Enable configuration sequence (ITE uses this for newer IT87[012]x)
-	   IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
-	   IT8708 uses 0x87, 0x87 -> fintek detection should handle it
-	   IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
-	   IT86xx series uses different ports
-	   IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
-	   IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes */
+	 * IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
+	 * IT8708 uses 0x87, 0x87 -> fintek detection should handle it
+	 * IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
+	 * IT86xx series uses different ports
+	 * IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
+	 * IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes
+	 */
 	outb(0x87, port);
 	outb(0x01, port);
 	outb(0x55, port);
@@ -510,77 +512,72 @@ probe_idregs_ite(unsigned short port){
 	else
 		outb(0xAA, port);
 
-	/* Read Chip ID Byte 1 */
+	/* Read Chip ID Byte 1. */
 	id = regval(port, 0x20);
-	if (id != 0x87)  {
-		if (inb(port) == 0xff )
-			printf ("No SuperIO chip found at 0x%04x\n", port);
+	if (id != 0x87) {
+		if (inb(port) == 0xff)
+			printf("No Super-I/O chip found at 0x%04x\n", port);
 		else
-			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
-					port, inb(port), inb(port + 1));
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
 		return;
 	}
 
 	id <<= 8;
 
-	/* Read Chip ID Byte 2 */
+	/* Read Chip ID Byte 2. */
 	id |= regval(port, 0x21);
 
-	/* Read Chip Version, only bit 3..0 for all IT87xx */
+	/* Read chip version, only bits 3..0 for all IT87xx. */
 	chipver = regval(port, 0x22) & 0x0f;
 
 	/* ID Mapping Table
-	   unknown -> IT8711 (no datasheet)
-	   unknown -> IT8722 (no datasheet)
-	   0x8702 -> IT8702
-	   0x8705 -> IT8700 or IT8705
-	   0x8708 -> IT8708
-	   0x8710 -> IT8710
-	   0x8712 -> IT8712
-	   0x8716 -> IT8716
-	   0x8718 -> IT8718
-	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
-	*/
-	printf("SuperI/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
+	 * unknown -> IT8711 (no datasheet)
+	 * unknown -> IT8722 (no datasheet)
+	 * 0x8702 -> IT8702
+	 * 0x8705 -> IT8700 or IT8705
+	 * 0x8708 -> IT8708
+	 * 0x8710 -> IT8710
+	 * 0x8712 -> IT8712
+	 * 0x8716 -> IT8716
+	 * 0x8718 -> IT8718
+	 * 0x8726 -> IT8726 (datasheet wrongly says 0x8716)
+	 */
+	printf("Super I/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
 	       port, id, chipver);
 
-	switch(id) {
-		case 0x8702:
-		case 0x8705:
-		case 0x8708:
-		case 0x8712:
-		case 0x8716:
-		case 0x8718:
-		case 0x8726:
-			dump_ite(port, id);
-			break;
-		default:
-			printf("no dump for id 0x%04x\n", id);
-			break;
+	switch (id) {
+	case 0x8702:
+	case 0x8705:
+	case 0x8708:
+	case 0x8712:
+	case 0x8716:
+	case 0x8718:
+	case 0x8726:
+		dump_ite(port, id);
+		break;
+	default:
+		printf("No dump for id 0x%04x\n", id);
+		break;
 	}
-	/* disable configuration */
-	regwrite(port, 0x02, 0x02);
+	regwrite(port, 0x02, 0x02);	/* Exit MB PnP mode. */
 }
 
-void
-probe_superio(unsigned short port) {
+void probe_superio(unsigned short port)
+{
 	probe_idregs_simple(port);
 	probe_idregs_fintek(port);
 	probe_idregs_ite(port);
 }
 
-int
-main(int argc, char *argv[])
+int main(int argc, char *argv[])
 {
 	if (iopl(3) < 0) {
 		perror("iopl");
 		exit(1);
 	}
 
-	/* try the 2e */
-	probe_superio(0x2e);
-	/* now try the 4e */
-	probe_superio(0x4e);
+	probe_superio(0x2e);	/* Try 0x2e. */
+	probe_superio(0x4e);	/* Try 0x4e. */
 
 	return 0;
 }