Fix code warning.

Change-Id: Ib11fb49f528d3688351ae349d5b4e307c28b3967
diff --git a/mbtk/libmbtk_lib/mqtt/MQTTPacket/MQTTFormat.c b/mbtk/libmbtk_lib/mqtt/MQTTPacket/MQTTFormat.c
index 3015a0e..9878492 100755
--- a/mbtk/libmbtk_lib/mqtt/MQTTPacket/MQTTFormat.c
+++ b/mbtk/libmbtk_lib/mqtt/MQTTPacket/MQTTFormat.c
@@ -119,7 +119,7 @@
 	int index = 0;

 	int rem_length = 0;

 	MQTTHeader header = {0};

-	int strindex = 0;

+//	int strindex = 0;

 

 	header.byte = buf[index++];

 	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);

@@ -130,7 +130,7 @@
 	{

 		unsigned char sessionPresent, connack_rc;

 		if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, buf, buflen) == 1)

-			strindex = MQTTStringFormat_connack(strbuf, strbuflen, connack_rc, sessionPresent);

+			MQTTStringFormat_connack(strbuf, strbuflen, connack_rc, sessionPresent);

 	}

 	break;

 	case PUBLISH:

@@ -141,7 +141,7 @@
 		MQTTString topicName = MQTTString_initializer;

 		if (MQTTDeserialize_publish(&dup, &qos, &retained, &packetid, &topicName,

 				&payload, &payloadlen, buf, buflen) == 1)

-			strindex = MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,

+			MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,

 					topicName, payload, payloadlen);

 	}

 	break;

@@ -153,7 +153,7 @@
 		unsigned char packettype, dup;

 		unsigned short packetid;

 		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)

-			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);

+			MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);

 	}

 	break;

 	case SUBACK:

@@ -162,20 +162,20 @@
 		int maxcount = 1, count = 0;

 		int grantedQoSs[1];

 		if (MQTTDeserialize_suback(&packetid, maxcount, &count, grantedQoSs, buf, buflen) == 1)

-			strindex = MQTTStringFormat_suback(strbuf, strbuflen, packetid, count, grantedQoSs);

+			MQTTStringFormat_suback(strbuf, strbuflen, packetid, count, grantedQoSs);

 	}

 	break;

 	case UNSUBACK:

 	{

 		unsigned short packetid;

 		if (MQTTDeserialize_unsuback(&packetid, buf, buflen) == 1)

-			strindex = MQTTStringFormat_ack(strbuf, strbuflen, UNSUBACK, 0, packetid);

+			MQTTStringFormat_ack(strbuf, strbuflen, UNSUBACK, 0, packetid);

 	}

 	break;

 	case PINGREQ:

 	case PINGRESP:

 	case DISCONNECT:

-		strindex = snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);

+		snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);

 		break;

 	}

 	return strbuf;

@@ -187,7 +187,7 @@
 	int index = 0;

 	int rem_length = 0;

 	MQTTHeader header = {0};

-	int strindex = 0;

+//	int strindex = 0;

 

 	header.byte = buf[index++];

 	index += MQTTPacket_decodeBuf(&buf[index], &rem_length);

@@ -199,7 +199,7 @@
 		MQTTPacket_connectData data;

 		int rc;

 		if ((rc = MQTTDeserialize_connect(&data, buf, buflen)) == 1)

-			strindex = MQTTStringFormat_connect(strbuf, strbuflen, &data);

+			MQTTStringFormat_connect(strbuf, strbuflen, &data);

 	}

 	break;

 	case PUBLISH:

@@ -210,7 +210,7 @@
 		MQTTString topicName = MQTTString_initializer;

 		if (MQTTDeserialize_publish(&dup, &qos, &retained, &packetid, &topicName,

 				&payload, &payloadlen, buf, buflen) == 1)

-			strindex = MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,

+			MQTTStringFormat_publish(strbuf, strbuflen, dup, qos, retained, packetid,

 					topicName, payload, payloadlen);

 	}

 	break;

@@ -222,7 +222,7 @@
 		unsigned char packettype, dup;

 		unsigned short packetid;

 		if (MQTTDeserialize_ack(&packettype, &dup, &packetid, buf, buflen) == 1)

-			strindex = MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);

+			MQTTStringFormat_ack(strbuf, strbuflen, packettype, dup, packetid);

 	}

 	break;

 	case SUBSCRIBE:

@@ -234,7 +234,7 @@
 		int requestedQoSs[1];

 		if (MQTTDeserialize_subscribe(&dup, &packetid, maxcount, &count,

 				topicFilters, requestedQoSs, buf, buflen) == 1)

-			strindex = MQTTStringFormat_subscribe(strbuf, strbuflen, dup, packetid, count, topicFilters, requestedQoSs);;

+			MQTTStringFormat_subscribe(strbuf, strbuflen, dup, packetid, count, topicFilters, requestedQoSs);;

 	}

 	break;

 	case UNSUBSCRIBE:

@@ -244,13 +244,13 @@
 		int maxcount = 1, count = 0;

 		MQTTString topicFilters[1];

 		if (MQTTDeserialize_unsubscribe(&dup, &packetid, maxcount, &count, topicFilters, buf, buflen) == 1)

-			strindex =  MQTTStringFormat_unsubscribe(strbuf, strbuflen, dup, packetid, count, topicFilters);

+			MQTTStringFormat_unsubscribe(strbuf, strbuflen, dup, packetid, count, topicFilters);

 	}

 	break;

 	case PINGREQ:

 	case PINGRESP:

 	case DISCONNECT:

-		strindex = snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);

+		snprintf(strbuf, strbuflen, "%s", MQTTPacket_names[header.bits.type]);

 		break;

 	}

 	strbuf[strbuflen] = '\0';