Resolve compiler warnings

server/modules/include/shardrouter.h

@@ -245,4 +245,6 @@ typedef struct router_instance {
 #define BACKEND_TYPE(b) (SERVER_IS_MASTER((b)->backend_server) ? BE_MASTER :    \
         (SERVER_IS_SLAVE((b)->backend_server) ? BE_SLAVE :  BE_UNDEFINED));
 
+bool subsvc_is_valid(SUBSERVICE*);
+
 #endif /*< _SHARDROUTER_H */

server/modules/routing/readwritesplit/readwritesplit.c

@@ -3554,7 +3554,6 @@ static rses_property_t* rses_property_init(
 	prop->rses_prop_chk_tail = CHK_NUM_ROUTER_PROPERTY;
 #endif
 	
-return_prop:
 	CHK_RSES_PROP(prop);
 	return prop;
 }

server/modules/routing/schemarouter/shardrouter.c

@@ -319,7 +319,7 @@ parse_mapping_response(ROUTER_CLIENT_SES* rses, char* target, GWBUF* buf)
    if(PTR_IS_RESULTSET(((unsigned char*)buf->start)) &&
       modutil_count_signal_packets(buf,0,0,&more) == 2)
    {
-       ptr = (char*)buf->start;
+       ptr = (unsigned char*)buf->start;
 
        if(ptr[5] != 1)
        {