whisper: remove some warnings

whisper/whisperv6/devp2p_glue.go

@@ -18,10 +18,11 @@ package whisperv6
 
 import (
 	"fmt"
+	"time"
+
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
 	set "gopkg.in/fatih/set.v0"
-	"time"
 )
 
 // DevP2PPeer is the DevP2P implementation of the Peer interface

whisper/whisperv6/libp2p_glue.go

@@ -21,11 +21,12 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"github.com/ethereum/go-ethereum/log"
 	"io"
 	"sync"
 	"time"
 
+	"github.com/ethereum/go-ethereum/log"
+
 	"github.com/ethereum/go-ethereum/p2p"
 	"github.com/ethereum/go-ethereum/rlp"
 	crypto "github.com/libp2p/go-libp2p-crypto"
@@ -197,11 +198,12 @@ updateLoop:
 
 // LibP2PWhisperServer implements WhisperServer for libp2p.
 type LibP2PWhisperServer struct {
-	Host host.Host
+	Host host.Host // Libp2p host structure
 
 	PeerMutex sync.RWMutex  // Guard the list of active peers
+	Peers     []*LibP2PPeer // List of active peers
 
-	whisper *Whisper
+	whisper *Whisper // Pointer to the whisper object
 }
 
 func (server *LibP2PWhisperServer) connectToPeer(p *LibP2PPeer) error {

whisper/whisperv6/peer.go

@@ -221,6 +221,7 @@ func (peer *PeerBase) stream() p2p.MsgReadWriter {
 	return peer.ws
 }
 
+// MakeFullNodeBloom returns a bloom filter that accepts all topics
 func MakeFullNodeBloom() []byte {
 	bloom := make([]byte, BloomFilterSize)
 	for i := 0; i < BloomFilterSize; i++ {

whisper/whisperv6/whisper.go

@@ -99,10 +99,6 @@ type Whisper struct {
 	mailServer MailServer // MailServer interface
 }
 
-type DevP2PBridge struct {
-	*Whisper
-}
-
 // New creates a Whisper client ready to communicate through the Ethereum P2P network.
 func New(cfg *Config) *Whisper {
 	if cfg == nil {
@@ -1045,6 +1041,7 @@ func isFullNode(bloom []byte) bool {
 	return true
 }
 
+// BloomFilterMatch checks if a bloom filter is a superset of a series of bytes
 func BloomFilterMatch(filter, sample []byte) bool {
 	if filter == nil {
 		return true