diff --git a/net/net_linux.go b/net/net_linux.go
index a2006ec13292c9307f57f0af8867ca54c196ca30..5d538f63520c0518d5104c9bf08c0b9c04b74295 100644
--- a/net/net_linux.go
+++ b/net/net_linux.go
@@ -217,32 +217,32 @@ var TCPStatuses = map[string]string{
 type netConnectionKindType struct {
 	family   uint32
 	sockType uint32
-	f        string // file name
+	filename string
 }
 
 var kindTCP4 = netConnectionKindType{
 	family:   syscall.AF_INET,
 	sockType: syscall.SOCK_STREAM,
-	f:        "tcp",
+	filename: "tcp",
 }
 var kindTCP6 = netConnectionKindType{
 	family:   syscall.AF_INET6,
 	sockType: syscall.SOCK_STREAM,
-	f:        "tcp6",
+	filename: "tcp6",
 }
 var kindUDP4 = netConnectionKindType{
 	family:   syscall.AF_INET,
 	sockType: syscall.SOCK_DGRAM,
-	f:        "udp",
+	filename: "udp",
 }
 var kindUDP6 = netConnectionKindType{
 	family:   syscall.AF_INET6,
 	sockType: syscall.SOCK_DGRAM,
-	f:        "udp6",
+	filename: "udp6",
 }
 var kindUNIX = netConnectionKindType{
-	family: syscall.AF_UNIX,
-	f:      "unix",
+	family:   syscall.AF_UNIX,
+	filename: "unix",
 }
 
 var netConnectionKindMap = map[string][]netConnectionKindType{
@@ -309,7 +309,7 @@ func NetConnectionsPid(kind string, pid int32) ([]NetConnectionStat, error) {
 	for _, t := range tmap {
 		var path string
 		var ls []connTmp
-		path = fmt.Sprintf("%s/net/%s", root, t.f)
+		path = fmt.Sprintf("%s/net/%s", root, t.filename)
 		switch t.family {
 		case syscall.AF_INET:
 			fallthrough
@@ -456,7 +456,7 @@ func decodeAddress(family uint32, src string) (Addr, error) {
 	}
 	decoded, err := hex.DecodeString(addr)
 	if err != nil {
-		return Addr{}, fmt.Errorf("decode error:", err)
+		return Addr{}, fmt.Errorf("decode error, %s", err)
 	}
 	var ip net.IP
 	// Assumes this is little_endian
diff --git a/net/net_linux_test.go b/net/net_linux_test.go
index 55f1ec2616611cdc29b9d1af99eb47a81b119ef1..47faeb934eca04606ca97178ff5a5349b68cf430 100644
--- a/net/net_linux_test.go
+++ b/net/net_linux_test.go
@@ -68,3 +68,8 @@ func TestDecodeAddress(t *testing.T) {
 		}
 	}
 }
+
+func TestReverse(t *testing.T) {
+	src := []byte{0x01, 0x02, 0x03}
+	assert.Equal(t, []byte{0x03, 0x02, 0x01}, Reverse(src))
+}
diff --git a/net/net_test.go b/net/net_test.go
index 0bac45fef44d178d56ce53b8ae98c00cb74e076d..aabce8174e73b15bd67ce09077df63ca1ac1bd55 100644
--- a/net/net_test.go
+++ b/net/net_test.go
@@ -91,7 +91,7 @@ func TestNetIOCountersPerNic(t *testing.T) {
 	}
 }
 
-func Test_getNetIOCountersAll(t *testing.T) {
+func TestGetNetIOCountersAll(t *testing.T) {
 	n := []NetIOCountersStat{
 		NetIOCountersStat{
 			Name:        "a",