1 files changed, 1 insertions, 5 deletions
diff --git a/llgo/third_party/gofrontend/libgo/go/net/mac.go b/llgo/third_party/gofrontend/libgo/go/net/mac.go
index d616b1f689f..8594a9146ae 100644
--- a/llgo/third_party/gofrontend/libgo/go/net/mac.go
+++ b/llgo/third_party/gofrontend/libgo/go/net/mac.go
@@ -2,12 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// MAC address manipulations
-
 package net
 
-import "errors"
-
 const hexDigit = "0123456789abcdef"
 
 // A HardwareAddr represents a physical hardware address.
@@ -82,5 +78,5 @@ func ParseMAC(s string) (hw HardwareAddr, err error) {
 	return hw, nil
 
 error:
-	return nil, errors.New("invalid MAC address: " + s)
+	return nil, &AddrError{Err: "invalid MAC address", Addr: s}
 }