diff --git a/vendor/golang.org/x/sys/unix/syscall_linux_amd64.go b/vendor/golang.org/x/sys/unix/syscall_linux_amd64.go
index 088ce0f..85cd97d 100644
--- a/vendor/golang.org/x/sys/unix/syscall_linux_amd64.go
+++ b/vendor/golang.org/x/sys/unix/syscall_linux_amd64.go
@@ -2,11 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build amd64 && linux
 // +build amd64,linux
 
 package unix
 
-//sys	Dup2(oldfd int, newfd int) (err error)
+//sys	dup2(oldfd int, newfd int) (err error)
 //sysnb	EpollCreate(size int) (fd int, err error)
 //sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
 //sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
@@ -55,8 +56,8 @@
 }
 
 //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
-//sys	Setfsgid(gid int) (err error)
-//sys	Setfsuid(uid int) (err error)
+//sys	setfsgid(gid int) (prev int, err error)
+//sys	setfsuid(uid int) (prev int, err error)
 //sysnb	Setregid(rgid int, egid int) (err error)
 //sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
 //sysnb	Setresuid(ruid int, euid int, suid int) (err error)
@@ -138,7 +139,7 @@
 	return
 }
 
-//sysnb pipe2(p *[2]_C_int, flags int) (err error)
+//sysnb	pipe2(p *[2]_C_int, flags int) (err error)
 
 func Pipe2(p []int, flags int) (err error) {
 	if len(p) != 2 {
@@ -171,6 +172,10 @@
 	cmsg.Len = uint64(length)
 }
 
+func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
+	rsa.Service_name_len = uint64(length)
+}
+
 //sys	poll(fds *PollFd, nfds int, timeout int) (n int, err error)
 
 func Poll(fds []PollFd, timeout int) (n int, err error) {