diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 97e62f3..192d0c7 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -101,6 +101,8 @@
 extern int SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
 		     unsigned int *nbytes, char **buf, int *buf_type);
 extern int smb2_async_writev(struct cifs_writedata *wdata);
+extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
+		      unsigned int *nbytes, struct kvec *iov, int n_vec);
 extern int SMB2_echo(struct TCP_Server_Info *server);
 
 #endif			/* _SMB2PROTO_H */