Lustre clients always initiate GSS context negotiation with PTLRPC_GSS_PROC_INIT and an empty context handle, and the negotiation completes in a single round. PTLRPC_GSS_PROC_CONTINUE_INIT is never sent by any Lustre client, so the server-side support for multi-round negotiation, in the ptlrpc_gss module and in lsvcgssd, is dead code.