lockd: Use xdrgen XDR functions for the NLMv3 NULL procedure

Hand-written XDR encoders and decoders are difficult to maintain
and can diverge from protocol specifications. Migrating to
xdrgen-generated code improves type safety and ensures the
implementation matches the NLM version 3 protocol specification
exactly.

Convert the NULL procedure to use nlm_svc_decode_void and
nlm_svc_encode_void, generated from
Documentation/sunrpc/xdr/nlm3.x. NULL has no arguments or
results, so it is the first procedure converted.

NULL returns no XDR-encoded data, so pc_xdrressize is set to
XDR_void. The argzero field is also set to zero since xdrgen
decoders initialize all decoded values.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

0 files changed, 0 insertions, 0 deletions