SUNRPC: Push svcxdr_init_encode() into svc_process_common()

Now that all vs_dispatch functions invoke svcxdr_init_encode(), it
is common code and can be pushed down into the generic RPC server.

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

1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index f3b6eb9accd7..72014c9216fc 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -475,6 +475,27 @@ xdr_stream_encode_u32(struct xdr_stream *xdr, __u32 n)
 }
 
 /**
+ * xdr_stream_encode_be32 - Encode a big-endian 32-bit integer
+ * @xdr: pointer to xdr_stream
+ * @n: integer to encode
+ *
+ * Return values:
+ *   On success, returns length in bytes of XDR buffer consumed
+ *   %-EMSGSIZE on XDR buffer overflow
+ */
+static inline ssize_t
+xdr_stream_encode_be32(struct xdr_stream *xdr, __be32 n)
+{
+	const size_t len = sizeof(n);
+	__be32 *p = xdr_reserve_space(xdr, len);
+
+	if (unlikely(!p))
+		return -EMSGSIZE;
+	*p = n;
+	return len;
+}
+
+/**
  * xdr_stream_encode_u64 - Encode a 64-bit integer
  * @xdr: pointer to xdr_stream
  * @n: 64-bit integer to encode