v4.19.13 snapshot.
diff --git a/net/rxrpc/Kconfig b/net/rxrpc/Kconfig
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--- /dev/null
+++ b/net/rxrpc/Kconfig
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+#
+# RxRPC session sockets
+#
+
+config AF_RXRPC
+	tristate "RxRPC session sockets"
+	depends on INET
+	select CRYPTO
+	select KEYS
+	help
+	  Say Y or M here to include support for RxRPC session sockets (just
+	  the transport part, not the presentation part: (un)marshalling is
+	  left to the application).
+
+	  These are used for AFS kernel filesystem and userspace utilities.
+
+	  This module at the moment only supports client operations and is
+	  currently incomplete.
+
+	  See Documentation/networking/rxrpc.txt.
+
+config AF_RXRPC_IPV6
+	bool "IPv6 support for RxRPC"
+	depends on (IPV6 = m && AF_RXRPC = m) || (IPV6 = y && AF_RXRPC)
+	help
+	  Say Y here to allow AF_RXRPC to use IPV6 UDP as well as IPV4 UDP as
+	  its network transport.
+
+config AF_RXRPC_INJECT_LOSS
+	bool "Inject packet loss into RxRPC packet stream"
+	depends on AF_RXRPC
+	help
+	  Say Y here to inject packet loss by discarding some received and some
+	  transmitted packets.
+
+
+config AF_RXRPC_DEBUG
+	bool "RxRPC dynamic debugging"
+	depends on AF_RXRPC
+	help
+	  Say Y here to make runtime controllable debugging messages appear.
+
+	  See Documentation/networking/rxrpc.txt.
+
+
+config RXKAD
+	bool "RxRPC Kerberos security"
+	depends on AF_RXRPC
+	select CRYPTO
+	select CRYPTO_MANAGER
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_PCBC
+	select CRYPTO_FCRYPT
+	help
+	  Provide kerberos 4 and AFS kaserver security handling for AF_RXRPC
+	  through the use of the key retention service.
+
+	  See Documentation/networking/rxrpc.txt.