-diff -urN linux-2.4.25/drivers/atm/Makefile linux-2.4.25-atmdd/drivers/atm/Makefile
---- linux-2.4.25/drivers/atm/Makefile 2004-02-23 15:18:29.000000000 +0100
-+++ linux-2.4.25-atmdd/drivers/atm/Makefile 2004-02-29 22:51:26.000000000 +0100
-@@ -31,6 +31,7 @@
- endif
-
- obj-$(CONFIG_ATM_DUMMY) += adummy.o
-+obj-$(CONFIG_ATM_DD) += atmdd.o
- obj-$(CONFIG_ATM_TCP) += atmtcp.o
- obj-$(CONFIG_ATM_FIRESTREAM) += firestream.o
- obj-$(CONFIG_ATM_LANAI) += lanai.o
-diff -urN linux-2.4.25/drivers/atm/Kconfig linux-2.4.25-atmdd/drivers/atm/Kconfig
---- linux-2.4.25/drivers/atm/Kcnfig 2003-08-25 13:44:41.000000000 +0200
-+++ linux-2.4.25-atmdd/drivers/atm/Kconfig 2004-02-29 22:52:59.000000000 +0100
-@@ -4,6 +4,14 @@
- default y
-
- if ATM_DRIVERS && NETDEVICES && ATM
-+
-+config ATM_DD
-+ tristate "ATM loopback"
-+ depends on INET && ATM
-+ help
-+ This is an example atm driver. It does not require any actual ATM
-+ hardware. It supports AAL5 and AAL0. Frames are merely looped back
-+ to the sender on the same VC they were sent.
-
- config ATM_DUMMY
- tristate "Dummy ATM driver"
-diff -urN linux-2.4.25/drivers/atm/atmdd.c linux-2.4.25-atmdd/drivers/atm/atmdd.c
---- linux-2.4.25/drivers/atm/atmdd.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.25-atmdd/drivers/atm/atmdd.c 2004-02-29 22:58:11.000000000 +0100
+diff -urN linux-5.9/drivers.org/atm/atmdd.c linux-5.9/drivers/atm/atmdd.c
+--- linux-5.9/drivers.org/atm/atmdd.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-5.9/drivers/atm/atmdd.c 2020-11-03 13:31:48.120071319 +0100
@@ -0,0 +1,920 @@
+/*
+#######################################################################
+module_exit(myatmdd_exit);
+
+#endif /* MODULE */
+diff -urN linux-5.9/drivers.org/atm/Kconfig linux-5.9/drivers/atm/Kconfig
+--- linux-5.9/drivers.org/atm/Kconfig 2020-10-11 23:15:50.000000000 +0200
++++ linux-5.9/drivers/atm/Kconfig 2020-11-03 13:31:48.120071319 +0100
+@@ -15,6 +15,14 @@
+
+ if ATM_DRIVERS && NETDEVICES && ATM
+
++config ATM_DD
++ tristate "ATM loopback"
++ depends on INET && ATM
++ help
++ This is an example atm driver. It does not require any actual ATM
++ hardware. It supports AAL5 and AAL0. Frames are merely looped back
++ to the sender on the same VC they were sent.
++
+ config ATM_DUMMY
+ tristate "Dummy ATM driver"
+ help
+diff -urN linux-5.9/drivers.org/atm/Makefile linux-5.9/drivers/atm/Makefile
+--- linux-5.9/drivers.org/atm/Makefile 2020-10-11 23:15:50.000000000 +0200
++++ linux-5.9/drivers/atm/Makefile 2020-11-03 13:31:48.120071319 +0100
+@@ -26,6 +26,7 @@
+ endif
+
+ obj-$(CONFIG_ATM_DUMMY) += adummy.o
++obj-$(CONFIG_ATM_DD) += atmdd.o
+ obj-$(CONFIG_ATM_TCP) += atmtcp.o
+ obj-$(CONFIG_ATM_LANAI) += lanai.o
+