Merge branch 'expand-txtimestamp-selftest'

Willem de Bruijn says:

====================
expand txtimestamp selftest

Convert the existing txtimestamp test to run as part of kselftest
and return a pass/fail.

Also expand the variations of timestamping tested, including packet
sockets, ipv6 raw and dgram and passing options using cmsg.

These are enough changes to split across a few patches, even if all
changes are only this one test.
====================

Signed-off-by: David S. Miller <[email protected]>

Author: davem330

tools/testing/selftests/Makefile

@@ -25,6 +25,7 @@ TARGETS += mount
 TARGETS += mqueue
 TARGETS += net
 TARGETS += netfilter
+TARGETS += networking/timestamping
 TARGETS += nsfs
 TARGETS += powerpc
 TARGETS += proc

tools/testing/selftests/networking/timestamping/Makefile

@@ -1,12 +1,13 @@
 # SPDX-License-Identifier: GPL-2.0
 CFLAGS += -I../../../../../usr/include
 
-TEST_PROGS := hwtstamp_config rxtimestamp timestamping txtimestamp
+TEST_GEN_FILES := hwtstamp_config rxtimestamp timestamping txtimestamp
+TEST_PROGS := txtimestamp.sh
 
 all: $(TEST_PROGS)
 
 top_srcdir = ../../../../..
 include ../../lib.mk
 
 clean:
-	rm -fr $(TEST_PROGS)
+	rm -fr $(TEST_GEN_FILES)

tools/testing/selftests/networking/timestamping/config

@@ -0,0 +1,2 @@
+CONFIG_IFB=y
+CONFIG_NET_SCH_NETEM=y