selftests/net: give more time to udpgro bg processes to complete startup

Bugzilla: https://bugzilla.redhat.com/2143407

Conflicts: don't pick the hunk for udpgro_frglist.sh because we don't
have this test in our tree

commit cdb525c
Author: Adrien Thierry <athierry@redhat.com>
Date:   Tue Nov 1 14:48:08 2022 -0400

    selftests/net: give more time to udpgro bg processes to complete startup

    In some conditions, background processes in udpgro don't have enough
    time to set up the sockets. When foreground processes start, this
    results in the test failing with "./udpgso_bench_tx: sendmsg: Connection
    refused". For instance, this happens from time to time on a Qualcomm
    SA8540P SoC running CentOS Stream 9.

    To fix this, increase the time given to background processes to
    complete the startup before foreground processes start.

    Signed-off-by: Adrien Thierry <athierry@redhat.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Adrien Thierry <athierry@redhat.com>

Author: athierry1

tools/testing/selftests/net/udpgro.sh

@@ -50,7 +50,7 @@ run_one() {
 		echo "failed" &
 
 	# Hack: let bg programs complete the startup
-	sleep 0.1
+	sleep 0.2
 	./udpgso_bench_tx ${tx_args}
 	ret=$?
 	wait $(jobs -p)
@@ -117,7 +117,7 @@ run_one_2sock() {
 		echo "failed" &
 
 	# Hack: let bg programs complete the startup
-	sleep 0.1
+	sleep 0.2
 	./udpgso_bench_tx ${tx_args} -p 12345
 	sleep 0.1
 	# first UDP GSO socket should be closed at this point

tools/testing/selftests/net/udpgro_bench.sh

@@ -39,7 +39,7 @@ run_one() {
 	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
 
 	# Hack: let bg programs complete the startup
-	sleep 0.1
+	sleep 0.2
 	./udpgso_bench_tx ${tx_args}
 }