[SRU][N][PATCH 1/1] selftests: net: move wait_local_port_listen to lib.sh
ChunAn Wu
an.wu at canonical.com
Wed Jun 24 03:27:00 UTC 2026
From: Hangbin Liu <liuhangbin at gmail.com>
BugLink: https://bugs.launchpad.net/bugs/2139460
The function wait_local_port_listen() is the only function defined in
net_helper.sh. Since some tests source both lib.sh and net_helper.sh,
we can simplify the setup by moving wait_local_port_listen() to lib.sh.
With this change, net_helper.sh becomes redundant and can be removed.
Signed-off-by: Hangbin Liu <liuhangbin at gmail.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe at kernel.org>
Link: https://patch.msgid.link/20250526014600.9128-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba at kernel.org>
(backported from commit d9d836bfa5e6e255c411733b4b1ce7a1f8346c54)
[an: resolved conflicts because Noble lacks newer selftests/drivers/net files
and newer MPTCP selftest include changes. Applied the helper move only
to Noble files which sourced net_helper.sh and kept Noble MPTCP files
unchanged.]
Signed-off-by: ChunAn Wu <an.wu at canonical.com>
---
tools/testing/selftests/net/Makefile | 2 +-
.../net/ipv6_route_update_soft_lockup.sh | 1 -
tools/testing/selftests/net/lib.sh | 21 ++++++++++++++++
tools/testing/selftests/net/net_helper.sh | 25 -------------------
tools/testing/selftests/net/pmtu.sh | 1 -
tools/testing/selftests/net/udpgro.sh | 2 +-
tools/testing/selftests/net/udpgro_bench.sh | 2 +-
tools/testing/selftests/net/udpgro_frglist.sh | 2 +-
tools/testing/selftests/net/udpgro_fwd.sh | 2 +-
9 files changed, 26 insertions(+), 32 deletions(-)
delete mode 100644 tools/testing/selftests/net/net_helper.sh
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index b2035ac8920c..8051f8311caf 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -97,7 +97,7 @@ TEST_PROGS += vlan_hw_filter.sh
TEST_PROGS += ipv6_route_update_soft_lockup.sh
TEST_FILES := settings
-TEST_FILES += in_netns.sh lib.sh net_helper.sh setup_loopback.sh setup_veth.sh
+TEST_FILES += in_netns.sh lib.sh setup_loopback.sh setup_veth.sh
include ../lib.mk
diff --git a/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh b/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh
index a6b2b1f9c641..c6866e42f95c 100755
--- a/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh
+++ b/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh
@@ -69,7 +69,6 @@
# which can affect the conditions needed to trigger a soft lockup.
source lib.sh
-source net_helper.sh
TEST_DURATION=300
ROUTING_TABLE_REFRESH_PERIOD=0.01
diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
index ea785a217540..449f39a7fe33 100644
--- a/tools/testing/selftests/net/lib.sh
+++ b/tools/testing/selftests/net/lib.sh
@@ -196,3 +196,24 @@ tc_rule_handle_stats_get()
| jq ".[] | select(.options.handle == $handle) | \
.options.actions[0].stats$selector"
}
+
+wait_local_port_listen()
+{
+ local listener_ns="${1}"
+ local port="${2}"
+ local protocol="${3}"
+ local pattern
+ local i
+
+ pattern=":$(printf "%04X" "${port}") "
+
+ # for tcp protocol additionally check the socket state
+ [ ${protocol} = "tcp" ] && pattern="${pattern}0A"
+ for i in $(seq 10); do
+ if ip netns exec "${listener_ns}" awk '{print $2" "$4}' \
+ /proc/net/"${protocol}"* | grep -q "${pattern}"; then
+ break
+ fi
+ sleep 0.1
+ done
+}
diff --git a/tools/testing/selftests/net/net_helper.sh b/tools/testing/selftests/net/net_helper.sh
deleted file mode 100644
index 6596fe03c77f..000000000000
--- a/tools/testing/selftests/net/net_helper.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-#
-# Helper functions
-
-wait_local_port_listen()
-{
- local listener_ns="${1}"
- local port="${2}"
- local protocol="${3}"
- local pattern
- local i
-
- pattern=":$(printf "%04X" "${port}") "
-
- # for tcp protocol additionally check the socket state
- [ ${protocol} = "tcp" ] && pattern="${pattern}0A"
- for i in $(seq 10); do
- if ip netns exec "${listener_ns}" awk '{print $2" "$4}' \
- /proc/net/"${protocol}"* | grep -q "${pattern}"; then
- break
- fi
- sleep 0.1
- done
-}
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 914e061ca9cd..87fe52c63920 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -205,7 +205,6 @@
# Check that PMTU exceptions are created for both paths.
source lib.sh
-source net_helper.sh
PAUSE_ON_FAIL=no
VERBOSE=0
diff --git a/tools/testing/selftests/net/udpgro.sh b/tools/testing/selftests/net/udpgro.sh
index d5ffd8c9172e..1dc337c709f8 100755
--- a/tools/testing/selftests/net/udpgro.sh
+++ b/tools/testing/selftests/net/udpgro.sh
@@ -3,7 +3,7 @@
#
# Run a series of udpgro functional tests.
-source net_helper.sh
+source lib.sh
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
diff --git a/tools/testing/selftests/net/udpgro_bench.sh b/tools/testing/selftests/net/udpgro_bench.sh
index 7080eae5312b..52485d85943c 100755
--- a/tools/testing/selftests/net/udpgro_bench.sh
+++ b/tools/testing/selftests/net/udpgro_bench.sh
@@ -3,7 +3,7 @@
#
# Run a series of udpgro benchmarks
-source net_helper.sh
+source lib.sh
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
diff --git a/tools/testing/selftests/net/udpgro_frglist.sh b/tools/testing/selftests/net/udpgro_frglist.sh
index e1ff645bd3d1..dd5a4972f62f 100755
--- a/tools/testing/selftests/net/udpgro_frglist.sh
+++ b/tools/testing/selftests/net/udpgro_frglist.sh
@@ -3,7 +3,7 @@
#
# Run a series of udpgro benchmarks
-source net_helper.sh
+source lib.sh
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh
index f4549e6894dd..b95c198219f4 100755
--- a/tools/testing/selftests/net/udpgro_fwd.sh
+++ b/tools/testing/selftests/net/udpgro_fwd.sh
@@ -1,7 +1,7 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
-source net_helper.sh
+source lib.sh
BPF_FILE="xdp_dummy.o"
readonly BASE="ns-$(mktemp -u XXXXXX)"
--
2.34.1
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