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[bpf,v4,6/7] selftests/bpf/test_offload.py: reset ethtool features after failed setting

Message ID 160752226280.110217.10696241563705667871.stgit@toke.dk (mailing list archive)
State Accepted
Commit 766e62b7fcd2cf1d43e6594ba37c659dc48f7ddb
Delegated to: BPF
Headers show
Series selftests/bpf: Restore test_offload.py to working order | expand

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Commit Message

Toke Høiland-Jørgensen Dec. 9, 2020, 1:57 p.m. UTC 
From: Toke Høiland-Jørgensen <toke@redhat.com>

When setting the ethtool feature flag fails (as expected for the test), the
kernel now tracks that the feature was requested to be 'off' and refuses to
subsequently disable it again. So reset it back to 'on' so a subsequent
disable (that's not supposed to fail) can succeed.

Fixes: 417ec26477a5 ("selftests/bpf: add offload test based on netdevsim")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
 tools/testing/selftests/bpf/test_offload.py |    1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py
index 51a5e4d939cc..2128fbd8414b 100755
--- a/tools/testing/selftests/bpf/test_offload.py
+++ b/tools/testing/selftests/bpf/test_offload.py
@@ -946,6 +946,7 @@  try:
     start_test("Test disabling TC offloads is rejected while filters installed...")
     ret, _ = sim.set_ethtool_tc_offloads(False, fail=False)
     fail(ret == 0, "Driver should refuse to disable TC offloads with filters installed...")
+    sim.set_ethtool_tc_offloads(True)
 
     start_test("Test qdisc removal frees things...")
     sim.tc_flush_filters()