| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.7 085/120] selftests/bpf: fix netdevsim trap_flow_action_cookie read | Date | Mon, 3 Aug 2020 14:19:03 +0200 |
| |
From: Hangbin Liu <liuhangbin@gmail.com>
[ Upstream commit 4bbca662df2523ff7ad3224463f1f28e6a118044 ]
When read netdevsim trap_flow_action_cookie, we need to init it first, or we will get "Invalid argument" error.
Fixes: d3cbb907ae57 ("netdevsim: add ACL trap reporting cookie as a metadata") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- tools/testing/selftests/bpf/test_offload.py | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py index 8294ae3ffb3cb..43c9cda199b82 100755 --- a/tools/testing/selftests/bpf/test_offload.py +++ b/tools/testing/selftests/bpf/test_offload.py @@ -318,6 +318,9 @@ class DebugfsDir: continue if os.path.isfile(p): + # We need to init trap_flow_action_cookie before read it + if f == "trap_flow_action_cookie": + cmd('echo deadbeef > %s/%s' % (path, f)) _, out = cmd('cat %s/%s' % (path, f)) dfs[f] = out.strip() elif os.path.isdir(p): -- 2.25.1
|