On Mon, 2022-04-11 at 10:25 +0100, Lee Jones wrote: > So what exactly happened here? What does this failure tell us? Probably nothing. > Is the LKP test broken or did I overlook something in the kernel > patch? I think the test is just randomly fluking out. > How does LKP make use of NL80211_ATTR_REG_ALPHA2? > > I'm struggling to find any mention of 'hostapd.py' or 'ap_country' in > LKP [0]. Are these benchmarks bespoke add-ons? > it's running the tests from hostap: https://w1.fi/cgit/hostap/tree/tests/hwsim Anyway, I think we'd better fix the issue like this: - [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, + /* allow 3 for NUL-termination, we used to declare this NLA_STRING */ + [NL80211_ATTR_REG_ALPHA2] = NLA_POLICY_RANGE(NLA_BINARY, 2, 3), What do you think? johannes