I just updated to 4.20 and ported forward my ath10k patches. Now the driver
will not register with mac80211 because this warning hits in
net/wireless/core.c:
/*
* This isn't well-defined right now. If you have an
* IBSS interface, then its beacon interval may change
* by joining other networks, and nothing prevents it
* from doing that.
* So technically we probably shouldn't even allow AP
* and IBSS in the same interface, but it seems that
* some drivers support that, possibly only with fixed
* beacon intervals for IBSS.
*/
if (WARN_ON(types & BIT(NL80211_IFTYPE_ADHOC) &&
c->beacon_int_min_gcd)) {
return -EINVAL;
}
It looks like this was triggered by:
Commit 0c317a02ca982ca093e71bf07cb562265ba40032
Author: Purushottam Kushwaha <[email protected]>
Date: Wed Oct 12 18:26:51 2016 +0530
cfg80211: support virtual interfaces with different beacon intervals
and
commit 8ebee73b574ad3dd1f14d461f65ceaffbd637650
Author: Anilkumar Kolli <[email protected]>
Date: Wed Mar 28 12:19:40 2018 +0300
ath10k: advertize beacon_int_min_gcd
To be honest, I don't see why that check for beacon_int_min_gcd is in the
registration
logic. Having it be '1' means that the driver/nic/firmware is flexible on
pretty much
any combination of beacon interval, so why should that trigger the WARN_ON case?
Thanks,
Ben
--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com
