[Bisected] Connection failures when using wl driver (Broadcom) since rev. f2a6ad01

[Rafał Miłecki]

On 4 January 2017 at 17:25, Dan Williams <dcbw at redhat.com> wrote:
>> Well, I have updated NM to version 1.4.2 (previously version 1.2.x
>> was
>> used) and the problem seems to be gone. It is not quite obvious to
>> me
>> from NM's git repo yet, how exactly if was fixed but still.
>
> After the randomization was deployed, the NM team found some issues
> where NM didn't wait long enough (or verify well enough) that some
> drivers had actually changed the MAC address before continuing with
> configuration.  That impacted drivers like wl, brcmfmac, and some
> others that report "success!" to the MAC change request, but don't
> actually change the MAC address for a short period of time.  NM was not
> waiting for the change to actually happen in the device, and was
> assuming that the driver had changed the MAC after reporting success.

Would you care to report this to wireless team (brcmfmac is an
upstream driver), please? I took a look at
brcmf_netdev_set_mac_address and I'm not sure what may be missing
there.