Re: [PATCH 4.19] mt76x0: fix remove_interface

[Stanislaw Gruszka <sgruszka@redhat.com>]

On Mon, Sep 03, 2018 at 09:36:37AM -0400, Sid Hayn wrote:
> Best I can say is that it seemed to happen after a failed connection.  It
> would connect and disconnect a few times and work fine, but if it failed to
> connect for any reason (mostly mismatched settings between AP and
> wpa_supplicant.conf) then the bug would occur. So, wpa_supplicant would up
> the interface, try to connect, fail, down the interface and exit, then the
> next loop of my script (with a different conf file) would start and
> wpa_supplicant would be unable to up the interface.
<snip>
> > For bug fixes please always try to describe the bug and symptoms. I can
> > add it this time. From the other thread I saw that 'ifconfig up' failed
> > like this:
> >
> > SIOCSIFFLAGS: No space left on device
> >
> > But in what cases did that happen? (I assume not always)

Problem will happen when we remove interface more than 8 times.
I'm not sure at how this can be triggerd execpt by doing:

iw dev <devname> interface add <name> type <type>
iw dev <name> del

but looks somehow this is triggerd by Sid scripts
by just by using wpa_supplicant and ifconfig. 

Regards
Stanislaw