Re: [PATCH net-next 2/6] net: ipa: reorder netdev pointer assignments

[Alex Elder]

On 8/5/21 8:27 PM, Jakub Kicinski wrote:
> On Wed,  4 Aug 2021 10:36:22 -0500 Alex Elder wrote:
> > Assign the ipa->modem_netdev and endpoint->netdev pointers *before*
> > registering the network device.  As soon as the device is
> > registered it can be opened, and by that time we'll want those
> > pointers valid.
> >
> > Similarly, don't make those pointers NULL until *after* the modem
> > network device is unregistered in ipa_modem_stop().
> >
> > Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
>
> This one seems like a pretty legit race, net would be better if you
> don't mind.

I don't mind at all.  But now that it's accepted, I'm not sure how
to go about getting it back-ported.  Mainly I don't want to interfere
with any interaction between net/master and net-next/master...  Maybe
you're in a better position to do that.  And if so:

Fixes: 57f63faf0562 ("net: ipa: only set endpoint netdev pointer when in 
use")

I'll happily do it if you can tell me the best way how.  Thanks.

					-Alex