On Sat, Sep 12, 2020 at 1:37 AM Xie He <xie.he.0...@gmail.com> wrote: > > On Fri, Sep 11, 2020 at 7:32 AM Willem de Bruijn > <willemdebruijn.ker...@gmail.com> wrote: > > > > From a quick scan, a few device types that might trigger this > > > > net/atm/clip.c > > drivers/net/wan/hdlc_fr.c > > drivers/net/appletalk/ipddp.c > > drivers/net/ppp/ppp_generic.c > > drivers/net/net_failover.c > > I have recently fixed this problem in the "net" tree in hdlc_fr.c. > > Glad to see the number of drivers that have this problem is not very big.
I am concerned about adding a WARN_ON_ONCE that we already expect to fire on some platforms. Probably better to add the documentation without the warning. I know I suggested the check before, sorry for the churn, but I hadn't checked the existing state yet.