Hi Jochen,
[added CCs since it affects bridge code]
> If I read this correctly, the EIP in the last line corresponds to
> net/bridge/br_if.c, line 36:
>
> static int port_cost(struct net_device *dev)
> {
> if (dev->ethtool_ops->get_settings) {
> ^^^^
>
> As far as I can figure out, dev->ethtool_ops is NULL and the crash
> happens while trying to derefernce ...->get_settings.
>
> Is dev->ethtool_ops allowed to be NULL? In this case the appended
> patch might be the correct fix. At least it makes the oops disappear
> for me. Another possible fix would be to add an ethtool_ops structure
> to the device created by b43.
I don't think adding ethtool_ops in mac80211 should be necessary.
Stephen?
johannes
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