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Re: wlan0: set_features() failed (-1); wanted 0x0000000000004008, left 0x0000000000004808

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On Thu, 2015-12-03 at 09:07 +0200, Kalle Valo wrote:

> I'm using ath.git master branch which is latest wireless-testing plus
> latest ath patches. Any ideas what's causing these? mac80211 or
> something else?

This is usually caused by a driver (in this case mac80211) implementing
ndo_set_features, but I never accepted that patch as far as I remember,
it's pending in patchwork. I don't see that in your tree either, so
that's very puzzling.

Clearly it's trying to turn off NETIF_F_GSO, as it should since the
drivers both don't advertise NETIF_F_SG right now.

The code you're looking at is in __netdev_update_features(), but I
can't explain how it would get into this message if ndo_set_features is
NULL. Perhaps you should recompile the kernel from scratch.

johannes
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