qtnfmac: switch to core handling of rx/tx byte/packet counters
Use netdev->tstats instead of a member of qtnf_vif for storing a pointer to the per-cpu counters. This allows us to use core functionality for statistics handling. The driver sets netdev->needs_free_netdev, therefore freeing the per-cpu counters at the right point in time is a little bit tricky. Best option seems to be to use the ndo_init/ndo_uninit callbacks. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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