net: enetc: set up XDP program under enetc_reconfigure()
Offloading a BPF program to the RX path of the driver suffers from the same problems as the PTP reconfiguration - improper error checking can leave the driver in an invalid state, and the link on the PHY is lost. Reuse the enetc_reconfigure() procedure, but here, we need to run some code in the middle of the ring reconfiguration procedure - while the interface is still down. Introduce a callback which makes that possible. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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