Re: [PATCH net v2] octeontx2-pf: fix XDP frames freed as skbs on interface down

[Daniel Machon]

> On interface down, the TX completion cleanup also runs on the XDP
> queues, but treats the pending xdp_frames as skbs. Freeing them with
> dev_kfree_skb_any() corrupts page pool memory. AF_XDP TX completions
> in these queues were never reported to the socket either.
> 
> This happens when XDP_TX or redirected packets are still in flight on
> ifdown, or when the XDP program is replaced.
> 
> Fixes: 94c80f748873 ("octeontx2-pf: use xdp_return_frame() to free xdp buffers")
> Signed-off-by: Nicolai Buchwitz <nb@xxxxxxxxxxx>

Reviewed-by: Daniel Machon <daniel.machon@xxxxxxxxxxxxx>