[PATCH v2] [net] net: airoha: Clean up RX queues in airoha_dev_stop

[Lorenzo Bianconi]

> Thanks Simon for forwarding the AI review. I've reviewed all three
> concerns:
> 
> #1 (NAPI race) and #2 (RX refill) are valid. #2 is the decisive
> issue: airoha_dev_open() has no RX ring refill, so draining the
> queues in stop would cause RX stall on next open. This aligns with
> Lorenzo's earlier feedback — RX queues don't need cleanup in
> dev_stop(). I'll drop this patch.
> 
> #3 (q->skb leak) is a pre-existing issue, not introduced by this
> patch. It exists even in the module unload path
> (airoha_qdma_cleanup()). @Lorenzo — do you think this warrants a
> fix? A one-liner in airoha_qdma_cleanup_rx_queue() would cover both
> paths. Or is this too unlikely to matter in practice?

Soon I will post a patch to run airoha_qdma_cleanup_tx_queue() just in
airoha_hw_cleanup() so I think we should just drop this patch.

Regards,
Lorenzo
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