[PATCH net] net: xilinx: axienet: Fix packet counting

[Jakub Kicinski]

On Tue,  3 Sep 2024 13:56:19 -0400 Sean Anderson wrote:
> axienet_free_tx_chain returns the number of DMA descriptors it's
> handled. However, axienet_tx_poll treats the return as the number of
> packets. When scatter-gather SKBs are enabled, a single packet may use
> multiple DMA descriptors, which causes incorrect packet counts. Fix this
> by explicitly keepting track of the number of packets processed as
> separate from the DMA descriptors.

budget doubles up as a "are we really in NAPI" flag.
You can't pass non-zero budget to napi_consume_skb() if not in NAPI.
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