[PATCH net-next 12/14] net: ethernet: mtk_eth_soc: reduce unnecessary interrupts

Jakub Kicinski kuba at kernel.org
Thu Apr 22 17:26:08 BST 2021


On Wed, 21 Apr 2021 21:09:12 -0700 Ilya Lipnitskiy wrote:
> @@ -1551,8 +1551,9 @@ static int mtk_napi_rx(struct napi_struct *napi, int budget)
>  		remain_budget -= rx_done;
>  		goto poll_again;
>  	}
> -	napi_complete(napi);
> -	mtk_rx_irq_enable(eth, MTK_RX_DONE_INT);
> +
> +	if (napi_complete(napi))
> +		mtk_rx_irq_enable(eth, MTK_RX_DONE_INT);

Why not napi_complete_done(napi, rx_done + budget - remain_budget)?
(Modulo possible elimination of rx_done in this function.)



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