Subject: Re: [PATCH] net: ag71xx: switch to napi_build_skb() to reuse skbuff_heads

From: Jakub Kicinski <[email-masked]>
Date: Wed, 6 Jul 2022 19:52:13 -0700

On Tue,  5 Jul 2022 08:44:34 +0800 Sieng-Piaw Liew wrote:
> --- a/drivers/net/ethernet/atheros/ag71xx.c
> +++ b/drivers/net/ethernet/atheros/ag71xx.c
> @@ -825,7 +825,7 @@ static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
>  		if (!skb)
>  			continue;
>  
> -		dev_kfree_skb_any(skb);
> +		napi_consume_skb(skb, !flush);

!flush is not sufficient here, napi can be called with a budget of 0.