linux-kernel - Re: [PATCH 1/1] net: fec: using page pool to manage RX buffers

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Date:   Fri, 30 Sep 2022 22:05:00 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Shenwei Wang <shenwei.wang@....com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Wei Fang <wei.fang@....com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] net: fec: using page pool to manage RX buffers

> -static bool fec_enet_copybreak(struct net_device *ndev, struct sk_buff **skb,
> -			       struct bufdesc *bdp, u32 length, bool swap)
> +static bool __maybe_unused
> +fec_enet_copybreak(struct net_device *ndev, struct sk_buff **skb,
> +		   struct bufdesc *bdp, u32 length, bool swap)
>  {

Why add __maybe_unused? If its not used, remove it. We don't leave
dead functions in the code.

     Andrew