linux-kernel - Re: [PATCH net-next 1/9] net: tcp: introduce tcp_drop

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Date:   Wed, 16 Feb 2022 11:50:04 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     menglong8.dong@...il.com, dsahern@...nel.org, edumazet@...gle.com,
        davem@...emloft.net, mingo@...hat.com, yoshfuji@...ux-ipv6.org,
        ast@...nel.org, daniel@...earbox.net, hawk@...nel.org,
        john.fastabend@...il.com, imagedong@...cent.com,
        talalahmad@...gle.com, keescook@...omium.org,
        ilias.apalodimas@...aro.org, alobakin@...me, memxor@...il.com,
        atenart@...nel.org, bigeasy@...utronix.de, pabeni@...hat.com,
        linyunsheng@...wei.com, arnd@...db.de, yajun.deng@...ux.dev,
        roopa@...dia.com, willemb@...gle.com, vvs@...tuozzo.com,
        cong.wang@...edance.com, luiz.von.dentz@...el.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, flyingpeng@...cent.com
Subject: Re: [PATCH net-next 1/9] net: tcp: introduce tcp_drop_reason()

On Wed, 16 Feb 2022 07:58:21 -0800
Jakub Kicinski <kuba@...nel.org> wrote:

> On Wed, 16 Feb 2022 11:54:18 +0800 menglong8.dong@...il.com wrote:
> > +static inline void tcp_drop(struct sock *sk, struct sk_buff *skb)
> > +{
> > +	tcp_drop_reason(sk, skb, SKB_DROP_REASON_NOT_SPECIFIED);
> >  }  
> 
> Please make this non-inline. The compiler will inline it anyway, and 
> if it's a static inline compiler will not warn us that it should be
> removed once all callers are gone.

I guess that's no longer true for C files.

  https://lore.kernel.org/all/202202132037.4aN017dU-lkp@intel.com/

-- Steve