netdev - Re: [PATCH] netfilter: bpf_link: avoid unused-function warning

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Date: Tue, 01 Aug 2023 19:27:33 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Daniel Xu" <dxu@...uu.xyz>, "Arnd Bergmann" <arnd@...nel.org>
Cc: "Pablo Neira Ayuso" <pablo@...filter.org>,
 "Jozsef Kadlecsik" <kadlec@...filter.org>, "Florian Westphal" <fw@...len.de>,
 "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>,
 netfilter-devel@...r.kernel.org, coreteam@...filter.org,
 Netdev <netdev@...r.kernel.org>, linux-kernel@...r.kernel.org,
 bpf@...r.kernel.org
Subject: Re: [PATCH] netfilter: bpf_link: avoid unused-function warning

On Tue, Aug 1, 2023, at 17:20, Daniel Xu wrote:
> Hi Arnd,
>
> On Tue, Aug 01, 2023 at 05:02:41PM +0200, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd@...db.de>
>> 
>> The newly added function is unused in some random configurations:
>> 
>> net/netfilter/nf_bpf_link.c:32:1: error: 'get_proto_defrag_hook' defined but not used [-Werror=unused-function]
>>    32 | get_proto_defrag_hook(struct bpf_nf_link *link,
>>       | ^~~~~~~~~~~~~~~~~~~~~
>> 
>
> This was fixed in 81584c23f249 ("netfilter: bpf: Only define 
> get_proto_defrag_hook() if necessary").

Ok, I guess this will be in tomorrow's linux-next then, right?

    Arnd