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From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Yihao Han <hanyihao@vivo.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: kernel@vivo.com, Yihao Han <hanyihao@vivo.com>
Subject: Re: [PATCH v2] samples/bpf: xdpsock: fix swap.cocci warning
Date: Fri, 10 Dec 2021 15:26:30 +0100	[thread overview]
Message-ID: <877dccwn6x.fsf@toke.dk> (raw)
In-Reply-To: <20211209092250.56430-1-hanyihao@vivo.com>

Yihao Han <hanyihao@vivo.com> writes:

> Fix following swap.cocci warning:
> ./samples/bpf/xdpsock_user.c:528:22-23:
> WARNING opportunity for swap()
>
> Signed-off-by: Yihao Han <hanyihao@vivo.com>

Erm, did this get applied without anyone actually trying to compile
samples? I'm getting build errors as:

  CC  /home/build/linux/samples/bpf/xsk_fwd.o
/home/build/linux/samples/bpf/xsk_fwd.c: In function ‘swap_mac_addresses’:
/home/build/linux/samples/bpf/xsk_fwd.c:658:9: warning: implicit declaration of function ‘swap’; did you mean ‘swab’? [-Wimplicit-function-declaration]
  658 |         swap(*src_addr, *dst_addr);
      |         ^~~~
      |         swab

/usr/bin/ld: /home/build/linux/samples/bpf/xsk_fwd.o: in function `thread_func':
xsk_fwd.c:(.text+0x440): undefined reference to `swap'
collect2: error: ld returned 1 exit status


Could we maybe get samples/bpf added to the BPF CI builds? :)

-Toke


  parent reply	other threads:[~2021-12-10 14:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-09  9:22 [PATCH v2] samples/bpf: xdpsock: fix swap.cocci warning Yihao Han
2021-12-09 20:11 ` John Fastabend
2021-12-10 14:26 ` Toke Høiland-Jørgensen [this message]
2021-12-10 23:53   ` Andrii Nakryiko
2021-12-11 18:07     ` Toke Høiland-Jørgensen
2021-12-12 19:46       ` Andrii Nakryiko
2021-12-13 12:09         ` Toke Høiland-Jørgensen

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