linux-kernel - Re: [PATCH net-next 1/2] bpf, mlx4: fix prog refcount in mlx4_en_try_alloc

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Message-ID: <582302B3.9040501@iogearbox.net>
Date:   Wed, 09 Nov 2016 12:04:19 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     kbuild test robot <lkp@...el.com>
CC:     kbuild-all@...org, Zhiyi Sun <zhiyisun@...il.com>,
        bblanco@...mgrid.com, Tariq Toukan <tariqt@...lanox.com>,
        Yishai Hadas <yishaih@...lanox.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        alexei.starovoitov@...il.com
Subject: Re: [PATCH net-next 1/2] bpf, mlx4: fix prog refcount in mlx4_en_try_alloc_resources
 error path

On 11/09/2016 11:58 AM, kbuild test robot wrote:
[...]
> All errors (new ones prefixed by >>):
>
>     drivers/net/ethernet/mellanox/mlx4/en_netdev.c: In function 'mlx4_xdp_set':
>>> drivers/net/ethernet/mellanox/mlx4/en_netdev.c:2752:4: error: implicit declaration of function 'bpf_prog_add_undo' [-Werror=implicit-function-declaration]
>         bpf_prog_add_undo(prog, priv->rx_ring_num - 1);
>         ^~~~~~~~~~~~~~~~~
>     cc1: some warnings being treated as errors

Ahh right, needs an empty variant for !CONFIG_BPF_SYSCALL. I'll fix that up
before sending an official patch.

Thanks,
Daniel