netdev - Re: [PATCH bpf-next v3 07/15] i40e: separate kernel allocated rx_bi rings from AF

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Date:   Tue, 19 May 2020 18:20:09 +0200
From:   Björn Töpel <bjorn.topel@...el.com>
To:     kbuild test robot <lkp@...el.com>,
        Björn Töpel <bjorn.topel@...il.com>,
        ast@...nel.org, daniel@...earbox.net, davem@...emloft.net,
        kuba@...nel.org, hawk@...nel.org, john.fastabend@...il.com,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        magnus.karlsson@...el.com, jonathan.lemon@...il.com,
        jeffrey.t.kirsher@...el.com
Cc:     kbuild-all@...ts.01.org, maximmi@...lanox.com,
        maciej.fijalkowski@...el.com, intel-wired-lan@...ts.osuosl.org
Subject: Re: [PATCH bpf-next v3 07/15] i40e: separate kernel allocated rx_bi
 rings from AF_XDP rings

On 2020-05-19 17:18, kbuild test robot wrote:
> Hi "Björn,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on bpf-next/master]
> [also build test WARNING on jkirsher-next-queue/dev-queue next-20200518]
> [cannot apply to bpf/master linus/master v5.7-rc6]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> 
> url:    https://github.com/0day-ci/linux/commits/Bj-rn-T-pel/Introduce-AF_XDP-buffer-allocation-API/20200519-203122
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
> config: riscv-allyesconfig (attached as .config)
> compiler: riscv64-linux-gcc (GCC) 9.3.0
> reproduce:
>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # save the attached .config to linux build tree
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@...el.com>
> 
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> 
>>> drivers/net/ethernet/intel/i40e/i40e_txrx.c:531:6: warning: no previous prototype for 'i40e_fd_handle_status' [-Wmissing-prototypes]
> 531 | void i40e_fd_handle_status(struct i40e_ring *rx_ring, u64 qword0_raw,
> |      ^~~~~~~~~~~~~~~~~~~~~
>

Yes, this could indeed be made static. Hmm, I wonder why I didn't get
that warning on my x86-64 build!? I'll spin a v4 (or do a follow-up?).


Björn