netdev - Re: [PATCH net-next 10/10] inet: add READ_ONCE(sk->sk_bound_dev_if) in INET

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Date:   Fri, 20 May 2022 06:17:24 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     "Chen, Rong A" <rong.a.chen@...el.com>
Cc:     kernel test robot <lkp@...el.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, llvm@...ts.linux.dev,
        kbuild-all@...ts.01.org, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 10/10] inet: add READ_ONCE(sk->sk_bound_dev_if)
 in INET_MATCH()

On Fri, May 20, 2022 at 1:40 AM Chen, Rong A <rong.a.chen@...el.com> wrote:
>
>
>
> On 5/13/2022 12:13 AM, Eric Dumazet wrote:
> > On Thu, May 12, 2022 at 6:16 AM kernel test robot <lkp@...el.com> wrote:
> >>
> >> Hi Eric,
> >>
> >> I love your patch! Perhaps something to improve:
> >>
> >> [auto build test WARNING on net-next/master]
> >>
> >> url:    https://github.com/intel-lab-lkp/linux/commits/Eric-Dumazet/net-add-annotations-for-sk-sk_bound_dev_if/20220512-073914
> >> base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git b57c7e8b76c646cf77ce4353a779a8b781592209
> >> config: hexagon-randconfig-r035-20220512 (https://download.01.org/0day-ci/archive/20220512/202205122132.HUrst9JA-lkp@intel.com/config)
> >> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f)
> >> reproduce (this is a W=1 build):
> >>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> >>          chmod +x ~/bin/make.cross
> >>          # https://github.com/intel-lab-lkp/linux/commit/c92cfd9f3ecb483ff055edb02f7498494b96ba68
> >>          git remote add linux-review https://github.com/intel-lab-lkp/linux
> >>          git fetch --no-tags linux-review Eric-Dumazet/net-add-annotations-for-sk-sk_bound_dev_if/20220512-073914
> >>          git checkout c92cfd9f3ecb483ff055edb02f7498494b96ba68
> >>          # save the config file
> >>          mkdir build_dir && cp config build_dir/.config
> >>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash net/ipv4/
> >
> > Thank you for the instructions.
> > Unfortunately this is failing for me.
>
> Hi Eric,
>
> Can you share the problem you met？

It seems the problem has disappeared on the host where I retried the
recipe this morning.

It is very possible that this was because I started from a fresh
directory, instead of reusing a prior git tree,
hoping to not pull 4 GB of data from the Internet :/