From: Nick Desaulniers <ndesaulniers@google.com>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: kernel test robot <lkp@intel.com>,
Andrii Nakryiko <andrii@kernel.org>,
clang-built-linux <clang-built-linux@googlegroups.com>,
kbuild-all@lists.01.org,
Linux Memory Management List <linux-mm@kvack.org>,
Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: [linux-next:master 7954/8516] include/linux/trace_events.h:695:81: warning: unused parameter 'bpf_cookie'
Date: Tue, 17 Aug 2021 17:37:59 -0700 [thread overview]
Message-ID: <CAKwvOdk4nJFMqaNje1xwg-RBj3mSK-5n8ZZD6szsJ=K8O-uMig@mail.gmail.com> (raw)
In-Reply-To: <CAEf4BzaLJqYxRWZJbVMr+oa+_7Y7mgfxtUg3KuvbqMo=fT4-7Q@mail.gmail.com>
On Tue, Aug 17, 2021 at 5:25 PM Andrii Nakryiko
<andrii.nakryiko@gmail.com> wrote:
>
> On Tue, Aug 17, 2021 at 3:36 PM kernel test robot <lkp@intel.com> wrote:
> >
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > head: 9803fb968c8c2e1283f67b3baeb88e0adba435b4
> > commit: 82e6b1eee6a8875ef4eacfd60711cce6965c6b04 [7954/8516] bpf: Allow to specify user-provided bpf_cookie for BPF perf links
> > config: i386-randconfig-r021-20210816 (attached as .config)
> > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6)
> > reproduce (this is a W=1 build):
^ W=1 build
> > vim +/bpf_cookie +695 include/linux/trace_events.h
> >
> > 693
> > 694 static inline int
> > > 695 perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog, u64 bpf_cookie)
>
> This is expected for such stub implementations. Is there any way to
> silence this or make the compiler happy about that?
Leaving the name off unused parameters: https://godbolt.org/z/eaaen8ToP
>
> > 696 {
> > 697 return -EOPNOTSUPP;
> > 698 }
> > 699
> >
> > ---
> > 0-DAY CI Kernel Test Service, Intel Corporation
> > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>
> --
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> To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/CAEf4BzaLJqYxRWZJbVMr%2Boa%2B_7Y7mgfxtUg3KuvbqMo%3DfT4-7Q%40mail.gmail.com.
--
Thanks,
~Nick Desaulniers
prev parent reply other threads:[~2021-08-18 0:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 22:35 kernel test robot
2021-08-18 0:25 ` Andrii Nakryiko
2021-08-18 0:37 ` Nick Desaulniers [this message]
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