linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Arnd Bergmann <arnd@kernel.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: kernel test robot <lkp@intel.com>,
	clang-built-linux <clang-built-linux@googlegroups.com>,
	 kbuild-all@lists.01.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	 Quentin Perret <qperret@google.com>,
	Lukasz Luba <lukasz.luba@arm.com>
Subject: Re: [linux-next:master 6632/9522] include/linux/pm_opp.h:458:58: warning: unused parameter 'dev'
Date: Mon, 23 Aug 2021 11:07:13 +0200	[thread overview]
Message-ID: <CAK8P3a1o6uvDo_ttPFOw_pRdtok3-9=dFMLToyUxSmTxs0YfOg@mail.gmail.com> (raw)
In-Reply-To: <20210823031546.fupzmdxjntacsq2e@vireshk-i7>

On Mon, Aug 23, 2021 at 5:15 AM Viresh Kumar <viresh.kumar@linaro.org> wrote:
>
> On 21-08-21, 03:30, kernel test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > head:   86ed57fd8c93fdfaabb4f58e78455180fa7d8a84
> > commit: c17495b01b72b53bd290f442d39b060e015c7aea [6632/9522] cpufreq: Add callback to register with energy model
> > config: i386-randconfig-a016-20210820 (attached as .config)
> > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d9c5613e856cf2addfbf892fc4c1ce9ef9feceaa)
> > 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c17495b01b72b53bd290f442d39b060e015c7aea
> >         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> >         git fetch --no-tags linux-next master
> >         git checkout c17495b01b72b53bd290f442d39b060e015c7aea
> >         # save the attached .config to linux build tree
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@intel.com>
> >
> > All warnings (new ones prefixed by >>):
> >
> >    static inline void pm_vt_switch_unregister(struct device *dev)
> >                                                              ^
> >    In file included from drivers/gpu/drm/i915/gt/intel_llc.c:6:
> >    In file included from include/linux/cpufreq.h:12:
> >    In file included from include/linux/cpu.h:17:
> >    In file included from include/linux/node.h:18:
> >    include/linux/device.h:653:46: warning: unused parameter 'dev' [-Wunused-parameter]
> >    static inline int dev_to_node(struct device *dev)
>
> False positives ? These are mostly inline dummies, which simply return
> errors. Their parameters aren't supposed to be used.

It's a clang-14 W=1 build, probably something went wrong with the clang specific
warning flags there. I think we do want "-Wunused -Wno-unused-parameter". Not
sure what changed compared to older clang builds.

        Arnd


  reply	other threads:[~2021-08-23  9:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20 19:30 [linux-next:master 6632/9522] include/linux/pm_opp.h:458:58: warning: unused parameter 'dev' kernel test robot
2021-08-23  3:15 ` Viresh Kumar
2021-08-23  9:07   ` Arnd Bergmann [this message]
2021-08-23 20:28     ` Nathan Chancellor

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAK8P3a1o6uvDo_ttPFOw_pRdtok3-9=dFMLToyUxSmTxs0YfOg@mail.gmail.com' \
    --to=arnd@kernel.org \
    --cc=clang-built-linux@googlegroups.com \
    --cc=kbuild-all@lists.01.org \
    --cc=linux-mm@kvack.org \
    --cc=lkp@intel.com \
    --cc=lukasz.luba@arm.com \
    --cc=qperret@google.com \
    --cc=viresh.kumar@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).