Re: [linux-next:master 6632/9522] include/linux/pm_opp.h:458:58: warning: unused parameter 'dev'

From: Viresh Kumar <viresh.kumar@linaro.org>
To: kernel test robot <lkp@intel.com>
Cc: 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 08:45:46 +0530	[thread overview]
Message-ID: <20210823031546.fupzmdxjntacsq2e@vireshk-i7> (raw)
In-Reply-To: <202108210311.CBtcgoUL-lkp@intel.com>

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.

-- 
viresh