linux-kernel - Re: [Intel-gfx] [PATCH 1/3] i915/gvt: Introduce the mmio

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Date:   Fri, 28 Jan 2022 01:46:40 +0800
From:   kernel test robot <lkp@...el.com>
To:     Zhi Wang <zhi.wang.linux@...il.com>, hch@....de, jgg@...dia.com,
        jani.nikula@...ux.intel.com
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Zhi Wang <zhi.wang.linux@...il.com>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        Terrence Xu <terrence.xu@...el.com>,
        intel-gvt-dev@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 1/3] i915/gvt: Introduce the mmio_table.c to
 support VFIO new mdev API

Hi Zhi,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[also build test WARNING on next-20220127]
[cannot apply to drm-intel/for-linux-next hch-configfs/for-next v5.17-rc1]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Zhi-Wang/i915-gvt-Introduce-the-mmio_table-c-to-support-VFIO-new-mdev-API/20220127-200727
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220128/202201280121.YX5gboDp-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f32dccb9a43b02ce4e540d6ba5dbbdb188f2dc7d)
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/0day-ci/linux/commit/533f92651a7a56481a053f1e04dc5a5ec024ffb9
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Zhi-Wang/i915-gvt-Introduce-the-mmio_table-c-to-support-VFIO-new-mdev-API/20220127-200727
        git checkout 533f92651a7a56481a053f1e04dc5a5ec024ffb9
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/i915/gvt/handlers.c:45:6: warning: no previous prototype for function 'intel_gvt_match_device' [-Wmissing-prototypes]
   bool intel_gvt_match_device(struct intel_gvt *gvt,
        ^
   drivers/gpu/drm/i915/gvt/handlers.c:45:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool intel_gvt_match_device(struct intel_gvt *gvt,
   ^
   static 
   1 warning generated.


vim +/intel_gvt_match_device +45 drivers/gpu/drm/i915/gvt/handlers.c

12d14cc43b3470 Zhi Wang 2016-08-30  44  
12d14cc43b3470 Zhi Wang 2016-08-30 @45  bool intel_gvt_match_device(struct intel_gvt *gvt,
12d14cc43b3470 Zhi Wang 2016-08-30  46  		unsigned long device)
12d14cc43b3470 Zhi Wang 2016-08-30  47  {
533f92651a7a56 Zhi Wang 2022-01-27  48  	return intel_gvt_get_device_type(gvt->gt->i915) & device;
12d14cc43b3470 Zhi Wang 2016-08-30  49  }
12d14cc43b3470 Zhi Wang 2016-08-30  50  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org