linux-kernel - [agd5f:drm-next 395/460] drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c:864:13: warning: variable 'r' set but not used

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Date:   Thu, 5 May 2022 03:39:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jack Xiao <Jack.Xiao@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>,
        Hawking Zhang <Hawking.Zhang@....com>
Subject: [agd5f:drm-next 395/460]
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c:864:13: warning: variable 'r' set
 but not used

tree:   https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head:   d6ffefccf7f04eefddc8e8aa35fb4afe05a42e0c
commit: e3652b0976f383dea912607a404e974632b019b1 [395/460] drm/amdgpu/mes: add helper functions to alloc/free ctx metadata
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20220505/202205050315.yMErlGvA-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 11.3.0
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
        git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
        git fetch --no-tags agd5f drm-next
        git checkout e3652b0976f383dea912607a404e974632b019b1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash drivers/gpu/drm/amd/amdgpu/

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/amd/amdgpu/amdgpu_mes.c: In function 'amdgpu_mes_ctx_alloc_meta_data':
>> drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c:864:13: warning: variable 'r' set but not used [-Wunused-but-set-variable]
     864 |         int r;
         |             ^


vim +/r +864 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c

   860	
   861	int amdgpu_mes_ctx_alloc_meta_data(struct amdgpu_device *adev,
   862					   struct amdgpu_mes_ctx_data *ctx_data)
   863	{
 > 864		int r;
   865	
   866		r = amdgpu_bo_create_kernel(adev,
   867				    sizeof(struct amdgpu_mes_ctx_meta_data),
   868				    PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
   869				    &ctx_data->meta_data_obj, NULL,
   870				    &ctx_data->meta_data_ptr);
   871		if (!ctx_data->meta_data_obj)
   872			return -ENOMEM;
   873	
   874		memset(ctx_data->meta_data_ptr, 0,
   875		       sizeof(struct amdgpu_mes_ctx_meta_data));
   876	
   877		return 0;
   878	}
   879	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp