linux-kernel - [agd5f:drm-next 243/250] drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:2277:6: warning: variable 'ret' set but not used

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Message-ID: <202202032303.GcRtJxzw-lkp@intel.com>
Date:   Thu, 3 Feb 2022 23:38:41 +0800
From:   kernel test robot <lkp@...el.com>
To:     Darren Powell <darren.powell@....com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>
Subject: [agd5f:drm-next 243/250]
 drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:2277:6: warning:
 variable 'ret' set but not used

tree:   https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head:   53593d1be00c441585cb4fec41a756b8e586b710
commit: 5d64f9bbb6281a5a89a2266b9d39daa1fca1d6b4 [243/250] amdgpu/pm: Implement new API function "emit" that accepts buffer base and write offset
config: i386-randconfig-a011-20220131 (https://download.01.org/0day-ci/archive/20220203/202202032303.GcRtJxzw-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a73e4ce6a59b01f0e37037761c1e6889d539d233)
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 5d64f9bbb6281a5a89a2266b9d39daa1fca1d6b4
        # 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=i386 SHELL=/bin/bash drivers/gpu/drm/

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/../pm/swsmu/amdgpu_smu.c:2277:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
           int ret = 0;
               ^
   1 warning generated.


vim +/ret +2277 drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c

  2272	
  2273	static int smu_emit_ppclk_levels(void *handle, enum pp_clock_type type, char *buf, int *offset)
  2274	{
  2275		struct smu_context *smu = handle;
  2276		enum smu_clk_type clk_type;
> 2277		int ret = 0;
  2278	
  2279		clk_type = smu_convert_to_smuclk(type);
  2280		if (clk_type == SMU_CLK_COUNT)
  2281			return -EINVAL;
  2282	
  2283		if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
  2284			return -EOPNOTSUPP;
  2285	
  2286		if (!smu->ppt_funcs->emit_clk_levels)
  2287			ret = -ENOENT;
  2288	
  2289		return smu->ppt_funcs->emit_clk_levels(smu, clk_type, buf, offset);
  2290	

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