linux-kernel - drivers/gpu/drm/msm/adreno/a6xx_gpu.c:1643:6: error: no previous prototype for 'a6xx_gpu_set

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Date:   Fri, 12 Nov 2021 15:27:25 +0800
From:   kernel test robot <lkp@...el.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Dave Airlie <airlied@...hat.com>
Subject: drivers/gpu/drm/msm/adreno/a6xx_gpu.c:1643:6: error: no previous
 prototype for 'a6xx_gpu_set_freq'

Hi Dave,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5833291ab6de9c3e2374336b51c814e515e8f3a5
commit: 970eae15600a883e4ad27dd0757b18871cc983ab BackMerge tag 'v5.15-rc7' into drm-next
date:   2 weeks ago
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 11.2.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=970eae15600a883e4ad27dd0757b18871cc983ab
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 970eae15600a883e4ad27dd0757b18871cc983ab
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arc 

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

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/msm/adreno/a6xx_gpu.c:1643:6: error: no previous prototype for 'a6xx_gpu_set_freq' [-Werror=missing-prototypes]
    1643 | void a6xx_gpu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp)
         |      ^~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/a6xx_gpu_set_freq +1643 drivers/gpu/drm/msm/adreno/a6xx_gpu.c

a2c3c0a54d4ccc Sharat Masetty 2018-10-04  1642  
f6f59072e82190 Rob Clark      2021-09-27 @1643  void a6xx_gpu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp)
f6f59072e82190 Rob Clark      2021-09-27  1644  {
f6f59072e82190 Rob Clark      2021-09-27  1645  	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
f6f59072e82190 Rob Clark      2021-09-27  1646  	struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
f6f59072e82190 Rob Clark      2021-09-27  1647  
f6f59072e82190 Rob Clark      2021-09-27  1648  	mutex_lock(&a6xx_gpu->gmu.lock);
f6f59072e82190 Rob Clark      2021-09-27  1649  	a6xx_gmu_set_freq(gpu, opp);
f6f59072e82190 Rob Clark      2021-09-27  1650  	mutex_unlock(&a6xx_gpu->gmu.lock);
f6f59072e82190 Rob Clark      2021-09-27  1651  }
f6f59072e82190 Rob Clark      2021-09-27  1652  

:::::: The code at line 1643 was first introduced by commit
:::::: f6f59072e821901d96c791864a07d57d8ec8d312 drm/msm/a6xx: Serialize GMU communication

:::::: TO: Rob Clark <robdclark@...omium.org>
:::::: CC: Rob Clark <robdclark@...omium.org>

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

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