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* [broonie-sound:for-5.16 27/45] sound/soc/codecs/cs35l41.c:582:14: warning: variable 'pdn' set but not used
@ 2021-09-16  3:34 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-09-16  3:34 UTC (permalink / raw)
  To: Charles Keepax; +Cc: kbuild-all, linux-kernel, Mark Brown

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.16
head:   bde4f08cff47632f0a52e15a613365e26608d003
commit: c2f14cc2bcdd532f8a18450407ffc27bbbff2319 [27/45] ASoC: cs35l41: Fix use of an uninitialised variable
config: xtensa-randconfig-r021-20210916 (attached as .config)
compiler: xtensa-linux-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/broonie/sound.git/commit/?id=c2f14cc2bcdd532f8a18450407ffc27bbbff2319
        git remote add broonie-sound https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
        git fetch --no-tags broonie-sound for-5.16
        git checkout c2f14cc2bcdd532f8a18450407ffc27bbbff2319
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=xtensa 

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 >>):

   sound/soc/codecs/cs35l41.c: In function 'cs35l41_main_amp_event':
>> sound/soc/codecs/cs35l41.c:582:14: warning: variable 'pdn' set but not used [-Wunused-but-set-variable]
     582 |         bool pdn;
         |              ^~~


vim +/pdn +582 sound/soc/codecs/cs35l41.c

6450ef55905688 David Rhodes   2021-09-07  572  
6450ef55905688 David Rhodes   2021-09-07  573  static int cs35l41_main_amp_event(struct snd_soc_dapm_widget *w,
6450ef55905688 David Rhodes   2021-09-07  574  		struct snd_kcontrol *kcontrol, int event)
6450ef55905688 David Rhodes   2021-09-07  575  {
6450ef55905688 David Rhodes   2021-09-07  576  	struct snd_soc_component *component =
6450ef55905688 David Rhodes   2021-09-07  577  		snd_soc_dapm_to_component(w->dapm);
6450ef55905688 David Rhodes   2021-09-07  578  	struct cs35l41_private *cs35l41 =
6450ef55905688 David Rhodes   2021-09-07  579  		snd_soc_component_get_drvdata(component);
6450ef55905688 David Rhodes   2021-09-07  580  	unsigned int val;
6450ef55905688 David Rhodes   2021-09-07  581  	int ret = 0;
6450ef55905688 David Rhodes   2021-09-07 @582  	bool pdn;
6450ef55905688 David Rhodes   2021-09-07  583  
6450ef55905688 David Rhodes   2021-09-07  584  	switch (event) {
6450ef55905688 David Rhodes   2021-09-07  585  	case SND_SOC_DAPM_POST_PMU:
6450ef55905688 David Rhodes   2021-09-07  586  		regmap_multi_reg_write_bypassed(cs35l41->regmap,
6450ef55905688 David Rhodes   2021-09-07  587  					cs35l41_pup_patch,
6450ef55905688 David Rhodes   2021-09-07  588  					ARRAY_SIZE(cs35l41_pup_patch));
6450ef55905688 David Rhodes   2021-09-07  589  
6450ef55905688 David Rhodes   2021-09-07  590  		regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL1,
6450ef55905688 David Rhodes   2021-09-07  591  				CS35L41_GLOBAL_EN_MASK,
6450ef55905688 David Rhodes   2021-09-07  592  				1 << CS35L41_GLOBAL_EN_SHIFT);
6450ef55905688 David Rhodes   2021-09-07  593  
6450ef55905688 David Rhodes   2021-09-07  594  		usleep_range(1000, 1100);
6450ef55905688 David Rhodes   2021-09-07  595  		break;
6450ef55905688 David Rhodes   2021-09-07  596  	case SND_SOC_DAPM_POST_PMD:
6450ef55905688 David Rhodes   2021-09-07  597  		regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL1,
6450ef55905688 David Rhodes   2021-09-07  598  				CS35L41_GLOBAL_EN_MASK, 0);
6450ef55905688 David Rhodes   2021-09-07  599  
6450ef55905688 David Rhodes   2021-09-07  600  		pdn = false;
c2f14cc2bcdd53 Charles Keepax 2021-09-14  601  		ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS1,
c2f14cc2bcdd53 Charles Keepax 2021-09-14  602  					       val, val &  CS35L41_PDN_DONE_MASK,
c2f14cc2bcdd53 Charles Keepax 2021-09-14  603  					       1000, 100000);
c2f14cc2bcdd53 Charles Keepax 2021-09-14  604  		if (ret)
c2f14cc2bcdd53 Charles Keepax 2021-09-14  605  			dev_warn(cs35l41->dev, "PDN failed: %d\n", ret);
6450ef55905688 David Rhodes   2021-09-07  606  
6450ef55905688 David Rhodes   2021-09-07  607  		regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1,
6450ef55905688 David Rhodes   2021-09-07  608  				CS35L41_PDN_DONE_MASK);
6450ef55905688 David Rhodes   2021-09-07  609  
6450ef55905688 David Rhodes   2021-09-07  610  		regmap_multi_reg_write_bypassed(cs35l41->regmap,
6450ef55905688 David Rhodes   2021-09-07  611  					cs35l41_pdn_patch,
6450ef55905688 David Rhodes   2021-09-07  612  					ARRAY_SIZE(cs35l41_pdn_patch));
6450ef55905688 David Rhodes   2021-09-07  613  		break;
6450ef55905688 David Rhodes   2021-09-07  614  	default:
6450ef55905688 David Rhodes   2021-09-07  615  		dev_err(cs35l41->dev, "Invalid event = 0x%x\n", event);
6450ef55905688 David Rhodes   2021-09-07  616  		ret = -EINVAL;
6450ef55905688 David Rhodes   2021-09-07  617  	}
6450ef55905688 David Rhodes   2021-09-07  618  	return ret;
6450ef55905688 David Rhodes   2021-09-07  619  }
6450ef55905688 David Rhodes   2021-09-07  620  

:::::: The code at line 582 was first introduced by commit
:::::: 6450ef55905688602175fae4ed1bfbfef6a14dde ASoC: cs35l41: CS35L41 Boosted Smart Amplifier

:::::: TO: David Rhodes <drhodes@opensource.cirrus.com>
:::::: CC: Mark Brown <broonie@kernel.org>

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

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