[kbuild-all] [broonie-sound:for-5.16 27/45] sound/soc/codecs/cs35l41.c:582:14: warning: variable 'pdn' set but not used

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/... 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(a)intel.com&gt; All warnings (new ones prefixed by >>): sound/soc/codecs/cs35l41.c: In function 'cs35l41_main_amp_event': 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(a)opensource.cirrus.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org