Hi Ma, kernel test robot noticed the following build errors: [auto build test ERROR on tiwai-sound/for-next] [also build test ERROR on tiwai-sound/for-linus linus/master v6.6-rc3 next-20230921] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Ma-Ke/ALSA-control-do-not-access-controls-without-possession-of-r_w-lock/20230912-164832 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next patch link: https://lore.kernel.org/r/20230912084530.3307329-1-make_ruc2021%40163.com patch subject: [PATCH] ALSA: control: do not access controls without possession of r_w lock config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20230925/202309251036.Yjiuc0Lq-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230925/202309251036.Yjiuc0Lq-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309251036.Yjiuc0Lq-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): sound/core/control.c: In function '__snd_ctl_remove': >> sound/core/control.c:593:9: error: 'count' undeclared (first use in this function); did you mean 'd_count'? 593 | count = kcontrol->count; | ^~~~~ | d_count sound/core/control.c:593:9: note: each undeclared identifier is reported only once for each function it appears in vim +593 sound/core/control.c 576 577 static int __snd_ctl_remove(struct snd_card *card, 578 struct snd_kcontrol *kcontrol, 579 bool remove_hash) 580 { 581 unsigned int idx; 582 583 lockdep_assert_held_write(&card->controls_rwsem); 584 585 if (snd_BUG_ON(!card || !kcontrol)) 586 return -EINVAL; 587 list_del(&kcontrol->list); 588 589 if (remove_hash) 590 remove_hash_entries(card, kcontrol); 591 592 card->controls_count -= kcontrol->count; > 593 count = kcontrol->count; 594 for (idx = 0; idx < count; idx++) 595 snd_ctl_notify_one(card, SNDRV_CTL_EVENT_MASK_REMOVE, kcontrol, idx); 596 snd_ctl_free_one(kcontrol); 597 return 0; 598 } 599 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
