Hi Mengdong, [auto build test WARNING on asoc/for-next] [also build test WARNING on v4.9-rc6 next-20161124] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/mengdong-lin-linux-intel-com/ASoC-topology-Allow-a-widget-to-have-multiple-enum-controls/20161125-164058 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next config: i386-randconfig-x011-201647 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): sound/soc/soc-topology.c: In function 'soc_tplg_dapm_widget_create': >> sound/soc/soc-topology.c:1566:36: warning: 'kcontrol_type' may be used uninitialized in this function [-Wmaybe-uninitialized] widget->dobj.widget.kcontrol_type = kcontrol_type; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ vim +/kcontrol_type +1566 sound/soc/soc-topology.c 1550 goto hdr_err; 1551 1552 /* card dapm mutex is held by the core if we are loading topology 1553 * data during sound card init. */ 1554 if (card->instantiated) 1555 widget = snd_soc_dapm_new_control(dapm, &template); 1556 else 1557 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1558 if (widget == NULL) { 1559 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1560 w->name); 1561 ret = -ENOMEM; 1562 goto hdr_err; 1563 } 1564 1565 widget->dobj.type = SND_SOC_DOBJ_WIDGET; > 1566 widget->dobj.widget.kcontrol_type = kcontrol_type; 1567 widget->dobj.ops = tplg->ops; 1568 widget->dobj.index = tplg->index; 1569 kfree(template.sname); 1570 kfree(template.name); 1571 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1572 return 0; 1573 1574 hdr_err: --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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