Extern or forward variable declaration include/sound/hdaudio.h, line 24 [usage...] Structure include/sound/hdaudio.h, line 500 [usage...] Local variable sound/hda/hdac_controller.c, line 570 [usage...] Macro (un)definition include/sound/hdaudio_ext.h, line 76 [usage...] Function prototype or declaration sound/soc/intel/skylake/skl-pcm.c, line 146 [usage...] sound/soc/intel/skylake/skl-pcm.c, line 395 [usage...] sound/soc/intel/skylake/skl-pcm.c, line 450 [usage...] sound/soc/intel/skylake/skl-pcm.c, line 453 [usage...] sound/soc/intel/skylake/skl-pcm.c, line 1138 [usage...] sound/soc/intel/skylake/skl-pcm.c, line 1140 [usage...]