Extern or forward variable declaration at include/sound/core.h, line 28 References: drivers/media/pci/cx18/cx18-alsa-main.c, line 132 drivers/media/pci/cx25821/cx25821-alsa.c, line 65 drivers/media/pci/saa7134/saa7134.h, line 570 drivers/media/pci/saa7134/saa7134.h, line 755 drivers/media/pci/saa7134/saa7134.h, line 756 drivers/media/pci/saa7134/saa7134.h, line 759 sound/core/misc.c, line 138 sound/hda/hdac_i915.c, line 36 sound/hda/hdac_i915.c, line 75 sound/hda/hdac_i915.c, line 75 sound/hda/hdac_i915.c, line 102 sound/hda/intel-dsp-config.c, line 347 sound/hda/intel-dsp-config.c, line 362 sound/hda/intel-dsp-config.c, line 377 sound/hda/intel-dsp-config.c, line 392 sound/hda/intel-dsp-config.c, line 398 sound/pci/ad1889.c, line 75 sound/pci/ad1889.c, line 793 sound/pci/ad1889.c, line 847 sound/pci/ctxfi/cthardware.h, line 183 sound/pci/ctxfi/cthardware.h, line 193 sound/pci/maestro3.c, line 732 sound/pci/maestro3.c, line 2268 sound/pci/maestro3.c, line 2493 sound/pci/maestro3.c, line 2640 sound/pci/nm256/nm256.c, line 231 sound/pci/nm256/nm256.c, line 1450 sound/pci/nm256/nm256.c, line 1596 sound/pci/oxygen/oxygen_lib.c, line 301 sound/pci/oxygen/oxygen_lib.c, line 311 sound/pci/oxygen/oxygen_lib.c, line 579 sound/pci/oxygen/oxygen_lib.c, line 786 sound/pci/via82xx.c, line 363 sound/pci/via82xx.c, line 411 sound/pci/via82xx.c, line 486 sound/pci/via82xx.c, line 2216 sound/pci/via82xx.c, line 2317 sound/pci/via82xx.c, line 2436 sound/pci/via82xx.c, line 2461 sound/soc/intel/skylake/skl-nhlt.c, line 155 sound/soc/intel/skylake/skl.c, line 45 sound/soc/intel/skylake/skl.c, line 71 sound/soc/intel/skylake/skl.c, line 90 sound/soc/intel/skylake/skl.c, line 106 sound/soc/intel/skylake/skl.c, line 149 sound/soc/intel/skylake/skl.c, line 282 sound/soc/intel/skylake/skl.c, line 293 sound/soc/intel/skylake/skl.c, line 331 sound/soc/intel/skylake/skl.c, line 361 sound/soc/intel/skylake/skl.c, line 408 sound/soc/intel/skylake/skl.c, line 418 sound/soc/intel/skylake/skl.c, line 859 sound/soc/intel/skylake/skl.c, line 908 sound/soc/intel/skylake/skl.c, line 970 sound/soc/intel/skylake/skl.c, line 1084 sound/soc/intel/skylake/skl.c, line 1108 sound/soc/intel/skylake/skl.h, line 61 sound/soc/sof/intel/hda-dsp.c, line 724 sound/soc/sof/intel/hda-dsp.c, line 835 sound/soc/sof/intel/hda-loader.c, line 35 sound/soc/sof/ops.c, line 18 sound/soc/sof/sof-pci-dev.c, line 122 sound/soc/sof/sof-pci-dev.c, line 205 sound/soc/sof/sof-pci-dev.c, line 220