Extern or forward variable declaration at include/sound/soc.h, line 385 References: drivers/staging/greybus/audio_codec.c, line 691 include/sound/simple_card_utils.h, line 37 include/sound/soc.h, line 385 sound/soc/fsl/imx-hdmi.c, line 27 sound/soc/intel/boards/bdw-rt5650.c, line 73 sound/soc/intel/boards/bdw-rt5650.c, line 78 sound/soc/intel/boards/bdw-rt5677.c, line 93 sound/soc/intel/boards/bdw-rt5677.c, line 98 sound/soc/intel/boards/broadwell.c, line 21 sound/soc/intel/boards/bxt_rt298.c, line 48 sound/soc/intel/boards/bytcht_cx2072x.c, line 53 sound/soc/intel/boards/bytcht_es8316.c, line 146 sound/soc/intel/boards/bytcr_rt5640.c, line 375 sound/soc/intel/boards/bytcr_rt5651.c, line 336 sound/soc/intel/boards/bytcr_wm5102.c, line 182 sound/soc/intel/boards/cht_bsw_max98090_ti.c, line 152 sound/soc/intel/boards/cht_bsw_nau8824.c, line 30 sound/soc/intel/boards/cht_bsw_rt5645.c, line 196 sound/soc/intel/boards/cht_bsw_rt5672.c, line 39 sound/soc/intel/boards/kbl_rt5660.c, line 70 sound/soc/intel/boards/kbl_rt5660.c, line 75 sound/soc/intel/boards/skl_rt286.c, line 48 sound/soc/intel/boards/sof_sdw_rt5682.c, line 37 sound/soc/intel/boards/sof_sdw_rt700.c, line 37 sound/soc/intel/boards/sof_sdw_rt711.c, line 61 sound/soc/intel/boards/sof_sdw_rt711_sdca.c, line 61 sound/soc/mediatek/mt8173/mt8173-max98090.c, line 17 sound/soc/pxa/hx4700.c, line 28 sound/soc/pxa/palm27x.c, line 29 sound/soc/pxa/ttc-dkb.c, line 19 sound/soc/pxa/ttc-dkb.c, line 23 sound/soc/pxa/z2.c, line 74 sound/soc/rockchip/rk3288_hdmi_analog.c, line 48 sound/soc/rockchip/rk3399_gru_sound.c, line 36 sound/soc/rockchip/rockchip_max98090.c, line 28 sound/soc/samsung/aries_wm8994.c, line 40 sound/soc/samsung/aries_wm8994.c, line 66 sound/soc/samsung/h1940_uda1380.c, line 35 sound/soc/samsung/lowland.c, line 22 sound/soc/samsung/rx1950_uda1380.c, line 44 sound/soc/samsung/smartq_wm8987.c, line 79 sound/soc/samsung/speyside.c, line 101 sound/soc/samsung/tobermory.c, line 165 sound/soc/soc-card.c, line 62 sound/soc/soc-jack.c, line 43 sound/soc/soc-jack.c, line 145 sound/soc/tegra/tegra_asoc_machine.c, line 27 sound/soc/tegra/tegra_asoc_machine.c, line 42 sound/soc/tegra/tegra_asoc_machine.c, line 57 sound/soc/tegra/tegra_wm8903.c, line 30 sound/soc/ti/ams-delta.c, line 227 sound/soc/ti/omap-abe-twl6040.c, line 107 sound/soc/ti/omap-twl4030.c, line 119