Extern or forward variable declaration at include/sound/soc.h, line 346 References: sound/soc/atmel/atmel_wm8904.c, line 82 sound/soc/atmel/atmel_wm8904.c, line 83 sound/soc/atmel/atmel_wm8904.c, line 140 sound/soc/atmel/atmel_wm8904.c, line 166 sound/soc/atmel/sam9x5_wm8731.c, line 80 sound/soc/atmel/sam9x5_wm8731.c, line 81 sound/soc/codecs/ak4104.c, line 267 sound/soc/codecs/cs4270.c, line 660 sound/soc/codecs/tlv320aic32x4.c, line 672 sound/soc/codecs/tlv320aic32x4.c, line 786 sound/soc/codecs/tpa6130a2.c, line 377 sound/soc/fsl/fsl_dma.c, line 851 sound/soc/fsl/fsl_dma.c, line 851 sound/soc/fsl/fsl_dma.c, line 853 sound/soc/fsl/fsl_dma.c, line 885 sound/soc/fsl/fsl_dma.c, line 886 sound/soc/fsl/fsl_utils.c, line 31 sound/soc/fsl/fsl_utils.c, line 38 sound/soc/fsl/imx-sgtl5000.c, line 60 sound/soc/fsl/imx-sgtl5000.c, line 61 sound/soc/fsl/imx-wm8962.c, line 154 sound/soc/fsl/imx-wm8962.c, line 155 sound/soc/fsl/mpc8610_hpcd.c, line 194 sound/soc/fsl/mpc8610_hpcd.c, line 195 sound/soc/fsl/mpc8610_hpcd.c, line 402 sound/soc/fsl/p1022_ds.c, line 204 sound/soc/fsl/p1022_ds.c, line 205 sound/soc/fsl/p1022_ds.c, line 411 sound/soc/fsl/p1022_rdk.c, line 208 sound/soc/fsl/p1022_rdk.c, line 209 sound/soc/fsl/p1022_rdk.c, line 361 sound/soc/pxa/pxa-ssp.c, line 721 sound/soc/samsung/smdk_wm8994.c, line 152 sound/soc/samsung/snow.c, line 68 sound/soc/tegra/tegra_wm8753.c, line 124 sound/soc/tegra/trimslice.c, line 119 sound/soc/ux500/mop500.c, line 72 sound/soc/ux500/mop500.c, line 74 sound/soc/ux500/mop500.c, line 103 sound/soc/ux500/ux500_msp_dai.c, line 745 sound/soc/ux500/ux500_msp_i2s.c, line 682 sound/soc/ux500/ux500_pcm.c, line 141