--- zzzz-none-000/linux-3.10.107/sound/soc/pxa/pxa2xx-ac97.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/soc/pxa/pxa2xx-ac97.h	2021-02-04 17:41:59.000000000 +0000
@@ -14,7 +14,4 @@
 #define PXA2XX_DAI_AC97_AUX		1
 #define PXA2XX_DAI_AC97_MIC		2
 
-/* platform data */
-extern struct snd_ac97_bus_ops pxa2xx_ac97_ops;
-
 #endif