--- zzzz-none-000/linux-3.10.107/include/linux/mmc/sdio_func.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/linux/mmc/sdio_func.h	2021-02-04 17:41:59.000000000 +0000
@@ -84,8 +84,6 @@
 	struct device_driver drv;
 };
 
-#define to_sdio_driver(d)	container_of(d, struct sdio_driver, drv)
-
 /**
  * SDIO_DEVICE - macro used to describe a specific SDIO device
  * @vend: the 16 bit manufacturer code