diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 935314c54851..3aa636aba66f 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -898,7 +898,6 @@ void linux_to_wlan(wilc_wlan_inp_t *nwi, struct wilc *nic)
 	nwi->io_func.io_type = HIF_SPI;
 	nwi->io_func.io_init = linux_spi_init;
 	nwi->io_func.io_deinit = linux_spi_deinit;
-	nwi->io_func.u.spi.spi_max_speed = linux_spi_set_max_speed;
 #endif
 }
 
diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h
index be73b02e107f..0f15795c95ec 100644
--- a/drivers/staging/wilc1000/wilc_wlan_if.h
+++ b/drivers/staging/wilc1000/wilc_wlan_if.h
@@ -76,11 +76,6 @@ typedef struct {
 	int io_type;
 	int (*io_init)(void *);
 	void (*io_deinit)(void *);
-	union {
-		struct {
-			int (*spi_max_speed)(void);
-		} spi;
-	} u;
 } wilc_wlan_io_func_t;
 
 #define WILC_MAC_INDICATE_STATUS	0x1