mmc: core: Convert __mmc_switch() into an internal core function

As there are no users of the __mmc_switch() API, except for the mmc core
itself, let's convert it from an exported function into an internal.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/mmc_ops.c

@@ -579,7 +579,6 @@ out:
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(__mmc_switch);
 
 int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 		unsigned int timeout_ms)

drivers/mmc/core/mmc_ops.h

@@ -28,6 +28,9 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width);
 int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status);
 int mmc_can_ext_csd(struct mmc_card *card);
 int mmc_switch_status_error(struct mmc_host *host, u32 status);
+int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
+		unsigned int timeout_ms, bool use_busy_signal, bool send_status,
+		bool ignore_crc);
 
 #endif
 

include/linux/mmc/core.h

@@ -152,8 +152,6 @@ extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *);
 extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
 	struct mmc_command *, int);
 extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
-extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
-			bool, bool);
 extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
 extern int mmc_send_tuning(struct mmc_host *host);
 extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);