mmc: core: Convert mmc_wait_for_app_cmd() to static

mmc_wait_for_app_cmd() is an internal function for sd_ops.c, thus let's
drop the unnecessary export and turn it into static function.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/sd_ops.c

@@ -52,20 +52,7 @@ int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)
 }
 EXPORT_SYMBOL_GPL(mmc_app_cmd);
 
-/**
- *	mmc_wait_for_app_cmd - start an application command and wait for
- 			       completion
- *	@host: MMC host to start command
- *	@card: Card to send MMC_APP_CMD to
- *	@cmd: MMC command to start
- *	@retries: maximum number of retries
- *
- *	Sends a MMC_APP_CMD, checks the card response, sends the command
- *	in the parameter and waits for it to complete. Return any error
- *	that occurred while the command was executing.  Do not attempt to
- *	parse the response.
- */
-int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
+static int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
 	struct mmc_command *cmd, int retries)
 {
 	struct mmc_request mrq = {};
@@ -116,8 +103,6 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
 	return err;
 }
 
-EXPORT_SYMBOL(mmc_wait_for_app_cmd);
-
 int mmc_app_set_bus_width(struct mmc_card *card, int width)
 {
 	struct mmc_command cmd = {};

drivers/mmc/core/sd_ops.h

@@ -16,7 +16,6 @@
 
 struct mmc_card;
 struct mmc_host;
-struct mmc_command;
 
 int mmc_app_set_bus_width(struct mmc_card *card, int width);
 int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
@@ -27,8 +26,6 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group,
 	u8 value, u8 *resp);
 int mmc_app_sd_status(struct mmc_card *card, void *ssr);
 int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card);
-int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
-	struct mmc_command *cmd, int retries);
 
 #endif