mmc: make mmc_dev_to_card() macro public

Conversion from struct device to struct mmc_card is used more than in one
place.  Due to this it's better to have public macro for such thing.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

2 files changed, 1 insertions, 2 deletions

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 7cd9749dc21d..27326c411735 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -22,7 +22,6 @@
 #include "sdio_cis.h"
 #include "bus.h"
 
-#define dev_to_mmc_card(d)      container_of(d, struct mmc_card, dev)
 #define to_mmc_driver(d)        container_of(d, struct mmc_driver, drv)
 
 static ssize_t mmc_type_show(struct device *dev,
diff --git a/drivers/mmc/core/bus.h b/drivers/mmc/core/bus.h
index 18178766ab46..7813954e3199 100644
--- a/drivers/mmc/core/bus.h
+++ b/drivers/mmc/core/bus.h
@@ -14,7 +14,7 @@
 #define MMC_DEV_ATTR(name, fmt, args...)                                        \
 static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
 {                                                                               \
-        struct mmc_card *card = container_of(dev, struct mmc_card, dev);        \
+        struct mmc_card *card = dev_to_mmc_card(dev);                           \
         return sprintf(buf, fmt, args);                                         \
 }                                                                               \
 static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)