mmc: core: Export mmc_get_ext_csd()

Callers of mmc_send_ext_csd() will be able to decrease code duplication
by using mmc_get_ext_csd() instead. Let's make it available.

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

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index efaa9f8f07b08159973ec159e289c7f76764150c..02ad79229f65ecf0b50b9bf29a1f63c0d297910e 100644 (file)
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -177,37 +177,6 @@ static int mmc_decode_csd(struct mmc_card *card)
        return 0;
 }
 
-/*
- * Read extended CSD.
- */
-static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
-{
-       int err;
-       u8 *ext_csd;
-
-       if (!card || !new_ext_csd)
-               return -EINVAL;
-
-       if (!mmc_can_ext_csd(card))
-               return -EOPNOTSUPP;
-
-       /*
-        * As the ext_csd is so large and mostly unused, we don't store the
-        * raw block in mmc_card.
-        */
-       ext_csd = kmalloc(512, GFP_KERNEL);
-       if (!ext_csd)
-               return -ENOMEM;
-
-       err = mmc_send_ext_csd(card, ext_csd);
-       if (err)
-               kfree(ext_csd);
-       else
-               *new_ext_csd = ext_csd;
-
-       return err;
-}
-
 static void mmc_select_card_type(struct mmc_card *card)
 {
        struct mmc_host *host = card->host;

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 1db60be43c37778ad7f9c3a583612528982d846b..72e1f9b3ed0da3e3a435a7af374eaca53a933276 100644 (file)
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -385,6 +385,35 @@ int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)
 }
 EXPORT_SYMBOL_GPL(mmc_send_ext_csd);
 
+int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
+{
+       int err;
+       u8 *ext_csd;
+
+       if (!card || !new_ext_csd)
+               return -EINVAL;
+
+       if (!mmc_can_ext_csd(card))
+               return -EOPNOTSUPP;
+
+       /*
+        * As the ext_csd is so large and mostly unused, we don't store the
+        * raw block in mmc_card.
+        */
+       ext_csd = kmalloc(512, GFP_KERNEL);
+       if (!ext_csd)
+               return -ENOMEM;
+
+       err = mmc_send_ext_csd(card, ext_csd);
+       if (err)
+               kfree(ext_csd);
+       else
+               *new_ext_csd = ext_csd;
+
+       return err;
+}
+EXPORT_SYMBOL_GPL(mmc_get_ext_csd);
+
 int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp)
 {
        struct mmc_command cmd = {0};

diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index f206e29f94d72cb74afbcf10bd14111676424c80..0a77d3567c27fd26cfcc500cfd48653f2338bf62 100644 (file)
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -155,6 +155,7 @@ 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_ext_csd(struct mmc_card *card, u8 *ext_csd);
+extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
 
 #define MMC_ERASE_ARG          0x00000000
 #define MMC_SECURE_ERASE_ARG   0x80000000