mtd: introduce mtd_read_oob interface

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 2fb83cd3d264..0db8d87ce451 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -188,6 +188,8 @@ struct mtd_info {
                       size_t *retlen, const u_char *buf);
         int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len,
                             size_t *retlen, const u_char *buf);
+        int (*read_oob) (struct mtd_info *mtd, loff_t from,
+                         struct mtd_oob_ops *ops);
 
         /* Backing device capabilities for this device
          * - provides mmap capabilities
@@ -195,8 +197,6 @@ struct mtd_info {
         struct backing_dev_info *backing_dev_info;
 
 
-        int (*read_oob) (struct mtd_info *mtd, loff_t from,
-                         struct mtd_oob_ops *ops);
         int (*write_oob) (struct mtd_info *mtd, loff_t to,
                          struct mtd_oob_ops *ops);
 
@@ -320,6 +320,12 @@ static inline int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
         return mtd->panic_write(mtd, to, len, retlen, buf);
 }
 
+static inline int mtd_read_oob(struct mtd_info *mtd, loff_t from,
+                               struct mtd_oob_ops *ops)
+{
+        return mtd->read_oob(mtd, from, ops);
+}
+
 static inline struct mtd_info *dev_to_mtd(struct device *dev)
 {
         return dev ? dev_get_drvdata(dev) : NULL;