mtd: introduce mtd_write_user_prot_reg interface

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

3 files changed, 12 insertions, 4 deletions

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 6aa3fb4a0292..d8881707ca60 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -314,7 +314,8 @@ static ssize_t mtdchar_write(struct file *file, const char __user *buf, size_t c
                                 ret = -EOPNOTSUPP;
                                 break;
                         }
-                        ret = mtd->write_user_prot_reg(mtd, *ppos, len, &retlen, kbuf);
+                        ret = mtd_write_user_prot_reg(mtd, *ppos, len,
+                                                      &retlen, kbuf);
                         break;
 
                 case MTD_FILE_MODE_RAW:
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index f018373ef3b4..1e7b8d1693aa 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -222,8 +222,7 @@ static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
                 size_t len, size_t *retlen, u_char *buf)
 {
         struct mtd_part *part = PART(mtd);
-        return part->master->write_user_prot_reg(part->master, from,
-                                        len, retlen, buf);
+        return mtd_write_user_prot_reg(part->master, from, len, retlen, buf);
 }
 
 static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 855fb7fab697..554960793e37 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -200,13 +200,14 @@ struct mtd_info {
                                    size_t len);
         int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
                                    size_t len, size_t *retlen, u_char *buf);
+        int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t to, size_t len,
+                                    size_t *retlen, u_char *buf);
 
         /* Backing device capabilities for this device
          * - provides mmap capabilities
          */
         struct backing_dev_info *backing_dev_info;
 
-        int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
         int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
 
         /* kvec-based read/write methods.
@@ -361,6 +362,13 @@ static inline int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
         return mtd->read_user_prot_reg(mtd, from, len, retlen, buf);
 }
 
+static inline int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to,
+                                          size_t len, size_t *retlen,
+                                          u_char *buf)
+{
+        return mtd->write_user_prot_reg(mtd, to, len, retlen, buf);
+}
+
 static inline struct mtd_info *dev_to_mtd(struct device *dev)
 {
         return dev ? dev_get_drvdata(dev) : NULL;