[PATCH 22/28] mtd: introduce mtd_is_locked interface

Artem Bityutskiy
2011-12-23T18:11:01Z

drivers/mtd/mtdchar.c | 2 +-
drivers/mtd/mtdpart.c | 2 +-
include/linux/mtd/mtd.h | 8 ++++++--
3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 516aee6..46b6a8b 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -852,7 +852,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
if (!mtd->is_locked)
ret = -EOPNOTSUPP;
else
- ret = mtd->is_locked(mtd, einfo.start, einfo.length);
+ ret = mtd_is_locked(mtd, einfo.start, einfo.length);
break;
}

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index d65af37..ad487fc 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -295,7 +295,7 @@ static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
return -EINVAL;
- return part->master->is_locked(part->master, ofs + part->offset, len);
+ return mtd_is_locked(part->master, ofs + part->offset, len);
}

static void part_sync(struct mtd_info *mtd)
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f30c358..8b99019 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -209,14 +209,13 @@ struct mtd_info {
void (*sync) (struct mtd_info *mtd);
int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+ int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);

/* Backing device capabilities for this device
* - provides mmap capabilities
*/
struct backing_dev_info *backing_dev_info;

- int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
-
/* Power Management functions */
int (*suspend) (struct mtd_info *mtd);
void (*resume) (struct mtd_info *mtd);
@@ -394,6 +393,11 @@ static inline int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
return mtd->unlock(mtd, ofs, len);
}

+static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+ return mtd->is_locked(mtd, ofs, len);