[PATCH 2/9] mtd: add mtd_is_master helper

[Marco Felsch]

Provide a simple helper to make it easy to detect an master mtd device.

Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>
---
 include/linux/mtd/mtd.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 8d10d9d2e830..bf3fc2ea7230 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -408,6 +408,11 @@ static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd)
 	return mtd;
 }
 
+static inline bool mtd_is_master(struct mtd_info *mtd)
+{
+	return mtd->parent ? false : true;
+}
+
 static inline u64 mtd_get_master_ofs(struct mtd_info *mtd, u64 ofs)
 {
 	while (mtd->parent) {

-- 
2.39.2