linux-kernel - [PATCH 2/2] mtd: concat: implement _is

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Message-Id: <20190522000753.13300-2-chris.packham@alliedtelesis.co.nz>
Date:   Wed, 22 May 2019 12:07:53 +1200
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     dwmw2@...radead.org, computersforpeace@...il.com,
        marek.vasut@...il.com, miquel.raynal@...tlin.com, richard@....at,
        vigneshr@...com
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH 2/2] mtd: concat: implement _is_locked mtd operation

Add an implementation of the _is_locked operation for concatenated mtd
devices. As with concat_lock/concat_unlock this can simply use the
common helper and pass mtd_is_locked as the operation.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
 drivers/mtd/mtdconcat.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 9514cd2db63c..0e919f3423af 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -496,6 +496,11 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	return __concat_xxlock(mtd, ofs, len, mtd_unlock);
 }
 
+static int concat_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+	return __concat_xxlock(mtd, ofs, len, mtd_is_locked);
+}
+
 static void concat_sync(struct mtd_info *mtd)
 {
 	struct mtd_concat *concat = CONCAT(mtd);
@@ -695,6 +700,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
 	concat->mtd._sync = concat_sync;
 	concat->mtd._lock = concat_lock;
 	concat->mtd._unlock = concat_unlock;
+	concat->mtd._is_locked = concat_is_locked;
 	concat->mtd._suspend = concat_suspend;
 	concat->mtd._resume = concat_resume;
 
-- 
2.21.0