linux-kernel - [PATCH] libnvdimm, namespace: remove redundant initialization of 'nd

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Message-Id: <20180130174707.4921-1-colin.king@canonical.com>
Date:   Tue, 30 Jan 2018 17:47:07 +0000
From:   Colin King <colin.king@...onical.com>
To:     Dan Williams <dan.j.williams@...el.com>, linux-nvdimm@...ts.01.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] libnvdimm, namespace: remove redundant initialization of 'nd_mapping'

From: Colin Ian King <colin.king@...onical.com>

Pointer nd_mapping is being initialized to a value that is never read,
instead it is being updated to a new value in all the cases where it
is being read afterwards, hence the initialization is redundant and
can be removed.

Cleans up clang warning:
drivers/nvdimm/namespace_devs.c:2411:21: warning: Value stored to
'nd_mapping' during its initialization is never rea

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/nvdimm/namespace_devs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index bb3ba8cf24d4..658ada497be0 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -2408,7 +2408,7 @@ static struct device **scan_labels(struct nd_region *nd_region)
 
 static struct device **create_namespaces(struct nd_region *nd_region)
 {
-	struct nd_mapping *nd_mapping = &nd_region->mapping[0];
+	struct nd_mapping *nd_mapping;
 	struct device **devs;
 	int i;
 
-- 
2.15.1