linux-kernel - [PATCH 09/11] iio: orientation: hid-sensor-rotation: Drop unnecessary static

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Date:   Sat, 15 Jul 2017 22:07:44 +0200
From:   Julia Lawall <Julia.Lawall@...6.fr>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     keescook@...omium.org, kernel-janitors@...r.kernel.org,
        Jonathan Cameron <jic23@...nel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-input@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 09/11] iio: orientation: hid-sensor-rotation: Drop unnecessary static

Drop static on a local variable, when the variable is initialized before
any possible use.  Thus, the static has no benefit.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@
static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@
-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
These patches are all independent of each other.

 drivers/iio/orientation/hid-sensor-rotation.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -238,7 +238,7 @@ static int dev_rot_parse_report(struct p
 static int hid_dev_rot_probe(struct platform_device *pdev)
 {
 	int ret;
-	static char *name;
+	char *name;
 	struct iio_dev *indio_dev;
 	struct dev_rot_state *rot_state;
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;