linux-kernel - [PATCH] iio: accel: mma8452: Constify static struct attribute

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Date:   Thu,  1 Oct 2020 01:29:39 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Alexandru Ardelean <alexandru.ardelean@...log.com>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] iio: accel: mma8452: Constify static struct attribute_group

The only usage of mma8452_event_attribute_group is to assign its address
to the event_attrs field in the iio_info struct, which is a const
pointer. Make it const to allow the compiler to put it in read-only
memory. This was the only non-const static struct in drivers/iio.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/iio/accel/mma8452.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index bf1d2c8afdbd..b0176d936423 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1187,7 +1187,7 @@ static struct attribute *mma8452_event_attributes[] = {
 	NULL,
 };
 
-static struct attribute_group mma8452_event_attribute_group = {
+static const struct attribute_group mma8452_event_attribute_group = {
 	.attrs = mma8452_event_attributes,
 };
 
-- 
2.28.0