linux-kernel - [PATCH 2/4] rtc: em3027: constify i2c_device

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Message-Id: <1503169678-18078-3-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Sun, 20 Aug 2017 00:37:56 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com
Cc:     linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: [PATCH 2/4] rtc: em3027: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/rtc/rtc-em3027.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c
index 4f4930a..b0ef8cf 100644
--- a/drivers/rtc/rtc-em3027.c
+++ b/drivers/rtc/rtc-em3027.c
@@ -132,7 +132,7 @@ static int em3027_probe(struct i2c_client *client,
 	return 0;
 }
 
-static struct i2c_device_id em3027_id[] = {
+static const struct i2c_device_id em3027_id[] = {
 	{ "em3027", 0 },
 	{ }
 };
-- 
2.7.4