linux-kernel - [PATCH 2/3] rtc: sunxi: constify the data_year

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Message-Id: <1447930210-27008-2-git-send-email-clabbe.montjoie@gmail.com>
Date:	Thu, 19 Nov 2015 11:50:09 +0100
From:	LABBE Corentin <clabbe.montjoie@...il.com>
To:	alexandre.belloni@...e-electrons.com, a.zummo@...ertech.it,
	linux-arm-kernel@...ts.infradead.org,
	maxime.ripard@...e-electrons.com, wens@...e.org
Cc:	LABBE Corentin <clabbe.montjoie@...il.com>,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com
Subject: [PATCH 2/3] rtc: sunxi: constify the data_year_param structure

The data_year_param struct is never modified, so lets constify it.
This permit to remove cast since of_device_id is const also.

Signed-off-by: LABBE Corentin <clabbe.montjoie@...il.com>
---
 drivers/rtc/rtc-sunxi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c
index b4f35ac..0c08a5b 100644
--- a/drivers/rtc/rtc-sunxi.c
+++ b/drivers/rtc/rtc-sunxi.c
@@ -133,7 +133,7 @@ struct sunxi_rtc_data_year {
 	unsigned char leap_shift;	/* bit shift to get the leap year */
 };
 
-static struct sunxi_rtc_data_year data_year_param[] = {
+static const struct sunxi_rtc_data_year data_year_param[] = {
 	[0] = {
 		.min		= 2010,
 		.max		= 2073,
@@ -151,7 +151,7 @@ static struct sunxi_rtc_data_year data_year_param[] = {
 struct sunxi_rtc_dev {
 	struct rtc_device *rtc;
 	struct device *dev;
-	struct sunxi_rtc_data_year *data_year;
+	const struct sunxi_rtc_data_year *data_year;
 	void __iomem *base;
 	int irq;
 };
@@ -468,7 +468,7 @@ static int sunxi_rtc_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Unable to setup RTC data\n");
 		return -ENODEV;
 	}
-	chip->data_year = (struct sunxi_rtc_data_year *) of_id->data;
+	chip->data_year = of_id->data;
 
 	/* clear the alarm count value */
 	writel(0, chip->base + SUNXI_ALRM_DHMS);
-- 
2.4.10

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