linux-kernel - [PATCH] rtc: rtc-jz4740: remove unused function in rtc-jz4740.c

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Message-Id: <1474794449-26185-1-git-send-email-baoyou.xie@linaro.org>
Date:   Sun, 25 Sep 2016 17:07:29 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com
Cc:     rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn,
        han.fei@....com.cn, tang.qiang007@....com.cn
Subject: [PATCH] rtc: rtc-jz4740: remove unused function in rtc-jz4740.c

We get 1 warning when building kernel with W=1:
drivers/rtc/rtc-jz4740.c:206:6: warning: no previous prototype for 'jz4740_rtc_poweroff' [-Wmissing-prototypes]

In fact, this function is unused in
drivers/rtc/rtc-jz4740.c, but should be removed.

So this patch removes the unused function.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/rtc/rtc-jz4740.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index 5e14651..4788cc0 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -203,13 +203,6 @@ static irqreturn_t jz4740_rtc_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-void jz4740_rtc_poweroff(struct device *dev)
-{
-	struct jz4740_rtc *rtc = dev_get_drvdata(dev);
-	jz4740_rtc_reg_write(rtc, JZ_REG_RTC_HIBERNATE, 1);
-}
-EXPORT_SYMBOL_GPL(jz4740_rtc_poweroff);
-
 static int jz4740_rtc_probe(struct platform_device *pdev)
 {
 	int ret;
-- 
2.7.4