linux-kernel - [PATCH] rtc: Add some dummy static inline functions

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Message-Id: <08716c8296f91fc43a64fbd0a4145b451a02f161.1473232117.git.baolin.wang@linaro.org>
Date:   Wed,  7 Sep 2016 15:17:26 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com
Cc:     rostedt@...dmis.org, mingo@...hat.com, john.stultz@...aro.org,
        tglx@...utronix.de, baolin.wang@...aro.org, broonie@...nel.org,
        linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com
Subject: [PATCH] rtc: Add some dummy static inline functions

Add some dummy static inline functions in case CONFIG_RTC_LIB is not defined.

Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
Fixes: a0a6e06d545a ("time: alarmtimer: Add tracepoints for alarmtimers")
---
 include/linux/rtc.h |   49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 48 insertions(+), 1 deletion(-)

diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index b693ada..521f752 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -16,13 +16,60 @@
 #include <linux/interrupt.h>
 #include <uapi/linux/rtc.h>
 
+#ifdef CONFIG_RTC_LIB
 extern int rtc_month_days(unsigned int month, unsigned int year);
-extern int rtc_year_days(unsigned int day, unsigned int month, unsigned int year);
+extern int rtc_year_days(unsigned int day, unsigned int month,
+			 unsigned int year);
 extern int rtc_valid_tm(struct rtc_time *tm);
 extern time64_t rtc_tm_to_time64(struct rtc_time *tm);
 extern void rtc_time64_to_tm(time64_t time, struct rtc_time *tm);
 ktime_t rtc_tm_to_ktime(struct rtc_time tm);
 struct rtc_time rtc_ktime_to_tm(ktime_t kt);
+#else
+static inline int rtc_month_days(unsigned int month, unsigned int year)
+{
+	return 0;
+}
+
+static inline int rtc_year_days(unsigned int day, unsigned int month,
+				unsigned int year)
+{
+	return 0;
+}
+
+static inline int rtc_valid_tm(struct rtc_time *tm)
+{
+	return 0;
+}
+
+static inline time64_t rtc_tm_to_time64(struct rtc_time *tm)
+{
+	time64_t ret;
+
+	memset(&ret, 0, sizeof(time64_t));
+	return ret;
+}
+
+static inline void rtc_time64_to_tm(time64_t time, struct rtc_time *tm)
+{
+}
+
+static inline ktime_t rtc_tm_to_ktime(struct rtc_time tm)
+{
+	ktime_t ret;
+
+	memset(&ret, 0, sizeof(ktime_t));
+	return ret;
+}
+
+static inline struct rtc_time rtc_ktime_to_tm(ktime_t kt)
+{
+	struct rtc_time ret;
+
+	memset(&ret, 0, sizeof(struct rtc_time));
+	return ret;
+}
+#endif
 
 /*
  * rtc_tm_sub - Return the difference in seconds.
-- 
1.7.9.5