linux-kernel - [PATCH 4.19 292/639] rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN

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Message-Id: <20200124093123.464540019@linuxfoundation.org>
Date:   Fri, 24 Jan 2020 10:27:42 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 292/639] rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900

From: Geert Uytterhoeven <geert+renesas@...der.be>

[ Upstream commit d3062d1d7415cb5a37777220357aca51a491c3d7 ]

Printing "mktime64(1900, 1, 1, 0, 0, 0)" gives -2208988800.

Fixes: 83bbc5ac63326433 ("rtc: Add useful timestamp definitions")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/linux/rtc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 6aedc30003e73..5a34f59941fb7 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -163,7 +163,7 @@ struct rtc_device {
 #define to_rtc_device(d) container_of(d, struct rtc_device, dev)
 
 /* useful timestamps */
-#define RTC_TIMESTAMP_BEGIN_1900	-2208989361LL /* 1900-01-01 00:00:00 */
+#define RTC_TIMESTAMP_BEGIN_1900	-2208988800LL /* 1900-01-01 00:00:00 */
 #define RTC_TIMESTAMP_BEGIN_2000	946684800LL /* 2000-01-01 00:00:00 */
 #define RTC_TIMESTAMP_END_2099		4102444799LL /* 2099-12-31 23:59:59 */
 
-- 
2.20.1