From: Johannes Berg <johannes@sipsolutions.net>
To: backports@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>
Subject: [PATCH v2 02/11] backports: add mktime64()
Date: Fri, 13 Oct 2017 11:42:17 +0200 [thread overview]
Message-ID: <20171013094226.10021-2-johannes@sipsolutions.net> (raw)
In-Reply-To: <20171013094226.10021-1-johannes@sipsolutions.net>
From: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
backport/backport-include/linux/time64.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/backport/backport-include/linux/time64.h b/backport/backport-include/linux/time64.h
index 609b8904e40d..49805da9dfce 100644
--- a/backport/backport-include/linux/time64.h
+++ b/backport/backport-include/linux/time64.h
@@ -21,4 +21,26 @@
#define timespec64 timespec
#endif /* LINUX_VERSION_IS_LESS(3,17,0) */
+#if LINUX_VERSION_IS_LESS(3,19,0)
+static inline time64_t mktime64(const unsigned int year0, const unsigned int mon0,
+ const unsigned int day, const unsigned int hour,
+ const unsigned int min, const unsigned int sec)
+{
+ unsigned int mon = mon0, year = year0;
+
+ /* 1..12 -> 11,12,1..10 */
+ if (0 >= (int) (mon -= 2)) {
+ mon += 12; /* Puts Feb last since it has leap day */
+ year -= 1;
+ }
+
+ return ((((time64_t)
+ (year/4 - year/100 + year/400 + 367*mon/12 + day) +
+ year*365 - 719499
+ )*24 + hour /* now have hours - midnight tomorrow handled here */
+ )*60 + min /* now have minutes */
+ )*60 + sec; /* finally seconds */
+}
+#endif
+
#endif /* __BACKPORT_LINUX_TIME64_H */
--
2.14.2
--
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next prev parent reply other threads:[~2017-10-13 9:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 9:42 [PATCH v2 01/11] backports: move headers to be clearer Johannes Berg
2017-10-13 9:42 ` Johannes Berg [this message]
2017-10-13 9:42 ` [PATCH v2 03/11] copy-list: move mpls includes Johannes Berg
2017-10-13 9:42 ` [PATCH v2 04/11] backports: add hex_byte_pack Johannes Berg
2017-10-13 9:42 ` [PATCH v2 05/11] backports: add bin2hex() Johannes Berg
2017-10-13 9:42 ` [PATCH v2 06/11] backports: add signature verification code Johannes Berg
2017-10-13 9:42 ` [PATCH v2 07/11] backports: add netdev_upper_dev_link() extack argument Johannes Berg
2017-10-13 9:42 ` [PATCH v2 08/11] backports: make QTNFMAC_PEARL_PCIE depend on 3.13 Johannes Berg
2017-10-13 9:42 ` [PATCH v2 09/11] backports: RSI_SDIO depends " Johannes Berg
2017-10-13 9:42 ` [PATCH v2 10/11] backports-update-manager: use KPATH variable Johannes Berg
2017-10-13 9:42 ` [PATCH v2 11/11] backports: no longer support kernels < 3.10 Johannes Berg
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