Messages in this thread Patch in this message | | | Date | Fri, 23 Jan 2015 02:48:39 -0800 | From | tip-bot for Chunyan Zhang <> | Subject | [tip:timers/core] ktime.h: Introduce ktime_ms_delta |
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Commit-ID: 41fbf3b39d5eca01527338b4d0ee15ee1ae1023c Gitweb: http://git.kernel.org/tip/41fbf3b39d5eca01527338b4d0ee15ee1ae1023c Author: Chunyan Zhang <zhang.chunyan@linaro.org> AuthorDate: Wed, 17 Dec 2014 13:11:35 +0800 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Fri, 23 Jan 2015 11:47:15 +0100
ktime.h: Introduce ktime_ms_delta
This patch adds a reusable time difference function which returns the difference in millisecond, as often used in some driver code, e.g. mtd/test, media/rc, etc.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org> Acked-by: Arnd Bergmann <arnd@linaro.org> Cc: zhang.lyra@gmail.com Cc: davem@davemloft.net Cc: john.stultz@linaro.org Cc: dborkman@redhat.com Link: http://lkml.kernel.org/r/1418793095-18780-1-git-send-email-zhang.chunyan@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/ktime.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/linux/ktime.h b/include/linux/ktime.h index c9d645a..891ea92 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -186,6 +186,11 @@ static inline s64 ktime_us_delta(const ktime_t later, const ktime_t earlier) return ktime_to_us(ktime_sub(later, earlier)); } +static inline s64 ktime_ms_delta(const ktime_t later, const ktime_t earlier) +{ + return ktime_to_ms(ktime_sub(later, earlier)); +} + static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec) { return ktime_add_ns(kt, usec * NSEC_PER_USEC);
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