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authorAdrian Hunter <adrian.hunter@intel.com>2024-03-25 07:40:19 +0100
committerThomas Gleixner <tglx@linutronix.de>2024-04-08 15:03:08 +0200
commit3094c6db1cba0bbca6ea19c777762c26fee747d7 (patch)
tree77899f33129e23177b01f68c8150c5ab3e93386e /kernel
parenttimekeeping: Consolidate timekeeping helpers (diff)
downloadlinux-3094c6db1cba0bbca6ea19c777762c26fee747d7.tar.xz
linux-3094c6db1cba0bbca6ea19c777762c26fee747d7.zip
timekeeping: Fold in timekeeping_delta_to_ns()
timekeeping_delta_to_ns() is now called only from timekeeping_cycles_to_ns(), and it is not useful otherwise. Simplify the code by folding it into timekeeping_cycles_to_ns(). No functional change. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240325064023.2997-16-adrian.hunter@intel.com
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/timekeeping.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 1bbfe1ff8d24..749387f22f0f 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -364,23 +364,12 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
}
/* Timekeeper helper functions. */
-
-static inline u64 timekeeping_delta_to_ns(const struct tk_read_base *tkr, u64 delta)
-{
- u64 nsec;
-
- nsec = delta * tkr->mult + tkr->xtime_nsec;
- nsec >>= tkr->shift;
-
- return nsec;
-}
-
static inline u64 timekeeping_cycles_to_ns(const struct tk_read_base *tkr, u64 cycles)
{
/* Calculate the delta since the last update_wall_time() */
u64 delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
- return timekeeping_delta_to_ns(tkr, delta);
+ return ((delta * tkr->mult) + tkr->xtime_nsec) >> tkr->shift;
}
static __always_inline u64 __timekeeping_get_ns(const struct tk_read_base *tkr)