Subject: [patch 08/24] timekeeping: Remove system_time_snapshot::real/boot

From: Thomas Gleixner <[email-masked]>
Date: Tue, 26 May 2026 19:14:08 +0200

All users are converted over to ktime_get_snapshot_id() and
system_time_snapshot::sys.

Remove the leftovers.

Signed-off-by: Thomas Gleixner <[email-masked]>
---
 include/linux/timekeeping.h |    4 ----
 kernel/time/timekeeping.c   |    8 --------
 2 files changed, 12 deletions(-)

--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -280,8 +280,6 @@ static inline bool ktime_get_aux_ts64(cl
  *				 a selected CLOCK_* and the clocksource counter value
  * @cycles:		Clocksource counter value to produce the system times
  * @sys:		The system time of the selected CLOCK ID
- * @real:		Realtime system time
- * @boot:		Boot time
  * @raw:		Monotonic raw system time
  * @cs_id:		Clocksource ID
  * @clock_was_set_seq:	The sequence number of clock-was-set events
@@ -291,8 +289,6 @@ static inline bool ktime_get_aux_ts64(cl
 struct system_time_snapshot {
 	u64			cycles;
 	ktime_t			sys;
-	ktime_t			real;
-	ktime_t			boot;
 	ktime_t			raw;
 	enum clocksource_ids	cs_id;
 	unsigned int		clock_was_set_seq;
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1196,8 +1196,6 @@ bool ktime_get_snapshot_id(struct system
 	struct timekeeper *tk;
 	struct tk_data *tkd;
 	unsigned int seq;
-	ktime_t base_real;
-	ktime_t base_boot;
 
 	/* Invalidate the snapshot for all failure cases */
 	systime_snapshot->valid = false;
@@ -1239,18 +1237,12 @@ bool ktime_get_snapshot_id(struct system
 		offs_sys = *offs;
 		base_raw = tk->tkr_raw.base;
 
-		/* Kept around until the callers are fixed up */
-		base_real = ktime_add(base_sys, tk_core.timekeeper.offs_real);
-		base_boot = ktime_add(base_sys, tk_core.timekeeper.offs_boot);
-
 		nsec_sys = timekeeping_cycles_to_ns(&tk->tkr_mono, now);
 		nsec_raw = timekeeping_cycles_to_ns(&tk->tkr_raw, now);
 	} while (read_seqcount_retry(&tkd->seq, seq));
 
 	systime_snapshot->cycles = now;
 	systime_snapshot->sys = ktime_add_ns(base_sys, offs_sys + nsec_sys);
-	systime_snapshot->real = ktime_add_ns(base_real, nsec_sys);
-	systime_snapshot->boot = ktime_add_ns(base_boot, nsec_sys);
 	systime_snapshot->raw = ktime_add_ns(base_raw, nsec_raw);
 
 	/*