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[23/24] timekeeping: Remove TK_MIRROR timekeeping_update() action

Message ID 20240911-devel-anna-maria-b4-timers-ptp-timekeeping-v1-23-f7cae09e25d6@linutronix.de (mailing list archive)
State Not Applicable
Headers show
Series timekeeping: Rework to prepare support of indenpendent PTP clocks | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Anna-Maria Behnsen Sept. 11, 2024, 1:30 p.m. UTC 
All call sites of using TK_MIRROR flag in timekeeping_update() are
gone. The TK_MIRROR dependent code path is therefore dead code.

Remove it along with the TK_MIRROR define.

Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
---
 kernel/time/timekeeping.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)
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Patch

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index cbca0351ceca..6aa77cec23f8 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -30,8 +30,7 @@ 
 #include "timekeeping_internal.h"
 
 #define TK_CLEAR_NTP		(1 << 0)
-#define TK_MIRROR		(1 << 1)
-#define TK_CLOCK_WAS_SET	(1 << 2)
+#define TK_CLOCK_WAS_SET	(1 << 1)
 
 #define TK_UPDATE_ALL		(TK_CLEAR_NTP | TK_CLOCK_WAS_SET)
 
@@ -797,13 +796,6 @@  static void timekeeping_update(struct tk_data *tkd, struct timekeeper *tk, unsig
 
 	if (action & TK_CLOCK_WAS_SET)
 		tk->clock_was_set_seq++;
-	/*
-	 * The mirroring of the data to the shadow-timekeeper needs
-	 * to happen last here to ensure we don't over-write the
-	 * timekeeper structure on the next update with stale data
-	 */
-	if (action & TK_MIRROR)
-		timekeeping_restore_shadow(tkd);
 }
 
 static void timekeeping_update_staged(struct tk_data *tkd, unsigned int action)