linux-kernel - [tip: timers/core] tick/sched: Don't clear ts::next_tick again in can_stop_idle

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Date: Mon, 26 Feb 2024 22:24:36 -0000
From: "tip-bot2 for Frederic Weisbecker" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Frederic Weisbecker <frederic@...nel.org>,
 Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: timers/core] tick/sched: Don't clear ts::next_tick again in
 can_stop_idle_tick()

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     60313c21c33abc08108bdd60390fa89563977e64
Gitweb:        https://git.kernel.org/tip/60313c21c33abc08108bdd60390fa89563977e64
Author:        Frederic Weisbecker <frederic@...nel.org>
AuthorDate:    Sun, 25 Feb 2024 23:54:58 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 26 Feb 2024 11:37:31 +01:00

tick/sched: Don't clear ts::next_tick again in can_stop_idle_tick()

The tick sched structure is already cleared from tick_cancel_sched_timer(),
so there is no need to clear that field again.

Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/r/20240225225508.11587-7-frederic@kernel.org

---
 kernel/time/tick-sched.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 9f75f56..b17895d 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -1143,11 +1143,6 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
 	if (unlikely(!cpu_online(cpu))) {
 		if (cpu == tick_do_timer_cpu)
 			tick_do_timer_cpu = TICK_DO_TIMER_NONE;
-		/*
-		 * Make sure the CPU doesn't get fooled by obsolete tick
-		 * deadline if it comes back online later.
-		 */
-		ts->next_tick = 0;
 		return false;
 	}