linux-kernel - [PATCH 06/13] timer: Revert "timer: Add timer_curr

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Message-Id: <20210223001011.127063-7-frederic@kernel.org>
Date:   Tue, 23 Feb 2021 01:10:04 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     "Paul E . McKenney" <paulmck@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Boqun Feng <boqun.feng@...il.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Neeraj Upadhyay <neeraju@...eaurora.org>,
        Josh Triplett <josh@...htriplett.org>,
        Stable <stable@...r.kernel.org>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: [PATCH 06/13] timer: Revert "timer: Add timer_curr_running()"

This reverts commit dcd42591ebb8a25895b551a5297ea9c24414ba54.
The only user was RCU/nocb.

Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
Cc: Josh Triplett <josh@...htriplett.org>
Cc: Lai Jiangshan <jiangshanlai@...il.com>
Cc: Joel Fernandes <joel@...lfernandes.org>
Cc: Neeraj Upadhyay <neeraju@...eaurora.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
---
 include/linux/timer.h |  2 --
 kernel/time/timer.c   | 14 --------------
 2 files changed, 16 deletions(-)

diff --git a/include/linux/timer.h b/include/linux/timer.h
index 4118a97e62fb..fda13c9d1256 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -192,8 +192,6 @@ extern int try_to_del_timer_sync(struct timer_list *timer);
 
 #define del_singleshot_timer_sync(t) del_timer_sync(t)
 
-extern bool timer_curr_running(struct timer_list *timer);
-
 extern void init_timers(void);
 struct hrtimer;
 extern enum hrtimer_restart it_real_fn(struct hrtimer *);
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index f475f1a027c8..8dbc008f8942 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1237,20 +1237,6 @@ int try_to_del_timer_sync(struct timer_list *timer)
 }
 EXPORT_SYMBOL(try_to_del_timer_sync);
 
-bool timer_curr_running(struct timer_list *timer)
-{
-	int i;
-
-	for (i = 0; i < NR_BASES; i++) {
-		struct timer_base *base = this_cpu_ptr(&timer_bases[i]);
-
-		if (base->running_timer == timer)
-			return true;
-	}
-
-	return false;
-}
-
 #ifdef CONFIG_PREEMPT_RT
 static __init void timer_base_init_expiry_lock(struct timer_base *base)
 {
-- 
2.25.1