linux-kernel - [PATCH rcu 10/12] rcu: Initialize first_gp_fqs at declaration in rcu_gp

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Message-Id: <20220620222032.3839547-10-paulmck@kernel.org>
Date:   Mon, 20 Jun 2022 15:20:30 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com,
        rostedt@...dmis.org, "Paul E. McKenney" <paulmck@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>
Subject: [PATCH rcu 10/12] rcu: Initialize first_gp_fqs at declaration in rcu_gp_fqs()

This commit saves a line of code by initializing the rcu_gp_fqs()
function's first_gp_fqs local variable in its declaration.

Reported-by: Frederic Weisbecker <frederic@...nel.org>
Reported-by: Neeraj Upadhyay <quic_neeraju@...cinc.com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 kernel/rcu/tree.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 7919d7b48fa6a..7d8e9cb852786 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1971,13 +1971,12 @@ static void rcu_gp_fqs(bool first_time)
  */
 static noinline_for_stack void rcu_gp_fqs_loop(void)
 {
-	bool first_gp_fqs;
+	bool first_gp_fqs = true;
 	int gf = 0;
 	unsigned long j;
 	int ret;
 	struct rcu_node *rnp = rcu_get_root();
 
-	first_gp_fqs = true;
 	j = READ_ONCE(jiffies_till_first_fqs);
 	if (rcu_state.cbovld)
 		gf = RCU_GP_FLAG_OVLD;
-- 
2.31.1.189.g2e36527f23