From: Paul E. McKenney <paulmck@kernel.org>
Date: Wed, 8 Jun 2022 16:34:10 +0000 (-0700)
Subject: rcu: Initialize first_gp_fqs at declaration in rcu_gp_fqs()
X-Git-Tag: v6.0-rc1~163^2~1^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9bdb5b3a8d8ad1c92db309219859fe1c87c95351;p=thirdparty%2Flinux.git

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@kernel.org>
Reported-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 6f4656aed962a..a23877a773be3 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;