linux-kernel - [PATCH] rcu: remove unnecessary check cpu_no_qs.norm on rcu_report_qs

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Message-ID: <20230721121534.44328-1-ppbuk5246@gmail.com>
Date:   Fri, 21 Jul 2023 13:15:33 +0100
From:   Levi Yun <ppbuk5246@...il.com>
To:     paulmck@...nel.org, frederic@...nel.org, quic_neeraju@...cinc.com,
        joel@...lfernandes.org, osh@...htriplett.org, boqun.feng@...il.com,
        rostedt@...dmis.org, mathieu.desnoyers@...icios.com,
        jiangshanlai@...il.com, qiang.zhang1211@...il.com
Cc:     Levi Yun <ppbuk5246@...il.com>, rcu@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] rcu: remove unnecessary check cpu_no_qs.norm on rcu_report_qs_rdp

Wherever rcu_report_qs_rdp is called, cpu_no_qs.norm value is false.
Therefore, Remove unnecessary check in rcu_report_qs_rdp.

Signed-off-by: Levi Yun <ppbuk5246@...il.com>
---
 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 1449cb69a0e0..d840596e9903 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1962,8 +1962,7 @@ rcu_report_qs_rdp(struct rcu_data *rdp)
 	WARN_ON_ONCE(rdp->cpu != smp_processor_id());
 	rnp = rdp->mynode;
 	raw_spin_lock_irqsave_rcu_node(rnp, flags);
-	if (rdp->cpu_no_qs.b.norm || rdp->gp_seq != rnp->gp_seq ||
-	    rdp->gpwrap) {
+	if (rdp->gp_seq != rnp->gp_seq || rdp->gpwrap) {

 		/*
 		 * The grace period in which this quiescent state was
--
2.37.2