linux-kernel - [PATCH 3/3] KVM: PPC: use for_each_set_bit() in IRQ

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Message-ID: <20250717192418.207114-4-yury.norov@gmail.com>
Date: Thu, 17 Jul 2025 15:24:16 -0400
From: Yury Norov <yury.norov@...il.com>
To: Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Nicholas Piggin <npiggin@...il.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Yury Norov <yury.norov@...il.com>
Subject: [PATCH 3/3] KVM: PPC: use for_each_set_bit() in IRQ_check()

From: Yury Norov (NVIDIA) <yury.norov@...il.com>

The function opencodes for_each_set_bit() macro.

Signed-off-by: Yury Norov (NVIDIA) <yury.norov@...il.com>
---
 arch/powerpc/kvm/mpic.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c
index 23e9c2bd9f27..ae68b213f0f9 100644
--- a/arch/powerpc/kvm/mpic.c
+++ b/arch/powerpc/kvm/mpic.c
@@ -290,15 +290,11 @@ static inline void IRQ_resetbit(struct irq_queue *q, int n_IRQ)
 
 static void IRQ_check(struct openpic *opp, struct irq_queue *q)
 {
-	int irq = -1;
+	int irq;
 	int next = -1;
 	int priority = -1;
 
-	for (;;) {
-		irq = find_next_bit(q->queue, opp->max_irq, irq + 1);
-		if (irq == opp->max_irq)
-			break;
-
+	for_each_set_bit(irq, q->queue, opp->max_irq) {
 		pr_debug("IRQ_check: irq %d set ivpr_pr=%d pr=%d\n",
 			irq, IVPR_PRIORITY(opp->src[irq].ivpr), priority);
 
-- 
2.43.0