From: Yury Norov <yury.norov@gmail.com>
To: Madhavan Srinivasan <maddy@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Yury Norov <yury.norov@gmail.com>
Subject: [PATCH 1/3] KVM: PPC: simplify kvmppc_core_prepare_to_enter()
Date: Thu, 17 Jul 2025 15:24:14 -0400 [thread overview]
Message-ID: <20250717192418.207114-2-yury.norov@gmail.com> (raw)
In-Reply-To: <20250717192418.207114-1-yury.norov@gmail.com>
From: Yury Norov (NVIDIA) <yury.norov@gmail.com>
The function opencodes for_each_set_bit() macro.
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
---
arch/powerpc/kvm/book3s.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d79c5d1098c0..dc05ea496aad 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -401,17 +401,12 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
if (vcpu->arch.pending_exceptions)
printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
#endif
- priority = __ffs(*pending);
- while (priority < BOOK3S_IRQPRIO_MAX) {
+ for_each_set_bit(priority, pending, BOOK3S_IRQPRIO_MAX) {
if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
clear_irqprio(vcpu, priority)) {
clear_bit(priority, &vcpu->arch.pending_exceptions);
break;
}
-
- priority = find_next_bit(pending,
- BITS_PER_BYTE * sizeof(*pending),
- priority + 1);
}
/* Tell the guest about our interrupt status */
--
2.43.0
next prev parent reply other threads:[~2025-07-17 19:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-17 19:24 [PATCH 0/3] KVM: PPC: use for_each_set_bit() macro where appropriate Yury Norov
2025-07-17 19:24 ` Yury Norov [this message]
2025-07-17 19:24 ` [PATCH 2/3] KVM: PPC: simplify kvmppc_core_check_exceptions() Yury Norov
2025-07-17 19:24 ` [PATCH 3/3] KVM: PPC: use for_each_set_bit() in IRQ_check() Yury Norov
2025-07-22 8:23 ` Jiri Slaby
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