linux-kernel - [PATCH 03/31] KVM: s390: Switch to use hrtimer

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Message-Id: <b679f234d1de853d5ba1ea482d971073682be57f.1729864823.git.namcao@linutronix.de>
Date: Mon, 28 Oct 2024 08:31:36 +0100
From: Nam Cao <namcao@...utronix.de>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Kees Cook <kees@...nel.org>,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>
Subject: [PATCH 03/31] KVM: s390: Switch to use hrtimer_setup()

There is a newly introduced hrtimer_setup() which will replace
hrtimer_init(). This new function is similar to the old one, except that it
also sanity-checks and initializes the timer's callback function.

Switch to use this new function.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <namcao@...utronix.de>
---
Cc: Christian Borntraeger <borntraeger@...ux.ibm.com>
---
 arch/s390/kvm/interrupt.c | 3 +--
 arch/s390/kvm/kvm-s390.c  | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 4f0e7f61edf7..3c8685ffea62 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -3174,8 +3174,7 @@ void kvm_s390_gisa_init(struct kvm *kvm)
 	gi->alert.mask = 0;
 	spin_lock_init(&gi->alert.ref_lock);
 	gi->expires = 50 * 1000; /* 50 usec */
-	hrtimer_init(&gi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	gi->timer.function = gisa_vcpu_kicker;
+	hrtimer_setup(&gi->timer, gisa_vcpu_kicker, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	memset(gi->origin, 0, sizeof(struct kvm_s390_gisa));
 	gi->origin->next_alert = (u32)virt_to_phys(gi->origin);
 	VM_EVENT(kvm, 3, "gisa 0x%pK initialized", gi->origin);
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index bb7134faaebf..4ab20ba0392c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -3896,8 +3896,8 @@ static int kvm_s390_vcpu_setup(struct kvm_vcpu *vcpu)
 		if (rc)
 			return rc;
 	}
-	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
+	hrtimer_setup(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	vcpu->arch.sie_block->hpid = HPID_KVM;
 
-- 
2.39.5