From 614aeab4dcd0aafb1538d5035eb9855f15b84014 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Mon, 25 Aug 2014 12:27:29 +0200 Subject: [PATCH] KVM: s390: add __must_check to interrupt deliver functions We now propagate interrupt injection errors back to the ioctl. We should mark functions that might fail with __must_check. Signed-off-by: Christian Borntraeger Acked-by: Jens Freimann --- arch/s390/kvm/interrupt.c | 12 ++++++------ arch/s390/kvm/kvm-s390.h | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 60a5cf40d49a..d56da1db8ba0 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -28,7 +28,7 @@ #define IOINT_AI_MASK 0x04000000 #define PFAULT_INIT 0x0600 -static int deliver_ckc_interrupt(struct kvm_vcpu *vcpu); +static int __must_check deliver_ckc_interrupt(struct kvm_vcpu *vcpu); static int is_ioint(u64 type) { @@ -77,7 +77,7 @@ static u64 int_word_to_isc_bits(u32 int_word) return (0x80 >> isc) << 24; } -static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu, +static int __must_check __interrupt_is_deliverable(struct kvm_vcpu *vcpu, struct kvm_s390_interrupt_info *inti) { switch (inti->type) { @@ -225,7 +225,7 @@ static u16 get_ilc(struct kvm_vcpu *vcpu) } } -static int __deliver_prog_irq(struct kvm_vcpu *vcpu, +static int __must_check __deliver_prog_irq(struct kvm_vcpu *vcpu, struct kvm_s390_pgm_info *pgm_info) { int rc = 0; @@ -307,7 +307,7 @@ static int __deliver_prog_irq(struct kvm_vcpu *vcpu, return rc; } -static int __do_deliver_interrupt(struct kvm_vcpu *vcpu, +static int __must_check __do_deliver_interrupt(struct kvm_vcpu *vcpu, struct kvm_s390_interrupt_info *inti) { const unsigned short table[] = { 2, 4, 4, 6 }; @@ -508,7 +508,7 @@ static int __do_deliver_interrupt(struct kvm_vcpu *vcpu, return rc; } -static int deliver_ckc_interrupt(struct kvm_vcpu *vcpu) +static int __must_check deliver_ckc_interrupt(struct kvm_vcpu *vcpu) { int rc; @@ -657,7 +657,7 @@ void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu) &vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].ctrl); } -int kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu) +int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu) { struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int; struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 99abcb56e478..b1a77669137b 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -138,7 +138,7 @@ static inline int kvm_s390_user_cpu_state_ctrl(struct kvm *kvm) int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu); enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); -int kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); +int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu); void kvm_s390_clear_float_irqs(struct kvm *kvm); int __must_check kvm_s390_inject_vm(struct kvm *kvm, -- 2.20.1