diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/lguest/lguest_device.c | 3 | ||||
| -rw-r--r-- | drivers/remoteproc/remoteproc_virtio.c | 3 | ||||
| -rw-r--r-- | drivers/s390/kvm/kvm_virtio.c | 8 | ||||
| -rw-r--r-- | drivers/s390/kvm/virtio_ccw.c | 5 | ||||
| -rw-r--r-- | drivers/virtio/virtio_mmio.c | 3 | ||||
| -rw-r--r-- | drivers/virtio/virtio_pci.c | 3 | ||||
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 4 |
7 files changed, 20 insertions, 9 deletions
diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index b3256ff0d42..d0a1d8a45c8 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -229,7 +229,7 @@ struct lguest_vq_info { * make a hypercall. We hand the physical address of the virtqueue so the Host * knows which virtqueue we're talking about. */ -static void lg_notify(struct virtqueue *vq) +static bool lg_notify(struct virtqueue *vq) { /* * We store our virtqueue information in the "priv" pointer of the @@ -238,6 +238,7 @@ static void lg_notify(struct virtqueue *vq) struct lguest_vq_info *lvq = vq->priv; hcall(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT, 0, 0, 0); + return true; } /* An extern declaration inside a C file is bad form. Don't do it. */ diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index b09c75c21b6..a34b50690b4 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -30,7 +30,7 @@ #include "remoteproc_internal.h" /* kick the remote processor, and let it know which virtqueue to poke at */ -static void rproc_virtio_notify(struct virtqueue *vq) +static bool rproc_virtio_notify(struct virtqueue *vq) { struct rproc_vring *rvring = vq->priv; struct rproc *rproc = rvring->rvdev->rproc; @@ -39,6 +39,7 @@ static void rproc_virtio_notify(struct virtqueue *vq) dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid); rproc->ops->kick(rproc, notifyid); + return true; } /** diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index af2166fa515..1abd0db2991 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -166,11 +166,15 @@ static void kvm_reset(struct virtio_device *vdev) * make a hypercall. We hand the address of the virtqueue so the Host * knows which virtqueue we're talking about. */ -static void kvm_notify(struct virtqueue *vq) +static bool kvm_notify(struct virtqueue *vq) { + long rc; struct kvm_vqconfig *config = vq->priv; - kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, config->address); + rc = kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, config->address); + if (rc < 0) + return false; + return true; } /* diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c index 779dc513629..d6297176ab8 100644 --- a/drivers/s390/kvm/virtio_ccw.c +++ b/drivers/s390/kvm/virtio_ccw.c @@ -162,7 +162,7 @@ static inline long do_kvm_notify(struct subchannel_id schid, return __rc; } -static void virtio_ccw_kvm_notify(struct virtqueue *vq) +static bool virtio_ccw_kvm_notify(struct virtqueue *vq) { struct virtio_ccw_vq_info *info = vq->priv; struct virtio_ccw_device *vcdev; @@ -171,6 +171,9 @@ static void virtio_ccw_kvm_notify(struct virtqueue *vq) vcdev = to_vc_device(info->vq->vdev); ccw_device_get_schid(vcdev->cdev, &schid); info->cookie = do_kvm_notify(schid, vq->index, info->cookie); + if (info->cookie < 0) + return false; + return true; } static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev, diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index 1ba0d683101..e9fdeb86199 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -219,13 +219,14 @@ static void vm_reset(struct virtio_device *vdev) /* Transport interface */ /* the notify function used when creating a virt queue */ -static void vm_notify(struct virtqueue *vq) +static bool vm_notify(struct virtqueue *vq) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev); /* We write the queue's selector into the notification register to * signal the other end */ writel(vq->index, vm_dev->base + VIRTIO_MMIO_QUEUE_NOTIFY); + return true; } /* Notify all virtqueues on an interrupt. */ diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 98917fc872a..a37c69941d3 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -197,13 +197,14 @@ static void vp_reset(struct virtio_device *vdev) } /* the notify function used when creating a virt queue */ -static void vp_notify(struct virtqueue *vq) +static bool vp_notify(struct virtqueue *vq) { struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); /* we write the queue's selector into the notification register to * signal the other end */ iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NOTIFY); + return true; } /* Handle a configuration change: Tell driver if it wants to know. */ diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 6547d46171b..97dd51619b5 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -81,7 +81,7 @@ struct vring_virtqueue u16 last_used_idx; /* How to notify other side. FIXME: commonalize hcalls! */ - void (*notify)(struct virtqueue *vq); + bool (*notify)(struct virtqueue *vq); #ifdef DEBUG /* They're supposed to lock for us. */ @@ -744,7 +744,7 @@ struct virtqueue *vring_new_virtqueue(unsigned int index, struct virtio_device *vdev, bool weak_barriers, void *pages, - void (*notify)(struct virtqueue *), + bool (*notify)(struct virtqueue *), void (*callback)(struct virtqueue *), const char *name) { |