Some vqs may not need to be allocated when their related feature bits
are disabled. So callers may pass in such vqs with "names = NULL".
Then we skip such vq allocations.
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Cc: stable@vger.kernel.org
Fixes:
86a559787e6f ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT")
struct _vop_vdev *vdev = to_vopvdev(dev);
struct vop_device *vpdev = vdev->vpdev;
struct mic_device_ctrl __iomem *dc = vdev->dc;
- int i, err, retry;
+ int i, err, retry, queue_idx = 0;
/* We must have this many virtqueues. */
if (nvqs > ioread8(&vdev->desc->num_vq))
return -ENOENT;
for (i = 0; i < nvqs; ++i) {
+ if (!names[i]) {
+ vqs[i] = NULL;
+ continue;
+ }
+
dev_dbg(_vop_dev(vdev), "%s: %d: %s\n",
__func__, i, names[i]);
- vqs[i] = vop_find_vq(dev, i, callbacks[i], names[i],
+ vqs[i] = vop_find_vq(dev, queue_idx++, callbacks[i], names[i],
ctx ? ctx[i] : false);
if (IS_ERR(vqs[i])) {
err = PTR_ERR(vqs[i]);
const bool * ctx,
struct irq_affinity *desc)
{
- int i, ret;
+ int i, ret, queue_idx = 0;
for (i = 0; i < nvqs; ++i) {
- vqs[i] = rp_find_vq(vdev, i, callbacks[i], names[i],
+ if (!names[i]) {
+ vqs[i] = NULL;
+ continue;
+ }
+
+ vqs[i] = rp_find_vq(vdev, queue_idx++, callbacks[i], names[i],
ctx ? ctx[i] : false);
if (IS_ERR(vqs[i])) {
ret = PTR_ERR(vqs[i]);
{
struct virtio_ccw_device *vcdev = to_vc_device(vdev);
unsigned long *indicatorp = NULL;
- int ret, i;
+ int ret, i, queue_idx = 0;
struct ccw1 *ccw;
ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
return -ENOMEM;
for (i = 0; i < nvqs; ++i) {
- vqs[i] = virtio_ccw_setup_vq(vdev, i, callbacks[i], names[i],
- ctx ? ctx[i] : false, ccw);
+ if (!names[i]) {
+ vqs[i] = NULL;
+ continue;
+ }
+
+ vqs[i] = virtio_ccw_setup_vq(vdev, queue_idx++, callbacks[i],
+ names[i], ctx ? ctx[i] : false,
+ ccw);
if (IS_ERR(vqs[i])) {
ret = PTR_ERR(vqs[i]);
vqs[i] = NULL;
{
struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
unsigned int irq = platform_get_irq(vm_dev->pdev, 0);
- int i, err;
+ int i, err, queue_idx = 0;
err = request_irq(irq, vm_interrupt, IRQF_SHARED,
dev_name(&vdev->dev), vm_dev);
return err;
for (i = 0; i < nvqs; ++i) {
- vqs[i] = vm_setup_vq(vdev, i, callbacks[i], names[i],
+ if (!names[i]) {
+ vqs[i] = NULL;
+ continue;
+ }
+
+ vqs[i] = vm_setup_vq(vdev, queue_idx++, callbacks[i], names[i],
ctx ? ctx[i] : false);
if (IS_ERR(vqs[i])) {
vm_del_vqs(vdev);