diff options
| author | Sjur Brændeland <sjur.brandeland@stericsson.com> | 2013-02-12 09:54:59 +0400 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-02-12 09:56:39 +0400 |
| commit | dc18f0800f5f16460030a9623d4fcc165d607edf (patch) | |
| tree | 27318d5a4cb4bddb3792d0f4dc65d224939d95f7 /drivers/char | |
| parent | 35cdc9eb65837687bdfc9ea1d2515eb03ea5048a (diff) | |
| download | linux-dc18f0800f5f16460030a9623d4fcc165d607edf.tar.xz | |
virtio_console: Use virtio device index to generate port name
Use virtio device index for creating unique device port names.
Current index allocation in virtio is based on a monotonically
increasing variable "index". A better handling of this is to
use device index which is allocated by ida.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/virtio_console.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 95cae778bd73..2cfd5a0575ab 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -61,9 +61,6 @@ struct ports_driver_data { /* List of all the devices we're handling */ struct list_head portdevs; - /* Number of devices this driver is handling */ - unsigned int index; - /* * This is used to keep track of the number of hvc consoles * spawned by this driver. This number is given as the first @@ -169,9 +166,6 @@ struct ports_device { /* Array of per-port IO virtqueues */ struct virtqueue **in_vqs, **out_vqs; - /* Used for numbering devices for sysfs and debugfs */ - unsigned int drv_index; - /* Major number for this device. Ports will be created as minors. */ int chr_major; }; @@ -1415,7 +1409,7 @@ static int add_port(struct ports_device *portdev, u32 id) } port->dev = device_create(pdrvdata.class, &port->portdev->vdev->dev, devt, port, "vport%up%u", - port->portdev->drv_index, id); + port->portdev->vdev->index, id); if (IS_ERR(port->dev)) { err = PTR_ERR(port->dev); dev_err(&port->portdev->vdev->dev, @@ -1470,7 +1464,7 @@ static int add_port(struct ports_device *portdev, u32 id) * inspect a port's state at any time */ sprintf(debugfs_name, "vport%up%u", - port->portdev->drv_index, id); + port->portdev->vdev->index, id); port->debugfs_file = debugfs_create_file(debugfs_name, 0444, pdrvdata.debugfs_dir, port, @@ -1961,16 +1955,12 @@ static int virtcons_probe(struct virtio_device *vdev) portdev->vdev = vdev; vdev->priv = portdev; - spin_lock_irq(&pdrvdata_lock); - portdev->drv_index = pdrvdata.index++; - spin_unlock_irq(&pdrvdata_lock); - portdev->chr_major = register_chrdev(0, "virtio-portsdev", &portdev_fops); if (portdev->chr_major < 0) { dev_err(&vdev->dev, "Error %d registering chrdev for device %u\n", - portdev->chr_major, portdev->drv_index); + portdev->chr_major, vdev->index); err = portdev->chr_major; goto free; } |