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virtio: enhance id_matching for virtio drivers

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This patch allows a virtio driver to use VIRTIO_DEV_ANY_ID for the
device id. This will be used by a test module that can be bound to
any virtio device.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Christian Borntraeger 2009-05-26 15:46:10 +02:00 committed by Rusty Russell
parent c89e80168b
commit e335385373
2 changed files with 2 additions and 2 deletions
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2
drivers/virtio/virtio.c
View File

@ -58,7 +58,7 @@ static struct device_attribute virtio_dev_attrs[] = {
static inline int virtio_id_match(const struct virtio_device *dev,
const struct virtio_device_id *id)
{
if (id->device != dev->id.device)
if (id->device != dev->id.device && id->device != VIRTIO_DEV_ANY_ID)
return 0;
return id->vendor == VIRTIO_DEV_ANY_ID || id->vendor == dev->id.vendor;

2
scripts/mod/file2alias.c
View File

@ -641,7 +641,7 @@ static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
id->vendor = TO_NATIVE(id->vendor);
strcpy(alias, "virtio:");
ADD(alias, "d", 1, id->device);
ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device);
ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor);
add_wildcard(alias);