balloon is the only driver using legacy_only ATM.
It turns out, it's easier to just make balloon support virtio 1.0
endian-ness and drop the flag from core.
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
include/linux/virtio.h | 2 --
drivers/virtio/virtio.c | 4 ----
drivers/virtio/virtio_balloon.c | 1 -
3 files changed, 7 deletions(-)
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 2bbf626..f70411e 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -132,7 +132,6 @@ int virtio_device_restore(struct virtio_device *dev);
* @feature_table_size: number of entries in the feature table array.
* @feature_table_legacy: same as feature_table but when working in legacy mode.
* @feature_table_size_legacy: number of entries in feature table legacy array.
- * @legacy_only: driver does not support virtio 1.0.
* @probe: the function to call when a device is found. Returns 0 or -errno.
* @remove: the function to call when a device is removed.
* @config_changed: optional function to call when the device configuration
@@ -145,7 +144,6 @@ struct virtio_driver {
unsigned int feature_table_size;
const unsigned int *feature_table_legacy;
unsigned int feature_table_size_legacy;
- bool legacy_only;
int (*probe)(struct virtio_device *dev);
void (*scan)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index fa6b75d..2e836d8 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -197,10 +197,6 @@ static int virtio_dev_probe(struct device *_d)
driver_features_legacy = driver_features;
}
- /* Detect legacy-only drivers and disable VIRTIO_F_VERSION_1. */
- if (drv->legacy_only)
- device_features &= ~(1ULL << VIRTIO_F_VERSION_1);
-
if (device_features & (1ULL << VIRTIO_F_VERSION_1))
dev->features = driver_features & device_features;
else
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 721e32f..fed3709 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -518,7 +518,6 @@ static unsigned int features[] = {
};
static struct virtio_driver virtio_balloon_driver = {
- .legacy_only = true,
.feature_table = features,
.feature_table_size = ARRAY_SIZE(features),
.driver.name = KBUILD_MODNAME,
--
MST
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