virtio-net: set queues after driver_ok

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[ Upstream commit 51b813176f ]

Commit 25266128fe ("virtio-net: fix race between set queues and
probe") tries to fix the race between set queues and probe by calling
_virtnet_set_queues() before DRIVER_OK is set. This violates virtio
spec. Fixing this by setting queues after virtio_device_ready().

Note that rtnl needs to be held for userspace requests to change the
number of queues. So we are serialized in this way.

Fixes: 25266128fe ("virtio-net: fix race between set queues and probe")
Reported-by: Dragos Tatulea <dtatulea@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Jason Wang 2023-08-09 23:12:56 -04:00 • committed by Greg Kroah-Hartman

parent c8ce01aad1

commit 3c8608fb8d

1 changed files with 2 additions and 2 deletions

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drivers/net/virtio_net.c

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