When dev is set to DOWN state, napi has been disabled, if we modify the
ring size at this time, we should not call napi_disable() again, which
will cause stuck.
And all operations are under the protection of rtnl_lock, so there is no
need to consider concurrency issues.
PS.
Hi Michael, I don't know which way is more convenient for you, so I split the
commit into two commits, so you can fixup to my previous commit:
virtio_net: support tx queue resize
virtio_net: support rx queue resize
Xuan Zhuo (2):
virtio_net: fix for stuck when change rx ring size with dev down
virtio_net: fix for stuck when change tx ring size with dev down
drivers/net/virtio_net.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--
2.31.0
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