xen-netback: only remove 'hotplug-status' when the vif is actually destroyed

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[ Upstream commit c55f34b6ae ]

Removing 'hotplug-status' in backend_disconnected() means that it will be
removed even in the case that the frontend unilaterally disconnects (which
it is free to do at any time). The consequence of this is that, when the
frontend attempts to re-connect, the backend gets stuck in 'InitWait'
rather than moving straight to 'Connected' (which it can do because the
hotplug script has already run).
Instead, the 'hotplug-status' mode should be removed in netback_remove()
i.e. when the vif really is going away.

Fixes: 0f4558ae91 ("Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"")
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Paul Durrant 2022-09-01 12:55:54 +01:00 • committed by Greg Kroah-Hartman

parent 51705da8cf

commit 26a6d7d429

1 changed files with 1 additions and 1 deletions

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drivers/net/xen-netback/xenbus.c

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