tree ad419a90173f22a44a040ab17452f1641723f79f
parent 271b2224d42f88870e6b060924ee374871c131fc
author Dexuan Cui <decui@microsoft.com> 1567724478 +0000
committer Sasha Levin <sashal@kernel.org> 1567795964 -0400

Drivers: hv: vmbus: Ignore the offers when resuming from hibernation

When the VM resumes, the host re-sends the offers. We should not add the
offers to the global vmbus_connection.chn_list again.

This patch assumes the RELIDs of the channels don't change across
hibernation. Actually this is not always true, especially in the case of
NIC SR-IOV the VF vmbus device's RELID sometimes can change. A later patch
will address this issue by mapping the new offers to the old channels and
fixing up the old channels, if necessary.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>