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From:   Michael Kelley <mikelley@microsoft.com>
To:     Dexuan Cui <decui@microsoft.com>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Sasha Levin <Alexander.Levin@microsoft.com>,
        "sashal@kernel.org" <sashal@kernel.org>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        KY Srinivasan <kys@microsoft.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>
CC:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v4 08/12] Drivers: hv: vmbus: Ignore the offers when
 resuming from hibernation
Thread-Topic: [PATCH v4 08/12] Drivers: hv: vmbus: Ignore the offers when
 resuming from hibernation
Thread-Index: AQHVYe3MQlcEYNcqeUeKCjb0mmWYXqcbu9tw
Date:   Wed, 4 Sep 2019 16:43:54 +0000
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From: Dexuan Cui <decui@microsoft.com> Sent: Monday, September 2, 2019 5:23=
 PM
>=20
> When the VM resumes, the host re-sends the offers. We should not add the
> offers to the global vmbus_connection.chn_list again.
>=20
> 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 patc=
h
> will address this issue by mapping the new offers to the old channels and
> fixing up the old channels, if necessary.
>=20
> Signed-off-by: Dexuan Cui <decui@microsoft.com>
> ---
>  drivers/hv/channel_mgmt.c | 58
> ++++++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 57 insertions(+), 1 deletion(-)
>=20

Reviewed-by: Michael Kelley <mikelley@microsoft.com>