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From c4753f76a30a3e96c573d8e863587ba3e686348e Mon Sep 17 00:00:00 2001
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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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Date: Wed, 29 Mar 2017 10:57:23 +0200
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Subject: migcompat/rtl8139: Work around version bump
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RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Message-id: <20170329105723.7789-2-dgilbert@redhat.com>
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Patchwork-id: 74581
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O-Subject: [RHEL-7.4 qemu-kvm-rhev PATCH v2 1/1] migcompat/rtl8139: Work around version bump
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Bugzilla: 1420195
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Juan Quintela <quintela@redhat.com>
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RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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commit 46fe8bef in 2.7 bumped the version number of the rtl8139
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vmstate, and added back a field that had been lost ~7 years ago
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by 9d29cde in v0.11.
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To keep backwards compatibility we can't bump the version, so push
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the version number back down and remove the field that was added.
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The field doesn't seem to be that significant, especially since we've
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survived for 7 years with out it.
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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Rebase notes (2.9.0):
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- Patch rewritten
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(cherry picked from commit 45ca263288bcbc98f36fae68c55e1a1b55e09221)
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---
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hw/net/rtl8139.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
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index 450658c..80c62dc 100644
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--- a/hw/net/rtl8139.c
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+++ b/hw/net/rtl8139.c
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@@ -3206,7 +3206,7 @@ static void rtl8139_pre_save(void *opaque)
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static const VMStateDescription vmstate_rtl8139 = {
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.name = "rtl8139",
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- .version_id = 5,
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+ .version_id = 4,
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.minimum_version_id = 3,
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.post_load = rtl8139_post_load,
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.pre_save = rtl8139_pre_save,
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@@ -3287,7 +3287,9 @@ static const VMStateDescription vmstate_rtl8139 = {
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VMSTATE_UINT32(tally_counters.TxMCol, RTL8139State),
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VMSTATE_UINT64(tally_counters.RxOkPhy, RTL8139State),
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VMSTATE_UINT64(tally_counters.RxOkBrd, RTL8139State),
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+#if 0 /* Disabled for Red Hat Enterprise Linux bz 1420195 */
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VMSTATE_UINT32_V(tally_counters.RxOkMul, RTL8139State, 5),
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+#endif
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VMSTATE_UINT16(tally_counters.TxAbt, RTL8139State),
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VMSTATE_UINT16(tally_counters.TxUndrn, RTL8139State),
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--
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1.8.3.1
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