From da77adbaf619c4d170cb42d769145ad1803fbad9 Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 9 Aug 2021 18:09:56 +0100 Subject: [PATCH] audio: Never send migration section MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The audio migration vmstate is empty, and always has been; we can't just remove it though because an old qemu might send it us. Changes with -audiodev now mean it's sometimes created when it didn't used to be, and can confuse migration to old qemu. Change it so that vmstate_audio is never sent; if it's received it should still be accepted, and old qemu's shouldn't be too upset if it's missing. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Daniel P. Berrangé Tested-by: Daniel P. Berrangé Message-Id: <20210809170956.78536-1-dgilbert@redhat.com> Signed-off-by: Gerd Hoffmann --- audio/audio.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/audio/audio.c b/audio/audio.c index 59453ef856..54a153c0ef 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -1622,10 +1622,20 @@ void audio_cleanup(void) } } +static bool vmstate_audio_needed(void *opaque) +{ + /* + * Never needed, this vmstate only exists in case + * an old qemu sends it to us. + */ + return false; +} + static const VMStateDescription vmstate_audio = { .name = "audio", .version_id = 1, .minimum_version_id = 1, + .needed = vmstate_audio_needed, .fields = (VMStateField[]) { VMSTATE_END_OF_LIST() }