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megasas: remove unnecessary megasas_use_msi()

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megasas overwrites user configuration when msi_init fail to flag internal msi
state, which is unsuitable. megasa_use_msi() is unnecessary, we can call
msi_uninit() directly when unrealize, even no need to call msi_enabled() first.

cc: Hannes Reinecke <hare@suse.de>
cc: Paolo Bonzini <pbonzini@redhat.com>
cc: Markus Armbruster <armbru@redhat.com>
cc: Marcel Apfelbaum <marcel@redhat.com>
cc: Michael S. Tsirkin <mst@redhat.com>

Acked-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Cao jin 2016-06-20 14:13:40 +08:00 committed by Michael S. Tsirkin
parent 1108b2f8a9
commit afea4e1410
1 changed files with 2 additions and 9 deletions
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9
hw/scsi/megasas.c
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@ -155,11 +155,6 @@ static bool megasas_use_queue64(MegasasState *s)
return s->flags & MEGASAS_MASK_USE_QUEUE64;
}
static bool megasas_use_msi(MegasasState *s)
{
return s->msi != ON_OFF_AUTO_OFF;
}
static bool megasas_use_msix(MegasasState *s)
{
return s->msix != ON_OFF_AUTO_OFF;
@ -2307,9 +2302,7 @@ static void megasas_scsi_uninit(PCIDevice *d)
if (megasas_use_msix(s)) {
msix_uninit(d, &s->mmio_io, &s->mmio_io);
}
if (megasas_use_msi(s)) {
msi_uninit(d);
}
}
static const struct SCSIBusInfo megasas_scsi_info = {
@ -2340,7 +2333,7 @@ static void megasas_scsi_realize(PCIDevice *dev, Error **errp)
/* Interrupt pin 1 */
pci_conf[PCI_INTERRUPT_PIN] = 0x01;
if (megasas_use_msi(s)) {
if (s->msi != ON_OFF_AUTO_OFF) {
ret = msi_init(dev, 0x50, 1, true, false, &err);
/* Any error other than -ENOTSUP(board's MSI support is broken)
* is a programming error */