[RFC] Revert "virtio_pci: Support surprise removal of virtio pci

["Li,Rongqing" <lirongqing@baidu.com>]

Revert "virtio_pci: Support surprise removal of virtio pci device"

This reverts commit 43bb40c5b92659966bdf4bfe584fde0a3575a049.

Marking the device as broken will cause the uncompleted IO request on
virtio-blk since virtblk_done will not continue when it find the broken virtqueu
at last it will cause the failure of removal of virtio-blk device because of
uncompleted IO request

The correct fix for the issue that commit 43bb40c5b9 ("virtio_pci:
Support surprise removal of virtio pci device") tried to fix
is that virtio backend always complete the IO request as soon as possible

Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
 drivers/virtio/virtio_pci_common.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 7a55939..d60fe99 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -584,13 +584,6 @@ static void virtio_pci_remove(struct pci_dev *pci_dev)
        struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
        struct device *dev = get_device(&vp_dev->vdev.dev);

-       /*
-        * Device is marked broken on surprise removal so that virtio upper
-        * layers can abort any ongoing operation.
-        */
-       if (!pci_device_is_present(pci_dev))
-               virtio_break_device(&vp_dev->vdev);
-
        pci_disable_sriov(pci_dev);

        unregister_virtio_device(&vp_dev->vdev);
--
2.9.4