[PATCH xenvif 1/4] Fix an IsZeroMemory() ASSERTion failure

[Paul Durrant <paul@xxxxxxx>]

From: Paul Durrant <pdurrant@xxxxxxxxxx>

The TargetProcessor field of the XENVIF_RECEIVER_RING structure is not being
cleared and hence may be non-zero when the buffer is checked. This patch
rectifies the situation.

Fixes: eb83dbd5162d ("Windows PV drivers fail to set up RSS when vCPU index >= 
8")
Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
---
 src/xenvif/receiver.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/xenvif/receiver.c b/src/xenvif/receiver.c
index 505505ee886e..d4703b9bd322 100644
--- a/src/xenvif/receiver.c
+++ b/src/xenvif/receiver.c
@@ -2963,6 +2963,8 @@ __ReceiverRingTeardown(
     Ring->BackfillSize = 0;
     Ring->OffloadOptions.Value = 0;
 
+    RtlZeroMemory(&Ring->TargetProcessor, sizeof (PROCESSOR_NUMBER));
+
     KeFlushQueuedDpcs();
     RtlZeroMemory(&Ring->QueueDpc, sizeof (KDPC));
 
-- 
2.17.1