From b3b32c94133621c9ba7e4c8f29ec7533f2f4d8ec Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:19 +1030
Subject: [PATCH] virtio_ring: add new function virtqueue_is_broken()

Add new function virtqueue_is_broken(). Callers of virtqueue_get_buf()
should check for a broken queue.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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