From 704098fc478c0dbdd6144e64c8de2ff19d010dda Mon Sep 17 00:00:00 2001
From: Zhihong Wang <zhihong.wang@intel.com>
Date: Wed, 31 Jan 2018 09:20:57 -0500
Subject: [PATCH] vhost: fix build with old kernels

This patch fixes compile failure with old kernels which have no
VIRTIO_F_ANY_LAYOUT defined.

Fixes: 5a8bb6e9020f ("vhost: claim to support any layout feature")

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
 lib/librte_vhost/vhost.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index ba805843ba..646aad30d9 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -130,6 +130,10 @@ struct vhost_virtqueue {
  #define VIRTIO_NET_F_MTU 3
 #endif
 
+#ifndef VIRTIO_F_ANY_LAYOUT
+ #define VIRTIO_F_ANY_LAYOUT		27
+#endif
+
 /* Declare IOMMU related bits for older kernels */
 #ifndef VIRTIO_F_IOMMU_PLATFORM
 
-- 
2.20.1