From 6fe390eed0f0aae9479f9cdbe4f4bb46c27aef63 Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Tue, 8 Mar 2016 16:51:21 +0800 Subject: [PATCH] vhost: fix build with kernel < 3.5 VIRTIO_NET_F_GUEST_ANNOUNCE is a new feature introduced since kernel v3.5. For older kernels (or more precisely, old distributions), we could simply define it manually, to fix the "macro not defined" error. Fixes: d293dac8f30e ("vhost: claim support of guest announce") Signed-off-by: Yuanhan Liu --- lib/librte_vhost/rte_virtio_net.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h index 7d1fde2025..443245dc68 100644 --- a/lib/librte_vhost/rte_virtio_net.h +++ b/lib/librte_vhost/rte_virtio_net.h @@ -97,6 +97,11 @@ struct vhost_virtqueue { struct buf_vector buf_vec[BUF_VECTOR_MAX]; /**< for scatter RX. */ } __rte_cache_aligned; +/* Old kernels have no such macro defined */ +#ifndef VIRTIO_NET_F_GUEST_ANNOUNCE + #define VIRTIO_NET_F_GUEST_ANNOUNCE 21 +#endif + /* * Make an extra wrapper for VIRTIO_NET_F_MQ and -- 2.20.1