From: Jason Wang <jasowang@redhat.com>
Date: Fri, 14 Jul 2017 12:08:18 +0000 (+0800)
Subject: virtio-net: fix offload ctrl endian
X-Git-Tag: v2.10.0-rc0~50^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=189ae6bb5ce1f5a322f8691d00fe942ba43dd601;p=thirdparty%2Fqemu.git

virtio-net: fix offload ctrl endian

Spec said offloads should be le64, so use virtio_ldq_p() to guarantee
valid endian.

Fixes: 644c98587d4c ("virtio-net: dynamic network offloads configuration")
Cc: qemu-stable@nongnu.org
Cc: Dmitry Fleytman <dfleytma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 657d099c544..148071a3969 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -758,6 +758,8 @@ static int virtio_net_handle_offloads(VirtIONet *n, uint8_t cmd,
     if (cmd == VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET) {
         uint64_t supported_offloads;
 
+        offloads = virtio_ldq_p(vdev, &offloads);
+
         if (!n->has_vnet_hdr) {
             return VIRTIO_NET_ERR;
         }