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authorMichael S. Tsirkin <mst@redhat.com>2015-10-14 12:11:27 +0300
committerMichael S. Tsirkin <mst@redhat.com>2015-10-21 09:24:44 +0300
commit052bd52fa978d3f04bc476137ad6e1b9a697f9bd (patch)
tree99c7c97494d6306d4e817a81231b4990bc021013 /net
parent794e8f301a17953efa78ab7538019ec43c59e82a (diff)
net: don't set native endianness
commit 5be7d9f1b1452613b95c6ba70b8d7ad3d0797991 vhost-net: tell tap backend about the vnet endianness makes vhost net always try to set LE - even if that matches the native endian-ness. This makes it fail on older kernels on x86 without TUNSETVNETLE support. To fix, make qemu_set_vnet_le/qemu_set_vnet_be skip the ioctl if it matches the host endian-ness. Reported-by: Marcel Apfelbaum <marcel@redhat.com> Cc: Greg Kurz <gkurz@linux.vnet.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Diffstat (limited to 'net')
-rw-r--r--net/net.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/net.c b/net/net.c
index 39af8930b4..3c68f3faa8 100644
--- a/net/net.c
+++ b/net/net.c
@@ -524,20 +524,28 @@ void qemu_set_vnet_hdr_len(NetClientState *nc, int len)
int qemu_set_vnet_le(NetClientState *nc, bool is_le)
{
+#ifdef HOST_WORDS_BIGENDIAN
if (!nc || !nc->info->set_vnet_le) {
return -ENOSYS;
}
return nc->info->set_vnet_le(nc, is_le);
+#else
+ return 0;
+#endif
}
int qemu_set_vnet_be(NetClientState *nc, bool is_be)
{
+#ifdef HOST_WORDS_BIGENDIAN
+ return 0;
+#else
if (!nc || !nc->info->set_vnet_be) {
return -ENOSYS;
}
return nc->info->set_vnet_be(nc, is_be);
+#endif
}
int qemu_can_send_packet(NetClientState *sender)