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Message-ID: <1418732988-3535-5-git-send-email-mst@redhat.com>
Date: Tue, 16 Dec 2014 15:05:10 +0200
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
Dan Carpenter <dan.carpenter@...cle.com>,
Jason Wang <jasowang@...hat.com>,
Tom Herbert <therbert@...gle.com>,
Ben Hutchings <ben@...adent.org.uk>,
Vlad Yasevich <vyasevich@...il.com>,
Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 4/5] macvtap: drop broken IFF_VNET_LE
Use TUNSETVNETLE/TUNGETVNETLE instead.
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---
drivers/net/macvtap.c | 23 ++++++++++++++++++++---
1 file changed, 20 insertions(+), 3 deletions(-)
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index de88285..f1f0df1 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -45,16 +45,18 @@ struct macvtap_queue {
struct list_head next;
};
-#define MACVTAP_FEATURES (IFF_VNET_HDR | IFF_VNET_LE | IFF_MULTI_QUEUE)
+#define MACVTAP_FEATURES (IFF_VNET_HDR | IFF_MULTI_QUEUE)
+
+#define MACVTAP_VNET_LE 0x80000000
static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val)
{
- return __virtio16_to_cpu(q->flags & IFF_VNET_LE, val);
+ return __virtio16_to_cpu(q->flags & MACVTAP_VNET_LE, val);
}
static inline __virtio16 cpu_to_macvtap16(struct macvtap_queue *q, u16 val)
{
- return __cpu_to_virtio16(q->flags & IFF_VNET_LE, val);
+ return __cpu_to_virtio16(q->flags & MACVTAP_VNET_LE, val);
}
static struct proto macvtap_proto = {
@@ -1082,6 +1084,21 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
q->vnet_hdr_sz = s;
return 0;
+ case TUNGETVNETLE:
+ s = !!(q->flags & MACVTAP_VNET_LE);
+ if (put_user(s, sp))
+ return -EFAULT;
+ return 0;
+
+ case TUNSETVNETLE:
+ if (get_user(s, sp))
+ return -EFAULT;
+ if (s)
+ q->flags |= MACVTAP_VNET_LE;
+ else
+ q->flags &= ~MACVTAP_VNET_LE;
+ return 0;
+
case TUNSETOFFLOAD:
/* let the user check for future flags */
if (arg & ~(TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 |
--
MST
--
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