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Commit 1cf8e410 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by David S. Miller
Browse files

tun: drop broken IFF_VNET_LE 



Use TUNSETVNETLE/TUNGETVNETLE instead.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5eea84f4

drivers/net/tun.c

+23 −3
Original line number Diff line number Diff line
@@ -110,9 +110,11 @@ do { \ 
 * overload it to mean fasync when stored there.

 */

#define TUN_FASYNC	IFF_ATTACH_QUEUE

/* High bits in flags field are unused. */

#define TUN_VNET_LE     0x80000000



#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | \

		      IFF_VNET_LE | IFF_MULTI_QUEUE)

		      IFF_MULTI_QUEUE)

#define GOODCOPY_LEN 128



#define FLT_EXACT_COUNT 8
@@ -208,12 +210,12 @@ struct tun_struct { 


static inline u16 tun16_to_cpu(struct tun_struct *tun, __virtio16 val)

{

	return __virtio16_to_cpu(tun->flags & IFF_VNET_LE, val);

	return __virtio16_to_cpu(tun->flags & TUN_VNET_LE, val);

}



static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val)

{

	return __cpu_to_virtio16(tun->flags & IFF_VNET_LE, val);

	return __cpu_to_virtio16(tun->flags & TUN_VNET_LE, val);

}



static inline u32 tun_hashfn(u32 rxhash)
@@ -1843,6 +1845,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, 
	int sndbuf;

	int vnet_hdr_sz;

	unsigned int ifindex;

	int le;

	int ret;



	if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
@@ -2042,6 +2045,23 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, 
		tun->vnet_hdr_sz = vnet_hdr_sz;

		break;



	case TUNGETVNETLE:

		le = !!(tun->flags & TUN_VNET_LE);

		if (put_user(le, (int __user *)argp))

			ret = -EFAULT;

		break;



	case TUNSETVNETLE:

		if (get_user(le, (int __user *)argp)) {

			ret = -EFAULT;

			break;

		}

		if (le)

			tun->flags |= TUN_VNET_LE;

		else

			tun->flags &= ~TUN_VNET_LE;

		break;



	case TUNATTACHFILTER:

		/* Can be set only for TAPs */

		ret = -EINVAL;