Merge drm/drm-next into drm-intel-next

Time to get back in sync...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 57 insertions, 7 deletions

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index fc86da7f1628..84f832806313 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -69,6 +69,14 @@
 #include <linux/bpf.h>
 #include <linux/bpf_trace.h>
 #include <linux/mutex.h>
+#include <linux/ieee802154.h>
+#include <linux/if_ltalk.h>
+#include <uapi/linux/if_fddi.h>
+#include <uapi/linux/if_hippi.h>
+#include <uapi/linux/if_fc.h>
+#include <net/ax25.h>
+#include <net/rose.h>
+#include <net/6lowpan.h>
 
 #include <linux/uaccess.h>
 #include <linux/proc_fs.h>
@@ -1181,8 +1189,7 @@ static int tun_xdp_xmit(struct net_device *dev, int n,
 	struct tun_struct *tun = netdev_priv(dev);
 	struct tun_file *tfile;
 	u32 numqueues;
-	int drops = 0;
-	int cnt = n;
+	int nxmit = 0;
 	int i;
 
 	if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK))
@@ -1212,9 +1219,9 @@ resample:
 
 		if (__ptr_ring_produce(&tfile->tx_ring, frame)) {
 			atomic_long_inc(&dev->tx_dropped);
-			xdp_return_frame_rx_napi(xdp);
-			drops++;
+			break;
 		}
+		nxmit++;
 	}
 	spin_unlock(&tfile->tx_ring.producer_lock);
 
@@ -1222,17 +1229,21 @@ resample:
 		__tun_xdp_flush_tfile(tfile);
 
 	rcu_read_unlock();
-	return cnt - drops;
+	return nxmit;
 }
 
 static int tun_xdp_tx(struct net_device *dev, struct xdp_buff *xdp)
 {
 	struct xdp_frame *frame = xdp_convert_buff_to_frame(xdp);
+	int nxmit;
 
 	if (unlikely(!frame))
 		return -EOVERFLOW;
 
-	return tun_xdp_xmit(dev, 1, &frame, XDP_XMIT_FLUSH);
+	nxmit = tun_xdp_xmit(dev, 1, &frame, XDP_XMIT_FLUSH);
+	if (!nxmit)
+		xdp_return_frame_rx_napi(frame);
+	return nxmit;
 }
 
 static const struct net_device_ops tap_netdev_ops = {
@@ -2919,6 +2930,45 @@ static int tun_set_ebpf(struct tun_struct *tun, struct tun_prog __rcu **prog_p,
 	return __tun_set_ebpf(tun, prog_p, prog);
 }
 
+/* Return correct value for tun->dev->addr_len based on tun->dev->type. */
+static unsigned char tun_get_addr_len(unsigned short type)
+{
+	switch (type) {
+	case ARPHRD_IP6GRE:
+	case ARPHRD_TUNNEL6:
+		return sizeof(struct in6_addr);
+	case ARPHRD_IPGRE:
+	case ARPHRD_TUNNEL:
+	case ARPHRD_SIT:
+		return 4;
+	case ARPHRD_ETHER:
+		return ETH_ALEN;
+	case ARPHRD_IEEE802154:
+	case ARPHRD_IEEE802154_MONITOR:
+		return IEEE802154_EXTENDED_ADDR_LEN;
+	case ARPHRD_PHONET_PIPE:
+	case ARPHRD_PPP:
+	case ARPHRD_NONE:
+		return 0;
+	case ARPHRD_6LOWPAN:
+		return EUI64_ADDR_LEN;
+	case ARPHRD_FDDI:
+		return FDDI_K_ALEN;
+	case ARPHRD_HIPPI:
+		return HIPPI_ALEN;
+	case ARPHRD_IEEE802:
+		return FC_ALEN;
+	case ARPHRD_ROSE:
+		return ROSE_ADDR_LEN;
+	case ARPHRD_NETROM:
+		return AX25_ADDR_LEN;
+	case ARPHRD_LOCALTLK:
+		return LTALK_ALEN;
+	default:
+		return 0;
+	}
+}
+
 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 			    unsigned long arg, int ifreq_len)
 {
@@ -2958,7 +3008,6 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 		return open_related_ns(&net->ns, get_net_ns);
 	}
 
-	ret = 0;
 	rtnl_lock();
 
 	tun = tun_get(tfile);
@@ -3082,6 +3131,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 				break;
 			}
 			tun->dev->type = (int) arg;
+			tun->dev->addr_len = tun_get_addr_len(tun->dev->type);
 			netif_info(tun, drv, tun->dev, "linktype set to %d\n",
 				   tun->dev->type);
 			call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE,