Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NET]: Require CAP_NET_ADMIN to create tuntap devices.
  [NET]: fix net-core kernel-doc
  [TCP]: Move inclusion of <linux/dmaengine.h> to correct place in <linux/tcp.h>
  [IPSEC]: Handle GSO packets
  [NET]: Added GSO toggle
  [NET]: Add software TSOv4
  [NET]: Add generic segmentation offload
  [NET]: Merge TSO/UFO fields in sk_buff
  [NET]: Prevent transmission after dev_deactivate
  [IPV6] ADDRCONF: Fix default source address selection without CONFIG_IPV6_PRIVACY
  [IPV6]: Fix source address selection.
  [NET]: Avoid allocating skb in skb_pad

46 files changed, 78 insertions, 119 deletions

diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c
index 1b1cb0026072..157eda573925 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -1031,8 +1031,7 @@ static int mc32_send_packet(struct sk_buff *skb, struct net_device *dev)
                 return 1;
         }
 
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (skb == NULL) {
+        if (skb_padto(skb, ETH_ZLEN)) {
                 netif_wake_queue(dev);
                 return 0;
         }
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index a26077a175ad..0cdc830449d8 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -797,7 +797,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
         entry = cp->tx_head;
         eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
         if (dev->features & NETIF_F_TSO)
-                mss = skb_shinfo(skb)->tso_size;
+                mss = skb_shinfo(skb)->gso_size;
 
         if (skb_shinfo(skb)->nr_frags == 0) {
                 struct cp_desc *txd = &cp->tx_ring[entry];
diff --git a/drivers/net/82596.c b/drivers/net/82596.c
index da0c878dcba8..8a9f7d61b9b1 100644
--- a/drivers/net/82596.c
+++ b/drivers/net/82596.c
@@ -1070,8 +1070,7 @@ static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
                                 skb->len, (unsigned int)skb->data));
 
         if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c
index 79bb56b8dcef..71165ac0257a 100644
--- a/drivers/net/a2065.c
+++ b/drivers/net/a2065.c
@@ -573,8 +573,7 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
         
         if (len < ETH_ZLEN) {
                 len = ETH_ZLEN;
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
         }
 
diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c
index d1b6b1f794e2..a9bb7a4aff98 100644
--- a/drivers/net/ariadne.c
+++ b/drivers/net/ariadne.c
@@ -607,8 +607,7 @@ static int ariadne_start_xmit(struct sk_buff *skb, struct net_device *dev)
     /* FIXME: is the 79C960 new enough to do its own padding right ? */
     if (skb->len < ETH_ZLEN)
     {
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (skb == NULL)
+        if (skb_padto(skb, ETH_ZLEN))
             return 0;
         len = ETH_ZLEN;
     }
diff --git a/drivers/net/arm/ether1.c b/drivers/net/arm/ether1.c
index 36475eb2727f..312955d07b28 100644
--- a/drivers/net/arm/ether1.c
+++ b/drivers/net/arm/ether1.c
@@ -700,8 +700,7 @@ ether1_sendpacket (struct sk_buff *skb, struct net_device *dev)
         }
 
         if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         goto out;
         }
 
diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c
index f1d5b1027ff7..081074180e62 100644
--- a/drivers/net/arm/ether3.c
+++ b/drivers/net/arm/ether3.c
@@ -518,8 +518,7 @@ ether3_sendpacket(struct sk_buff *skb, struct net_device *dev)
 
         length = (length + 1) & ~1;
         if (length != skb->len) {
-                skb = skb_padto(skb, length);
-                if (skb == NULL)
+                if (skb_padto(skb, length))
                         goto out;
         }
 
diff --git a/drivers/net/atarilance.c b/drivers/net/atarilance.c
index 442b2cbeb58a..91783a8008be 100644
--- a/drivers/net/atarilance.c
+++ b/drivers/net/atarilance.c
@@ -804,8 +804,7 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
                 ++len;
                 
         if (len > skb->len) {
-                skb = skb_padto(skb, len);
-                if (skb == NULL)
+                if (skb_padto(skb, len))
                         return 0;
         }
                 
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 702d546567ad..7635736cc791 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -1640,7 +1640,7 @@ bnx2_tx_int(struct bnx2 *bp)
                 skb = tx_buf->skb;
 #ifdef BCM_TSO 
                 /* partial BD completions possible with TSO packets */
-                if (skb_shinfo(skb)->tso_size) {
+                if (skb_shinfo(skb)->gso_size) {
                         u16 last_idx, last_ring_idx;
 
                         last_idx = sw_cons +
@@ -4428,7 +4428,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         (TX_BD_FLAGS_VLAN_TAG | (vlan_tx_tag_get(skb) << 16));
         }
 #ifdef BCM_TSO 
-        if ((mss = skb_shinfo(skb)->tso_size) &&
+        if ((mss = skb_shinfo(skb)->gso_size) &&
                 (skb->len > (bp->dev->mtu + ETH_HLEN))) {
                 u32 tcp_opt_len, ip_tcp_len;
 
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 39f36aa05aa8..565a54f1d06a 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2915,8 +2915,7 @@ static int cas_start_xmit(struct sk_buff *skb, struct net_device *dev)
          */
         static int ring; 
 
-        skb = skb_padto(skb, cp->min_frame_size);
-        if (!skb)
+        if (skb_padto(skb, cp->min_frame_size))
                 return 0;
 
         /* XXX: we need some higher-level QoS hooks to steer packets to
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 4391bf4bf573..53efff6da784 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1418,7 +1418,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
         struct cpl_tx_pkt *cpl;
 
 #ifdef NETIF_F_TSO
-        if (skb_shinfo(skb)->tso_size) {
+        if (skb_shinfo(skb)->gso_size) {
                 int eth_type;
                 struct cpl_tx_pkt_lso *hdr;
 
@@ -1433,7 +1433,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 hdr->ip_hdr_words = skb->nh.iph->ihl;
                 hdr->tcp_hdr_words = skb->h.th->doff;
                 hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type,
-                                                skb_shinfo(skb)->tso_size));
+                                                skb_shinfo(skb)->gso_size));
                 hdr->len = htonl(skb->len - sizeof(*hdr));
                 cpl = (struct cpl_tx_pkt *)hdr;
                 sge->stats.tx_lso_pkts++;
diff --git a/drivers/net/declance.c b/drivers/net/declance.c
index f130bdab3fd3..d3d958e7ac56 100644
--- a/drivers/net/declance.c
+++ b/drivers/net/declance.c
@@ -885,8 +885,7 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
         len = skblen;
         
         if (len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 len = ETH_ZLEN;
         }
diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index 0941d40f046f..e946c43d3b10 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -938,11 +938,8 @@ static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev)
         if (skb->len < 1)
                 goto out;
 
-        if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
-                        goto out;
-        }
+        if (skb_padto(skb, ETH_ZLEN))
+                goto out;
         
         netif_stop_queue(dev);
 
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index a373ccb308d8..32b7d444b374 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2394,7 +2394,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
         uint8_t ipcss, ipcso, tucss, tucso, hdr_len;
         int err;
 
-        if (skb_shinfo(skb)->tso_size) {
+        if (skb_shinfo(skb)->gso_size) {
                 if (skb_header_cloned(skb)) {
                         err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
                         if (err)
@@ -2402,7 +2402,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
                 }
 
                 hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
-                mss = skb_shinfo(skb)->tso_size;
+                mss = skb_shinfo(skb)->gso_size;
                 if (skb->protocol == htons(ETH_P_IP)) {
                         skb->nh.iph->tot_len = 0;
                         skb->nh.iph->check = 0;
@@ -2519,7 +2519,7 @@ e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
                  * tso gets written back prematurely before the data is fully
                  * DMA'd to the controller */
                 if (!skb->data_len && tx_ring->last_tx_tso &&
-                    !skb_shinfo(skb)->tso_size) {
+                    !skb_shinfo(skb)->gso_size) {
                         tx_ring->last_tx_tso = 0;
                         size -= 4;
                 }
@@ -2757,7 +2757,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
         }
 
 #ifdef NETIF_F_TSO
-        mss = skb_shinfo(skb)->tso_size;
+        mss = skb_shinfo(skb)->gso_size;
         /* The controller does a simple calculation to
          * make sure there is enough room in the FIFO before
          * initiating the DMA for each buffer.  The calc is:
@@ -2807,7 +2807,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 #ifdef NETIF_F_TSO
         /* Controller Erratum workaround */
         if (!skb->data_len && tx_ring->last_tx_tso &&
-            !skb_shinfo(skb)->tso_size)
+            !skb_shinfo(skb)->gso_size)
                 count++;
 #endif
 
diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index a806dfe54d23..e70f172699db 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -1154,8 +1154,7 @@ static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
                 printk(KERN_DEBUG  "%s: entering eepro_send_packet routine.\n", dev->name);
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c
index 82bd356e4f3a..a74b20715755 100644
--- a/drivers/net/eexpress.c
+++ b/drivers/net/eexpress.c
@@ -677,8 +677,7 @@ static int eexp_xmit(struct sk_buff *buf, struct net_device *dev)
 #endif
 
         if (buf->len < ETH_ZLEN) {
-                buf = skb_padto(buf, ETH_ZLEN);
-                if (buf == NULL)
+                if (skb_padto(buf, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c
index 8d680ce600d7..724d7dc35fa3 100644
--- a/drivers/net/epic100.c
+++ b/drivers/net/epic100.c
@@ -1027,11 +1027,8 @@ static int epic_start_xmit(struct sk_buff *skb, struct net_device *dev)
         u32 ctrl_word;
         unsigned long flags;
 
-        if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
-                        return 0;
-        }
+        if (skb_padto(skb, ETH_ZLEN))
+                return 0;
 
         /* Caution: the write order is important here, set the field with the
            "ownership" bit last. */
diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c
index b67545be2caa..4bf76f86d8e9 100644
--- a/drivers/net/eth16i.c
+++ b/drivers/net/eth16i.c
@@ -1064,8 +1064,7 @@ static int eth16i_tx(struct sk_buff *skb, struct net_device *dev)
         unsigned long flags;
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 191383d461d7..21be4fa071b5 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -1495,8 +1495,8 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
         np->tx_skbuff[nr] = skb;
 
 #ifdef NETIF_F_TSO
-        if (skb_shinfo(skb)->tso_size)
-                tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->tso_size << NV_TX2_TSO_SHIFT);
+        if (skb_shinfo(skb)->gso_size)
+                tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
         else
 #endif
         tx_flags_extra = (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0);
diff --git a/drivers/net/hp100.c b/drivers/net/hp100.c
index 247c8ca86033..dd1dc32dc98d 100644
--- a/drivers/net/hp100.c
+++ b/drivers/net/hp100.c
@@ -1487,11 +1487,8 @@ static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev)
         if (skb->len <= 0)
                 return 0;
                 
-        if (skb->len < ETH_ZLEN && lp->chip == HP100_CHIPID_SHASTA) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
-                        return 0;
-        }
+        if (lp->chip == HP100_CHIPID_SHASTA && skb_padto(skb, ETH_ZLEN))
+                return 0;
 
         /* Get Tx ring tail pointer */
         if (lp->txrtail->next == lp->txrhead) {
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 57006fb8840e..8bb32f946993 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1173,7 +1173,7 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
         uint16_t ipcse, tucse, mss;
         int err;
 
-        if(likely(skb_shinfo(skb)->tso_size)) {
+        if(likely(skb_shinfo(skb)->gso_size)) {
                 if (skb_header_cloned(skb)) {
                         err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
                         if (err)
@@ -1181,7 +1181,7 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
                 }
 
                 hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
-                mss = skb_shinfo(skb)->tso_size;
+                mss = skb_shinfo(skb)->gso_size;
                 skb->nh.iph->tot_len = 0;
                 skb->nh.iph->check = 0;
                 skb->h.th->check = ~csum_tcpudp_magic(skb->nh.iph->saddr,
diff --git a/drivers/net/lance.c b/drivers/net/lance.c
index bb5ad479210b..c1c3452c90ca 100644
--- a/drivers/net/lance.c
+++ b/drivers/net/lance.c
@@ -968,8 +968,7 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
         /* The old LANCE chips doesn't automatically pad buffers to min. size. */
         if (chip_table[lp->chip_version].flags & LANCE_MUST_PAD) {
                 if (skb->len < ETH_ZLEN) {
-                        skb = skb_padto(skb, ETH_ZLEN);
-                        if (skb == NULL)
+                        if (skb_padto(skb, ETH_ZLEN))
                                 goto out;
                         lp->tx_ring[entry].length = -ETH_ZLEN;
                 }
diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 957888de3d7e..1ab09447baa5 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -1083,8 +1083,7 @@ static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
                                 skb->len, skb->data));
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index b79d6e8d3045..43fef7de8cb9 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -74,7 +74,7 @@ static void emulate_large_send_offload(struct sk_buff *skb)
         struct iphdr *iph = skb->nh.iph;
         struct tcphdr *th = (struct tcphdr*)(skb->nh.raw + (iph->ihl * 4));
         unsigned int doffset = (iph->ihl + th->doff) * 4;
-        unsigned int mtu = skb_shinfo(skb)->tso_size + doffset;
+        unsigned int mtu = skb_shinfo(skb)->gso_size + doffset;
         unsigned int offset = 0;
         u32 seq = ntohl(th->seq);
         u16 id  = ntohs(iph->id);
@@ -139,7 +139,7 @@ static int loopback_xmit(struct sk_buff *skb, struct net_device *dev)
 #endif
 
 #ifdef LOOPBACK_TSO
-        if (skb_shinfo(skb)->tso_size) {
+        if (skb_shinfo(skb)->gso_size) {
                 BUG_ON(skb->protocol != htons(ETH_P_IP));
                 BUG_ON(skb->nh.iph->protocol != IPPROTO_TCP);
 
diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c
index 94d5ea1ce8bd..bf3f343ae715 100644
--- a/drivers/net/lp486e.c
+++ b/drivers/net/lp486e.c
@@ -877,8 +877,7 @@ static int i596_start_xmit (struct sk_buff *skb, struct net_device *dev) {
         length = skb->len;
         
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 5a74f63618bc..dbdf189436fa 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1879,7 +1879,7 @@ again:
 
 #ifdef NETIF_F_TSO
         if (skb->len > (dev->mtu + ETH_HLEN)) {
-                mss = skb_shinfo(skb)->tso_size;
+                mss = skb_shinfo(skb)->gso_size;
                 if (mss != 0)
                         max_segments = MYRI10GE_MAX_SEND_DESC_TSO;
         }
@@ -1939,8 +1939,7 @@ again:
 
                 /* pad frames to at least ETH_ZLEN bytes */
                 if (unlikely(skb->len < ETH_ZLEN)) {
-                        skb = skb_padto(skb, ETH_ZLEN);
-                        if (skb == NULL) {
+                        if (skb_padto(skb, ETH_ZLEN)) {
                                 /* The packet is gone, so we must
                                  * return 0 */
                                 mgp->stats.tx_dropped += 1;
@@ -2113,7 +2112,7 @@ abort_linearize:
                 }
                 idx = (idx + 1) & tx->mask;
         } while (idx != last_idx);
-        if (skb_shinfo(skb)->tso_size) {
+        if (skb_shinfo(skb)->gso_size) {
                 printk(KERN_ERR
                        "myri10ge: %s: TSO but wanted to linearize?!?!?\n",
                        mgp->dev->name);
diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c
index 09b11761cdfa..ea93b8f18605 100644
--- a/drivers/net/pcmcia/fmvj18x_cs.c
+++ b/drivers/net/pcmcia/fmvj18x_cs.c
@@ -831,8 +831,7 @@ static int fjn_start_xmit(struct sk_buff *skb, struct net_device *dev)
     
     if (length < ETH_ZLEN)
     {
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (skb == NULL)
+        if (skb_padto(skb, ETH_ZLEN))
                 return 0;
         length = ETH_ZLEN;
     }
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index e80d1e3aec68..9bae77ce1314 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -1374,8 +1374,7 @@ do_start_xmit(struct sk_buff *skb, struct net_device *dev)
      */
     if (pktlen < ETH_ZLEN)
     {
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (skb == NULL)
+        if (skb_padto(skb, ETH_ZLEN))
                 return 0;
         pktlen = ETH_ZLEN;
     }
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 9945cc6b8d90..12d1cb289bb0 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2172,7 +2172,7 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
 {
         if (dev->features & NETIF_F_TSO) {
-                u32 mss = skb_shinfo(skb)->tso_size;
+                u32 mss = skb_shinfo(skb)->gso_size;
 
                 if (mss)
                         return LargeSend | ((mss & MSSMask) << MSSShift);
@@ -2222,8 +2222,7 @@ static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 len = skb->len;
 
                 if (unlikely(len < ETH_ZLEN)) {
-                        skb = skb_padto(skb, ETH_ZLEN);
-                        if (!skb)
+                        if (skb_padto(skb, ETH_ZLEN))
                                 goto err_update_stats;
                         len = ETH_ZLEN;
                 }
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 11daed495b97..3defe5d4f7d3 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -3959,8 +3959,8 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
         txdp->Control_1 = 0;
         txdp->Control_2 = 0;
 #ifdef NETIF_F_TSO
-        mss = skb_shinfo(skb)->tso_size;
-        if (mss) {
+        mss = skb_shinfo(skb)->gso_size;
+        if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV4) {
                 txdp->Control_1 |= TXD_TCP_LSO_EN;
                 txdp->Control_1 |= TXD_TCP_LSO_MSS(mss);
         }
@@ -3980,10 +3980,10 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
         }
 
         frg_len = skb->len - skb->data_len;
-        if (skb_shinfo(skb)->ufo_size) {
+        if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4) {
                 int ufo_size;
 
-                ufo_size = skb_shinfo(skb)->ufo_size;
+                ufo_size = skb_shinfo(skb)->gso_size;
                 ufo_size &= ~7;
                 txdp->Control_1 |= TXD_UFO_EN;
                 txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
@@ -4009,7 +4009,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
         txdp->Host_Control = (unsigned long) skb;
         txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
 
-        if (skb_shinfo(skb)->ufo_size)
+        if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
                 txdp->Control_1 |= TXD_UFO_EN;
 
         frg_cnt = skb_shinfo(skb)->nr_frags;
@@ -4024,12 +4024,12 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
                     (sp->pdev, frag->page, frag->page_offset,
                      frag->size, PCI_DMA_TODEVICE);
                 txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
-                if (skb_shinfo(skb)->ufo_size)
+                if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
                         txdp->Control_1 |= TXD_UFO_EN;
         }
         txdp->Control_1 |= TXD_GATHER_CODE_LAST;
 
-        if (skb_shinfo(skb)->ufo_size)
+        if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
                 frg_cnt++; /* as Txd0 was used for inband header */
 
         tx_fifo = mac_control->tx_FIFO_start[queue];
@@ -4043,7 +4043,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
         if (mss)
                 val64 |= TX_FIFO_SPECIAL_FUNC;
 #endif
-        if (skb_shinfo(skb)->ufo_size)
+        if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
                 val64 |= TX_FIFO_SPECIAL_FUNC;
         writeq(val64, &tx_fifo->List_Control);
 
diff --git a/drivers/net/seeq8005.c b/drivers/net/seeq8005.c
index bcef03feb2fc..efd0f235020f 100644
--- a/drivers/net/seeq8005.c
+++ b/drivers/net/seeq8005.c
@@ -396,8 +396,7 @@ static int seeq8005_send_packet(struct sk_buff *skb, struct net_device *dev)
         unsigned char *buf;
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c
index 31dd3f036fa8..df39f3447655 100644
--- a/drivers/net/sis190.c
+++ b/drivers/net/sis190.c
@@ -1156,8 +1156,7 @@ static int sis190_start_xmit(struct sk_buff *skb, struct net_device *dev)
         dma_addr_t mapping;
 
         if (unlikely(skb->len < ETH_ZLEN)) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (!skb) {
+                if (skb_padto(skb, ETH_ZLEN)) {
                         tp->stats.tx_dropped++;
                         goto out;
                 }
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c
index 38a26df4095f..f3efbd177ae7 100644
--- a/drivers/net/sk98lin/skge.c
+++ b/drivers/net/sk98lin/skge.c
@@ -1525,7 +1525,7 @@ struct sk_buff	*pMessage)	/* pointer to send-message              */
         ** This is to resolve faulty padding by the HW with 0xaa bytes.
         */
         if (BytesSend < C_LEN_ETHERNET_MINSIZE) {
-                if ((pMessage = skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) == NULL) {
+                if (skb_padto(pMessage, C_LEN_ETHERNET_MINSIZE)) {
                         spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
                         return 0;
                 }
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 536dd1cf7f79..19a4a16055dc 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2310,8 +2310,7 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
         u64 map;
         unsigned long flags;
 
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (!skb)
+        if (skb_padto(skb, ETH_ZLEN))
                 return NETDEV_TX_OK;
 
         if (!spin_trylock_irqsave(&skge->tx_lock, flags))
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index fba1e4d4d83d..d3577871be28 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1160,7 +1160,7 @@ static unsigned tx_le_req(const struct sk_buff *skb)
         count = sizeof(dma_addr_t) / sizeof(u32);
         count += skb_shinfo(skb)->nr_frags * count;
 
-        if (skb_shinfo(skb)->tso_size)
+        if (skb_shinfo(skb)->gso_size)
                 ++count;
 
         if (skb->ip_summed == CHECKSUM_HW)
@@ -1232,7 +1232,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
         }
 
         /* Check for TCP Segmentation Offload */
-        mss = skb_shinfo(skb)->tso_size;
+        mss = skb_shinfo(skb)->gso_size;
         if (mss != 0) {
                 /* just drop the packet if non-linear expansion fails */
                 if (skb_header_cloned(skb) &&
diff --git a/drivers/net/smc9194.c b/drivers/net/smc9194.c
index 6cf16f322ad5..8b0321f1976c 100644
--- a/drivers/net/smc9194.c
+++ b/drivers/net/smc9194.c
@@ -523,8 +523,7 @@ static int smc_wait_to_send_packet( struct sk_buff * skb, struct net_device * de
         length = skb->len;
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL) {
+                if (skb_padto(skb, ETH_ZLEN)) {
                         netif_wake_queue(dev);
                         return 0;
                 }
diff --git a/drivers/net/sonic.c b/drivers/net/sonic.c
index 90b818a8de6e..cab0dd958492 100644
--- a/drivers/net/sonic.c
+++ b/drivers/net/sonic.c
@@ -231,8 +231,7 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
 
         length = skb->len;
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index 9b7805be21da..c158eedc7813 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1349,8 +1349,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
 
 #if defined(ZEROCOPY) && defined(HAS_BROKEN_FIRMWARE)
         if (skb->ip_summed == CHECKSUM_HW) {
-                skb = skb_padto(skb, (skb->len + PADDING_MASK) & ~PADDING_MASK);
-                if (skb == NULL)
+                if (skb_padto(skb, (skb->len + PADDING_MASK) & ~PADDING_MASK))
                         return NETDEV_TX_OK;
         }
 #endif /* ZEROCOPY && HAS_BROKEN_FIRMWARE */
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b2ddd4522a87..e3e380f90f86 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -3780,7 +3780,7 @@ static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 #if TG3_TSO_SUPPORT != 0
         mss = 0;
         if (skb->len > (tp->dev->mtu + ETH_HLEN) &&
-            (mss = skb_shinfo(skb)->tso_size) != 0) {
+            (mss = skb_shinfo(skb)->gso_size) != 0) {
                 int tcp_opt_len, ip_tcp_len;
 
                 if (skb_header_cloned(skb) &&
@@ -3905,7 +3905,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
 #if TG3_TSO_SUPPORT != 0
         mss = 0;
         if (skb->len > (tp->dev->mtu + ETH_HLEN) &&
-            (mss = skb_shinfo(skb)->tso_size) != 0) {
+            (mss = skb_shinfo(skb)->gso_size) != 0) {
                 int tcp_opt_len, ip_tcp_len;
 
                 if (skb_header_cloned(skb) &&
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index a1ed2d983740..6c62d5c88268 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -490,6 +490,9 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr)
 
                 err = -EINVAL;
 
+                if (!capable(CAP_NET_ADMIN))
+                        return -EPERM;
+
                 /* Set dev type */
                 if (ifr->ifr_flags & IFF_TUN) {
                         /* TUN device */
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index d9258d42090c..e49e8b520c28 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -340,7 +340,7 @@ enum state_values {
 #endif
 
 #if defined(NETIF_F_TSO)
-#define skb_tso_size(x)         (skb_shinfo(x)->tso_size)
+#define skb_tso_size(x)         (skb_shinfo(x)->gso_size)
 #define TSO_NUM_DESCRIPTORS     2
 #define TSO_OFFLOAD_ON          TYPHOON_OFFLOAD_TCP_SEGMENT
 #else
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index fdc21037f6dc..c80a4f1d5f7a 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -1284,11 +1284,8 @@ static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev)
         /* Calculate the next Tx descriptor entry. */
         entry = rp->cur_tx % TX_RING_SIZE;
 
-        if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
-                        return 0;
-        }
+        if (skb_padto(skb, ETH_ZLEN))
+                return 0;
 
         rp->tx_skbuff[entry] = skb;
 
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 879eb427607c..a915fe6c6aa5 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -924,8 +924,7 @@ static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
     if (length < ETH_ZLEN)
     {
-        skb = skb_padto(skb, ETH_ZLEN);
-        if (skb == NULL)
+        if (skb_padto(skb, ETH_ZLEN))
                 return 0;
         length = ETH_ZLEN;
     }
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index f7724eb2fa7e..561250f73fd3 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -3194,11 +3194,8 @@ wavelan_packet_xmit(struct sk_buff *	skb,
          * and we don't have the Ethernet specific requirement of beeing
          * able to detect collisions, therefore in theory we don't really
          * need to pad. Jean II */
-        if (skb->len < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
-                        return 0;
-        }
+        if (skb_padto(skb, ETH_ZLEN))
+                return 0;
 
   wv_packet_write(dev, skb->data, skb->len);
 
diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index fd0f43b7db5b..ecec8e5db786 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -862,13 +862,11 @@ static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 /* Fix GX chipset errata. */
                 if (cacheline_end > 24  || cacheline_end == 0) {
                         len = skb->len + 32 - cacheline_end + 1;
-                        if (len != skb->len)
-                                skb = skb_padto(skb, len);
-                }
-                if (skb == NULL) {
-                        yp->tx_skbuff[entry] = NULL;
-                        netif_wake_queue(dev);
-                        return 0;
+                        if (skb_padto(skb, len)) {
+                                yp->tx_skbuff[entry] = NULL;
+                                netif_wake_queue(dev);
+                                return 0;
+                        }
                 }
         }
         yp->tx_skbuff[entry] = skb;
diff --git a/drivers/net/znet.c b/drivers/net/znet.c
index 3ac047bc727d..a7c089df66e6 100644
--- a/drivers/net/znet.c
+++ b/drivers/net/znet.c
@@ -544,8 +544,7 @@ static int znet_send_packet(struct sk_buff *skb, struct net_device *dev)
                 printk(KERN_DEBUG "%s: ZNet_send_packet.\n", dev->name);
 
         if (length < ETH_ZLEN) {
-                skb = skb_padto(skb, ETH_ZLEN);
-                if (skb == NULL)
+                if (skb_padto(skb, ETH_ZLEN))
                         return 0;
                 length = ETH_ZLEN;
         }