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

Pull networking fixes from David Miller:

 1) Fix TCP checksum offload handling in iwlwifi driver, from Emmanuel
    Grumbach.

 2) In ksz DSA tagging code, free SKB if skb_put_padto() fails. From
    Vivien Didelot.

 3) Fix two regressions with bonding on wireless, from Andreas Born.

 4) Fix build when busypoll is disabled, from Daniel Borkmann.

 5) Fix copy_linear_skb() wrt. SO_PEEK_OFF, from Eric Dumazet.

 6) Set SKB cached route properly in inet_rtm_getroute(), from Florian
    Westphal.

 7) Fix PCI-E relaxed ordering handling in cxgb4 driver, from Ding
    Tianhong.

 8) Fix module refcnt leak in ULP code, from Sabrina Dubroca.

 9) Fix use of GFP_KERNEL in atomic contexts in AF_KEY code, from Eric
    Dumazet.

10) Need to purge socket write queue in dccp_destroy_sock(), also from
    Eric Dumazet.

11) Make bpf_trace_printk() work properly on 32-bit architectures, from
    Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
  bpf: fix bpf_trace_printk on 32 bit archs
  PCI: fix oops when try to find Root Port for a PCI device
  sfc: don't try and read ef10 data on non-ef10 NIC
  net_sched: remove warning from qdisc_hash_add
  net_sched/sfq: update hierarchical backlog when drop packet
  net_sched: reset pointers to tcf blocks in classful qdiscs' destructors
  ipv4: fix NULL dereference in free_fib_info_rcu()
  net: Fix a typo in comment about sock flags.
  ipv6: fix NULL dereference in ip6_route_dev_notify()
  tcp: fix possible deadlock in TCP stack vs BPF filter
  dccp: purge write queue in dccp_destroy_sock()
  udp: fix linear skb reception with PEEK_OFF
  ipv6: release rt6->rt6i_idev properly during ifdown
  af_key: do not use GFP_KERNEL in atomic contexts
  tcp: ulp: avoid module refcnt leak in tcp_set_ulp
  net/cxgb4vf: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
  net/cxgb4: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
  PCI: Disable Relaxed Ordering Attributes for AMD A1100
  PCI: Disable Relaxed Ordering for some Intel processors
  PCI: Disable PCIe Relaxed Ordering if unsupported
  ...

1 files changed, 9 insertions, 4 deletions

diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index fab41de8e983..de66ca8e6201 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -42,6 +42,9 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
 	padlen = (skb->len >= ETH_ZLEN) ? 0 : ETH_ZLEN - skb->len;
 
 	if (skb_tailroom(skb) >= padlen + KSZ_INGRESS_TAG_LEN) {
+		if (skb_put_padto(skb, skb->len + padlen))
+			return NULL;
+
 		nskb = skb;
 	} else {
 		nskb = alloc_skb(NET_IP_ALIGN + skb->len +
@@ -56,13 +59,15 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb_set_transport_header(nskb,
 					 skb_transport_header(skb) - skb->head);
 		skb_copy_and_csum_dev(skb, skb_put(nskb, skb->len));
+
+		if (skb_put_padto(nskb, nskb->len + padlen)) {
+			kfree_skb(nskb);
+			return NULL;
+		}
+
 		kfree_skb(skb);
 	}
 
-	/* skb is freed when it fails */
-	if (skb_put_padto(nskb, nskb->len + padlen))
-		return NULL;
-
 	tag = skb_put(nskb, KSZ_INGRESS_TAG_LEN);
 	tag[0] = 0;
 	tag[1] = 1 << p->dp->index; /* destination port */