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

Pull networking fixes from David Miller:

 1) Fix ppp_mppe crypto soft dependencies, from Takashi Iawi.

 2) Fix TX completion to be finite, from Sergej Benilov.

 3) Use register_pernet_device to avoid a dst leak in tipc, from Xin
    Long.

 4) Double free of TX cleanup in Dirk van der Merwe.

 5) Memory leak in packet_set_ring(), from Eric Dumazet.

 6) Out of bounds read in qmi_wwan, from Bjørn Mork.

 7) Fix iif used in mcast/bcast looped back packets, from Stephen
    Suryaputra.

 8) Fix neighbour resolution on raw ipv6 sockets, from Nicolas Dichtel.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits)
  af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET
  sctp: change to hold sk after auth shkey is created successfully
  ipv6: fix neighbour resolution with raw socket
  ipv6: constify rt6_nexthop()
  net: dsa: microchip: Use gpiod_set_value_cansleep()
  net: aquantia: fix vlans not working over bridged network
  ipv4: reset rt_iif for recirculated mcast/bcast out pkts
  team: Always enable vlan tx offload
  net/smc: Fix error path in smc_init
  net/smc: hold conns_lock before calling smc_lgr_register_conn()
  bonding: Always enable vlan tx offload
  net/ipv6: Fix misuse of proc_dointvec "skip_notify_on_dev_down"
  ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
  qmi_wwan: Fix out-of-bounds read
  tipc: check msg->req data len in tipc_nl_compat_bearer_disable
  net: macb: do not copy the mac address if NULL
  net/packet: fix memory leak in packet_set_ring()
  net/tls: fix page double free on TX cleanup
  net/sched: cbs: Fix error path of cbs_module_init
  tipc: change to use register_pernet_device
  ...

1 files changed, 14 insertions, 8 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 06dd51f47cfd..06358fe5b245 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2947,12 +2947,15 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	/* Manage tx mitigation */
 	tx_q->tx_count_frames += nfrags + 1;
-	if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+	if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+	    !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+	    (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+	    priv->hwts_tx_en)) {
+		stmmac_tx_timer_arm(priv, queue);
+	} else {
+		tx_q->tx_count_frames = 0;
 		stmmac_set_tx_ic(priv, desc);
 		priv->xstats.tx_set_ic_bit++;
-		tx_q->tx_count_frames = 0;
-	} else {
-		stmmac_tx_timer_arm(priv, queue);
 	}
 
 	skb_tx_timestamp(skb);
@@ -3166,12 +3169,15 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 	 * element in case of no SG.
 	 */
 	tx_q->tx_count_frames += nfrags + 1;
-	if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+	if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+	    !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+	    (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+	    priv->hwts_tx_en)) {
+		stmmac_tx_timer_arm(priv, queue);
+	} else {
+		tx_q->tx_count_frames = 0;
 		stmmac_set_tx_ic(priv, desc);
 		priv->xstats.tx_set_ic_bit++;
-		tx_q->tx_count_frames = 0;
-	} else {
-		stmmac_tx_timer_arm(priv, queue);
 	}
 
 	skb_tx_timestamp(skb);