1 files changed, 12 insertions, 2 deletions

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 64f51eec6576..1b76eb11deb4 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -24,6 +24,7 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 #include <asm/unaligned.h>
+#include <trace/events/napi.h>
 
 /*
  * We maintain a small pool of fully-sized skbs, to make sure the
@@ -137,6 +138,7 @@ static int poll_one_napi(struct netpoll_info *npinfo,
         set_bit(NAPI_STATE_NPSVC, &napi->state);
 
         work = napi->poll(napi, budget);
+        trace_napi_poll(napi);
 
         clear_bit(NAPI_STATE_NPSVC, &napi->state);
         atomic_dec(&trapped);
@@ -300,8 +302,11 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
                 for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
                      tries > 0; --tries) {
                         if (__netif_tx_trylock(txq)) {
-                                if (!netif_tx_queue_stopped(txq))
+                                if (!netif_tx_queue_stopped(txq)) {
                                         status = ops->ndo_start_xmit(skb, dev);
+                                        if (status == NETDEV_TX_OK)
+                                                txq_trans_update(txq);
+                                }
                                 __netif_tx_unlock(txq);
 
                                 if (status == NETDEV_TX_OK)
@@ -314,6 +319,11 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
 
                         udelay(USEC_PER_POLL);
                 }
+
+                WARN_ONCE(!irqs_disabled(),
+                        "netpoll_send_skb(): %s enabled interrupts in poll (%pF)\n",
+                        dev->name, ops->ndo_start_xmit);
+
                 local_irq_restore(flags);
         }
 
@@ -735,7 +745,7 @@ int netpoll_setup(struct netpoll *np)
                                        np->name);
                                 break;
                         }
-                        cond_resched();
+                        msleep(1);
                 }
 
                 /* If carrier appears to come up instantly, we don't