[PATCH net-next v2 4/4] netdevsim: account dropped packet length in stats on queue free

[Breno Leitao <leitao@debian.org>]

Add a call to dev_dstats_rx_dropped_add() in nsim_queue_free() to
account for the number of packets dropped when purging the skb queue.

This improves the accuracy of RX drop statistics reported by
netdevsim.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
---
 drivers/net/netdevsim/netdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index de309ff69e43e..6e8fb8922ace2 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -634,7 +634,10 @@ static struct nsim_rq *nsim_queue_alloc(void)
 
 static void nsim_queue_free(struct nsim_rq *rq)
 {
+	struct net_device *dev = rq->napi.dev;
+
 	hrtimer_cancel(&rq->napi_timer);
+	dev_dstats_rx_dropped_add(dev, rq->skb_queue.qlen);
 	skb_queue_purge_reason(&rq->skb_queue, SKB_DROP_REASON_QUEUE_PURGE);
 	kfree(rq);
 }

-- 
2.47.1