From d0c694fc7b01a500741d4085d26ed78df5aa6c7a Mon Sep 17 00:00:00 2001
From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Date: Tue, 10 Jul 2018 16:04:04 +0300
Subject: [PATCH] net: ethernet: ti: cpts: break cycle once late ts is matched
The late ts queue can contain a bunch of skbs while hi rate testing,
no need to check all of them if timestamp is already matched.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/ti/cpts.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index 6f63c8729afca..b4ea58dc8caf8 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -114,7 +114,10 @@ static bool cpts_match_tx_ts(struct cpts *cpts, struct cpts_event *event)
dev_consume_skb_any(skb);
dev_dbg(cpts->dev, "match tx timestamp mtype %u seqid %04x\n",
mtype, seqid);
- } else if (time_after(jiffies, skb_cb->tmo)) {
+ break;
+ }
+
+ if (time_after(jiffies, skb_cb->tmo)) {
/* timeout any expired skbs over 1s */
dev_dbg(cpts->dev,
"expiring tx timestamp mtype %u seqid %04x\n",