From e06362369ae1e5b0ba70b66f8703ff08bcb63b23 Mon Sep 17 00:00:00 2001
From: Chun-Hao Lin <hau@realtek.com>
Date: Fri, 29 Jul 2016 16:37:55 +0800
Subject: [PATCH] r8169: add checking driver's runtime pm status in
rtl8169_get_ethtool_stats()
Not to call rtl8169_update_counters() to dump tally counter when driver
is in runtime suspend state.
Calling rtl8169_update_counters() in runtime suspend state will produce
warning message "rtl_counters_cond == 1 (loop: 1000, delay: 10)".
Signed-off-by: Chunhao Lin <hau@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/realtek/r8169.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 00c387bf41b72..d0b5cae2825f4 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -2308,11 +2308,17 @@ static void rtl8169_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct rtl8169_private *tp = netdev_priv(dev);
+ struct device *d = &tp->pci_dev->dev;
struct rtl8169_counters *counters = tp->counters;
ASSERT_RTNL();
- rtl8169_update_counters(dev);
+ pm_runtime_get_noresume(d);
+
+ if (pm_runtime_active(d))
+ rtl8169_update_counters(dev);
+
+ pm_runtime_put_noidle(d);
data[0] = le64_to_cpu(counters->tx_packets);
data[1] = le64_to_cpu(counters->rx_packets);
--
2.30.2