From 16756d3e77ad58cd07e36cbed724aa13ae5a0278 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Tue, 13 Apr 2021 20:46:14 -0700
Subject: [PATCH] ethtool: pause: make sure we init driver stats
The intention was for pause statistics to not be reported
when driver does not have the relevant callback (only
report an empty netlink nest). What happens currently
we report all 0s instead. Make sure statistics are
initialized to "not set" (which is -1) so the dumping
code skips them.
Fixes: 9a27a33027f2 ("ethtool: add standard pause stats")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ethtool/pause.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/ethtool/pause.c b/net/ethtool/pause.c
index 09998dc5c185f..d4ac02718b72a 100644
--- a/net/ethtool/pause.c
+++ b/net/ethtool/pause.c
@@ -38,16 +38,16 @@ static int pause_prepare_data(const struct ethnl_req_info *req_base,
if (!dev->ethtool_ops->get_pauseparam)
return -EOPNOTSUPP;
+ ethtool_stats_init((u64 *)&data->pausestat,
+ sizeof(data->pausestat) / 8);
+
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
dev->ethtool_ops->get_pauseparam(dev, &data->pauseparam);
if (req_base->flags & ETHTOOL_FLAG_STATS &&
- dev->ethtool_ops->get_pause_stats) {
- ethtool_stats_init((u64 *)&data->pausestat,
- sizeof(data->pausestat) / 8);
+ dev->ethtool_ops->get_pause_stats)
dev->ethtool_ops->get_pause_stats(dev, &data->pausestat);
- }
ethnl_ops_complete(dev);
return 0;
--
2.30.2