From a1edda361520f80c68e56380c097b125b375261c Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Thu, 12 Mar 2020 21:07:55 -0700
Subject: [Backport a1edda361520] net: sky2: reject unsupported coalescing
 params

Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 src/sky2.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/sky2.c b/src/sky2.c
index ebfd0ceac884d9afb7a623f013595ced19eabac0..241f007169797b8a21e4496610b700698bd1d8c1 100644
--- a/src/sky2.c
+++ b/src/sky2.c
@@ -4400,6 +4400,10 @@ static int sky2_set_features(struct net_device *dev, netdev_features_t features)
 }
 
 static const struct ethtool_ops sky2_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+				     ETHTOOL_COALESCE_MAX_FRAMES |
+				     ETHTOOL_COALESCE_RX_USECS_IRQ |
+				     ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ,
 	.get_drvinfo	= sky2_get_drvinfo,
 	.get_wol	= sky2_get_wol,
 	.set_wol	= sky2_set_wol,
-- 
2.31.1