From: Jakub Kicinski <kuba@kernel.org>
Date: Thu, 5 Mar 2020 17:05:58 -0800
Subject: tun: reject unsupported coalescing params
Patch-mainline: v5.7-rc1
Git-commit: e5ad00b34dc03bb56b1d6c99c214d4d530656868
References: bsc#1176447

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>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/tun.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -3546,6 +3546,7 @@ static int tun_set_coalesce(struct net_d
 }
 
 static const struct ethtool_ops tun_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_RX_MAX_FRAMES,
 	.get_drvinfo	= tun_get_drvinfo,
 	.get_msglevel	= tun_get_msglevel,
 	.set_msglevel	= tun_set_msglevel,