tun: 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>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 4689e4c..228fe44 100644 (file)
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -3546,6 +3546,7 @@ static int tun_set_coalesce(struct net_device *dev,
 }
 
 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,