[PATCH net 5/7] r8152: Check for supported Wake-on-LAN Modes

From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Woojung Huh <woojung.huh@microchip.com>,
	Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>,
	Steve Glendinning <steve.glendinning@shawell.net>,
	Kees Cook <keescook@chromium.org>,
	Alexander Kurz <akurz@blala.de>,
	Hayes Wang <hayeswang@realtek.com>,
	Kai-Heng Feng <kai.heng.feng@canonical.com>,
	Grant Grundler <grundler@chromium.org>,
	zhong jiang <zhongjiang@huawei.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Ran Wang <ran.wang_1@nxp.com>, Eric Dumazet <edumazet@google.com>,
	linux-usb@vger.kernel.org (open list:USB NETWORKING DRIVERS),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net 5/7] r8152: Check for supported Wake-on-LAN Modes
Date: Mon, 24 Sep 2018 13:54:18 -0700	[thread overview]
Message-ID: <20180924205420.31309-6-f.fainelli@gmail.com> (raw)
In-Reply-To: <20180924205420.31309-1-f.fainelli@gmail.com>

The driver does not check for Wake-on-LAN modes specified by an user,
but will conditionally set the device as wake-up enabled or not based on
that, which could be a very confusing user experience.

Fixes: 21ff2e8976b1 ("r8152: support WOL")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/usb/r8152.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 2cd71bdb6484..f1b5201cc320 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -4506,6 +4506,9 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	if (!rtl_can_wakeup(tp))
 		return -EOPNOTSUPP;
 
+	if (wol->wolopts & ~WAKE_ANY)
+		return -EINVAL;
+
 	ret = usb_autopm_get_interface(tp->intf);
 	if (ret < 0)
 		goto out_set_wol;
-- 
2.17.1

