| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 24 Jul 2015 13:54:24 +0800
From: Hayes Wang <hayeswang@...ltek.com>
To: <netdev@...r.kernel.org>
CC: <nic_swsd@...ltek.com>, <linux-kernel@...r.kernel.org>,
<linux-usb@...r.kernel.org>, Hayes Wang <hayeswang@...ltek.com>
Subject: [PATCH net v2 2/3] r8152: fix wakeup settings
Avoid the driver to enable WOL if the device doesn't support it.
Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
---
drivers/net/usb/r8152.c | 28 ++++++++++++++++++++++------
1 file changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index e3a0110..d537c30 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2378,6 +2378,13 @@ static void r8153_power_cut_en(struct r8152 *tp, bool enable)
ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
}
+static bool rtl_can_wakeup(struct r8152 *tp)
+{
+ struct usb_device *udev = tp->udev;
+
+ return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP);
+}
+
static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable)
{
if (enable) {
@@ -3417,12 +3424,15 @@ static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
if (usb_autopm_get_interface(tp->intf) < 0)
return;
- mutex_lock(&tp->control);
-
- wol->supported = WAKE_ANY;
- wol->wolopts = __rtl_get_wol(tp);
-
- mutex_unlock(&tp->control);
+ if (!rtl_can_wakeup(tp)) {
+ wol->supported = 0;
+ wol->wolopts = 0;
+ } else {
+ mutex_lock(&tp->control);
+ wol->supported = WAKE_ANY;
+ wol->wolopts = __rtl_get_wol(tp);
+ mutex_unlock(&tp->control);
+ }
usb_autopm_put_interface(tp->intf);
}
@@ -3432,6 +3442,9 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct r8152 *tp = netdev_priv(dev);
int ret;
+ if (!rtl_can_wakeup(tp))
+ return -EOPNOTSUPP;
+
ret = usb_autopm_get_interface(tp->intf);
if (ret < 0)
goto out_set_wol;
@@ -4073,6 +4086,9 @@ static int rtl8152_probe(struct usb_interface *intf,
goto out1;
}
+ if (!rtl_can_wakeup(tp))
+ __rtl_set_wol(tp, 0);
+
tp->saved_wolopts = __rtl_get_wol(tp);
if (tp->saved_wolopts)
device_set_wakeup_enable(&udev->dev, true);
--
2.4.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists