UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb gadget: fix ethernet link reports to ethtool 

The g_ether USB gadget driver currently decides whether or not there's a
link to report back for eth_get_link based on if the USB link speed is
set. The USB gadget speed is however often set even before the device is
enumerated. It seems more sensible to only report a "link" if we're
actually connected to a host that wants to talk to us. The patch below
does this for me - tested with the PXA27x UDC driver.

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan McDowell 2009-03-26 00:45:27 -07:00 committed by Greg Kroah-Hartman
parent 9f76208c33
commit 237e75bf1e
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/usb/gadget/u_ether.c
View File

@ -175,12 +175,6 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info);
}
static u32 eth_get_link(struct net_device *net)
{
struct eth_dev *dev = netdev_priv(net);
return dev->gadget->speed != USB_SPEED_UNKNOWN;
}
/* REVISIT can also support:
* - WOL (by tracking suspends and issuing remote wakeup)
* - msglevel (implies updated messaging)
@ -189,7 +183,7 @@ static u32 eth_get_link(struct net_device *net)
static struct ethtool_ops ops = {
.get_drvinfo = eth_get_drvinfo,
.get_link = eth_get_link
.get_link = ethtool_op_get_link,
};
static void defer_kevent(struct eth_dev *dev, int flag)