On Tuesday 09 October 2012, Michael Leun wrote:
> On Thu, 27 Sep 2012 10:39:05 -0700
>
> Greg KH <gre...@linuxfoundation.org> wrote:
> > On Tue, Jul 24, 2012 at 01:36:34AM +0200, Michael Leun wrote:
> > > On Mon, 23 Jul 2012 09:15:04 +0200
> > > Michael Leun <lkml20120...@newton.leun.net> wrote:
> > >
> > > [see issue description below]
> > >
> > > Bisecting yielded
> > >
> > > b1ff4f96fd1c63890d78d8939c6e0f2b44ce3113 is the first bad commit
> > > commit b1ff4f96fd1c63890d78d8939c6e0f2b44ce3113
> > > Author: Ondrej Zary <li...@rainbow-software.org>
> > > Date: Fri Jun 1 10:29:08 2012 +0000
> > >
> > > mcs7830: Implement link state detection
> > >
> > > Add .status callback that detects link state changes.
> > > Tested with MCS7832CV-AA chip (9710:7830, identified as rev.C
> > > by the driver). Fixes
> > > https://bugzilla.kernel.org/show_bug.cgi?id=28532
> > >
> > > Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
> > > Signed-off-by: David S. Miller <da...@davemloft.net>
> > >
> > > :040000 040000 5480780cb5e75c57122a621fc3bab0108c16be27
> > >
> > > d97efd9cc0a465dff76bcd3a3c547f718f2a5345 M drivers
> > >
> > >
> > > Reverting that from 3.5 makes the issue go away.
> >
> > Did this ever get resolved in 3.6-rc7 or any older kernel? I can't
> > revert the patch from 3.5.y unless it's also fixed in Linus's tree.
>
> Please excuse me for answering a bit late.
>
> No, that never got resolved, I still have the problem with 3.6 but I'm
> not shure about the correct solution.
>
> Maybe link state detection just does not work with some of that devices
> and we should have an possibility to enable/disable it per device,
> maybe it can be handeled with an blacklist of not working devices,
> maybe it could be fixed - I do not know and also do not know how to
> find out.
>
> But I'm willing to test.
Can you please apply this debug patch and provide the output?
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -638,6 +638,7 @@ static void mcs7830_status(struct usbnet *dev, struct urb
*urb)
return;
link = !(buf[1] & 0x20);
+ printk("netif_carrier_ok=%d, link=%d, buf[0]=0x%02x, buf[1]=0x%02x\n",
netif_carrier_ok(dev->net), link, buf[0], buf[1]);
if (netif_carrier_ok(dev->net) != link) {
if (link) {
netif_carrier_on(dev->net);
--
Ondrej Zary
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
