Message ID | 1391949707.10160.130.camel@edumazet-glaptop2.roam.corp.google.com |
---|---|
State | RFC, archived |
Delegated to: | David Miller |
Headers | show |
Hi Eric, On Sun, Feb 09, 2014 at 04:41:47AM -0800, Eric Dumazet wrote: > > Please try the following fix, thanks for this report ! > > diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c > index 48b25c0af4d0..069af33013c4 100644 > --- a/net/ieee802154/6lowpan.c > +++ b/net/ieee802154/6lowpan.c > @@ -533,7 +533,27 @@ static struct header_ops lowpan_header_ops = { > .create = lowpan_header_create, > }; > > +static struct lock_class_key lowpan_tx_busylock; > +static struct lock_class_key lowpan_netdev_xmit_lock_key; > + > +static void lowpan_set_lockdep_class_one(struct net_device *dev, > + struct netdev_queue *txq, > + void *_unused) > +{ > + lockdep_set_class(&txq->_xmit_lock, > + &lowpan_netdev_xmit_lock_key); > +} > + > + > +static int lowpan_dev_init(struct net_device *dev) > +{ > + netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL); > + dev->qdisc_tx_busylock = &lowpan_tx_busylock; > + return 0; > +} > + > static const struct net_device_ops lowpan_netdev_ops = { > + .ndo_init = lowpan_dev_init, > .ndo_start_xmit = lowpan_xmit, > .ndo_set_mac_address = lowpan_set_address, > }; thanks, this fixed the issue. What we should do as next? Should I create a patch for this or do you want to make a patch? - Alex -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, 2014-02-10 at 18:33 +0100, Alexander Aring wrote: > Hi Eric, > > On Sun, Feb 09, 2014 at 04:41:47AM -0800, Eric Dumazet wrote: > > > > Please try the following fix, thanks for this report ! > > > > diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c > > index 48b25c0af4d0..069af33013c4 100644 > > --- a/net/ieee802154/6lowpan.c > > +++ b/net/ieee802154/6lowpan.c > > @@ -533,7 +533,27 @@ static struct header_ops lowpan_header_ops = { > > .create = lowpan_header_create, > > }; > > > > +static struct lock_class_key lowpan_tx_busylock; > > +static struct lock_class_key lowpan_netdev_xmit_lock_key; > > + > > +static void lowpan_set_lockdep_class_one(struct net_device *dev, > > + struct netdev_queue *txq, > > + void *_unused) > > +{ > > + lockdep_set_class(&txq->_xmit_lock, > > + &lowpan_netdev_xmit_lock_key); > > +} > > + > > + > > +static int lowpan_dev_init(struct net_device *dev) > > +{ > > + netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL); > > + dev->qdisc_tx_busylock = &lowpan_tx_busylock; > > + return 0; > > +} > > + > > static const struct net_device_ops lowpan_netdev_ops = { > > + .ndo_init = lowpan_dev_init, > > .ndo_start_xmit = lowpan_xmit, > > .ndo_set_mac_address = lowpan_set_address, > > }; > > thanks, this fixed the issue. What we should do as next? > > Should I create a patch for this or do you want to make a patch? I'll take care of this, don't worry ;) Thanks for testing ! -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, On Mon, Feb 10, 2014 at 10:16:26AM -0800, Eric Dumazet wrote: > On Mon, 2014-02-10 at 18:33 +0100, Alexander Aring wrote: > > Hi Eric, > > > > On Sun, Feb 09, 2014 at 04:41:47AM -0800, Eric Dumazet wrote: > > > > > > Please try the following fix, thanks for this report ! > > > > > > diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c > > > index 48b25c0af4d0..069af33013c4 100644 > > > --- a/net/ieee802154/6lowpan.c > > > +++ b/net/ieee802154/6lowpan.c > > > @@ -533,7 +533,27 @@ static struct header_ops lowpan_header_ops = { > > > .create = lowpan_header_create, > > > }; > > > > > > +static struct lock_class_key lowpan_tx_busylock; > > > +static struct lock_class_key lowpan_netdev_xmit_lock_key; > > > + > > > +static void lowpan_set_lockdep_class_one(struct net_device *dev, > > > + struct netdev_queue *txq, > > > + void *_unused) > > > +{ > > > + lockdep_set_class(&txq->_xmit_lock, > > > + &lowpan_netdev_xmit_lock_key); > > > +} > > > + > > > + > > > +static int lowpan_dev_init(struct net_device *dev) > > > +{ > > > + netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL); > > > + dev->qdisc_tx_busylock = &lowpan_tx_busylock; > > > + return 0; > > > +} > > > + > > > static const struct net_device_ops lowpan_netdev_ops = { > > > + .ndo_init = lowpan_dev_init, > > > .ndo_start_xmit = lowpan_xmit, > > > .ndo_set_mac_address = lowpan_set_address, > > > }; > > > > thanks, this fixed the issue. What we should do as next? > > > > Should I create a patch for this or do you want to make a patch? > > I'll take care of this, don't worry ;) > > Thanks for testing ! > no problem. Maybe you can try to give me some explanation what you did there? I see you make a lockdep_set_class for each tx queue and assign the lowpan_netdev_xmit_lock_key. So why it's better to make a own "lock_key". thanks. - Alex -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, 2014-02-10 at 19:21 +0100, Alexander Aring wrote: > no problem. Maybe you can try to give me some explanation what you did > there? > > I see you make a lockdep_set_class for each tx queue and assign the > lowpan_netdev_xmit_lock_key. So why it's better to make a own > "lock_key". This will be explained in the patch I'll cook. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Feb 10, 2014 at 11:26:12AM -0800, Eric Dumazet wrote: > On Mon, 2014-02-10 at 19:21 +0100, Alexander Aring wrote: > > > no problem. Maybe you can try to give me some explanation what you did > > there? > > > > I see you make a lockdep_set_class for each tx queue and assign the > > lowpan_netdev_xmit_lock_key. So why it's better to make a own > > "lock_key". > > This will be explained in the patch I'll cook. > Okay, then you can add a Tested-by: Alexander Aring <alex.aring@gmail.com> Thanks! - Alex -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index 48b25c0af4d0..069af33013c4 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -533,7 +533,27 @@ static struct header_ops lowpan_header_ops = { .create = lowpan_header_create, }; +static struct lock_class_key lowpan_tx_busylock; +static struct lock_class_key lowpan_netdev_xmit_lock_key; + +static void lowpan_set_lockdep_class_one(struct net_device *dev, + struct netdev_queue *txq, + void *_unused) +{ + lockdep_set_class(&txq->_xmit_lock, + &lowpan_netdev_xmit_lock_key); +} + + +static int lowpan_dev_init(struct net_device *dev) +{ + netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL); + dev->qdisc_tx_busylock = &lowpan_tx_busylock; + return 0; +} + static const struct net_device_ops lowpan_netdev_ops = { + .ndo_init = lowpan_dev_init, .ndo_start_xmit = lowpan_xmit, .ndo_set_mac_address = lowpan_set_address, };