linux/net, branch v3.5-rc5

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-06-28T18:20:31Z

Pull networking update from David Miller: 1) Pairing and deadlock fixes in bluetooth from Johan Hedberg. 2) Add device IDs for AR3011 and AR3012 bluetooth chips. From Giancarlo Formicuccia and Marek Vasut. 3) Fix wireless regulatory deadlock, from Eliad Peller. 4) Fix full TX ring panic in bnx2x driver, from Eric Dumazet. 5) Revert the two commits that added skb_orphan_try(), it causes erratic bonding behavior with UDP clients and the gains it used to give are mostly no longer happening due to how BQL works. From Eric Dumazet. 6) It took two tries, but Thomas Graf fixed a problem wherein we registered ipv6 routing procfs files before their backend data were initialized properly. 7) Fix max GSO size setting in be2net, from Sarveshwar Bandi. 8) PHY device id mask is wrong for KSZ9021 and KS8001 chips, fix from Jason Wang. 9) Fix use of stale SKB data pointer after skb_linearize() call in batman-adv, from Antonio Quartulli. 10) Fix memory leak in IXGBE due to missing __GFP_COMP, from Alexander Duyck. 11) Fix probing of Gobi devices in qmi_wwan usbnet driver, from Bjørn Mork. 12) Fix suspend/resume and open failure handling in usbnet from Ming Lei. 13) Attempt to fix device r8169 hangs for certain chips, from Francois Romieu. 14) Fix advancement of RX dirty pointer in some situations in sh_eth driver, from Yoshihiro Shimoda. 15) Attempt to fix restart of IPV6 routing table dumps when there is an intervening table update. From Eric Dumazet. 16) Respect security_inet_conn_request() return value in ipv6 TCP. From Neal Cardwell. 17) Add another iPAD device ID to ipheth driver, from Davide Gerhard. 18) Fix access to freed SKB in l2tp_eth_dev_xmit(), and fix l2tp lockdep splats, from Eric Dumazet. 19) Make sure all bridge devices, regardless of whether they were created via netlink or ioctls, have their rtnetlink ops hooked up. From Thomas Graf and Stephen Hemminger. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits) 9p: fix min_t() casting in p9pdu_vwritef() can: flexcan: use be32_to_cpup to handle the value of dt entry xen/netfront: teardown the device before unregistering it. bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2) vhost: use USER_DS in vhost_worker thread ixgbe: Do not pad FCoE frames as this can cause issues with FCoE DDP net: l2tp_eth: use LLTX to avoid LOCKDEP splats mac802154: add missed braces net: l2tp_eth: fix l2tp_eth_dev_xmit race net/mlx4_en: Release QP range in free_resources net/mlx4: Use single completion vector after NOP failure net/mlx4_en: Set correct port parameters during device initialization ipheth: add support for iPad caif-hsi: Add missing return in error path caif-hsi: Bugfix - Piggyback'ed embedded CAIF frame lost caif: Clear shutdown mask to zero at reconnect. tcp: heed result of security_inet_conn_request() in tcp_v6_conn_request() ipv6: fib: fix fib dump restart batman-adv: fix race condition in TT full-table replacement batman-adv: only drop packets of known wifi clients ...

9p: fix min_t() casting in p9pdu_vwritef()

2012-06-27T22:26:24Z

I don't think we're actually likely to hit this limit but if we do then the comparison should be done as size_t. The original code is equivalent to: len = strlen(sptr) % USHRT_MAX; Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller

bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2)

2012-06-27T04:12:32Z

This ensures that bridges created with brctl(8) or ioctl(2) directly also carry IFLA_LINKINFO when dumped over netlink. This also allows to create a bridge with ioctl(2) and delete it with RTM_DELLINK. Signed-off-by: Thomas Graf Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

net: l2tp_eth: use LLTX to avoid LOCKDEP splats

2012-06-26T23:42:33Z

Denys Fedoryshchenko reported a LOCKDEP issue with l2tp code. [ 8683.927442] ====================================================== [ 8683.927555] [ INFO: possible circular locking dependency detected ] [ 8683.927672] 3.4.1-build-0061 #14 Not tainted [ 8683.927782] ------------------------------------------------------- [ 8683.927895] swapper/0/0 is trying to acquire lock: [ 8683.928007] (slock-AF_INET){+.-...}, at: [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [ 8683.928121] but task is already holding lock: [ 8683.928121] (_xmit_ETHER#2){+.-...}, at: [] sch_direct_xmit+0x36/0x119 [ 8683.928121] [ 8683.928121] which lock already depends on the new lock. [ 8683.928121] [ 8683.928121] [ 8683.928121] the existing dependency chain (in reverse order) is: [ 8683.928121] [ 8683.928121] -> #1 (_xmit_ETHER#2){+.-...}: [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] ip_send_reply+0xf2/0x1ce [ 8683.928121] [] tcp_v4_send_reset+0x153/0x16f [ 8683.928121] [] tcp_v4_do_rcv+0x172/0x194 [ 8683.928121] [] tcp_v4_rcv+0x387/0x5a0 [ 8683.928121] [] ip_local_deliver_finish+0x13a/0x1e9 [ 8683.928121] [] NF_HOOK.clone.11+0x46/0x4d [ 8683.928121] [] ip_local_deliver+0x41/0x45 [ 8683.928121] [] ip_rcv_finish+0x31a/0x33c [ 8683.928121] [] NF_HOOK.clone.11+0x46/0x4d [ 8683.928121] [] ip_rcv+0x201/0x23d [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] netif_receive_skb+0x4e/0x7d [ 8683.928121] [] rtl8139_poll+0x243/0x33d [8139too] [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [ 8683.928121] -> #0 (slock-AF_INET){+.-...}: [ 8683.928121] [] __lock_acquire+0x9a3/0xc27 [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_eth_dev_xmit+0x1a/0x2f [l2tp_eth] [ 8683.928121] [] dev_hard_start_xmit+0x333/0x3f2 [ 8683.928121] [] sch_direct_xmit+0x55/0x119 [ 8683.928121] [] dev_queue_xmit+0x282/0x418 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_xmit+0x22/0x24 [ 8683.928121] [] arp_send+0x41/0x48 [ 8683.928121] [] arp_process+0x289/0x491 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_rcv+0xb1/0xc3 [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] process_backlog+0x69/0x130 [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [ 8683.928121] other info that might help us debug this: [ 8683.928121] [ 8683.928121] Possible unsafe locking scenario: [ 8683.928121] [ 8683.928121] CPU0 CPU1 [ 8683.928121] ---- ---- [ 8683.928121] lock(_xmit_ETHER#2); [ 8683.928121] lock(slock-AF_INET); [ 8683.928121] lock(_xmit_ETHER#2); [ 8683.928121] lock(slock-AF_INET); [ 8683.928121] [ 8683.928121] *** DEADLOCK *** [ 8683.928121] [ 8683.928121] 3 locks held by swapper/0/0: [ 8683.928121] #0: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x30 [ 8683.928121] #1: (rcu_read_lock_bh){.+....}, at: [] rcu_lock_acquire+0x0/0x30 [ 8683.928121] #2: (_xmit_ETHER#2){+.-...}, at: [] sch_direct_xmit+0x36/0x119 [ 8683.928121] [ 8683.928121] stack backtrace: [ 8683.928121] Pid: 0, comm: swapper/0 Not tainted 3.4.1-build-0061 #14 [ 8683.928121] Call Trace: [ 8683.928121] [] ? printk+0x18/0x1a [ 8683.928121] [] print_circular_bug+0x1ac/0x1b6 [ 8683.928121] [] __lock_acquire+0x9a3/0xc27 [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_eth_dev_xmit+0x1a/0x2f [l2tp_eth] [ 8683.928121] [] dev_hard_start_xmit+0x333/0x3f2 [ 8683.928121] [] sch_direct_xmit+0x55/0x119 [ 8683.928121] [] dev_queue_xmit+0x282/0x418 [ 8683.928121] [] ? dev_hard_start_xmit+0x3f2/0x3f2 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_xmit+0x22/0x24 [ 8683.928121] [] ? dev_hard_start_xmit+0x3f2/0x3f2 [ 8683.928121] [] arp_send+0x41/0x48 [ 8683.928121] [] arp_process+0x289/0x491 [ 8683.928121] [] ? __neigh_lookup.clone.20+0x42/0x42 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_rcv+0xb1/0xc3 [ 8683.928121] [] ? __neigh_lookup.clone.20+0x42/0x42 [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] process_backlog+0x69/0x130 [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [] ? local_bh_enable+0xd/0xd [ 8683.928121] [] ? irq_exit+0x41/0x91 [ 8683.928121] [] ? do_IRQ+0x79/0x8d [ 8683.928121] [] ? trace_hardirqs_off_caller+0x2e/0x86 [ 8683.928121] [] ? common_interrupt+0x2e/0x34 [ 8683.928121] [] ? default_idle+0x23/0x38 [ 8683.928121] [] ? cpu_idle+0x55/0x6f [ 8683.928121] [] ? rest_init+0xa1/0xa7 [ 8683.928121] [] ? __read_lock_failed+0x14/0x14 [ 8683.928121] [] ? start_kernel+0x303/0x30a [ 8683.928121] [] ? repair_env_string+0x51/0x51 [ 8683.928121] [] ? i386_start_kernel+0xa8/0xaf It appears that like most virtual devices, l2tp should be converted to LLTX mode. This patch takes care of statistics using atomic_long in both RX and TX paths, and fix a bug in l2tp_eth_dev_recv(), which was caching skb->data before a pskb_may_pull() call. Signed-off-by: Eric Dumazet Reported-by: Denys Fedoryshchenko Cc: James Chapman Cc: Hong zhi guo Cc: Francois Romieu Signed-off-by: David S. Miller

Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

2012-06-26T18:23:41Z

Pull HID fixes from Jiri Kosina: "The most important one is a purification of Kconfig for CONFIG_HID; the inclusion of HID groups and autoloading didn't leave the Kconfig in a really consistent state. Henrik's patch fixes that. In addition to that, there are two small fixes for logitech and magicmouse drivers." * 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: Fix the generic Kconfig options HID: magicmouse: Correct report range of major / minor axes HID: logitech: don't use stack based dj_report structures

mac802154: add missed braces

2012-06-25T23:35:30Z

Add missed braces after 'if' operator. Signed-off-by: Alexander Smirnov Signed-off-by: David S. Miller

net: l2tp_eth: fix l2tp_eth_dev_xmit race

2012-06-25T23:30:54Z

Its illegal to dereference skb after giving it to l2tp_xmit_skb() as it might be already freed/reused. Signed-off-by: Eric Dumazet Cc: James Chapman Signed-off-by: David S. Miller

caif: Clear shutdown mask to zero at reconnect.

2012-06-25T23:07:22Z

Clear caif sockets's shutdown mask at (re)connect. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller

tcp: heed result of security_inet_conn_request() in tcp_v6_conn_request()

2012-06-25T23:05:19Z

If security_inet_conn_request() returns non-zero then TCP/IPv6 should drop the request, just as in TCP/IPv4 and DCCP in both IPv4 and IPv6. Signed-off-by: Neal Cardwell Acked-by: Eric Dumazet Signed-off-by: David S. Miller

ipv6: fib: fix fib dump restart

2012-06-25T22:37:19Z

Commit 2bec5a369ee79576a3 (ipv6: fib: fix crash when changing large fib while dumping it) introduced ability to restart the dump at tree root, but failed to skip correctly a count of already dumped entries. Code didn't match Patrick intent. We must skip exactly the number of already dumped entries. Note that like other /proc/net files or netlink producers, we could still dump some duplicates entries. Reported-by: Debabrata Banerjee Reported-by: Josh Hunt Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller