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2012-12-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) GRE tunnel drivers don't set the transport header properly, they also blindly deref the inner protocol ipv4 and needs some checks. Fixes from Isaku Yamahata. 2) Fix sleeps while atomic in netdevice rename code, from Eric Dumazet. 3) Fix double-spinlock in solos-pci driver, from Dan Carpenter. 4) More ARP bug fixes. Fix lockdep splat in arp_solicit() and then the bug accidentally added by that fix. From Eric Dumazet and Cong Wang. 5) Remove some __dev* annotations that slipped back in, as well as all HOTPLUG references. From Greg KH 6) RDS protocol uses wrong interfaces to access scatter-gather elements, causing a regression. From Mike Marciniszyn. 7) Fix build error in cpts driver, from Richard Cochran. 8) Fix arithmetic in packet scheduler, from Stefan Hasko. 9) Similarly, fix association during calculation of random backoff in batman-adv. From Akinobu Mita. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits) ipv6/ip6_gre: set transport header correctly ipv4/ip_gre: set transport header correctly to gre header IB/rds: suppress incompatible protocol when version is known IB/rds: Correct ib_api use with gs_dma_address/sg_dma_len net/vxlan: Use the underlying device index when joining/leaving multicast groups tcp: should drop incoming frames without ACK flag set netprio_cgroup: define sk_cgrp_prioidx only if NETPRIO_CGROUP is enabled cpts: fix a run time warn_on. cpts: fix build error by removing useless code. batman-adv: fix random jitter calculation arp: fix a regression in arp_solicit() net: sched: integer overflow fix CONFIG_HOTPLUG removal from networking core Drivers: network: more __dev* removal bridge: call br_netpoll_disable in br_add_if ipv4: arp: fix a lockdep splat in arp_solicit() tuntap: dont use a private kmem_cache net: devnet_rename_seq should be a seqcount ip_gre: fix possible use after free ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally ...
2012-12-26net/vxlan: Use the underlying device index when joining/leaving multicast groupsYan Burman
The socket calls from vxlan to join/leave multicast group aren't using the index of the underlying device, as a result the stack uses the first interface that is up. This results in vxlan being non functional over a device which isn't the 1st to be up. Fix this by providing the iflink field to the vxlan instance to the multicast calls. Signed-off-by: Yan Burman <yanb@mellanox.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-26cpts: fix a run time warn_on.Richard Cochran
This patch fixes a warning in clk_enable by calling clk_prepare_enable instead. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-26cpts: fix build error by removing useless code.Richard Cochran
The cpts driver tries to obtain the input clock frequency by calling the clock's internal 'recalc' method. Since <plat/clock.h> has been removed, this code can no longer compile. However, the driver never makes use of the frequency value, so this patch fixes the issue by removing the offending code altogether. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-22Drivers: network: more __dev* removalGreg KH
Remove some __dev* markings that snuck in the 3.8-rc1 merge window in the drivers/net/* directory. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-21Merge tag 'rdma-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull more infiniband changes from Roland Dreier: "Second batch of InfiniBand/RDMA changes for 3.8: - cxgb4 changes to fix lookup engine hash collisions - mlx4 changes to make flow steering usable - fix to IPoIB to avoid pinning dst reference for too long" * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/cxgb4: Fix bug for active and passive LE hash collision path RDMA/cxgb4: Fix LE hash collision bug for passive open connection RDMA/cxgb4: Fix LE hash collision bug for active open connection mlx4_core: Allow choosing flow steering mode mlx4_core: Adjustments to Flow Steering activation logic for SR-IOV mlx4_core: Fix error flow in the flow steering wrapper mlx4_core: Add QPN enforcement for flow steering rules set by VFs cxgb4: Add LE hash collision bug fix path in LLD driver cxgb4: Add T4 filter support IPoIB: Call skb_dst_drop() once skb is enqueued for sending
2012-12-21tuntap: dont use a private kmem_cacheEric Dumazet
Commit 96442e42429 (tuntap: choose the txq based on rxq) added a per tun_struct kmem_cache. As soon as several tun_struct are used, we get an error because two caches cannot have same name. Use the default kmalloc()/kfree_rcu(), as it reduce code size and doesn't have performance impact here. Reported-by: Paul Moore <pmoore@redhat.com> Tested-by: Paul Moore <pmoore@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-20Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio update from Rusty Russell: "Some nice cleanups, and even a patch my wife did as a "live" demo for Latinoware 2012. There's a slightly non-trivial merge in virtio-net, as we cleaned up the virtio add_buf interface while DaveM accepted the mq virtio-net patches." * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits) virtio_console: Add support for remoteproc serial virtio_console: Merge struct buffer_token into struct port_buffer virtio: add drv_to_virtio to make code clearly virtio: use dev_to_virtio wrapper in virtio virtio-mmio: Fix irq parsing in command line parameter virtio_console: Free buffers from out-queue upon close virtio: Convert dev_printk(KERN_<LEVEL> to dev_<level>( virtio_console: Use kmalloc instead of kzalloc virtio_console: Free buffer if splice fails virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0 virtio: make virtqueue_add_buf() returning 0 on success, not capacity. virtio: console: don't rely on virtqueue_add_buf() returning capacity. virtio_net: don't rely on virtqueue_add_buf() returning capacity. virtio-net: remove unused skb_vnet_hdr->num_sg field virtio-net: correct capacity math on ring full virtio: move queue_index and num_free fields into core struct virtqueue. ...
2012-12-19Merge branches 'cxgb4', 'ipoib' and 'mlx4' into for-nextRoland Dreier
2012-12-19RDMA/cxgb4: Fix bug for active and passive LE hash collision pathVipul Pandya
Retries active opens for INUSE errors. Logs any active ofld_connect_wr error replies. Sends ofld_connect_wr on same ctrlq. It needs to go on the same control txq as regular CPL active/passive messages. Retries on active open replies with EADDRINUSE. Uses active open fw wr only if active filter region is set. Adds stat for ofld_connect_wr failures. This patch also adds debugfs file to show endpoints. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19RDMA/cxgb4: Fix LE hash collision bug for passive open connectionVipul Pandya
It establishes passive open connection through firmware work request. Passive open connection will go through this path as now instead of listening server we create a server filter which will redirect the incoming SYN packet to the offload queue. After this driver tries to establish the connection using firmware work request. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19RDMA/cxgb4: Fix LE hash collision bug for active open connectionVipul Pandya
It enables establishing active open connection using fw_ofld_connection work request when cpl_act_open_rpl says TCAM full error which may be because of LE hash collision. Current support is only for IPv4 active open connections. Sets ntuple bits in active open requests. For T4 firmware greater than 1.4.10.0 ntuple bits are required to be set. Adds nocong and enable_ecn module parameter options. Signed-off-by: Vipul Pandya <vipul@chelsio.com> [ Move all FW return values to t4fw_api.h. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Really fix tuntap SKB use after free bug, from Eric Dumazet. 2) Adjust SKB data pointer to point past the transport header before calling icmpv6_notify() so that the headers are in the state which that function expects. From Duan Jiong. 3) Fix ambiguities in the new tuntap multi-queue APIs. From Jason Wang. 4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov. 5) Don't destroy mutex after freeing up device private in mac802154, fix also from Konstantin Khlebnikov. 6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch. 7) SCTP HMAC kconfig rework, from Neil Horman. 8) Fix SCTP jprobes function signature, otherwise things explode, from Daniel Borkmann. 9) Fix typo in ipv6-offload Makefile variable reference, from Simon Arlott. 10) Don't fail USBNET open just because remote wakeup isn't supported, from Oliver Neukum. 11) be2net driver bug fixes from Sathya Perla. 12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David Woodhouse. 13) Fix MTU changing regression in 8139cp driver, from John Greene. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits) solos-pci: ensure all TX packets are aligned to 4 bytes solos-pci: add firmware upgrade support for new models solos-pci: remove superfluous debug output solos-pci: add GPIO support for newer versions on Geos board 8139cp: Prevent dev_close/cp_interrupt race on MTU change net: qmi_wwan: add ZTE MF880 drivers/net: Use of_match_ptr() macro in smsc911x.c drivers/net: Use of_match_ptr() macro in smc91x.c ipv6: addrconf.c: remove unnecessary "if" bridge: Correctly encode addresses when dumping mdb entries bridge: Do not unregister all PF_BRIDGE rtnl operations use generic usbnet_manage_power() usbnet: generic manage_power() usbnet: handle PM failure gracefully ksz884x: fix receive polling race condition qlcnic: update driver version qlcnic: fix unused variable warnings net: fec: forbid FEC_PTP on SoCs that do not support be2net: fix wrong frag_idx reported by RX CQ be2net: fix be_close() to ensure all events are ack'ed ...
2012-12-198139cp: Prevent dev_close/cp_interrupt race on MTU changeJohn Greene
commit: cb64edb6b89491edfdbae52ba7db9a8b8391d339 upstream Above commit may introduce a race between cp_interrupt and dev_close / change MTU / dev_open up state. Changes cp_interrupt to tolerate this. Change spin_locking in cp_interrupt to avoid possible but unobserved race. Reported-by: "Francois Romieu" <romieu@fr.zoreil.com> Tested on virtual hardware, Tx MTU size up to 4096, max tx payload was ping -s 4068 for MTU of 4096. No real hardware, need test assist. Signed-off-by: "John Greene" <jogreene@redhat.com> CC: "David S. Miller" <davem@davemloft.net> CC: "David Woodhouse" <David.Woodhouse@intel.com> Tested-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19net: qmi_wwan: add ZTE MF880Bjørn Mork
The driver description files gives these names to the vendor specific functions on this modem: diag: VID_19D2&PID_0284&MI_00 nmea: VID_19D2&PID_0284&MI_01 at: VID_19D2&PID_0284&MI_02 mdm: VID_19D2&PID_0284&MI_03 net: VID_19D2&PID_0284&MI_04 Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19drivers/net: Use of_match_ptr() macro in smsc911x.cSachin Kamat
Add CONFIG_OF guard and use of_match_ptr macro. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19drivers/net: Use of_match_ptr() macro in smc91x.cSachin Kamat
This eliminates having an #ifdef returning NULL for the case when OF is disabled. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19use generic usbnet_manage_power()Oliver Neukum
This covers the drivers that can use a primitive implementation. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19usbnet: generic manage_power()Oliver Neukum
Centralise common code for manage_power() in usbnet by making a generic simple implementation Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19usbnet: handle PM failure gracefullyOliver Neukum
If a device fails to do remote wakeup, this is no reason to abort an open totally. This patch just continues without runtime PM. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19ksz884x: fix receive polling race conditionLennert Buytenhek
The ksz884x driver does receive processing in a custom tasklet, and seems to be assuming that since it takes its private interface spinlock with spin_lock_irq(), it won't be running concurrently with its own interrupt handler, as it cannot be preempted by it, but since its interrupt handler doesn't do any locking whatsoever, the receive processing tasklet and interrupt handler can end up running concurrently on different CPUs. As a result of this, the ksz884x receive path ends up locking up fairly easily, when the receive processing tasklet's reenabling of receive interrupts (due to it being done with polling the receive ring) races with the interrupt handler's disabling of receive interrupts (due to a new receive interrupt coming in) resulting in the receive interrupt being masked but the receive processing tasklet not being scheduled. Fix this by making the ksz884x interrupt handler take its private interface spinlock. This requires upgrading the spin_lock() in the transmit cleanup tasklet to a spin_lock_irq(), as otherwise the IRQ handler can preempt transmit cleanup and deadlock the system, but with those two changes, no more receive lockups have been observed. Reported-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> ---- Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19qlcnic: update driver versionSigned-off-by: Sony Chacko
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19qlcnic: fix unused variable warningsShahed Shaikh
qlcnic_hw.c:370: warning: variable cmd_desc set but not used qlcnic_hw.c:368: warning: variable consumer set but not used qlcnic_main.c:448: warning: variable ref_count set but not used qlcnic_main.c:534: warning: variable mem_base set but not used qlcnic_ctx.c:137: warning: variable tmp_tmpl set but not used qlcnic_ctx.c:133: warning: variable version set but not used qlcnic_minidump.c:200: warning: variable opcode set but not used Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19mlx4_core: Allow choosing flow steering modeJack Morgenstein
Device managed flow steering will be enabled only under administrator directive provided through setting the existing module parameter log_num_mgm_entry_size to -1 (if the device actually supports flow steering). If flow steering isn't requested or not available, the driver will use the value of log_num_mgm_entry_size and B0 steering. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19mlx4_core: Adjustments to Flow Steering activation logic for SR-IOVJack Morgenstein
Separate flow steering capability detection from the decision to activate. For the master (and for native), detect the flow steering capability in mlx4_dev_cap, but activate the appropriate steering type in a new function choose_flow_steering() based on detected data. For VFs, activate flow steering based on what was actually activated by the master, where that info is obtained via QUERY_HCA. This fixes the current VF detection which is wrongly based on QUERY_DEV_CAP. Also, for SR-IOV mode, if flow steering may be activated, do so only if the max number of QPs per rule is sufficient to satisfy one subscription per VF. If not, fall back to B0 mode. This is needed to serve registrations done by L2 network drivers such as mlx4_en and IPoIB when the network stack attempts to join to multicast groups such as all-hosts or the IPoIB broadcast group. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2012-12-19mlx4_core: Fix error flow in the flow steering wrapperHadar Hen Zion
The error flow of the flow steering wrapper had a typo which caused the wrong firmware command to be called, fix it. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19mlx4_core: Add QPN enforcement for flow steering rules set by VFsHadar Hen Zion
Since VFs may be mapped to VMs which aren't trusted entities, flow steering rules attached through the wrapper on behalf of VFs must be checked to make sure that the specified QP number is assigned to that VF. Also, make sure to keep the QP busy till the end of the operation from the resource tracker point of view. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19cxgb4: Add LE hash collision bug fix path in LLD driverVipul Pandya
It supports establishing passive open connection through firmware filter work request. Passive open connection will go through this path as now instead of listening server we create a server filter which will redirect the incoming SYN packet to the offload queue. It divides filter region into regular filters and server filter portion. It introduces new server filter region which will be exclusively used for creating server filters. This region will not overlap with regular filter region. It provides new API cxgb4_alloc_sftid in LLD for getting stid in case of LE hash collision path. This new stid will be used to open server filter in the filter region. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-19cxgb4: Add T4 filter supportVipul Pandya
The T4 architecture is capable of filtering ingress packets at line rate using the rule in TCAM. If packet hits a rule in the TCAM then it can be either dropped or passed to the receive queues based on a rule settings. This patch adds framework for managing filters and to use T4's filter capabilities. It constructs a Firmware Filter Work Request which writes the filter at a specified index to get the work done. It hosts shadow copy of ingress filter entry to check field size limitations and save memory in the case where the filter table is large. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-12-18net: fec: forbid FEC_PTP on SoCs that do not supportShawn Guo
Beside imx6q, the kernel built from imx_v6_v7_defconfig is also supposed to be running on other IMX SoCs that do not have the PTP block. Before fec driver gets fixed to run-time detect target hardware rather than conditional compiling with #ifdef CONFIG_FEC_PTP, let's give it a quick fix in Kconfig to forbid FEC_PTP on those IMX SoCs that do not support PTP. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18be2net: fix wrong frag_idx reported by RX CQSathya Perla
The RX CQ can report completions with invalid frag_idx when the RXQ that was *previously* using it, was not cleaned up properly. This hits a BUG_ON() in be2net. When completion coalescing is enabled on a CQ, an explicit CQ-notify (with rearm) is needed for each compl, to flush partially coalesced CQ entries that are pending DMA. In be_close(), this fix now notifies CQ for each compl, waits explicitly for the flush compl to arrive and complains if it doesn't arrive. Also renaming be_crit_error() to be_hw_error() as it's the more appropriate name and to convey that we don't wait for the flush compl only when a HW error has occurred. Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18be2net: fix be_close() to ensure all events are ack'edSathya Perla
In be_close(), be_eq_clean() must be called after all RX/TX/MCC queues have been cleaned to ensure that any events caused while cleaning up completions are notified/acked. Not clearing all events can cause upredictable behaviour when RX rings are re-created in the subsequent be_open(). Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc update from Benjamin Herrenschmidt: "The main highlight is probably some base POWER8 support. There's more to come such as transactional memory support but that will wait for the next one. Overall it's pretty quiet, or rather I've been pretty poor at picking things up from patchwork and reviewing them this time around and Kumar no better on the FSL side it seems..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits) powerpc+of: Rename and fix OF reconfig notifier error inject module powerpc: mpc5200: Add a3m071 board support powerpc/512x: don't compile any platform DIU code if the DIU is not enabled powerpc/mpc52xx: use module_platform_driver macro powerpc+of: Export of_reconfig_notifier_[register,unregister] powerpc/dma/raidengine: add raidengine device powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct powerpc/mpc85xx: Change spin table to cached memory powerpc/fsl-pci: Add PCI controller ATMU PM support powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS] powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers powerpc: Disable relocation on exceptions when kexecing powerpc: Enable relocation on during exceptions at boot powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function powerpc: Add wrappers to enable/disable relocation on exceptions powerpc: Add set_mode hcall powerpc: Setup relocation on exceptions for bare metal systems powerpc: Move initial mfspr LPCR out of __init_LPCR powerpc: Add relocation on exception vector handlers ...
2012-12-17cdc_ether: cleanup: use USB_DEVICE_AND_INTERFACE_INFO for Novatel 551/E362Dan Williams
Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-17qmi_wwan/cdc_ether: add Dell Wireless 5800 (Novatel E362) USB IDsDan Williams
Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable@vger.kernel.org Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0Rusty Russell
We simplified virtqueue_add_buf(), make it clear in the callers. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-12-18virtio_net: don't rely on virtqueue_add_buf() returning capacity.Rusty Russell
Now we can easily use vq->num_free to determine if there are descriptors left in the queue, we're about to change virtqueue_add_buf() to return 0 on success. The virtio_net driver is the only one which actually uses the return value, so change that. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-18virtio-net: remove unused skb_vnet_hdr->num_sg fieldMichael S. Tsirkin
[Split from "correct capacity math on ring full" -- Rusty] Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-18virtio-net: correct capacity math on ring fullMichael S. Tsirkin
Capacity math on ring full is wrong: we are looking at num_sg but that might be optimistic because of indirect buffer use. The implementation also penalizes fast path with extra memory accesses for the benefit of ring full condition handling which is slow path. It's easy to query ring capacity so let's do just that. This change also makes it easier to move vnet header for tx around as follow-up patch does. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-17tuntap: fix sparse warningJason Wang
Make tun_enable_queue() static to fix the sparse warning: drivers/net/tun.c:399:19: sparse: symbol 'tun_enable_queue' was not declared. Should it be static? Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-17bnx2x: use prandom_bytes()Akinobu Mita
Use prandom_bytes() to fill rss key with pseudo-random bytes. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Artem Bityutskiy <dedekind1@gmail.com> Cc: David Laight <david.laight@aculab.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Michel Lespinasse <walken@google.com> Cc: Robert Love <robert.w.love@intel.com> Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17drivers: remove reference to feature-removal-schedule.txtTao Ma
In commit 9c0ece069b32 ("Get rid of Documentation/feature-removal.txt"), Linus removed feature-removal-schedule.txt from Documentation, but there is still some reference to this file. So remove them. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt
Brings some 52xx updates. Also manually merged tools/perf/perf.h. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-12-17wireless: fix Atheros drivers compilationVladimir Kondratiev
Bug introduced in commit: wireless: allow Atheros card to not depend on ath.ko Commit in question changed CONFIG_ATH_COMMON to CONFIG_ATH_CARDS as "Atheros card" indication in drivers/net/wireless/ath/Kconfig but it is used also by drivers/net/wireless/Makefile If there are only Atheros cards that do not require ATH_COMMON, whole Makefile for Atheros cards was not executed; and as result, driver won't compile in this case. Change in CONFIG_ option name should be reflected in the drivers/net/wireless/Makefile Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Tested-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-17rt2x00: zero-out rx_statusGabor Juhos
In commit 'mac80211: support radiotap vendor namespace RX data' new fields were added to 'struct ieee80211_rx_status' and those fileds must be zeroed. However the rt2x00 driver stores driver specific data in the cb array of the rx skbs, so the fields might contain garbage and this can cause unexpected behaviour. The rt2x00 driver from the compat-wireless-2012-12-01 tarball caused the following warning: WARNING: at /devel/ramips/build_dir/target-mipsel_r2_uClibc-0.9.33.2/linux-ramips_rt305x/ compat-wireless-2012-12-01/net/mac80211/rx.c:115 ieee80211_rx_irqsafe+0x274/0xbcc [mac80211]() Modules linked in: dwc_otg ledtrig_usbdev nf_nat_irc nf_nat_ftp nf_conntrack_irc nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat pppoe xt_conntrack xt_CT xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack pppox ipt_REJECT xt_TCPMSS xt_comment xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc rt2800pci(O) rt2800lib(O) rt2x00soc(O) rt2x00pci(O) rt2x00lib(O) mac80211(O) usbcore usb_common nls_base crc_itu_t crc_ccitt eeprom_93cx6 cfg80211(O) compat(O) arc4 aes_generic crypto_blkcipher cryptomgr aead crypto_hash crypto_algapi leds_gpio button_hotplug(O) gpio_keys_polled input_polldev input_core Call Trace: [<801e96b4>] dump_stack+0x8/0x34 [<80010a9c>] warn_slowpath_common+0x78/0xa4 [<80010ae0>] warn_slowpath_null+0x18/0x24 [<80a9710c>] ieee80211_rx_irqsafe+0x274/0xbcc [mac80211] The patch ensures that each field gets initialized with zeroes. Cc: <users@rt2x00.serialmonkey.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-17tuntap: reset network header before calling skb_get_rxhash()Eric Dumazet
Commit 499744209b2c (tuntap: dont use skb after netif_rx_ni(skb)) introduced another bug. skb_get_rxhash() needs to access the network header, and it was set for us in netif_rx_ni(). We need to reset network header or else skb_flow_dissect() behavior is out of control. Reported-and-tested-by: Kirill A. Shutemov <kirill@shutemov.name> Tested-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-15i2400m: add Intel 6150 device IDsDan Williams
Add device IDs for WiMAX function of Intel 6150 cards. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-15can: sja1000: fix compilation on x86Marc Kleine-Budde
Since commit: 04df251 can: sja1000: Make sja1000_of_platform selectable and compilable on SPARC the driver can be activated on non powerpc platform like x86 or sparc. Without this patch the driver fails to compile on platform that don't define NO_IRQ, like x86. Reported-by: Randy Dunlap <rdunlap@infradead.org> Cc: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson: "This is a branch with updates for Marvell's mvebu/kirkwood platforms. They came in late-ish, and were heavily interdependent such that it didn't make sense to split them up across the cross-platform topic branches. So here they are (for the second release in a row) in a branch on their own." * tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits) arm: l2x0: add aurora related properties to OF binding arm: mvebu: add Aurora L2 Cache Controller to the DT arm: mvebu: add L2 cache support dma: mv_xor: fix error handling path dma: mv_xor: fix error checking of irq_of_parse_and_map() dma: mv_xor: use request_irq() instead of devm_request_irq() dma: mv_xor: clear the window override control registers arm: mvebu: fix address decoding armada_cfg_base() function ARM: mvebu: update defconfig with I2C and RTC support ARM: mvebu: Add SATA support for OpenBlocks AX3-4 ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4 ARM: mvebu: Add support for I2C on OpenBlocks AX3-4 ARM: mvebu: Add support for I2C controllers in Armada 370/XP arm: mvebu: Add hardware I/O Coherency support arm: plat-orion: Add coherency attribute when setup mbus target arm: dma mapping: Export a dma ops function arm_dma_set_mask arm: mvebu: Add SMP support for Armada XP arm: mm: Add support for PJ4B cpu and init routines arm: mvebu: Add IPI support via doorbells arm: mvebu: Add initial support for power managmement service unit ...
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