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2013-10-18gianfar: Simplify MQ polling to avoid soft lockupClaudiu Manoil1-49/+38
Under certain low traffic conditions, the single core devices with multiple Rx/Tx queues (MQ mode) may reach soft lockup due to gfar_poll not returning in proper time. The following exception was obtained using iperf on a 100Mbit half-duplex link, for a p1010 single core device: BUG: soft lockup - CPU#0 stuck for 23s! [iperf:2847] Modules linked in: CPU: 0 PID: 2847 Comm: iperf Not tainted 3.12.0-rc3 #16 task: e8bf8000 ti: eeb16000 task.ti: ee646000 NIP: c0255b6c LR: c0367ae8 CTR: c0461c18 REGS: eeb17e70 TRAP: 0901 Not tainted (3.12.0-rc3) MSR: 00029000 <CE,EE,ME> CR: 44228428 XER: 20000000 GPR00: c0367ad4 eeb17f20 e8bf8000 ee01f4b4 00000008 ffffffff ffffffff 00000000 GPR08: 000000c0 00000008 000000ff ffffffc0 000193fe NIP [c0255b6c] find_next_bit+0xb8/0xc4 LR [c0367ae8] gfar_poll+0xc8/0x1d8 Call Trace: [eeb17f20] [c0367ad4] gfar_poll+0xb4/0x1d8 (unreliable) [eeb17f70] [c0422100] net_rx_action+0xa4/0x158 [eeb17fa0] [c003ec6c] __do_softirq+0xcc/0x17c [eeb17ff0] [c000c28c] call_do_softirq+0x24/0x3c [ee647cc0] [c0004660] do_softirq+0x6c/0x94 [ee647ce0] [c003eb9c] local_bh_enable+0x9c/0xa0 [ee647cf0] [c0454fe8] tcp_prequeue_process+0xa4/0xdc [ee647d10] [c0457e44] tcp_recvmsg+0x498/0x96c [ee647d80] [c047b630] inet_recvmsg+0x40/0x64 [ee647da0] [c040ca8c] sock_recvmsg+0x90/0xc0 [ee647e30] [c040edb8] SyS_recvfrom+0x98/0xfc To prevent this, the outer while() loop has been removed allowing gfar_poll() to return faster even if there's still budget left. Also, there's no need to recompute the budget per Rx queue anymore. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: update version to 5.3.51Himanshu Madhani1-2/+2
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Skip unknown entry type while collecting firmware dumpShahed Shaikh1-22/+19
o Driver aborts the minidump collection operation when it finds an unknown entry opcode. This patch skips unknown entry type and resumes the minidump collection operation. o Removed a comparision of collected dump size with expected dump size. Size may differ when driver decides to skip an entry. Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: dcb code cleanup and refactoring.Sucheta Chakraborty8-228/+207
o Move dcb specific function definitions to dcb files. o Move dcb specific variables to qlcnic_dcb structure. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Remove redundant eSwitch enable commandsSony Chacko3-26/+12
When more than one NIC physical functions are enabled on a port, eSwitch on that port gets enabled automatically. Driver need not explicitly enable the eSwitch. Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Update ethtool standard pause settings.Jitendra Kalsaria2-3/+18
Update ethtool standard pause parameter settings and display Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Firmware dump collection when auto recovery is disabled.Pratik Pujar2-1/+17
o Allow collecting the firmware dump of halted firmware when auto recovery is disabled. Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Enhance ethtool to display ring indices and interrupt maskPratik Pujar2-18/+44
o Updated ethtool -d <ethX> option to display ring indices for Transmit(Tx), Receive(Rx), and Status(St) rings. o Updated ethtool -d <ethX> option to display ring interrupt mask for Transmit(Tx), and Status(St) rings. Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18qlcnic: Print informational messages only once during driver load.Sucheta Chakraborty4-16/+22
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: enic: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: cxgb4vf: remove unnecessary pci_set_drvdata()Jingoo Han1-3/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: cxgb2: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: cxgb3: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: cxgb4: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: bna: remove unnecessary pci_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: tg3: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: bnx2x: remove unnecessary pci_set_drvdata()Jingoo Han1-3/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: bnx2: remove unnecessary pci_set_drvdata()Jingoo Han1-3/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: alx: remove unnecessary pci_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: amd8111e: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: pcnet32: remove unnecessary pci_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Don Fry <pcnet32@frontier.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: starfire: remove unnecessary pci_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: 8390: remove unnecessary pci_set_drvdata()Jingoo Han1-3/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18net: typhoon: remove unnecessary pci_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: David Dillow <dave@thedillows.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-18Merge branch 'for-davem' of ↵David S. Miller59-765/+10639
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== This is a batch of updates intended for the 3.13 stream... The biggest item of interest in here is wcn36xx, the new mac80211 driver for Qualcomm WCN3660/WCN3680 hardware. Regarding the mac80211 bits, Johannes says: "We have an assortment of cleanups and new features, of which the biggest one is probably the channel-switch support in IBSS. Nothing else really stands out much." On top of that, the ath9k and rt2x00 get a lot of update action from Felix Fietkau and Gabor Juhos, respectively. There are a handful of updates to other drivers here and there as well. Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17xen-netback: enable IPv6 TCP GSO to the guestPaul Durrant4-16/+76
This patch adds code to handle SKB_GSO_TCPV6 skbs and construct appropriate extra or prefix segments to pass the large packet to the frontend. New xenstore flags, feature-gso-tcpv6 and feature-gso-tcpv6-prefix, are sampled to determine if the frontend is capable of handling such packets. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17xen-netback: handle IPv6 TCP GSO packets from the guestPaul Durrant2-3/+15
This patch adds a xenstore feature flag, festure-gso-tcpv6, to advertise that netback can handle IPv6 TCP GSO packets. It creates SKB_GSO_TCPV6 skbs if the frontend passes an extra segment with the new type XEN_NETIF_GSO_TYPE_TCPV6 added to netif.h. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17xen-netback: Unconditionally set NETIF_F_RXCSUMPaul Durrant1-1/+1
There is no mechanism to insist that a guest always generates a packet with good checksum (at least for IPv4) so we must handle checksum offloading from the guest and hence should set NETIF_F_RXCSUM. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17xen-netback: add support for IPv6 checksum offload from guestPaul Durrant2-39/+205
For performance of VM to VM traffic on a single host it is better to avoid calculation of TCP/UDP checksum in the sending frontend. To allow this this patch adds the code necessary to set up partial checksum for IPv6 packets and xenstore flag feature-ipv6-csum-offload to advertise that fact to frontends. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17xen-netback: add support for IPv6 checksum offload to guestPaul Durrant3-5/+15
Check xenstore flag feature-ipv6-csum-offload to determine if a guest is happy to accept IPv6 packets with only partial checksum. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17bonding: add rtnl lock and remove read lock for bond sysfsdingtianhong1-13/+17
The bond_for_each_slave() will not be protected by read_lock(), only protected by rtnl_lock(), so need to replace read_lock() with rtnl_lock(). Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17bonding: use RCU protection for alb xmit pathdingtianhong2-15/+57
The commit 278b20837511776dc9d5f6ee1c7fabd5479838bb (bonding: initial RCU conversion) has convert the roundrobin, active-backup, broadcast and xor xmit path to rcu protection, the performance will be better for these mode, so this time, convert xmit path for alb mode. Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Cc: Nikolay Aleksandrov <nikolay@redhat.com> Cc: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17bonding: use RCU protection for 3ad xmit pathdingtianhong1-6/+4
The commit 278b20837511776dc9d5f6ee1c7fabd5479838bb (bonding: initial RCU conversion) has convert the roundrobin, active-backup, broadcast and xor xmit path to rcu protection, the performance will be better for these mode, so this time, convert xmit path for 3ad mode. Suggested-by: Nikolay Aleksandrov <nikolay@redhat.com> Suggested-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Cc: Nikolay Aleksandrov <nikolay@redhat.com> Cc: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17isdn: remove deprecated IRQF_DISABLEDMichael Opdenacker2-2/+2
This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17net/mlx4_core: Load higher level modules according to ports typeEyal Perry1-0/+29
Mellanox ConnectX architecture is: mlx4_core is the lower level PCI driver which register on the PCI id, and protocol specific drivers are depended on it: mlx4_en - for Ethernet and mlx4_ib for Infiniband. NIC could have multiple ports which can change their type dynamically. We use the request_module() call to load the relevant protocol driver when needed: on loading time or at port type change event. Signed-off-by: Eyal Perry <eyalpe@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17net/mlx4: Unused local variable in mlx4_opreq_actionAmir Vadai1-2/+0
Clean up warning added by commit fe6f700d "net/mlx4_core: Respond to operation request by firmware". Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17net/mlx4: Fix typo, move similar defs to same locationOr Gerlitz2-2/+2
Small code cleanup: 1. change MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN to MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN 2. put MLX4_SET_PORT_PRIO2TC and MLX4_SET_PORT_SCHEDULER in the same union with the other MLX4_SET_PORT_yyy Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17net/mlx4: Clean the code to eliminate trivial build warningsOr Gerlitz3-5/+4
Remove code that triggers trivial build warnings. drivers/net/ethernet/mellanox/mlx4/cmd.c: In function ‘mlx4_set_vf_vlan’: drivers/net/ethernet/mellanox/mlx4/cmd.c:2256: warning: variable ‘vf_oper’ set but not used drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_mode’: drivers/net/ethernet/mellanox/mlx4/mcg.c:648: warning: comparison of unsigned expression < 0 is always false drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_id’: drivers/net/ethernet/mellanox/mlx4/mcg.c:685: warning: comparison of unsigned expression < 0 is always false drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_hw_rule_sz’: drivers/net/ethernet/mellanox/mlx4/mcg.c:712: warning: comparison of unsigned expression < 0 is always false drivers/net/ethernet/mellanox/mlx4/fw.c: In function ‘mlx4_opreq_action’: drivers/net/ethernet/mellanox/mlx4/fw.c:1732: warning: variable ‘type_m’ set but not used drivers/net/ethernet/mellanox/mlx4/srq.c:302: warning: no previous prototype for ‘mlx4_srq_lookup’ Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-17Merge branch 'master' of ↵John W. Linville59-765/+10639
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-10-14rt2x00: rt2800lib: remove duplicate rf_vals for RF3053Kevin Lo1-72/+3
lready have rf_vals_3x with same values. Hence rf_vals_3053 is removed in this patch. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Paul Menzel <paulepanter@users.sourceforge.net> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14rt2x00: rt2800lib: fix RF registers for RT5390/RT5392Kevin Lo1-3/+2
Update rf registers to use the same values that the MediaTek/Ralink reference driver DPO_RT5572_LinuxSTA_2.6.1.3_20121022 uses. References: RF5390RegTable in chips/rt5390.c RF5392RegTable in chips/rt5390.c Tested on TP-Link TL-WN727N and D-Link DWA-140 Rev.b3 usb wifi dongles. Signed-off-by: Kevin Lo <kevlo@kevlo.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14mwifiex: use alloc_workqueue() functionAmitkumar Karwar1-1/+3
It replaces deprecated create_workqueue(). Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove references to hw->confFelix Fietkau5-20/+15
Accessing it to get the current operating channel is racy and in the way of further channel handling related changes Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: make ath9k_uses_beacons staticFelix Fietkau2-2/+1
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: remove sc->config.cabqReadyTimeFelix Fietkau4-12/+1
It is not exposed as a configuration option anyway Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: move channel change code to ath_set_channelFelix Fietkau1-72/+78
Preparation for adding the scanning state machine to ath9k Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: make ath9k_cmn_update_ichannel staticFelix Fietkau5-21/+17
Rework its wrapper function to make it more generic, using it as a replacement for previous calls to ath9k_cmn_update_ichannel. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: simplify channel flagsFelix Fietkau4-130/+50
There was some duplication between channelFlags and chanmode, as well as a lot of redundant checks based on the combinations of flags. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove IS_CHAN_OFDM()Felix Fietkau2-7/+2
The hardware is always configured with OFDM support enabled Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove IS_CHAN_B()Felix Fietkau6-22/+13
Hardware 802.11b-only mode isn't supported by the driver (the device is configured for 802.11n/g instead). Simplify the code by removing checks for it. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>