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2013-09-03net: calxedaxgmac: update ring buffer tx_head after barriersRob Herring
Ensure that the descriptor writes are visible before the ring buffer head is updated. Since writel is a barrier, we can simply update the head after the writel. Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: calxedaxgmac: fix possible skb free before tx completeRob Herring
The TX completion code may have freed an skb before the entire sg list was transmitted. The DMA unmap calls for the fragments could also get skipped. Now set the skb pointer on every entry in the ring, not just the head of the sg list. We then use the FS (first segment) bit in the descriptors to determine skb head vs. fragment. This also fixes similar bug in xgmac_free_tx_skbufs where clean-up of a sg list that wraps at the end of the ring buffer would not get unmapped. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: calxedaxgmac: fix race between xgmac_tx_complete and xgmac_tx_errRob Herring
It is possible for the xgmac_tx_complete to run concurrently with xgmac_tx_err since there are no locks. Fix this by moving the tx error handling to a workqueue so we can disable napi while we reset the transmitter. Reported-by: Andreas Herrmann <andreas.herrmann@calxeda.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: calxedaxgmac: read correct field in xgmac_desc_get_buf_lenRob Herring
xgmac_desc_get_buf_len appears to have a copy/paste error. flags is the wrong field to read. We should be reading buf_size field. cpu_to_le32 should also be le32_to_cpu. This never really mattered as this function is only used for DMA mapping calls which happen to be nops with coherent DMA. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: calxedaxgmac: remove NETIF_F_FRAGLIST settingRob Herring
The xgmac does not actually handle frag lists, so this option should not be set. It does not appear to have had any impact though. Reported-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03be2net: set and query VEB/VEPA mode of the PF interfaceAjit Khaparde
SkyHawk-R can support VEB or VEPA mode. This patch will allow the user to set/query this switch setting. Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03gianfar: Fix reported number of sent bytes to BQLClaudiu Manoil
Fix the amount of sent bytes reported to BQL by reporting the number of bytes on wire in the xmit routine, and recording that value for each skb in order to be correctly confirmed on Tx confirmation cleanup. Reporting skb->len to BQL just before exiting xmit is not correct due to possible insertions of TOE block and alignment bytes in the skb->data, which are being stripped off by the controller before transmission on wire. This led to mismatch of (incorrectly) reported bytes to BQL b/w xmit and Tx confirmation, resulting in Tx timeout firing, for the h/w tx timestamping acceleration case. There's no easy way to obtain the number of bytes on wire in the Tx confirmation routine, so skb->cb is used to convey that information from xmit to Tx confirmation, for now (as proposed by Eric). Revived the currently unused GFAR_CB() construct for that purpose. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03netconsole: avoid a crash with multiple sysfs writersDan Aloni
When my 'ifup eth' script was fired multiple times and ran concurrent on my laptop, for some obscure /etc scripting reason, it was revealed that the store_enabled() function in netconsole doesn't handle it nicely, as recorded by the Oops below (a syslog paste, but not mangled too much to prevent from discerning the traceback). On Linux 3.10.4, this patch seeks to remedy the problem, and it has been running stable on my laptop for a few days. [52608.609325] BUG: unable to handle kernel NULL pointer dereference at 00000000000003e0 [52608.609331] IP: [<ffffffff81532a17>] __netpoll_cleanup+0x27/0xe0 [52608.609339] PGD 15e51a067 PUD 15433e067 PMD 0 [52608.609343] Oops: 0000 [#1] SMP re firewire_ohci firewire_core crc_itu_t [last unloaded: kvm_intel] [52608.609347] Modules linked in: kvm_intel tun vfat fat ppdev parport_pc parport fuse ipt_MASQUERADE usb_storage nf_conntrack_netbios_ns nf_conn [..garbled..] [52608.609433] RAX: 0000000000000000 RBX: ffff880210bbcc68 RCX: 0000000000000000 [52608.609435] RDX: 0000000000000000 RSI: ffff8801ba447da0 RDI: ffff880210bbcc68 [52608.609437] RBP: ffff8801ba447e18 R08: 0000000000000000 R09: 0000000000000001 [52608.609439] R10: 000000000000000a R11: f000000000000000 R12: ffff880210bbcc68 [52608.609441] R13: ffff88020bc41000 R14: 0000000000000002 R15: 000000000000000200000000000 [52608.609443] FS: 00007f38d7bff740(0000) GS:ffff88021dc40000(0000) knlGS:0000000000000000 [52608.609446] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003300000000001427e0 [52608.609448] CR2: 00000000000003e0 CR3: 0000000154103000 CR4: 00000000001427e0 [52608.609450] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [52608.609452] netpoll: netconsole: local port 6665ess 10.0.0.27 [52608.609454] netpoll: netconsole: local IPv4 address 10.0.0.27 [52608.609456] netpoll: netconsole: interface 'em1' [52608.609457] netpoll: netconsole: remote port 514ress 10.0.0.15 [52608.609459] netpoll: netconsole: remote IPv4 address 10.0.0.15:65:a8:9a:c7 [52608.609461] netpoll: netconsole: remote ethernet address 1c:6f:65:a8:9a:c7 [52608.609463] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [52608.609464] Stack:801ba447e08 ffff880210bbcc68 ffffffffffffffea ffff88020bc41000 [52608.609466] ffff8801ba447e08 ffff880210bbcc68 ffffffffffffffea ffff88020bc41000 [52608.609471] 0000000000000002 0000000000000002 ffff8801ba447e38 ffffffff81532af4 [52608.609475] 0000000000000000 ffff880210bbcc00 ffff8801ba447e78 ffffffff81420e7c [52608.609479] Call Trace: [52608.609484] [<ffffffff81532af4>] netpoll_cleanup+0x24/0x50 [52608.609489] [<ffffffff81420e7c>] store_enabled+0x5c/0xe0 [52608.609492] [<ffffffff81420abe>] netconsole_target_attr_store+0x2e/0x40 [52608.609498] [<ffffffff811ff2a2>] configfs_write_file+0xd2/0x130 [52608.609503] [<ffffffff81188f95>] vfs_write+0xc5/0x1f0 [52608.609506] [<ffffffff81189482>] SyS_write+0x52/0xa0/0x10 [52608.609511] [<ffffffff81628c2e>] ? do_page_fault+0xe/0x10 [52608.609516] [<ffffffff8162d402>] system_call_fastpath+0x16/0x1b [52608.609517] Code: 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 48 83 ec 30 4c 89 65 e0 48 89 5d d8 49 89 fc 4c 89 6d e8 4c 89 75 f0 4c 89 7d f8 48 8 [..garbled..] [52608.609559] RIP [<ffffffff81532a17>] __netpoll_cleanup+0x27/0xe0 [52608.609563] RSP <ffff8801ba447de8> [52608.609564] CR2: 00000000000003e0 [52608.609567] ---[ end trace d25ec343349b61d2 ]--- Signed-off-by: Dan Aloni <alonid@postram.com> Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03sh_eth: Enable Rx descriptor word 0 shift for r8a7790Kouei Abe
This corrects an oversight when r8a7790 support was added to sh_eth. Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03sh_eth: Fix cache invalidation omission of receive bufferKouei Abe
Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03bonding: use rlb_client_info->vlan_id instead of ->tagVeaceslav Falico
Store VID in ->vlan_id (if any), and remove the useless ->tag. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03bonding: remove bond_vlan_used()Veaceslav Falico
We're using it currently to verify if we have vlans before getting the tag from the skb we're about to send. It's useless because the vlan_get_tag() verifies if the skb has the tag (and returns an error if not), and we can receive tagged skbs only if we *already* have vlans. Plus, the current RCUed implementation is kind of useless anyway - the we can remove the last vlan in the moment we return from the function. So remove the only usage of it and the whole function. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03Merge branch 'for-davem' of git://gitorious.org/linux-can/linux-can-nextDavid S. Miller
Marc Kleine-Budde says: ==================== this is a pull request for net-next. There are two patches from Gerhard Sittig, which improves the clock handling on mpc5121. Oliver Hartkopp provides a patch that adds a per rule limitation of frame hops. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== Please accept this batch of updates intended for the 3.12 stream. For the mac80211 bits, Johannes says this: "This time I have various improvements all over the place: IBSS, mesh, testmode, AP client powersave handling, one of the rare rfkill patches and some code cleanup." Also for mac80211: "And I also have some more changes for -next, just a few small fixes and improvements, nothing really stands out." And for iwlwifi: "This time I have some powersave work (notably uAPSD support), CQM offloads, support for a new firmware API and various code cleanups." Regarding the Bluetooth bits, Gustavo says: "Patches to 3.12, here we have: * implementation of a proper tty_port for RFCOMM devices, this fixes some issues people were seeing lately in the kernel. * Add voice_setting option for SCO, it is used for SCO Codec selection * bugfixes, small improvements and clean ups" For the NFC bits, Samuel says: "With this one we have: - A few pn533 improvements and minor fixes. Testing our pn533 driver against Google's NCI stack triggered a few issues that we fixed now. We also added Tx fragmentation support to this driver. - More NFC secure element handling. We added a GET_SE netlink command for getting all the discovered secure elements, and we defined 2 additional secure element netlink event (transaction and connectivity). We also fixed a couple of typos and copy-paste bugs from the secure element handling code. - Firmware download support for the pn544 driver. This chipset can enter a special mode where it's waiting for firmware blobs to replace the already flashed one. We now support that mode." With repect to the ath tree, Kalle says: "New features in ath10k are rx/tx checsumming in hw and survey scan implemented by Michal. Also he made fixes to different areas of the driver, most notable being fixing the case when using two streams and reducing the number of interface combinations to avoid firmware crashes. Bartosz did a clean related to how we handle SoC power save in PCI layer. For ath6kl Mohammed and Vasanth sent each a patch to fix two infrequent crashes." I also pulled the wireless tree into wireless-next to support a request from Johannes. On top of all that, there are the usual sort of driver updates. The mwifiex, brcmfmac, brcmsmac, ath9k, and rt2x00 drivers all get some attention, as does the bcma bus and a few other random bits here and there. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03virtio-net: Set RXCSUM feature if GUEST_CSUM is availableThomas Huth
If the VIRTIO_NET_F_GUEST_CSUM virtio feature is available, the guest does not have to calculate the checksums on all received packets. This is pretty much the same feature as RX checksum offloading on real network cards, so the virtio-net driver should report this by setting the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she can see whether the virtio-net interface has to calculate RX checksums or not. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03Merge branch 'for-3.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata changes from Tejun Heo: "Two interesting changes. - libata acpi handling has been restructured so that the association between ata devices and ACPI handles are less convoluted. This change shouldn't change visible behavior. - Queued TRIM support, which enables sending TRIM to the device without draining in-flight RW commands, is added. Currently only enabled for ahci (and likely to stay that way for the foreseeable future). Other changes are driver-specific updates / fixes" * 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: bugfix: Remove __le32 in ata_tf_to_fis() libata: acpi: Remove ata_dev_acpi_handle stub in libata.h libata: Add support for queued DSM TRIM libata: Add support for SEND/RECEIVE FPDMA QUEUED libata: Add H2D FIS "auxiliary" port flag libata: Populate host-to-device FIS "auxiliary" field ata: acpi: rework the ata acpi bind support sata, highbank: send extra clock cycles in SGPIO patterns sata, highbank: set tx_atten override bits devicetree: create a separate binding description for sata_highbank drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource sata highbank: enable 64-bit DMA mask when using LPAE ata: pata_samsung_cf: add missing __iomem annotation ata: pata_arasan: Staticize local symbols sata_mv: Remove unneeded CONFIG_HAVE_CLK ifdefs ata: use dev_get_platdata() sata_mv: Remove unneeded forward declaration libata: acpi: remove dead code for ata_acpi_(un)bind libata: move 'struct ata_taskfile' and friends from ata.h to libata.h
2013-09-03staging: vt6655: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Cc: Forest Bond <forest@alittletooquiet.net> Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: libertas: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Acked-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: hostap: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Cc: Jouni Malinen <j@w1.fi> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: airo: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Acked-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: team: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03net: macvlan: inherit addr_assign_type along with dev_addrBjørn Mork
A device inheriting a random or set address should reflect this in its addr_assign_type. Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03Merge tag 'pci-v3.12-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: PCI device hotplug: - Use PCIe native hotplug, not ACPI hotplug, when possible (Neil Horman) - Assign resources on per-host bridge basis (Yinghai Lu) MPS (Max Payload Size): - Allow larger MPS settings below hotplug-capable Root Port (Yijing Wang) - Add warnings about unsafe MPS settings (Yijing Wang) - Simplify interface and messages (Bjorn Helgaas) SR-IOV: - Return -ENOSYS on non-SR-IOV devices (Stefan Assmann) - Update NumVFs register when disabling SR-IOV (Yijing Wang) Virtualization: - Add bus and slot reset support (Alex Williamson) - Fix ACS (Access Control Services) issues (Alex Williamson) Miscellaneous: - Simplify PCIe Capability accessors (Bjorn Helgaas) - Add pcibios_pm_ops for arch-specific hibernate stuff (Sebastian Ott) - Disable decoding during BAR sizing only when necessary (Zoltan Kiss) - Delay enabling bridges until they're needed (Yinghai Lu) - Split Designware support into Synopsys and Exynos parts (Jingoo Han) - Convert class code to use dev_groups (Greg Kroah-Hartman) - Cleanup Designware and Exynos I/O access wrappers (Seungwon Jeon) - Fix bridge I/O window alignment (Bjorn Helgaas) - Add pci_wait_for_pending_transaction() (Casey Leedom) - Use devm_ioremap_resource() in Marvell driver (Tushar Behera) * tag 'pci-v3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (63 commits) PCI/ACPI: Fix _OSC ordering to allow PCIe hotplug use when available PCI: exynos: Add I/O access wrappers PCI: designware: Drop "addr" arg from dw_pcie_readl_rc()/dw_pcie_writel_rc() PCI: Remove pcie_cap_has_devctl() PCI: Support PCIe Capability Slot registers only for ports with slots PCI: Remove PCIe Capability version checks PCI: Allow PCIe Capability link-related register access for switches PCI: Add offsets of PCIe capability registers PCI: Tidy bitmasks and spacing of PCIe capability definitions PCI: Remove obsolete comment reference to pci_pcie_cap2() PCI: Clarify PCI_EXP_TYPE_PCI_BRIDGE comment PCI: Rename PCIe capability definitions to follow convention PCI: Warn if unsafe MPS settings detected PCI: Fix MPS peer-to-peer DMA comment syntax PCI: Disable decoding for BAR sizing only when it was actually enabled PCI: Add comment about needing pci_msi_off() even when CONFIG_PCI_MSI=n PCI: Add pcibios_pm_ops for optional arch-specific hibernate functionality PCI: Don't restrict MPS for slots below Root Ports PCI: Simplify MPS test for Downstream Port PCI: Remove unnecessary check for pcie_get_mps() failure ...
2013-09-04Merge tag 'drm/for-3.12-rc1' of git://anongit.freedesktop.org/tegra/linux ↵Dave Airlie
into drm-next drm/tegra: Changes for v3.12-rc1 Only a couple of small patches this time around. These are mostly fixes for minor bugs that showed up, but there is also some preparatory work that will come in handy for future patches. * tag 'drm/for-3.12-rc1' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: Parse device tree earlier gpu: host1x: Sort drivers by probe order gpu: host1x: Check for valid host1x pointer gpu: host1x: returning success instead of -ENOMEM gpu: host1x: fix an integer overflow check drm/tegra: hdmi: Make sure clock is enabled before dumping registers
2013-09-03Merge tag 'pm+acpi-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael Wysocki: 1) ACPI-based PCI hotplug (ACPIPHP) subsystem rework and introduction of Intel Thunderbolt support on systems that use ACPI for signalling Thunderbolt hotplug events. This also should make ACPIPHP work in some cases in which it was known to have problems. From Rafael J Wysocki, Mika Westerberg and Kirill A Shutemov. 2) ACPI core code cleanups and dock station support cleanups from Jiang Liu and Rafael J Wysocki. 3) Fixes for locking problems related to ACPI device hotplug from Rafael J Wysocki. 4) ACPICA update to version 20130725 includig fixes, cleanups, support for more than 256 GPEs per GPE block and a change to make the ACPI PM Timer optional (we've seen systems without the PM Timer in the field already). One of the fixes, related to the DeRefOf operator, is necessary to prevent some Windows 8 oriented AML from causing problems to happen. From Bob Moore, Lv Zheng, and Jung-uk Kim. 5) Removal of the old and long deprecated /proc/acpi/event interface and related driver changes from Thomas Renninger. 6) ACPI and Xen changes to make the reduced hardware sleep work with the latter from Ben Guthro. 7) ACPI video driver cleanups and a blacklist of systems that should not tell the BIOS that they are compatible with Windows 8 (or ACPI backlight and possibly other things will not work on them). From Felipe Contreras. 8) Assorted ACPI fixes and cleanups from Aaron Lu, Hanjun Guo, Kuppuswamy Sathyanarayanan, Lan Tianyu, Sachin Kamat, Tang Chen, Toshi Kani, and Wei Yongjun. 9) cpufreq ondemand governor target frequency selection change to reduce oscillations between min and max frequencies (essentially, it causes the governor to choose target frequencies proportional to load) from Stratos Karafotis. 10) cpufreq fixes allowing sysfs attributes file permissions to be preserved over suspend/resume cycles Srivatsa S Bhat. 11) Removal of Device Tree parsing for CPU device nodes from multiple cpufreq drivers that required some changes related to of_get_cpu_node() to be made in a few architectures and in the driver core. From Sudeep KarkadaNagesha. 12) cpufreq core fixes and cleanups related to mutual exclusion and driver module references from Viresh Kumar, Lukasz Majewski and Rafael J Wysocki. 13) Assorted cpufreq fixes and cleanups from Amit Daniel Kachhap, Bartlomiej Zolnierkiewicz, Hanjun Guo, Jingoo Han, Joseph Lo, Julia Lawall, Li Zhong, Mark Brown, Sascha Hauer, Stephen Boyd, Stratos Karafotis, and Viresh Kumar. 14) Fixes to prevent race conditions in coupled cpuidle from happening from Colin Cross. 15) cpuidle core fixes and cleanups from Daniel Lezcano and Tuukka Tikkanen. 16) Assorted cpuidle fixes and cleanups from Daniel Lezcano, Geert Uytterhoeven, Jingoo Han, Julia Lawall, Linus Walleij, and Sahara. 17) System sleep tracing changes from Todd E Brandt and Shuah Khan. 18) PNP subsystem conversion to using struct dev_pm_ops for power management from Shuah Khan. * tag 'pm+acpi-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (217 commits) cpufreq: Don't use smp_processor_id() in preemptible context cpuidle: coupled: fix race condition between pokes and safe state cpuidle: coupled: abort idle if pokes are pending cpuidle: coupled: disable interrupts after entering safe state ACPI / hotplug: Remove containers synchronously driver core / ACPI: Avoid device hot remove locking issues cpufreq: governor: Fix typos in comments cpufreq: governors: Remove duplicate check of target freq in supported range cpufreq: Fix timer/workqueue corruption due to double queueing ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT ACPI / thermal: Add check of "_TZD" availability and evaluating result cpufreq: imx6q: Fix clock enable balance ACPI: blacklist win8 OSI for buggy laptops cpufreq: tegra: fix the wrong clock name cpuidle: Change struct menu_device field types cpuidle: Add a comment warning about possible overflow cpuidle: Fix variable domains in get_typical_interval() cpuidle: Fix menu_device->intervals type cpuidle: CodingStyle: Break up multiple assignments on single line cpuidle: Check called function parameter in get_typical_interval() ...
2013-09-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "The first patch is to address a long standing issue where INQUIRY vendor + model response data was not correctly padded with ASCII spaces, causing MSFT and Falconstor multipath stacks to not function with our LUNs. The second -> forth patches are additional iscsi-target regression fixes for the post >= v3.10 iser-target changes. The second and third are failure cases that have appeared during further testing, and the forth is only reproducible with malformed NOP packets. The fifth patch is a v3.11 specific regression caused by a recent optimization that showed up during WRITE I/O failure testing. I'll be sending Patch #1 and Patch #5 to Greg-KH separately for stable" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Fix se_cmd->state_list leak regression during WRITE failure iscsi-target: Fix potential NULL pointer in solicited NOPOUT reject iscsi-target: Fix iscsit_transport reference leak during NP thread reset iscsi-target: Fix ImmediateData=Yes failure regression in >= v3.10 target: Fix trailing ASCII space usage in INQUIRY vendor+model
2013-09-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull first round of SCSI updates from James Bottomley: "This patch set is a set of driver updates (ufs, zfcp, lpfc, mpt2/3sas, qla4xxx, qla2xxx [adding support for ISP8044 + other things]). We also have a new driver: esas2r which has a number of static checker problems, but which I expect to resolve over the -rc course of 3.12 under the new driver exception. We also have the error return that were discussed at LSF" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (118 commits) [SCSI] sg: push file descriptor list locking down to per-device locking [SCSI] sg: checking sdp->detached isn't protected when open [SCSI] sg: no need sg_open_exclusive_lock [SCSI] sg: use rwsem to solve race during exclusive open [SCSI] scsi_debug: fix logical block provisioning support when unmap_alignment != 0 [SCSI] scsi_debug: fix endianness bug in sdebug_build_parts() [SCSI] qla2xxx: Update the driver version to 8.06.00.08-k. [SCSI] qla2xxx: print MAC via %pMR. [SCSI] qla2xxx: Correction to message ids. [SCSI] qla2xxx: Correctly print out/in mailbox registers. [SCSI] qla2xxx: Add a new interface to update versions. [SCSI] qla2xxx: Move queue depth ramp down message to i/o debug level. [SCSI] qla2xxx: Select link initialization option bits from current operating mode. [SCSI] qla2xxx: Add loopback IDC-TIME-EXTEND aen handling support. [SCSI] qla2xxx: Set default critical temperature value in cases when ISPFX00 firmware doesn't provide it [SCSI] qla2xxx: QLAFX00 make over temperature AEN handling informational, add log for normal temperature AEN [SCSI] qla2xxx: Correct Interrupt Register offset for ISPFX00 [SCSI] qla2xxx: Remove handling of Shutdown Requested AEN from qlafx00_process_aen(). [SCSI] qla2xxx: Send all AENs for ISPFx00 to above layers. [SCSI] qla2xxx: Add changes in initialization for ISPFX00 cards with BIOS ...
2013-09-03NTB: Enable 32bit SupportJon Mason
Correct the issues on NTB that prevented it from working on x86_32 and modify the Kconfig to allow it to be permitted to be used in that environment as well. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NTB: Update Device IDsJon Mason
Add support for new Intel NTB devices on upcoming Xeon hardware. Since the Xeon hardware design is already in place in the driver, all that is needed are the new device ids. Remove the device IDs for NTB devs running in Transparent Bridge mode, as this driver is not being used for those devices. Rename the device IDs for NTB devs running in NTB-RP mode to better identify their usage model. "PS" to denote the Primary Side of NTB, and "SS" to denote the secondary side. The primary side is the interface exposed to the local system, and the secondary side is the interface exposed to the remote system. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NTB: BWD Link RecoveryJon Mason
The BWD NTB device will drop the link if an error is encountered on the point-to-point PCI bridge. The link will stay down until all errors are cleared and the link is re-established. On link down, check to see if the error is detected, if so do the necessary housekeeping to try and recover from the error and reestablish the link. There is a potential race between the 2 NTB devices recovering at the same time. If the times are synchronized, the link will not recover and the driver will be stuck in this loop forever. Add a random interval to the recovery time to prevent this race. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NTB: Xeon Errata WorkaroundJon Mason
There is a Xeon hardware errata related to writes to SDOORBELL or B2BDOORBELL in conjunction with inbound access to NTB MMIO Space, which may hang the system. To workaround this issue, use one of the memory windows to access the interrupt and scratch pad registers on the remote system. This bypasses the issue, but removes one of the memory windows from use by the transport. This reduction of MWs necessitates adding some logic to determine the number of available MWs. Since some NTB usage methodologies may have unidirectional traffic, the ability to disable the workaround via modparm has been added. See BF113 in http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-c5500-c3500-spec-update.pdf See BT119 in http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-family-spec-update.pdf Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NVMe: Handle ioremap failureKeith Busch
Decrement the number of queues required for doorbell remapping until the memory is successfully mapped for that size. Additional checks are done so that we don't call free_irq if it has already been freed. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Add pci suspend/resume driver callbacksKeith Busch
Used for going in and out of low power states. Resuming reuses the IO queues from the previous initialization, freeing any allocated queues that are no longer usable. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03clk: Move symbol export to proper locationThierry Reding
The __clk_get_flags() symbol is exported immediately following the clk_unprepare_unused_subtree() function. This is unusual, since a symbol export typically follows body of the function that it exports. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-03NVMe: Use normal shutdownKeith Busch
The NVMe spec recommends using the shutdown normal sequence when safely taking the controller offline instead of hitting CC.EN on the next start-up to reset the controller. The spec recommends a minimum of 1 second for the shutdown complete. This patch waits 2 seconds to be on the safe side. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Separate controller init from disk discoveryKeith Busch
This combines the controller initialization into one function, removing IO queue setup from namespace discovery, and creates symetric functions for device removal. The controller start and shutdown functions can now be called from resume/suspend context as well as probe/remove. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Separate queue alloc/free from create/deleteKeith Busch
This separates nvme queue allocation from creation, and queue deletion from freeing. This is so that we may in the future temporarily disable queues and reuse the same memory when bringing them back online, like coming back from suspend state. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Group pci related actions in functionsKeith Busch
This will make it easier to reuse these outside probe/remove. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Disk stats for read/write commands onlyKeith Busch
Flush and discard requests would previously mess up the accounting. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Bring up cdev on set feature failureKeith Busch
This patch creates the character device as long as a device's admin queues are usable so a user has an opprotunity to perform administration tasks. A device may be in a state that does not allow IO and setting the queue count feature in such a state returns an error. Previously the driver would bail and the controller would be unusable. Signed-off-by: Keith Busch <keith.busch@intel.com>
2013-09-03NVMe: Fix checkpatch issuesKeith Busch
Signed-off-by: Keith Busch <keith.busch@intel.com>
2013-09-03NVMe: Namespace IDs are unsignedMatthew Wilcox
The 'Number of Namespaces' read from the device was being treated as signed, which would cause us to not scan any namespaces for a device with more than 2 billion namespaces. That led to noticing that the namespace ID was also being treated as signed, which could lead to the result from NVME_IOCTL_ID being treated as an error code. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03tilegx: Add tty serial support for TILE-Gx on-chip UARTChris Metcalf
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-03Merge tag 'tty-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver patches from Greg KH: "Here's the big tty/serial driver pull request for 3.12-rc1. Lots of n_tty reworks to resolve some very long-standing issues, removing the 3-4 different locks that were taken for every character. This code has been beaten on for a long time in linux-next with no reported regressions. Other than that, a range of serial and tty driver updates and revisions. Full details in the shortlog" * tag 'tty-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (226 commits) hvc_xen: Remove unnecessary __GFP_ZERO from kzalloc serial: imx: initialize the local variable tty: ar933x_uart: add device tree support and binding documentation tty: ar933x_uart: allow to build the driver as a module ARM: dts: msm: Update uartdm compatible strings devicetree: serial: Document msm_serial bindings serial: unify serial bindings into a single dir serial: fsl-imx-uart: Cleanup duplicate device tree binding tty: ar933x_uart: use config_enabled() macro to clean up ifdefs tty: ar933x_uart: remove superfluous assignment of ar933x_uart_driver.nr tty: ar933x_uart: use the clk API to get the uart clock tty: serial: cpm_uart: Adding proper request of GPIO used by cpm_uart driver serial: sirf: fix the amount of serial ports serial: sirf: define macro for some magic numbers of USP serial: icom: move array overflow checks earlier TTY: amiserial, remove unnecessary platform_set_drvdata() serial: st-asc: remove unnecessary platform_set_drvdata() msm_serial: Send more than 1 character on the console w/ UARTDM msm_serial: Add support for non-GSBI UARTDM devices msm_serial: Switch clock consumer strings and simplify code ...
2013-09-03Merge tag 'staging-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging tree merge from Greg KH: "Here's the bit staging tree pull request for 3.12-rc1. Lots of staging driver updates, and fixes. Lustre is finally enabled in the build, and lots of cleanup started happening in it. There's a new wireless driver in here, and 2 new TTY drivers, which cause the overall lines added/removed to be quite large on the "added" side. The IIO driver updates are also coming through here, as they are tied to the staging iio drivers" * tag 'staging-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (942 commits) staging: dwc2: make dwc2_core_params documentation more complete staging: dwc2: validate the value for phy_utmi_width staging: dwc2: interpret all hwcfg and related register at init time staging: dwc2: properly mask the GRXFSIZ register staging: dwc2: remove redundant register reads staging: dwc2: re-use hptxfsiz variable staging: dwc2: simplify debug output in dwc_hc_init staging: dwc2: add missing shift staging: dwc2: simplify register shift expressions staging: dwc2: only read the snpsid register once staging: dwc2: unshift non-bool register value constants staging: dwc2: fix off-by-one in check for max_packet_count parameter staging: dwc2: remove specific fifo size constants Staging:BCM:DDRInit.c:Renaming __FUNCTION__ staging: bcm: remove Version.h file. staging: rtl8188eu: off by one in rtw_set_802_11_add_wep() staging: r8188eu: copying one byte too much staging: rtl8188eu: || vs && typo staging: r8188eu: off by one bugs staging: crystalhd: Resolve sparse 'different base types' warnings. ...
2013-09-03Merge tag 'driver-core-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ...
2013-09-03Merge tag 'char-misc-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc patches from Greg KH: "Here is the big char/misc driver pull request for 3.12-rc1 Lots of driver updates all over the char/misc tree, full details in the shortlog" * tag 'char-misc-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (62 commits) drivers: uio: Kconfig: add MMU dependancy for UIO drivers: uio: Add driver for Humusoft MF624 DAQ PCI card drivers: uio_pdrv_genirq: use dev_get_platdata() drivers: uio_pruss: use dev_get_platdata() drivers: uio_dmem_genirq: use dev_get_platdata() drivers: parport: Kconfig: exclude h8300 for PARPORT_PC drivers: misc: ti-st: fix potential race if st_kim_start fails Drivers: hv: vmbus: Do not attempt to negoatiate a new version prematurely misc: vmw_balloon: Remove braces to fix build for clang. Drivers: hv: vmbus: Fix a bug in the handling of channel offers vme: vme_ca91cx42.c: fix to pass correct device identity to free_irq() VMCI: Add support for virtual IOMMU VMCI: Remove non-blocking/pinned queuepair support uio: uio_pruss: remove unnecessary platform_set_drvdata() parport: amiga: remove unnecessary platform_set_drvdata() vme: vme_vmivme7805.c: add missing __iomem annotation vme: vme_ca91cx42.c: add missing __iomem annotation vme: vme_tsi148.c: add missing __iomem annotation drivers/misc/hpilo: Correct panic when an AUX iLO is detected uio: drop unused vma_count member in uio_device struct ...
2013-09-03Merge tag 'usb-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg KH: "Here's the big USB driver pull request for 3.12-rc1 Lots of USB driver fixes and updates. Nothing major, just the normal xhci, gadget, and other driver changes. Full details in the shortlog" * tag 'usb-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (352 commits) usbcore: fix incorrect type in assignment in descriptors_changed() usbcore: compare and release one bos descriptor in usb_reset_and_verify_device() ehci: remove debugging statement with ehci statistics in ehci_stop() ehci: remove duplicate debug_async_open() prototype in ehci-dbg.c ehci: enable debugging code when CONFIG_DYNAMIC_DEBUG is set ehci: remove ehci_vdbg() verbose debugging statements Documentation sysfs-bus-usb: Document which files are used by libusb Documentation sysfs-bus-usb: Document the speed file used by libusb Documentation sysfs-bus-usb: Move files with known users to stable USB: fix build error when CONFIG_PM_SLEEP isn't enabled usb: r8a66597-hcd: use platform_{get,set}_drvdata() usb: phy-tegra-usb: use platform_{get,set}_drvdata() usb: acm gadget: Null termintate strings table dma: cppi41: off by one in desc_to_chan() xhci: Fix warning introduced by disabling runtime PM. dev-core: fix build break when DEBUG is enabled USB: OHCI: Allow runtime PM without system sleep usb: ohci-at91: remove unnecessary dev_set_drvdata() usb: renesas_usbhs: use platform_{get,set}_drvdata() usb: fotg210-udc: use platform_{get,set}_drvdata() ...
2013-09-03NTB: Correct debugfs to work with more than 1 NTB DeviceJon Mason
Debugfs was setup in NTB to only have a single debugfs directory. This resulted in the leaking of debugfs directories and files when multiple NTB devices were present, due to each device stomping on the variables containing the previous device's values (thus preventing them from being freed on cleanup). Correct this by creating a secondary directory of the PCI BDF for each device present, and nesting the previously existing information in those directories. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NTB: Correct USD/DSD IdentificationJon Mason
Due to ambiguous documentation, the USD/DSD identification is backward when compared to the setting in BIOS. Correct the bits to match the BIOS setting. Signed-off-by: Jon Mason <jon.mason@intel.com>