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2014-09-10Documentation: filter: Add MIPS to architectures with BPF JITMarkos Chandras1-3/+3
MIPS supports BPF JIT since v3.16-rc1 Cc: Randy Dunlap <rdunlap@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10mlx4: Fix wrong endianess access with QP context flagsOr Gerlitz1-1/+1
We wrongly tested QP context bits without BE conversion as was spotted by sparse... drivers/infiniband/hw/mlx4/qp.c:1685:38: sparse: restricted __be32 degrades to integer Fix that! Fixes: d2fce8a ('mlx4: Set user-space raw Ethernet QPs to properly handle VXLAN traffic') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10Merge branch 'mlx4'David S. Miller6-15/+71
Or Gerlitz says: ==================== mlx4 SRIOV fixes This series contains few SRIOV related fixes from Matan, please apply to net. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10net/mlx4: Set vlan stripping policy by the right commandMatan Barak5-7/+38
Changing the vlan stripping policy of the QP isn't supported by older firmware versions for the INIT2RTR command. Nevertheless, we've used it. Fix that by doing this policy change using INIT2RTR only if the firmware supports it, otherwise, we call UPDATE_QP command to do the task. Fixes: 7677fc9 ('net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10net/mlx4: Avoid dealing with MAC index in UPDATE_QP wrapper if not neededMatan Barak1-7/+11
The current wrapper implementation of the UPDATE_QP command tries to get the MAC index, even if MAC wasn't set by the VF. Fix it up to only handle the MAC field if it's valid. Fixes: ce8d9e0 ('net/mlx4_core: Add UPDATE_QP SRIOV wrapper support') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10net/mlx4: Use the correct VSD mask in UPDATE_QPMatan Barak1-1/+1
When doing VGT->VST->VGT state changes, we used an incorrect mask for the vlan-stripping-disable (VSD) flag, hence the vlan related policy for user-space Raw Ethernet QPs open by VFs wasn't really applied. Fix that, by using the correct mask. Fixes: f0f829b ('net/mlx4_core: Add immediate activate for VGT->VST->VGT') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10net/mlx4: Correctly configure single ported VFs from the hostMatan Barak1-0/+21
Single port VFs are seen PCI wise on both ports of the PF (we don't have single port PFs with ConnectX). With this in mind, it's possible for virtualization tools to try and configure a single ported VF through the "wrong" PF port. To handle that, we use the PF driver mapping of single port VFs to NIC ports and adjust the port value before calling into the low level code that does the actual VF configuration Fixes: 449fc48 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10drivers: net: cpsw: dual_emac: fix reducing of rx descriptor during ifdownMugunthan V N1-0/+23
In Dual EMAC, when both interface are up and while doing ifdown with heavy traffic then skbs already processed by DMA from that slave emac has to be requeued as still the other interface is up and running. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-09RxRPC: Fix missing __user annotationDavid Howells1-1/+1
Fix a missing __user annotation in a cast of a user space pointer (found by checker). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-09net:bonding: Add missing space in bonding driver parameter descriptionMasanari Iida1-1/+1
This patch adds missing space between "interface" and "by" in bonding module parameter description. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-09net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr ↵Ani Sinha1-0/+3
struct from userland. Linux manpage for recvmsg and sendmsg calls does not explicitly mention setting msg_namelen to 0 when msg_name passed set as NULL. When developers don't set msg_namelen member in msghdr, it might contain garbage value which will fail the validation check and sendmsg and recvmsg calls from kernel will return EINVAL. This will break old binaries and any code for which there is no access to source code. To fix this, we set msg_namelen to 0 when msg_name is passed as NULL from userland. Signed-off-by: Ani Sinha <ani@arista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08Merge branch 'oom_fixes'David S. Miller2-26/+38
Florian Fainelli says: ==================== net: systemport and bcmgenet OOM fixes These two patches fix similar Out of Memory code paths in the SYSTEMPORT and GENET drivers. Under high memory pressure, we could produce an OOPS by passing a NULL pointer to dma_unmap_single(). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08net: bcmgenet: check harder for out of memory conditionsFlorian Fainelli1-14/+19
There is a potential case where we might be failing to refill a control block, leaving it with both a NULL skb pointer *and* a NULL dma_unmap_addr. The way we process incoming packets, by first calling dma_unmap_single(), and then only checking for a potential NULL skb can lead to situations where do pass a NULL dma_unmap_addr() to dma_unmap_single(), resulting in an oops. Fix this my moving the NULL skb check earlier, since no backing skb also means no corresponding DMA mapping for this packet. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08net: systemport: check harder for out of memory conditionsFlorian Fainelli1-12/+19
There is a potential case where we might be failing to refill a control block, leaving it with both a NULL skb pointer *and* a NULL dma_unmap_addr. The way we process incoming packets, by first calling dma_unmap_single(), and then only checking for a potential NULL skb can lead to situations where do pass a NULL dma_unmap_addr() to dma_unmap_single(), resulting in an oops. Fix this my moving the NULL skb check earlier, since no backing skb also means no corresponding DMA mapping for this packet. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08net/mlx4_en: do not ignore autoneg in mlx4_en_set_pauseparam()Ivan Vecera1-0/+3
The driver does not support pause autonegotiation so it should return -EINVAL when the function is called with non-zero autoneg. Cc: Amir Vadai <amirv@mellanox.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08drivers: net: ethernet: octeon_mgmt: fix a compiler warningAaro Koskinen1-1/+3
Fix the following compiler warning: drivers/net/ethernet/octeon/octeon_mgmt.c: In function 'octeon_mgmt_clean_tx_buffers': drivers/net/ethernet/octeon/octeon_mgmt.c:295:4: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] u64 ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port)); ^ Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08net: fix skb_page_frag_refill() kerneldocEric Dumazet1-1/+1
In commit d9b2938aabf7 ("net: attempt a single high order allocation) I forgot to update kerneldoc, as @prio parameter was renamed to @gfp Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08sunvnet - add missing rmb() for sunvnet driverDavid L Stevens1-2/+5
The sunvnet driver does not have an rmb() in the ring consumer corresponding to the wmb() in the producer. According to Documentation/memory-barriers.txt: "When dealing with CPU-CPU interactions, certain types of memory barrier should always be paired. A lack of appropriate pairing is almost certainly an error." In cases where an rmb() is not a no-op and a consumer is removing data from the ring while a producer is adding new entries, a load reorder would allow CPU1 CPU2 ---- ---- LOAD desc.size [e.g] STORE desc.size <wmb> set desc.hdr.state = VIO_DESC_READY LOAD desc.hdr.state [because VIO_DESC_READY, use old desc.size, already loaded out of order] [CPU2 has reordered apparently unrelated LOADs] To ensure other desc fields are not loaded before checking VIO_DESC_READY, we need an rmb() between the check and desc data accesses. I've also moved the viodbg() call to after the rmb() so that it, too, has current descriptor data even with reordering, which has the side effect that it won't print anything for descriptors that are not VIO_DESC_READY as before. That's a) probably a good thing, since the fields are not necessarily set and, b) better than adding another rmb() just for viodbg(). This would not be possible if strict-ordering is enforced, but then the memory barriers should be no-ops in that case. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-08Merge branch 'for-linus' of ↵Linus Torvalds5-62/+96
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "A bug fix for the vdso code, the loadparm for booting from SCSI is added and the access permissions for the dasd module parameters are corrected" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/vdso: remove NULL pointer check from clock_gettime s390/ipl: Add missing SCSI loadparm attributes to /sys/firmware s390/dasd: Make module parameter visible in sysfs
2014-09-07Merge branch 'for-3.17-fixes' of ↵Linus Torvalds1-14/+33
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: "This pull request includes Alban's patch to disallow '\n' in cgroup names. Two other patches from Li to fix a possible oops when cgroup destruction races against other file operations and one from Vivek to fix a unified hierarchy devel behavior" * 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: check cgroup liveliness before unbreaking kernfs cgroup: delay the clearing of cgrp->kn->priv cgroup: Display legacy cgroup files on default hierarchy cgroup: reject cgroup names with '\n'
2014-09-07Merge branch 'for-3.17-fixes' of ↵Linus Torvalds2-6/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu fixes from Tejun Heo: "One patch to fix a failure path in the alloc path. The bug is dangerous but probably not too likely to actually trigger in the wild given that there hasn't been any report yet. The other two are low impact fixes" * 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: free percpu allocation info for uniprocessor system percpu: perform tlb flush after pcpu_map_pages() failure percpu: fix pcpu_alloc_pages() failure path
2014-09-07Merge branch 'for-3.17-fixes' of ↵Linus Torvalds5-18/+99
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Two patches are to add PCI IDs for ICH9 and all others are device specific fixes. Nothing too interesting" * 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci_xgene: Fix the link down in first attempt for the APM X-Gene SoC AHCI SATA host controller driver. ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware. ahci: add pcid for Marvel 0x9182 controller ata: Disabling the async PM for JMicron chip 363/361 ata_piix: Add Device IDs for Intel 9 Series PCH ahci: Add Device IDs for Intel 9 Series PCH ata: ahci_tegra: Read calibration fuse
2014-09-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds116-555/+1082
Pull networking fixes from David Miller: 1) Fix skb leak in mac802154, from Martin Townsend 2) Use select not depends on NF_NAT for NFT_NAT, from Pablo Neira Ayuso 3) Fix union initializer bogosity in vxlan, from Gerhard Stenzel 4) Fix RX checksum configuration in stmmac driver, from Giuseppe CAVALLARO 5) Fix TSO with non-accelerated VLANs in e1000, e1000e, bna, ehea, i40e, i40evf, mvneta, and qlge, from Vlad Yasevich 6) Fix capability checks in phy_init_eee(), from Giuseppe CAVALLARO 7) Try high order allocations more sanely for SKBs, specifically if a high order allocation fails, fall back directly to zero order pages rather than iterating down one order at a time. From Eric Dumazet 8) Fix a memory leak in openvswitch, from Li RongQing 9) amd-xgbe initializes wrong spinlock, from Thomas Lendacky 10) RTNL locking was busted in setsockopt for anycast and multicast, fix from Sabrina Dubroca 11) Fix peer address refcount leak in ipv6, from Nicolas Dichtel 12) DocBook typo fixes, from Masanari Iida * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (101 commits) ipv6: restore the behavior of ipv6_sock_ac_drop() amd-xgbe: Enable interrupts for all management counters amd-xgbe: Treat certain counter registers as 64 bit greth: moved TX ring cleaning to NAPI rx poll func cnic : Cleanup CONFIG_IPV6 & VLAN check net: treewide: Fix typo found in DocBook/networking.xml bnx2x: Fix link problems for 1G SFP RJ45 module 3c59x: avoid panic in boomerang_start_xmit when finding page address: netfilter: add explicit Kconfig for NETFILTER_XT_NAT ipv6: use addrconf_get_prefix_route() to remove peer addr ipv6: fix a refcnt leak with peer addr net-timestamp: only report sw timestamp if reporting bit is set drivers/net/fddi/skfp/h/skfbi.h: Remove useless PCI_BASE_2ND macros l2tp: fix race while getting PMTU on PPP pseudo-wire ipv6: fix rtnl locking in setsockopt for anycast and multicast VMXNET3: Check for map error in vmxnet3_set_mc openvswitch: distinguish between the dropped and consumed skb amd-xgbe: Fix initialization of the wrong spin lock openvswitch: fix a memory leak netfilter: fix missing dependencies in NETFILTER_XT_TARGET_LOG ...
2014-09-07Merge tag 'master-2014-09-04' of ↵David S. Miller11-14/+33
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== pull request: wireless 2014-09-05 Please pull this batch of fixes intended for the 3.17 stream... For the mac80211 bits, Johannes says: "Here are a few fixes for mac80211. One has been discussed for a while and adds a terminating NUL-byte to the alpha2 sent to userspace, which shouldn't be necessary but since many places treat it as a string we couldn't move to just sending two bytes. In addition to that, we have two VLAN fixes from Felix, a mesh fix, a fix for the recently introduced RX aggregation offload, a revert for a broken patch (that luckily didn't really cause any harm) and a small fix for alignment in debugfs." For the iwlwifi bits, Emmanuel says: "I revert a patch that disabled CTS to self in dvm because users reported issues. The revert is CCed to stable since the offending patch was sent to stable too. I also bump the firmware API versions since a new firmware is coming up. On top of that, Marcel fixes a bug I introduced while fixing a bug in our Kconfig file." Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-07ipv6: restore the behavior of ipv6_sock_ac_drop()WANG Cong1-2/+0
It is possible that the interface is already gone after joining the list of anycast on this interface as we don't hold a refcount for the device, in this case we are safe to ignore the error. What's more important, for API compatibility we should not change this behavior for applications even if it were correct. Fixes: commit a9ed4a2986e13011 ("ipv6: fix rtnl locking in setsockopt for anycast and multicast") Cc: Sabrina Dubroca <sd@queasysnail.net> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-07Linux 3.17-rc4v3.17-rc4Linus Torvalds1-1/+1
2014-09-07Documentation: new page link in SubmittingPatchesSudip Mukherjee1-0/+1
new link for - How to piss off a Linux kernel subsystem maintainer Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-07Documentation: NFS/RDMA: Document separate Kconfig symbolsPaul Bolle1-7/+9
The NFS/RDMA Kconfig symbol was split into separate options for client and server in commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig options for NFSoRDMA client and server support"). Update the documentation to reflect this split. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: "J. Bruce Fields" <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-07Documentation: misc-devices: Rename freefall.c from hpfall.c in lis2lv02dMasanari Iida1-1/+1
hpfall.c was renamed to freefall.c in 3.16, but this file still refer to hpfall.c instead of freefall.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-07Documentation: i2c: rename variable "register" to "reg"Jose Manuel Alarcon Roldan1-5/+5
The example code provided with the i2c device interface documentation won't compile since it uses the reserved word "register" to name a variable. The compiler fails with this error message: error: expected identifier or '(' before '=' token __u8 register = 0x20; /* Device register to access */ ^ Rename the variable "register" to simply "reg" in the example code. Another couple of typos has been fixed as well. [Change "! =" to "!=".] Signed-off-by: Jose Alarcon Roldan <jose.alarcon.roldan@gmail.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-07Documentation: seq_file: Document seq_open_private(), seq_release_private()Rob Jones1-0/+33
Despite the fact that these functions have been around for years, they are little used (only 15 uses in 13 files at the preseht time) even though many other files use work-arounds to achieve the same result. By documenting them, hopefully they will become more widely used. Signed-off-by: Rob Jones <rob.jones@codethink.co.uk> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-07Merge tag 'pm+acpi-3.17-rc4' of ↵Linus Torvalds12-34/+122
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "These are regression fixes (ACPI sysfs, ACPI video, suspend test), ACPI cpuidle deadlock fix, missing runtime validation of ACPI _DSD output, a fix and a new CPU ID for the RAPL driver, new blacklist entry for the ACPI EC driver and a couple of trivial cleanups (intel_pstate and generic PM domains). Specifics: - Fix for recently broken test_suspend= command line argument (Rafael Wysocki). - Fixes for regressions related to the ACPI video driver caused by switching the default to native backlight handling in 3.16 from Hans de Goede. - Fix for a sysfs attribute of ACPI device objects that returns stale values sometimes due to the fact that they are cached instead of executing the appropriate method (_SUN) every time (broken in 3.14). From Yasuaki Ishimatsu. - Fix for a deadlock between cpuidle_lock and cpu_hotplug.lock in the ACPI processor driver from Jiri Kosina. - Runtime output validation for the ACPI _DSD device configuration object missing from the support for it that has been introduced recently. From Mika Westerberg. - Fix for an unuseful and misleading RAPL (Running Average Power Limit) domain detection message in the RAPL driver from Jacob Pan. - New Intel Haswell CPU ID for the RAPL driver from Jason Baron. - New Clevo W350etq blacklist entry for the ACPI EC driver from Lan Tianyu. - Cleanup for the intel_pstate driver and the core generic PM domains code from Gabriele Mazzotta and Geert Uytterhoeven" * tag 'pm+acpi-3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock ACPI / scan: not cache _SUN value in struct acpi_device_pnp cpufreq: intel_pstate: Remove unneeded variable powercap / RAPL: change domain detection message powercap / RAPL: add support for CPU model 0x3f PM / domains: Make generic_pm_domain.name const PM / sleep: Fix test_suspend= command line option ACPI / EC: Add msi quirk for Clevo W350etq ACPI / video: Disable native_backlight on HP ENVY 15 Notebook PC ACPI / video: Add a disable_native_backlight quirk ACPI / video: Fix use_native_backlight selection logic ACPICA: ACPI 5.1: Add support for runtime validation of _DSD package.
2014-09-07Merge branch 'for-linus' of ↵Linus Torvalds4-14/+18
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull filesystem fixes from Al Viro: "Several bugfixes (all of them -stable fodder). Alexey's one deals with double mutex_lock() in UFS (apparently, nobody has tried to test "ufs: sb mutex merge + mutex_destroy" on something like file creation/removal on ufs). Mine deal with two kinds of umount bugs, in umount propagation and in handling of automounted submounts, both resulting in bogus transient EBUSY from umount" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ufs: fix deadlocks introduced by sb mutex merge fix EBUSY on umount() from MNT_SHRINKABLE get rid of propagate_umount() mistakenly treating slaves as busy.
2014-09-07Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds2-12/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU fix from Ingo Molnar: "A boot hang fix for the offloaded callback RCU model (RCU_NOCB_CPU=y && (TREE_CPU=y || TREE_PREEMPT_RC)) in certain bootup scenarios" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rcu: Make nocb leader kthreads process pending callbacks after spawning
2014-09-07Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds4-11/+39
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Three fixlets from the timer departement: - Update the timekeeper before updating vsyscall and pvclock. This fixes the kvm-clock regression reported by Chris and Paolo. - Use the proper irq work interface from NMI. This fixes the regression reported by Catalin and Dave. - Clarify the compat_nanosleep error handling mechanism to avoid future confusion" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Update timekeeper before updating vsyscall and pvclock compat: nanosleep: Clarify error handling nohz: Restore NMI safe local irq work for local nohz kick
2014-09-07ufs: fix deadlocks introduced by sb mutex mergeAlexey Khoroshilov2-13/+8
Commit 0244756edc4b ("ufs: sb mutex merge + mutex_destroy") introduces deadlocks in ufs_new_inode() and ufs_free_inode(). Most callers of that functions acqure the mutex by themselves and ufs_{new,free}_inode() do that via lock_ufs(), i.e we have an unavoidable double lock. The patch proposes to resolve the issue by making sure that ufs_{new,free}_inode() are not called with the mutex held. Found by Linux Driver Verification project (linuxtesting.org). Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-09-06Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds8-17/+28
Pull kvm fixes from Paolo Bonzini: "A smattering of bug fixes across most architectures" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: powerpc/kvm/cma: Fix panic introduces by signed shift operation KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags KVM: s390/mm: Fix storage key corruption during swapping arm/arm64: KVM: Complete WFI/WFE instructions ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU KVM: s390/mm: try a cow on read only pages for key ops KVM: s390: Fix user triggerable bug in dead code
2014-09-06Merge tag 'fixes-for-linus' of ↵Linus Torvalds12-59/+90
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Kevin Hilman: "Another round of fixes from arm-soc land, which are mostly DT fixes for: - OMAP: handful of DT fixes devices on newly supported hardware - davinci: fix 2nd EDMA channel - ux500: extend previous pinctrl fix to another board - at91: clock registration fixes, compatibility string precision And one more fix for event cleanup in drivers/bus/arm-ccn" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: bus: arm-ccn: Move event cleanup routine ARM: at91/dt: rm9200: fix usb clock definition ARM: at91: rm9200: fix clock registration ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver ARM: dts: dra7-evm: Add vtt regulator support ARM: dts: dra7-evm: Fix spi1 mux documentation ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am4372: fix USB regs size ARM: dts: am437x-gp: switch i2c0 to 100KHz ARM: dts: dra7-evm: Fix 8th NAND partition's name ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency ARM: ux500: disable msp2 node on Snowball ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC ARM: dts: set 'ti,set-rate-parent' for dpll4_m5x2 clock
2014-09-06Merge tag 'xfs-for-linus-3.17-rc3' of ↵Linus Torvalds4-12/+114
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs Pull xfs fixes from Dave Chinner: "The fixes all address recently discovered data corruption issues. The original Direct IO issue was discovered by Chris Mason @ Facebook on a production workload which mixed buffered reads with direct reads and writes IO to the same file. The fix for that exposed other issues with page invalidation (exposed by millions of fsx operations) failing due to dirty buffers beyond EOF. Finally, the collapse_range code could also cause problems due to racing writeback changing the extent map while it was being shifted around. The commits for that problem are simple mitigation fixes that prevent the problem from occuring. A more robust fix for 3.18 that addresses the underlying problem is currently being worked on by Brian. Summary of fixes: - a direct IO read/buffered read data corruption - the associated fallout from the DIO data corruption fix - collapse range bugs that are potential data corruption issues" * tag 'xfs-for-linus-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: xfs: trim eofblocks before collapse range xfs: xfs_file_collapse_range is delalloc challenged xfs: don't log inode unless extent shift makes extent modifications xfs: use ranged writeback and invalidation for direct IO xfs: don't zero partial page cache pages during O_DIRECT writes xfs: don't zero partial page cache pages during O_DIRECT writes xfs: don't dirty buffers beyond EOF
2014-09-06Merge tag 'for-linus-20140905' of git://git.infradead.org/linux-mtdLinus Torvalds2-1/+5
Pull mtd fixes from Brian Norris: "Two trivial MTD updates for 3.17-rc4: - a tiny comment tweak, to kill a bunch of DocBook warnings added during the merge window - a small fixup to the OTP routines' error handling" * tag 'for-linus-20140905' of git://git.infradead.org/linux-mtd: mtd: nand: fix DocBook warnings on nand_sdr_timings doc mtd: cfi_cmdset_0002: check return code for get_chip()
2014-09-06timekeeping: Update timekeeper before updating vsyscall and pvclockThomas Gleixner1-2/+3
The update_walltime() code works on the shadow timekeeper to make the seqcount protected region as short as possible. But that update to the shadow timekeeper does not update all timekeeper fields because it's sufficient to do that once before it becomes life. One of these fields is tkr.base_mono. That stays stale in the shadow timekeeper unless an operation happens which copies the real timekeeper to the shadow. The update function is called after the update calls to vsyscall and pvclock. While not correct, it did not cause any problems because none of the invoked update functions used base_mono. commit cbcf2dd3b3d4 (x86: kvm: Make kvm_get_time_and_clockread() nanoseconds based) changed that in the kvm pvclock update function, so the stale mono_base value got used and caused kvm-clock to malfunction. Put the update where it belongs and fix the issue. Reported-by: Chris J Arges <chris.j.arges@canonical.com> Reported-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1409050000570.3333@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-09-06compat: nanosleep: Clarify error handlingThomas Gleixner1-3/+21
The error handling in compat_sys_nanosleep() is correct, but completely non obvious. Document it and restrict it to the -ERESTART_RESTARTBLOCK return value for clarity. Reported-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-09-05Merge branch 'amd-xgbe-net'David S. Miller1-84/+110
Tom Lendacky says: ==================== amd-xgbe: AMD XGBE driver fixes 2014-09-05 The following series of patches includes fixes to the driver. - Proper access to 64 bit management counter registers - Enable all management counter registers to generate an interrupt when the counter threshold is reached This patch series is based on net. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05amd-xgbe: Enable interrupts for all management countersLendacky, Thomas1-2/+2
As the management counters reach a threshold they will generate an interrupt so the value can be saved and the counter reset. The current code does not enable this interrupt on all counters. This can result in inaccurate statistics. Update the code to enable all the counters to generate an interrupt when its threshold is exceeded. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05amd-xgbe: Treat certain counter registers as 64 bitLendacky, Thomas1-82/+108
Even if the management counters are configured to be 32 bit register values, the [rt]xoctetcount_gb and [rt]xoctetcount_g counters are always 64 bit counter registers. Since they are not being treated as 64 bit values, these statistics are being reported incorrectly (ifconfig, ethtool, etc.). Update the routines used to read the registers to access the "hi" register (an offset of 4 from the "lo" register) to create a 64 bit value for these 64 bit counters. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05greth: moved TX ring cleaning to NAPI rx poll funcDaniel Hellstrom2-39/+49
This patch does not affect the 10/100 GRETH MAC. Before all GBit GRETH TX descriptor ring cleaning was done in start_xmit(), when descriptor list became full it activated TX interrupt to start the NAPI rx poll function to do TX ring cleaning. With this patch the TX descriptor ring is always cleaned from the NAPI rx poll function, triggered via TX or RX interrupt. Otherwise we could end up in TX frames being sent but not reported to the stack being sent. On the 10/100 GRETH this is not an issue since the SKB is copied&aligned into private buffers so that the SKB can be freed directly on start_xmit() Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-05cnic : Cleanup CONFIG_IPV6 & VLAN checkAnish Bhatt2-3/+3
The cnic module needs to ensure that if ipv6 support is compiled as a module, then the cnic module cannot be compiled as built-in as it depends on ipv6. Made this check cleaner via Kconfig Use simpler IS_ENABLED for CONFIG_VLAN_8021Q check Signed-off-by: Anish Bhatt <anish@chelsio.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-06ahci_xgene: Fix the link down in first attempt for the APM X-Gene SoC AHCI ↵Suman Tripathi1-14/+34
SATA host controller driver. Due to HW errata the APM X-Gene AHCI SATA host controller reports link down even if the device presence is detected. This issue is due to speed negotiation failure. This patch implements the algorithm to retry the COMRESET if PxSTAT register reports device presence detected but PHY communication not established. The maximum retry attempts are 3. This patch also fixes the code to match the algorithm for the printing a warning message if the disparity error still exists after link up. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-09-06ahci_xgene: Skip the PHY and clock initialization if already configured by ↵Suman Tripathi1-1/+14
the firmware. This patch implements the feature to skip the PHY and clock initialization if it is already configured by the firmware. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-09-05net: treewide: Fix typo found in DocBook/networking.xmlMasanari Iida9-13/+13
This patch fix spelling typo found in DocBook/networking.xml. It is because the neworking.xml is generated from comments in the source, I have to fix typo in comments within the source. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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