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2017-02-10PCI/ASPM: Add L1 substate capability structure register definitionsRajat Jain
Add L1 substate capability structure register definitions for use in subsequent patches. See the PCIe r3.1 spec, sec 7.33. [bhelgaas: add PCIe spec reference] Signed-off-by: Rajat Jain <rajatja@google.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) If the timing is wrong we can indefinitely stop generating new ipv6 temporary addresses, from Marcus Huewe. 2) Don't double free per-cpu stats in ipv6 SIT tunnel driver, from Cong Wang. 3) Put protections in place so that AF_PACKET is not able to submit packets which don't even have a link level header to drivers. From Willem de Bruijn. 4) Fix memory leaks in ipv4 and ipv6 multicast code, from Hangbin Liu. 5) Don't use udp_ioctl() in l2tp code, UDP version expects a UDP socket and that doesn't go over very well when it is passed an L2TP one. Fix from Eric Dumazet. 6) Don't crash on NULL pointer in phy_attach_direct(), from Florian Fainelli. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: l2tp: do not use udp_ioctl() xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend() NET: mkiss: Fix panic net: hns: Fix the device being used for dma mapping during TX net: phy: Initialize mdio clock at probe function igmp, mld: Fix memory leak in igmpv3/mld_del_delrec() xen-netfront: Improve error handling during initialization sierra_net: Skip validating irrelevant fields for IDLE LSIs sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications kcm: fix 0-length case for kcm_sendmsg() xen-netfront: Rework the fix for Rx stall during OOM and network stress net: phy: Fix PHY module checks and NULL deref in phy_attach_direct() net: thunderx: Fix PHY autoneg for SGMII QLM mode net: dsa: Do not destroy invalid network devices ping: fix a null pointer dereference packet: round up linear to header len net: introduce device min_header_len sit: fix a double free on error path lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled ipv6: addrconf: fix generation of new temporary addresses
2017-02-10Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Third round of -rc fixes for 4.10 kernel: - two security related issues in the rxe driver - one compile issue in the RDMA uapi header" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: RDMA: Don't reference kernel private header from UAPI header IB/rxe: Fix mem_check_range integer overflow IB/rxe: Fix resid update
2017-02-10bitfield.h: add FIELD_FIT() helperJakub Kicinski
Add a helper for checking at runtime that a value will fit inside a specified field/mask. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10PCI/DPC: Wait for Root Port busy to clearKeith Busch
Per PCIe r3.1, sec 6.2.10 and sec 7.13.4, on Root Ports that support "RP Extensions for DPC", When the DPC Trigger Status bit is Set and the DPC RP Busy bit is Set, software must leave the Root Port in DPC until the DPC RP Busy bit reads 0b. Wait up to 1 second for the Root Port to become non-busy. [bhelgaas: changelog, spec references] Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-10PCI/MSI: Remove pci_msi_domain_{alloc,free}_irqs()Christoph Hellwig
Just call the msi_* version directly instead of having trivial wrappers for one or two callsites. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10PCI/MSI: Remove unused pci_msi_create_default_irq_domain()Christoph Hellwig
pci_msi_create_default_irq_domain() is never called in the whole tree, so remove it as well as all the supporting code for a default PCI MSI domain. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10devlink: fix the name of eswitch commandsJiri Pirko
The eswitch_[gs]et command is supposed to be similar to port_[gs]et command - for multiple eswitch attributes. However, when it was introduced by 08f4b5918b2d ("net/devlink: Add E-Switch mode control") it was wrongly named with the word "mode" in it. So fix this now, make the oririnal enum value existing but obsolete. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10Merge tag 'mac80211-next-for-davem-2017-02-09' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== Some more updates: * use shash in mac80211 crypto code where applicable * some documentation fixes * pass RSSI levels up in change notifications * remove unused rfkill-regulator * various other cleanups ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10net: dsa: remove unnecessary phy*.h includesRussell King
Including phy.h and phy_fixed.h into net/dsa.h causes phy*.h to be an unnecessary dependency for quite a large amount of the kernel. There's very little which actually requires definitions from phy.h in net/dsa.h - the include itself only wants the declaration of a couple of structures and IFNAMSIZ. Add linux/if.h for IFNAMSIZ, declarations for the structures, phy.h to mv88e6xxx.h as it needs it for phy_interface_t, and remove both phy.h and phy_fixed.h from net/dsa.h. This patch reduces from around 800 files rebuilt to around 40 - even with ccache, the time difference is noticable. Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10net/act_pedit: Introduce 'add' operationAmir Vadai
This command could be useful to inc/dec fields. For example, to forward any TCP packet and decrease its TTL: $ tc filter add dev enp0s9 protocol ip parent ffff: \ flower ip_proto tcp \ action pedit munge ip ttl add 0xff pipe \ action mirred egress redirect dev veth0 In the example above, adding 0xff to this u8 field is actually decreasing it by one, since the operation is masked. Signed-off-by: Amir Vadai <amir@vadai.me> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10net/act_pedit: Support using offset relative to the conventional network headersAmir Vadai
Extend pedit to enable the user setting offset relative to network headers. This change would enable to work with more complex header schemes (vs the simple IPv4 case) where setting a fixed offset relative to the network header is not enough. After this patch, the action has information about the exact header type and field inside this header. This information could be used later on for hardware offloading of pedit. Backward compatibility was being kept: 1. Old kernel <-> new userspace 2. New kernel <-> old userspace 3. add rule using new userspace <-> dump using old userspace 4. add rule using old userspace <-> dump using new userspace When using the extended api, new netlink attributes are being used. This way, operation will fail in (1) and (3) - and no malformed rule be added or dumped. Of course, new user space that doesn't need the new functionality can use the old netlink attributes and operation will succeed. Since action can support both api's, (2) should work, and it is easy to write the new user space to have (4) work. The action is having a strict check that only header types and commands it can handle are accepted. This way future additions will be much easier. Usage example: $ tc filter add dev enp0s9 protocol ip parent ffff: \ flower \ ip_proto tcp \ dst_port 80 \ action pedit munge tcp dport set 8080 pipe \ action mirred egress redirect dev veth0 Will forward tcp port whose original dest port is 80, while modifying the destination port to 8080. Signed-off-by: Amir Vadai <amir@vadai.me> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10net/skbuff: Introduce skb_mac_offset()Amir Vadai
Introduce skb_mac_offset() that could be used to get mac header offset. Signed-off-by: Amir Vadai <amir@vadai.me> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10mtd: name the mtd device with an optional label propertyCédric Le Goater
This can be used to easily identify a specific chip on a system with multiple chips. Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-10Merge tag 'spi-nor/for-4.11-v2' of git://github.com/spi-nor/linuxBrian Norris
From Cyrille: """ This pull request contains the following notable changes: - add support to the 4-byte address instruction set. - add support to new memory parts. - add support to S3AN memories. - add support to the Intel SPI controller. - add support to the Aspeed AST2400 and AST2550 controllers. - fix max SPI transfer and message sizes in m25p80_read(). - fix the Candence QSPI driver. - fix the Freescale QSPI driver. """
2017-02-10switchdev: bridge: Offload mc router portsNogah Frankel
Offload the mc router ports list, whenever it is being changed. It is done because in some cases mc packets needs to be flooded to all the ports in this list. Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10switchdev: bridge: Offload multicast disabledNogah Frankel
Offload multicast disabled flag, for more accurate mc flood behavior: When it is on, the mdb should be ignored. When it is off, unregistered mc packets should be flooded to mc router ports. Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_apiJiri Pirko
Creation is done in this file, move destruction to be at the same place. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10sched: rename tcf_destroy to tcf_destroy_protoJiri Pirko
This function destroys TC filter protocol, not TC filter. So name it accordingly. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10afs: Move UUID struct to linux/uuid.hDavid Howells
Move the afs_uuid struct to linux/uuid.h, rename it to uuid_v1 and change the u16/u32 fields to __be16/__be32 instead so that the structure can be cast to a 16-octet network-order buffer. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de
2017-02-10ipv4: fib: Add events for FIB replace and appendIdo Schimmel
The FIB notification chain currently uses the NLM_F_{REPLACE,APPEND} flags to signal routes being replaced or appended. Instead of using netlink flags for in-kernel notifications we can simply introduce two new events in the FIB notification chain. This has the added advantage of making the API cleaner, thereby making it clear that these events should be supported by listeners of the notification chain. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10blk-mq: pass bio to blk_mq_sched_get_rq_privPaolo Valente
bio is used in bfq-mq's get_rq_priv, to get the request group. We could pass directly the group here, but I thought that passing the bio was more general, giving the possibility to get other pieces of information if needed. Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-10kernfs: handle null pointers while printing node name and pathKonstantin Khlebnikov
Null kernfs nodes could be found at cgroups during construction. It seems safer to handle these null pointers right in kernfs in the same way as printf prints "(null)" for null pointer string. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10binder: Add support for file-descriptor arraysMartijn Coenen
This patch introduces a new binder_fd_array object, that allows us to support one or more file descriptors embedded in a buffer that is scatter-gathered. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10binder: Add support for scatter-gatherMartijn Coenen
Previously all data passed over binder needed to be serialized, with the exception of Binder objects and file descriptors. This patchs adds support for scatter-gathering raw memory buffers into a binder transaction, avoiding the need to first serialize them into a Parcel. To remain backwards compatibile with existing binder clients, it introduces two new command ioctls for this purpose - BC_TRANSACTION_SG and BC_REPLY_SG. These commands may only be used with the new binder_transaction_data_sg structure, which adds a field for the total size of the buffers we are scatter-gathering. Because memory buffers may contain pointers to other buffers, we allow callers to specify a parent buffer and an offset into it, to indicate this is a location pointing to the buffer that we are fixing up. The kernel will then take care of fixing up the pointer to that buffer as well. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> [jstultz: Fold in small fix from Amit Pundir <amit.pundir@linaro.org>] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10binder: Split flat_binder_objectMartijn Coenen
flat_binder_object is used for both handling binder objects and file descriptors, even though the two are mostly independent. Since we'll have more fixup objects in binder in the future, instead of extending flat_binder_object again, split out file descriptors to their own object while retaining backwards compatibility to existing user-space clients. All binder objects just share a header. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Martijn Coenen <maco@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10vmbus: remove unused kickq argument to sendpacketStephen Hemminger
Since sendpacket no longer uses kickq argument remove it. Remove it no longer used xmit_more in sendpacket in netvsc as well. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10vmbus: remove no longer used signal_policyStephen Hemminger
The explicit signal policy is no longer used. A different mechanism will be added later when xmit_more is supported. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10fpga: Add scatterlist based programmingJason Gunthorpe
Requiring contiguous kernel memory is not a good idea, this is a limited resource and allocation can fail under normal work loads. This introduces a .write_sg op that supporting drivers can provide to DMA directly from dis-contiguous memory and a new entry point fpga_mgr_buf_load_sg that users can call to directly provide page lists. The full matrix of compatibility is provided, either the linear or sg interface can be used by the user with a driver supporting either interface. A notable change for drivers is that the .write op can now be called multiple times. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Acked-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10drivers/fsi: add driver to device matchesJeremy Kerr
Driver bind to devices based on the engine types & (optional) versions. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Chris Bostic <cbostic@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10drivers/fsi: Add device & driver definitionsJeremy Kerr
Add structs for fsi devices & drivers, and struct device conversion functions. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Chris Bostic <cbostic@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10drivers/fsi: Add empty fsi bus definitionsJeremy Kerr
This change adds the initial (empty) fsi bus definition, and introduces drivers/fsi/. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Chris Bostic <cbostic@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10serial: exar: Move register defines from uapi header to consumer siteJan Kiszka
None of these registers is relevant for the userspace API. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10Merge branches 'iommu/fixes', 'arm/exynos', 'arm/renesas', 'arm/smmu', ↵Joerg Roedel
'arm/mediatek', 'arm/core', 'x86/vt-d' and 'core' into next
2017-02-10serial: exar: Fix feature control register constantsJan Kiszka
According to the XR17V352 manual, bit 4 is IrDA control and bit 5 for 485. Fortunately, no driver used them so far. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10iommu: Remove iommu_register_instance interfaceJoerg Roedel
And also move its remaining functionality to iommu_device_register() and 'struct iommu_device'. Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10irqdesc: Add a resource managed version of irq_alloc_descs()Bartosz Golaszewski
Add a devres flavor of __devm_irq_alloc_descs() and corresponding helper macros. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Link: http://lkml.kernel.org/r/1486729403-21132-1-git-send-email-bgolaszewski@baylibre.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10Merge tag 'ib-mfd-mtd-v4.11' of ↵Cyrille Pitchen
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd From Lee Jones: """ Immutable branch between MFD and MTD due for the v4.11 merge window """
2017-02-10mtd: spi-nor: rename SPINOR_OP_* macros of the 4-byte address op codesCyrille Pitchen
This patch renames the SPINOR_OP_* macros of the 4-byte address instruction set so the new names all share a common pattern: the 4-byte address name is built from the 3-byte address name appending the "_4B" suffix. The patch also introduces new op codes to support other SPI protocols such as SPI 1-4-4 and SPI 1-2-2. This is a transitional patch and will help a later patch of spi-nor.c to automate the translation from the 3-byte address op codes into their 4-byte address version. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Marek Vasut <marek.vasut@gmail.com>
2017-02-10mtd: spi-nor: Add support for S3AN spi-nor devicesRicardo Ribalda
Xilinx Spartan-3AN FPGAs contain an In-System Flash where they keep their configuration data and (optionally) some user data. The protocol of this flash follows most of the spi-nor standard. With the following differences: - Page size might not be a power of two. - The address calculation (default addressing mode). - The spi nor commands used. Protocol is described on Xilinx User Guide UG333 Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Marek Vasut <marek.vasut@gmail.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
2017-02-10iommu: Add iommu_device_set_fwnode() interfaceJoerg Roedel
Allow to store a fwnode in 'struct iommu_device'; Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Make iommu_device_link/unlink take a struct iommu_deviceJoerg Roedel
This makes the interface more consistent with iommu_device_sysfs_add/remove. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Add sysfs bindings for struct iommu_deviceJoerg Roedel
There is currently support for iommu sysfs bindings, but those need to be implemented in the IOMMU drivers. Add a more generic version of this by adding a struct device to struct iommu_device and use that for the sysfs bindings. Also convert the AMD and Intel IOMMU driver to make use of it. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Introduce new 'struct iommu_device'Joerg Roedel
This struct represents one hardware iommu in the iommu core code. For now it only has the iommu-ops associated with it, but that will be extended soon. The register/unregister interface is also added, as well as making use of it in the Intel and AMD IOMMU drivers. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Rename iommu_get_instance()Joerg Roedel
Rename the function to iommu_ops_from_fwnode(), because that is what the function actually does. The new name is much more descriptive about what the function does. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10time: Remove CONFIG_TIMER_STATSKees Cook
Currently CONFIG_TIMER_STATS exposes process information across namespaces: kernel/time/timer_list.c print_timer(): SEQ_printf(m, ", %s/%d", tmp, timer->start_pid); /proc/timer_list: #11: <0000000000000000>, hrtimer_wakeup, S:01, do_nanosleep, cron/2570 Given that the tracer can give the same information, this patch entirely removes CONFIG_TIMER_STATS. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: John Stultz <john.stultz@linaro.org> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: linux-doc@vger.kernel.org Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Xing Gao <xgao01@email.wm.edu> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Jessica Frazelle <me@jessfraz.com> Cc: kernel-hardening@lists.openwall.com Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Michal Marek <mmarek@suse.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Olof Johansson <olof@lixom.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-api@vger.kernel.org Cc: Arjan van de Ven <arjan@linux.intel.com> Link: http://lkml.kernel.org/r/20170208192659.GA32582@beast Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10perf/core: Allow kernel filters on CPU eventsAlexander Shishkin
While supporting file-based address filters for CPU events requires some extra context switch handling, kernel address filters are easy, since the kernel mapping is preserved across address spaces. It is also useful as it permits tracing scheduling paths of the kernel. This patch allows setting up kernel filters for CPU events. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Will Deacon <will.deacon@arm.com> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20170126094057.13805-4-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-10kref: Implement 'struct kref' using refcount_tPeter Zijlstra
Use the refcount_t 'atomic' type to implement 'struct kref', this makes kref more robust by bringing saturation semantics. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-10refcount_t: Introduce a special purpose refcount typePeter Zijlstra
Provide refcount_t, an atomic_t like primitive built just for refcounting. It provides saturation semantics such that overflow becomes impossible and thereby 'spurious' use-after-free is avoided. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-09openvswitch: Add force commit.Jarno Rajahalme
Stateful network admission policy may allow connections to one direction and reject connections initiated in the other direction. After policy change it is possible that for a new connection an overlapping conntrack entry already exists, where the original direction of the existing connection is opposed to the new connection's initial packet. Most importantly, conntrack state relating to the current packet gets the "reply" designation based on whether the original direction tuple or the reply direction tuple matched. If this "directionality" is wrong w.r.t. to the stateful network admission policy it may happen that packets in neither direction are correctly admitted. This patch adds a new "force commit" option to the OVS conntrack action that checks the original direction of an existing conntrack entry. If that direction is opposed to the current packet, the existing conntrack entry is deleted and a new one is subsequently created in the correct direction. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Acked-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Joe Stringer <joe@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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