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2017-06-01net/mlx5: Define interface bits for fencing UMR wqeMax Gurtovoy
HW can implement UMR wqe re-transmission in various ways. Thus, add HCA cap to distinguish the needed fence for UMR to make sure that the wqe wouldn't fail on mkey checks. Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Acked-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-27Merge tag 'tty-4.12-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger than normal, which is why I had them bake in linux-next for a few weeks and didn't send them to you for -rc2. They revert a few of the serdev patches from 4.12-rc1, and bring things back to how they were in 4.11, to try to make things a bit more stable there. Rob and Johan both agree that this is the way forward, so this isn't people squabbling over semantics. Other than that, just a few minor serial driver fixes that people have had problems with. All of these have been in linux-next for a few weeks with no reported issues" * tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: altera_uart: call iounmap() at driver remove serial: imx: ensure UCR3 and UFCR are setup correctly MAINTAINERS/serial: Change maintainer of jsm driver serial: enable serdev support tty/serdev: add serdev registration interface serdev: Restore serdev_device_write_buf for atomic context serial: core: fix crash in uart_suspend_port tty: fix port buffer locking tty: ehv_bytechan: clean up init error handling serial: ifx6x60: fix use-after-free on module unload serial: altera_jtaguart: adding iounmap() serial: exar: Fix stuck MSIs serial: efm32: Fix parity management in 'efm32_uart_console_get_options()' serdev: fix tty-port client deregistration Revert "tty_port: register tty ports with serdev bus" drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
2017-05-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix state pruning in bpf verifier wrt. alignment, from Daniel Borkmann. 2) Handle non-linear SKBs properly in SCTP ICMP parsing, from Davide Caratti. 3) Fix bit field definitions for rss_hash_type of descriptors in mlx5 driver, from Jesper Brouer. 4) Defer slave->link updates until bonding is ready to do a full commit to the new settings, from Nithin Sujir. 5) Properly reference count ipv4 FIB metrics to avoid use after free situations, from Eric Dumazet and several others including Cong Wang and Julian Anastasov. 6) Fix races in llc_ui_bind(), from Lin Zhang. 7) Fix regression of ESP UDP encapsulation for TCP packets, from Steffen Klassert. 8) Fix mdio-octeon driver Kconfig deps, from Randy Dunlap. 9) Fix regression in setting DSCP on ipv6/GRE encapsulation, from Peter Dawson. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits) ipv4: add reference counting to metrics net: ethernet: ax88796: don't call free_irq without request_irq first ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets sctp: fix ICMP processing if skb is non-linear net: llc: add lock_sock in llc_ui_bind to avoid a race condition bonding: Don't update slave->link until ready to commit test_bpf: Add a couple of tests for BPF_JSGE. bpf: add various verifier test cases bpf: fix wrong exposure of map_flags into fdinfo for lpm bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data bpf: properly reset caller saved regs after helper call and ld_abs/ind bpf: fix incorrect pruning decision when alignment must be tracked arp: fixed -Wuninitialized compiler warning tcp: avoid fastopen API to be used on AF_UNSPEC net: move somaxconn init from sysctl code net: fix potential null pointer dereference geneve: fix fill_info when using collect_metadata virtio-net: enable TSO/checksum offloads for Q-in-Q vlans be2net: Fix offload features for Q-in-Q packets vlan: Fix tcp checksum offloads in Q-in-Q vlans ...
2017-05-26Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A collection of fixes that should go into this series. This contains: - A set of NVMe fixes, pulled from Christoph. This includes a set of fixes for the fiber channel bits from James Smart, rdma queue depth fix from Marta, controller removal fixes from Ming, and some more APST quirk updates from Andy. - A blk-mq debugfs fix from Bart, fixing a problem with the untangling of the sysfs and debugfs blk-mq bits that was added in this series. - Error code fix in add_partition() from Dan. - A small series of fixes for the new blk-throttle code from Shaohua" * 'for-linus' of git://git.kernel.dk/linux-block: (21 commits) blk-mq: Only register debugfs attributes for blk-mq queues nvme: Quirk APST on Intel 600P/P3100 devices nvme: only setup block integrity if supported by the driver nvme: replace is_flags field in nvme_ctrl_ops with a flags field nvme-pci: consistencly use ctrl->device for logging partitions/msdos: FreeBSD UFS2 file systems are not recognized block: fix an error code in add_partition() blk-throttle: force user to configure all settings for io.low blk-throttle: respect 0 bps/iops settings for io.low blk-throttle: output some debug info in trace blk-throttle: add hierarchy support for latency target and idle time nvme_fc: remove extra controller reference taken on reconnect nvme_fc: correct nvme status set on abort nvme_fc: set logging level on resets/deletes nvme_fc: revise comment on teardown nvme_fc: Support ctrl_loss_tmo nvme_fc: get rid of local reconnect_delay blk-mq: remove blk_mq_abort_requeue_list() nvme: avoid to use blk_mq_abort_requeue_list() nvme: use blk_mq_start_hw_queues() in nvme_kill_queues() ...
2017-05-26Merge tag 'pci-v4.12-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - fix PCI_ENDPOINT build error (merged for v4.12) - fix Switchtec driver (merged for v4.12) - fix imx6 config read timeouts, fallout from changing to non-postable reads - add PM "needs_resume" flag for i915 suspend issue * tag 'pci-v4.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI/PM: Add needs_resume flag to avoid suspend complete optimization PCI: imx6: Fix config read timeout handling switchtec: Fix minor bug with partition ID register switchtec: Use new cdev_device_add() helper function PCI: endpoint: Make PCI_ENDPOINT depend on HAS_DMA
2017-05-26Merge tag 'ceph-for-4.12-rc3' of git://github.com/ceph/ceph-clientLinus Torvalds
Pul ceph fixes from Ilya Dryomov: "A bunch of make W=1 and static checker fixups, a RECONNECT_SEQ messenger patch from Zheng and Luis' fallocate fix" * tag 'ceph-for-4.12-rc3' of git://github.com/ceph/ceph-client: ceph: check that the new inode size is within limits in ceph_fallocate() libceph: cleanup old messages according to reconnect seq libceph: NULL deref on crush_decode() error path libceph: fix error handling in process_one_ticket() libceph: validate blob_struct_v in process_one_ticket() libceph: drop version variable from ceph_monmap_decode() libceph: make ceph_msg_data_advance() return void libceph: use kbasename() and kill ceph_file_part()
2017-05-26PCI/msi: fix the pci_alloc_irq_vectors_affinity stubChristoph Hellwig
We need to return an error for any call that asks for MSI / MSI-X vectors only, so that non-trivial fallback logic can work properly. Also valid dev->irq and use the "correct" errno value based on feedback from Linus. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Steven Rostedt <rostedt@goodmis.org> Fixes: aff17164 ("PCI: Provide sensible IRQ vector alloc/free routines") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-25bpf: add various verifier test casesDaniel Borkmann
This patch adds various verifier test cases: 1) A test case for the pruning issue when tracking alignment is used. 2) Various PTR_TO_MAP_VALUE_OR_NULL tests to make sure pointer arithmetic turns such register into UNKNOWN_VALUE type. 3) Test cases for the special treatment of LD_ABS/LD_IND to make sure verifier doesn't break calling convention here. Latter is needed, since f.e. arm64 JIT uses r1 - r5 for storing temporary data, so they really must be marked as NOT_INIT. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-24vlan: Fix tcp checksum offloads in Q-in-Q vlansVlad Yasevich
It appears that TCP checksum offloading has been broken for Q-in-Q vlans. The behavior was execerbated by the series commit afb0bc972b52 ("Merge branch 'stacked_vlan_tso'") that that enabled accleleration features on stacked vlans. However, event without that series, it is possible to trigger this issue. It just requires a lot more specialized configuration. The root cause is the interaction between how netdev_intersect_features() works, the features actually set on the vlan devices and HW having the ability to run checksum with longer headers. The issue starts when netdev_interesect_features() replaces NETIF_F_HW_CSUM with a combination of NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM, if the HW advertises IP|IPV6 specific checksums. This happens for tagged and multi-tagged packets. However, HW that enables IP|IPV6 checksum offloading doesn't gurantee that packets with arbitrarily long headers can be checksummed. This patch disables IP|IPV6 checksums on the packet for multi-tagged packets. CC: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> CC: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Acked-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-24Merge tag 'mlx5-fixes-2017-05-23' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-fixes-2017-05-23 Some TC offloads fixes from Or Gerlitz. From Erez, mlx5 IPoIB RX fix to improve GRO. From Mohamad, Command interface fix to improve mitigation against FW commands timeouts. From Tariq, Driver load Tolerance against affinity settings failures. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull ptrace fix from Eric Biederman: "This fixes a brown paper bag bug. When I fixed the ptrace interaction with user namespaces I added a new field ptracer_cred in struct_task and I failed to properly initialize it on fork. This dangling pointer wound up breaking runing setuid applications run from the enlightenment window manager. As this is the worst sort of bug. A regression breaking user space for no good reason let's get this fixed" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ptrace: Properly initialize ptracer_cred on fork
2017-05-24Merge tag 'mmc-v4.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "A couple of MMC host fixes intended for v4.12 rc3: - sdhci-xenon: Don't free data for phy allocated by devm* - sdhci-iproc: Suppress spurious interrupts - cavium: Fix probing race with regulator - cavium: Prevent crash with incomplete DT - cavium-octeon: Use proper GPIO name for power control - cavium-octeon: Fix interrupt enable code" * tag 'mmc-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read mmc: cavium: Fix probing race with regulator of/platform: Make of_platform_device_destroy globally visible mmc: cavium: Prevent crash with incomplete DT mmc: cavium-octeon: Use proper GPIO name for power control mmc: cavium-octeon: Fix interrupt enable code mmc: sdhci-xenon: kill xenon_clean_phy()
2017-05-23PCI/PM: Add needs_resume flag to avoid suspend complete optimizationImre Deak
Some drivers - like i915 - may not support the system suspend direct complete optimization due to differences in their runtime and system suspend sequence. Add a flag that when set resumes the device before calling the driver's system suspend handlers which effectively disables the optimization. Needed by a future patch fixing suspend/resume on i915. Suggested by Rafael. Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: stable@vger.kernel.org
2017-05-23libceph: use kbasename() and kill ceph_file_part()Ilya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Alex Elder <elder@linaro.org>
2017-05-23mlx5: fix bug reading rss_hash_type from CQEJesper Dangaard Brouer
Masks for extracting part of the Completion Queue Entry (CQE) field rss_hash_type was swapped, namely CQE_RSS_HTYPE_IP and CQE_RSS_HTYPE_L4. The bug resulted in setting skb->l4_hash, even-though the rss_hash_type indicated that hash was NOT computed over the L4 (UDP or TCP) part of the packet. Added comments from the datasheet, to make it more clear what these masks are selecting. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-23cdc-ether: divorce initialisation with a filter reset and a generic methodOliver Neukum
Some devices need their multicast filter reset but others are crashed by that. So the methods need to be separated. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reported-by: "Ridgway, Keith" <kridgway@harris.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-23net/mlx5: Avoid using pending command interface slotsMohamad Haj Yahia
Currently when firmware command gets stuck or it takes long time to complete, the driver command will get timeout and the command slot is freed and can be used for new commands, and if the firmware receive new command on the old busy slot its behavior is unexpected and this could be harmful. To fix this when the driver command gets timeout we return failure, but we don't free the command slot and we wait for the firmware to explicitly respond to that command. Once all the entries are busy we will stop processing new firmware commands. Fixes: 9cba4ebcf374 ('net/mlx5: Fix potential deadlock in command mode change') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Cc: kernel-team@fb.com Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-05-23ptrace: Properly initialize ptracer_cred on forkEric W. Biederman
When I introduced ptracer_cred I failed to consider the weirdness of fork where the task_struct copies the old value by default. This winds up leaving ptracer_cred set even when a process forks and the child process does not wind up being ptraced. Because ptracer_cred is not set on non-ptraced processes whose parents were ptraced this has broken the ability of the enlightenment window manager to start setuid children. Fix this by properly initializing ptracer_cred in ptrace_init_task This must be done with a little bit of care to preserve the current value of ptracer_cred when ptrace carries through fork. Re-reading the ptracer_cred from the ptracing process at this point is inconsistent with how PT_PTRACE_CAP has been maintained all of these years. Tested-by: Takashi Iwai <tiwai@suse.de> Fixes: 64b875f7ac8a ("ptrace: Capture the ptracer's creds not PT_PTRACE_CAP") Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2017-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Mostly netfilter bug fixes in here, but we have some bits elsewhere as well. 1) Don't do SNAT replies for non-NATed connections in IPVS, from Julian Anastasov. 2) Don't delete conntrack helpers while they are still in use, from Liping Zhang. 3) Fix zero padding in xtables's xt_data_to_user(), from Willem de Bruijn. 4) Add proper RCU protection to nf_tables_dump_set() because we cannot guarantee that we hold the NFNL_SUBSYS_NFTABLES lock. From Liping Zhang. 5) Initialize rcv_mss in tcp_disconnect(), from Wei Wang. 6) smsc95xx devices can't handle IPV6 checksums fully, so don't advertise support for offloading them. From Nisar Sayed. 7) Fix out-of-bounds access in __ip6_append_data(), from Eric Dumazet. 8) Make atl2_probe() propagate the error code properly on failures, from Alexey Khoroshilov. 9) arp_target[] in bond_check_params() is used uninitialized. This got changes from a global static to a local variable, which is how this mistake happened. Fix from Jarod Wilson. 10) Fix fallout from unnecessary NULL check removal in cls_matchall, from Jiri Pirko. This is definitely brown paper bag territory..." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) net: sched: cls_matchall: fix null pointer dereference vsock: use new wait API for vsock_stream_sendmsg() bonding: fix randomly populated arp target array net: Make IP alignment calulations clearer. bonding: fix accounting of active ports in 3ad net: atheros: atl2: don't return zero on failure path in atl2_probe() ipv6: fix out of bound writes in __ip6_append_data() bridge: start hello_timer when enabling KERNEL_STP in br_stp_start smsc95xx: Support only IPv4 TCP/UDP csum offload arp: always override existing neigh entries with gratuitous ARP arp: postpone addr_type calculation to as late as possible arp: decompose is_garp logic into a separate function arp: fixed error in a comment tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0 netfilter: xtables: fix build failure from COMPAT_XT_ALIGN outside CONFIG_COMPAT ebtables: arpreply: Add the standard target sanity check netfilter: nf_tables: revisit chain/object refcounting from elements netfilter: nf_tables: missing sanitization in data from userspace netfilter: nf_tables: can't assume lock is acquired when dumping set elems netfilter: synproxy: fix conntrackd interaction ...
2017-05-22blk-mq: remove blk_mq_abort_requeue_list()Ming Lei
No one uses it any more, so remove it. Reviewed-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-05-22of/platform: Make of_platform_device_destroy globally visibleJan Glauber
of_platform_device_destroy is the counterpart to of_platform_device_create which is a non-static function. After creating a platform device it might be neccessary to destroy it to deal with -EPROBE_DEFER where a repeated of_platform_device_create call would fail otherwise. Therefore also make of_platform_device_destroy globally visible. Signed-off-by: Jan Glauber <jglauber@cavium.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter/IPVS fixes for net The following patchset contains Netfilter/IPVS fixes for your net tree, they are: 1) When using IPVS in direct-routing mode, normal traffic from the LVS host to a back-end server is sometimes incorrectly NATed on the way back into the LVS host. Patch to fix this from Julian Anastasov. 2) Calm down clang compilation warning in ctnetlink due to type mismatch, from Matthias Kaehlcke. 3) Do not re-setup NAT for conntracks that are already confirmed, this is fixing a problem that was introduced in the previous nf-next batch. Patch from Liping Zhang. 4) Do not allow conntrack helper removal from userspace cthelper infrastructure if already in used. This comes with an initial patch to introduce nf_conntrack_helper_put() that is required by this fix. From Liping Zhang. 5) Zero the pad when copying data to userspace, otherwise iptables fails to remove rules. This is a follow up on the patchset that sorts out the internal match/target structure pointer leak to userspace. Patch from the same author, Willem de Bruijn. This also comes with a build failure when CONFIG_COMPAT is not on, coming in the last patch of this series. 6) SYNPROXY crashes with conntrack entries that are created via ctnetlink, more specifically via conntrackd state sync. Patch from Eric Leblond. 7) RCU safe iteration on set element dumping in nf_tables, from Liping Zhang. 8) Missing sanitization of immediate date for the bitwise and cmp expressions in nf_tables. 9) Refcounting logic for chain and objects from set elements does not integrate into the nf_tables 2-phase commit protocol. 10) Missing sanitization of target verdict in ebtables arpreply target, from Gao Feng. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-20Merge tag 'trace-v4.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: - Fix a bug caused by not cleaning up the new instance unique triggers when deleting an instance. It also creates a selftest that triggers that bug. - Fix the delayed optimization happening after kprobes boot up self tests being removed by freeing of init memory. - Comment kprobes on why the delay optimization is not a problem for removal of modules, to keep other developers from searching that riddle. - Fix another case of rcu not watching in stack trace tracing. * tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Make sure RCU is watching before calling a stack trace kprobes: Document how optimized kprobes are removed from module unload selftests/ftrace: Add test to remove instance with active event triggers selftests/ftrace: Fix bashisms ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub ftrace/instances: Clear function triggers when removing instances ftrace: Simplify glob handling in unregister_ftrace_function_probe_func() tracing/kprobes: Enforce kprobes teardown after testing tracing: Move postpone selftests to core from early_initcall
2017-05-20Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A small collection of fixes that should go into this cycle. - a pull request from Christoph for NVMe, which ended up being manually applied to avoid pulling in newer bits in master. Mostly fibre channel fixes from James, but also a few fixes from Jon and Vijay - a pull request from Konrad, with just a single fix for xen-blkback from Gustavo. - a fuseblk bdi fix from Jan, fixing a regression in this series with the dynamic backing devices. - a blktrace fix from Shaohua, replacing sscanf() with kstrtoull(). - a request leak fix for drbd from Lars, fixing a regression in the last series with the kref changes. This will go to stable as well" * 'for-linus' of git://git.kernel.dk/linux-block: nvmet: release the sq ref on rdma read errors nvmet-fc: remove target cpu scheduling flag nvme-fc: stop queues on error detection nvme-fc: require target or discovery role for fc-nvme targets nvme-fc: correct port role bits nvme: unmap CMB and remove sysfs file in reset path blktrace: fix integer parse fuseblk: Fix warning in super_setup_bdi_name() block: xen-blkback: add null check to avoid null pointer dereference drbd: fix request leak introduced by locking/atomic, kref: Kill kref_sub()
2017-05-20nvmet-fc: remove target cpu scheduling flagJames Smart
Remove NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED. It's unnecessary. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20nvme-fc: correct port role bitsJames Smart
FC Port roles is a bit mask, not individual values. Correct nvme definitions to unique bits. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20Merge tag 'usb-4.12-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of small USB fixes for 4.12-rc2 Most of them come from Johan, in his valiant quest to fix up all drivers that could be affected by "malicious" USB devices. There's also some fixes for more "obscure" drivers to handle some of the vmalloc stack fallout (which for USB drivers, was always the case, but very few people actually ran those systems...) Other than that, the normal set of xhci and gadget and musb driver fixes as well. All have been in linux-next with no reported issues" * tag 'usb-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits) usb: musb: tusb6010_omap: Do not reset the other direction's packet size usb: musb: Fix trying to suspend while active for OTG configurations usb: host: xhci-plat: propagate return value of platform_get_irq() xhci: Fix command ring stop regression in 4.11 xhci: remove GFP_DMA flag from allocation USB: xhci: fix lock-inversion problem usb: host: xhci-ring: don't need to clear interrupt pending for MSI enabled hcd usb: host: xhci-mem: allocate zeroed Scratchpad Buffer xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton usb: xhci: trace URB before giving it back instead of after USB: serial: qcserial: add more Lenovo EM74xx device IDs USB: host: xhci: use max-port define USB: hub: fix SS max number of ports USB: hub: fix non-SS hub-descriptor handling USB: hub: fix SS hub-descriptor handling USB: usbip: fix nonconforming hub descriptor USB: gadget: dummy_hcd: fix hub-descriptor removable fields doc-rst: fixed kernel-doc directives in usb/typec.rst USB: core: of: document reference taken by companion helper USB: ehci-platform: fix companion-device leak ...
2017-05-19Merge branch 'libnvdimm-for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "A couple of compile fixes. With the removal of the ->direct_access() method from block_device_operations in favor of a new dax_device + dax_operations we broke two configurations. The CONFIG_BLOCK=n case is fixed by compiling out the block+dax helpers in the dax core. Configurations with FS_DAX=n EXT4=y / XFS=y and DAX=m fail due to the helpers the builtin filesystem needs being in a module, so we stub out the helpers in the FS_DAX=n case." * 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n case dax: fix false CONFIG_BLOCK dependency
2017-05-19Merge tag 'devicetree-fixes-for-4.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: - fix missing allocation failure handling in fdt code - fix dtc compile error on 32-bit hosts - revert bad sparse changes causing GCC7 warnings * tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: fdt: add missing allocation-failure check dtc: check.c fix compile error Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
2017-05-19Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "We had a small batch of fixes before -rc1, but here is a larger one. It contains a backmerge of 4.12-rc1 since some of the downstream branches we merge had that as base; at the same time we already had merged contents before -rc1 and rebase wasn't the right solution. A mix of random smaller fixes and a few things worth pointing out: - We've started telling people to avoid cross-tree shared branches if all they're doing is picking up one or two DT-used constants from a shared include file, and instead to use the numeric values on first submission. Follow-up moving over to symbolic names are sent in right after -rc1, i.e. here. It's only a few minor patches of this type. - Linus Walleij and others are resurrecting the 'Gemini' platform, and wanted a cut-down platform-specific defconfig for it. So I picked that up for them. - Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it helps people to prepare patches since it's a pain when defconfig and current savedefconfig contents differs too much. - Devicetree additions for some pinctrl drivers for Armada that were merged this window. I'd have preferred to see those earlier but it's not a huge deail. The biggest change worth pointing out though since it's touching other parts of the tree: We added prefixes to be used when cross-including DT contents between arm64 and arm, allowing someone to #include <arm/foo.dtsi> from arm64, and likewise. As part of that, we needed arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko resulted in a recursive symlink. Instead, I've now moved it out of arch/*/boot/dts/include, into a shared location under scripts/dtc. While I was at it, I consolidated so all architectures now behave the same way in this manner. Rob Herring (DT maintainer) has acked it. I cc:d most other arch maintainers but nobody seems to care much; it doesn't really affect them since functionality is unchanged for them by default" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits) arm64: dts: rockchip: fix include reference firmware: ti_sci: fix strncat length check ARM: remove duplicate 'const' annotations' arm64: defconfig: enable options needed for QCom DB410c board arm64: defconfig: sync with savedefconfig ARM: configs: add a gemini defconfig devicetree: Move include prefixes from arch to separate directory ARM: dts: dra7: Reduce cpu thermal shutdown temperature memory: omap-gpmc: Fix debug output for access width ARM: dts: LogicPD Torpedo: Fix camera pin mux ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES ARM: dts: gta04: fix polarity of clocks for mcbsp4 ARM: dts: dra7: Add power hold and power controller properties to palmas soc: imx: add PM dependency for IMX7_PM_DOMAINS ARM: dts: imx6sx-sdb: Remove OPP override ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin soc: bcm: brcmstb: Correctly match 7435 SoC tee: add ARM_SMCCC dependency ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable ARM64: dts: mediatek: configure some fixed mmc parameters ...
2017-05-18Merge tag 'v4.12-rc1' into fixesOlof Johansson
We've received a few fixes branches with -rc1 as base, but our contents was still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on hat was actually merged. Signed-off-by: Olof Johansson <olof@lixom.net>
2017-05-18tty/serdev: add serdev registration interfaceJohan Hovold
Add a new interface for registering a serdev controller and clients, and a helper function to deregister serdev devices (or a tty device) that were previously registered using the new interface. Once every driver currently using the tty_port_register_device() helpers have been vetted and converted to use the new serdev registration interface (at least for deregistration), we can move serdev registration to the current helpers and get rid of the serdev-specific functions. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18serdev: Restore serdev_device_write_buf for atomic contextStefan Wahren
Starting with commit 6fe729c4bdae ("serdev: Add serdev_device_write subroutine") the function serdev_device_write_buf cannot be used in atomic context anymore (mutex_lock is sleeping). So restore the old behavior. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 6fe729c4bdae ("serdev: Add serdev_device_write subroutine") Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18usb: host: xhci-ring: don't need to clear interrupt pending for MSI enabled hcdPeter Chen
According to xHCI spec Figure 30: Interrupt Throttle Flow Diagram If PCI Message Signaled Interrupts (MSI or MSI-X) are enabled, then the assertion of the Interrupt Pending (IP) flag in Figure 30 generates a PCI Dword write. The IP flag is automatically cleared by the completion of the PCI write. the MSI enabled HCs don't need to clear interrupt pending bit, but hcd->irq = 0 doesn't equal to MSI enabled HCD. At some Dual-role controller software designs, it sets hcd->irq as 0 to avoid HCD requesting interrupt, and they want to decide when to call usb_hcd_irq by software. Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-17tracing/kprobes: Enforce kprobes teardown after testingThomas Gleixner
Enabling the tracer selftest triggers occasionally the warning in text_poke(), which warns when the to be modified page is not marked reserved. The reason is that the tracer selftest installs kprobes on functions marked __init for testing. These probes are removed after the tests, but that removal schedules the delayed kprobes_optimizer work, which will do the actual text poke. If the work is executed after the init text is freed, then the warning triggers. The bug can be reproduced reliably when the work delay is increased. Flush the optimizer work and wait for the optimizing/unoptimizing lists to become empty before returning from the kprobes tracer selftest. That ensures that all operations which were queued due to the probes removal have completed. Link: http://lkml.kernel.org/r/20170516094802.76a468bb@gandalf.local.home Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: stable@vger.kernel.org Fixes: 6274de498 ("kprobes: Support delayed unoptimizing") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-05-16ebtables: arpreply: Add the standard target sanity checkGao Feng
The info->target comes from userspace and it would be used directly. So we need to add the sanity check to make sure it is a valid standard target, although the ebtables tool has already checked it. Kernel needs to validate anything coming from userspace. If the target is set as an evil value, it would break the ebtables and cause a panic. Because the non-standard target is treated as one offset. Now add one helper function ebt_invalid_target, and we would replace the macro INVALID_TARGET later. Signed-off-by: Gao Feng <gfree.wind@vip.163.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-05-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Track alignment in BPF verifier so that legitimate programs won't be rejected on !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS architectures. 2) Make tail calls work properly in arm64 BPF JIT, from Deniel Borkmann. 3) Make the configuration and semantics Generic XDP make more sense and don't allow both generic XDP and a driver specific instance to be active at the same time. Also from Daniel. 4) Don't crash on resume in xen-netfront, from Vitaly Kuznetsov. 5) Fix use-after-free in VRF driver, from Gao Feng. 6) Use netdev_alloc_skb_ip_align() to avoid unaligned IP headers in qca_spi driver, from Stefan Wahren. 7) Always run cleanup routines in BPF samples when we get SIGTERM, from Andy Gospodarek. 8) The mdio phy code should bring PHYs out of reset using the shared GPIO lines before invoking bus->reset(). From Florian Fainelli. 9) Some USB descriptor access endian fixes in various drivers from Johan Hovold. 10) Handle PAUSE advertisements properly in mlx5 driver, from Gal Pressman. 11) Fix reversed test in mlx5e_setup_tc(), from Saeed Mahameed. 12) Cure netdev leak in AF_PACKET when using timestamping via control messages. From Douglas Caetano dos Santos. 13) netcp doesn't support HWTSTAMP_FILTER_ALl, reject it. From Miroslav Lichvar. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits) ldmvsw: stop the clean timer at beginning of remove ldmvsw: unregistering netdev before disable hardware net: netcp: fix check of requested timestamping filter ipv6: avoid dad-failures for addresses with NODAD qed: Fix uninitialized data in aRFS infrastructure mdio: mux: fix device_node_continue.cocci warnings net/packet: fix missing net_device reference release net/mlx4_core: Use min3 to select number of MSI-X vectors macvlan: Fix performance issues with vlan tagged packets net: stmmac: use correct pointer when printing normal descriptor ring net/mlx5: Use underlay QPN from the root name space net/mlx5e: IPoIB, Only support regular RQ for now net/mlx5e: Fix setup TC ndo net/mlx5e: Fix ethtool pause support and advertise reporting net/mlx5e: Use the correct pause values for ethtool advertising vmxnet3: ensure that adapter is in proper state during force_close sfc: revert changes to NIC revision numbers net: ch9200: add missing USB-descriptor endianness conversions net: irda: irda-usb: fix firmware name on big-endian hosts net: dsa: mv88e6xxx: add default case to switch ...
2017-05-15netfilter: xtables: zero padding in data_to_userWillem de Bruijn
When looking up an iptables rule, the iptables binary compares the aligned match and target data (XT_ALIGN). In some cases this can exceed the actual data size to include padding bytes. Before commit f77bc5b23fb1 ("iptables: use match, target and data copy_to_user helpers") the malloc()ed bytes were overwritten by the kernel with kzalloced contents, zeroing the padding and making the comparison succeed. After this patch, the kernel copies and clears only data, leaving the padding bytes undefined. Extend the clear operation from data size to aligned data size to include the padding bytes, if any. Padding bytes can be observed in both match and target, and the bug triggered, by issuing a rule with match icmp and target ACCEPT: iptables -t mangle -A INPUT -i lo -p icmp --icmp-type 1 -j ACCEPT iptables -t mangle -D INPUT -i lo -p icmp --icmp-type 1 -j ACCEPT Fixes: f77bc5b23fb1 ("iptables: use match, target and data copy_to_user helpers") Reported-by: Paul Moore <pmoore@redhat.com> Reported-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-05-14net/mlx5: Use underlay QPN from the root name spaceYishai Hadas
Root flow table is dynamically changed by the underlying flow steering layer, and IPoIB/ULPs have no idea what will be the root flow table in the future, hence we need a dynamic infrastructure to move Underlay QPs with the root flow table. Fixes: b3ba51498bdd ("net/mlx5: Refactor create flow table method to accept underlay QP") Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-05-13dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n caseDan Williams
Tetsuo reports: fs/built-in.o: In function `xfs_file_iomap_end': xfs_iomap.c:(.text+0xe0ef9): undefined reference to `put_dax' fs/built-in.o: In function `xfs_file_iomap_begin': xfs_iomap.c:(.text+0xe1a7f): undefined reference to `dax_get_by_host' make: *** [vmlinux] Error 1 $ grep DAX .config CONFIG_DAX=m # CONFIG_DEV_DAX is not set # CONFIG_FS_DAX is not set When FS_DAX=n we can/must throw away the dax code in filesystems. Implement 'fs_' versions of dax_get_by_host() and put_dax() that are nops in the FS_DAX=n case. Cc: <linux-xfs@vger.kernel.org> Cc: <linux-ext4@vger.kernel.org> Cc: Jan Kara <jack@suse.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: "Darrick J. Wong" <darrick.wong@oracle.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Tested-by: Tony Luck <tony.luck@intel.com> Fixes: ef51042472f5 ("block, dax: move 'select DAX' from BLOCK to FS_DAX") Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-05-13Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm, docs: update memory.stat description with workingset* entries mm: vmscan: scan until it finds eligible pages mm, thp: copying user pages must schedule on collapse dax: fix PMD data corruption when fault races with write dax: fix data corruption when fault races with write ext4: return to starting transaction in ext4_dax_huge_fault() mm: fix data corruption due to stale mmap reads dax: prevent invalidation of mapped DAX entries Tigran has moved mm, vmalloc: fix vmalloc users tracking properly mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin gcov: support GCC 7.1 mm, vmstat: Remove spurious WARN() during zoneinfo print time: delete current_fs_time() hwpoison, memcg: forcibly uncharge LRU pages
2017-05-12dax: prevent invalidation of mapped DAX entriesRoss Zwisler
Patch series "mm,dax: Fix data corruption due to mmap inconsistency", v4. This series fixes data corruption that can happen for DAX mounts when page faults race with write(2) and as a result page tables get out of sync with block mappings in the filesystem and thus data seen through mmap is different from data seen through read(2). The series passes testing with t_mmap_stale test program from Ross and also other mmap related tests on DAX filesystem. This patch (of 4): dax_invalidate_mapping_entry() currently removes DAX exceptional entries only if they are clean and unlocked. This is done via: invalidate_mapping_pages() invalidate_exceptional_entry() dax_invalidate_mapping_entry() However, for page cache pages removed in invalidate_mapping_pages() there is an additional criteria which is that the page must not be mapped. This is noted in the comments above invalidate_mapping_pages() and is checked in invalidate_inode_page(). For DAX entries this means that we can can end up in a situation where a DAX exceptional entry, either a huge zero page or a regular DAX entry, could end up mapped but without an associated radix tree entry. This is inconsistent with the rest of the DAX code and with what happens in the page cache case. We aren't able to unmap the DAX exceptional entry because according to its comments invalidate_mapping_pages() isn't allowed to block, and unmap_mapping_range() takes a write lock on the mapping->i_mmap_rwsem. Since we essentially never have unmapped DAX entries to evict from the radix tree, just remove dax_invalidate_mapping_entry(). Fixes: c6dcf52c23d2 ("mm: Invalidate DAX radix tree entries only if appropriate") Link: http://lkml.kernel.org/r/20170510085419.27601-2-jack@suse.cz Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Jan Kara <jack@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> [4.10+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-12mm, vmalloc: fix vmalloc users tracking properlyMichal Hocko
Commit 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users") has pulled asm/pgtable.h include dependency to linux/vmalloc.h and that turned out to be a bad idea for some architectures. E.g. m68k fails with In file included from arch/m68k/include/asm/pgtable_mm.h:145:0, from arch/m68k/include/asm/pgtable.h:4, from include/linux/vmalloc.h:9, from arch/m68k/kernel/module.c:9: arch/m68k/include/asm/mcf_pgtable.h: In function 'nocache_page': >> arch/m68k/include/asm/mcf_pgtable.h:339:43: error: 'init_mm' undeclared (first use in this function) #define pgd_offset_k(address) pgd_offset(&init_mm, address) as spotted by kernel build bot. nios2 fails for other reason In file included from include/asm-generic/io.h:767:0, from arch/nios2/include/asm/io.h:61, from include/linux/io.h:25, from arch/nios2/include/asm/pgtable.h:18, from include/linux/mm.h:70, from include/linux/pid_namespace.h:6, from include/linux/ptrace.h:9, from arch/nios2/include/uapi/asm/elf.h:23, from arch/nios2/include/asm/elf.h:22, from include/linux/elf.h:4, from include/linux/module.h:15, from init/main.c:16: include/linux/vmalloc.h: In function '__vmalloc_node_flags': include/linux/vmalloc.h:99:40: error: 'PAGE_KERNEL' undeclared (first use in this function); did you mean 'GFP_KERNEL'? which is due to the newly added #include <asm/pgtable.h>, which on nios2 includes <linux/io.h> and thus <asm/io.h> and <asm-generic/io.h> which again includes <linux/vmalloc.h>. Tweaking that around just turns out a bigger headache than necessary. This patch reverts 1f5307b1e094 and reimplements the original fix in a different way. __vmalloc_node_flags can stay static inline which will cover vmalloc* functions. We only have one external user (kvmalloc_node) and we can export __vmalloc_node_flags_caller and provide the caller directly. This is much simpler and it doesn't really need any games with header files. [akpm@linux-foundation.org: coding-style fixes] [mhocko@kernel.org: revert old comment] Link: http://lkml.kernel.org/r/20170509211054.GB16325@dhcp22.suse.cz Fixes: 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users") Link: http://lkml.kernel.org/r/20170509153702.GR6481@dhcp22.suse.cz Signed-off-by: Michal Hocko <mhocko@suse.com> Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-12time: delete current_fs_time()Deepa Dinamani
All uses of the current_fs_time() function have been replaced by other time interfaces. And, its use cases can be fulfilled by current_time() or ktime_get_* variants. Link: http://lkml.kernel.org/r/1491613030-11599-13-git-send-email-deepa.kernel@gmail.com Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-12Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "Incremental fixes and a small feature addition on top of the main libnvdimm 4.12 pull request: - Geert noticed that tinyconfig was bloated by BLOCK selecting DAX. The size regression is fixed by moving all dax helpers into the dax-core and only specifying "select DAX" for FS_DAX and dax-capable drivers. He also asked for clarification of the NR_DEV_DAX config option which, on closer look, does not need to be a config option at all. Mike also throws in a DEV_DAX_PMEM fixup for good measure. - Ben's attention to detail on -stable patch submissions caught a case where the recent fixes to arch_copy_from_iter_pmem() missed a condition where we strand dirty data in the cache. This is tagged for -stable and will also be included in the rework of the pmem api to a proposed {memcpy,copy_user}_flushcache() interface for 4.13. - Vishal adds a feature that missed the initial pull due to pending review feedback. It allows the kernel to clear media errors when initializing a BTT (atomic sector update driver) instance on a pmem namespace. - Ross noticed that the dax_device + dax_operations conversion broke __dax_zero_page_range(). The nvdimm unit tests fail to check this path, but xfstests immediately trips over it. No excuse for missing this before submitting the 4.12 pull request. These all pass the nvdimm unit tests and an xfstests spot check. The set has received a build success notification from the kbuild robot" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: filesystem-dax: fix broken __dax_zero_page_range() conversion libnvdimm, btt: ensure that initializing metadata clears poison libnvdimm: add an atomic vs process context flag to rw_bytes x86, pmem: Fix cache flushing for iovec write < 8 bytes device-dax: kill NR_DEV_DAX block, dax: move "select DAX" from BLOCK to FS_DAX device-dax: Tell kbuild DEV_DAX_PMEM depends on DEV_DAX
2017-05-12Merge tag 'for-v4.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull more power-supply updates from Sebastian Reichel: "The power-supply subsystem has a few more changes for the v4.12 merge window: - New battery driver for AXP20X and AXP22X PMICs - Improve max17042_battery for usage on x86 - Misc small cleanups & fixes" * tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (34 commits) power: supply: cpcap-charger: Keep trickle charger bits disabled power: supply: cpcap-charger: Fix enable for 3.8V charge setting power: supply: cpcap-charger: Fix charge voltage configuration power: supply: cpcap-charger: Fix charger name power: supply: twl4030-charger: make twl4030_bci_property_is_writeable static power: supply: sbs-battery: Add alert callback mailmap: add Sebastian Reichel power: supply: avoid unused twl4030-madc.h power: supply: sbs-battery: Correct supply status with current draw power: supply: sbs-battery: Don't ignore the first external power change power: supply: pda_power: move from timer to delayed_work power: supply: max17042_battery: Add support for the SCOPE property power: supply: max17042_battery: Add support for the CHARGE_NOW property power: supply: max17042_battery: Add support for the CHARGE_FULL_DESIGN property power: supply: max17042_battery: mAh readings depend on r_sns value power: supply: max17042_battery: Add support for the VOLT_MIN property power: supply: max17042_battery: Add support for the TECHNOLOGY attribute power: supply: max17042_battery: Add external_power_changed callback power: supply: max17042_battery: Add support for the STATUS property power: supply: max17042_battery: Add default platform_data fallback data ...
2017-05-12Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - Fix a problem where orderly_shutdown() is called for multiple times due to multiple critical overheating events raised in a short period by platform thermal driver. (Keerthy) - Introduce a backup thermal shutdown mechanism, which invokes kernel_power_off()/emergency_restart() directly, after orderly_shutdown() being issued for certain amount of time(specified via Kconfig). This is useful in certain conditions that userspace may be unable to power off the system in a clean manner and leaves the system in a critical state, like in the middle of driver probing phase. (Keerthy) - Introduce a new interface in thermal devfreq_cooling code so that the driver can provide more precise data regarding actual power to the thermal governor every time the power budget is calculated. (Lukasz Luba) - Introduce BCM 2835 soc thermal driver and northstar thermal driver, within a new sub-folder. (Rafał Miłecki) - Introduce DA9062/61 thermal driver. (Steve Twiss) - Remove non-DT booting on TI-SoC driver. Also add support to fetching coefficients from DT. (Keerthy) - Refactorf RCAR Gen3 thermal driver. (Niklas Söderlund) - Small fix on MTK and intel-soc-dts thermal driver. (Dawei Chien, Brian Bian) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits) thermal: core: Add a back up thermal shutdown mechanism thermal: core: Allow orderly_poweroff to be called only once Thermal: Intel SoC DTS: Change interrupt request behavior trace: thermal: add another parameter 'power' to the tracing function thermal: devfreq_cooling: add new interface for direct power read thermal: devfreq_cooling: refactor code and add get_voltage function thermal: mt8173: minor mtk_thermal.c cleanups thermal: bcm2835: move to the broadcom subdirectory thermal: broadcom: ns: specify myself as MODULE_AUTHOR thermal: da9062/61: Thermal junction temperature monitoring driver Documentation: devicetree: thermal: da9062/61 TJUNC temperature binding thermal: broadcom: add Northstar thermal driver dt-bindings: thermal: add support for Broadcom's Northstar thermal thermal: bcm2835: add thermal driver for bcm2835 SoC dt-bindings: Add thermal zone to bcm2835-thermal example thermal: rcar_gen3_thermal: add suspend and resume support thermal: rcar_gen3_thermal: store device match data in private structure thermal: rcar_gen3_thermal: enable hardware interrupts for trip points thermal: rcar_gen3_thermal: record and check number of TSCs found thermal: rcar_gen3_thermal: check that TSC exists before memory allocation ...
2017-05-12Merge branch 'work.sane_pwd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "Making sure that something like a referral point won't end up as pwd or root. The main part is the last commit (fixing mntns_install()); that one fixes a hard-to-hit race. The fchdir() commit is making fchdir(2) a bit more robust - it should be impossible to get opened files (even O_PATH ones) for referral points in the first place, so the existing checks are OK, but checking the same thing as in chdir(2) is just as cheap. The path_init() commit removes a redundant check that shouldn't have been there in the first place" * 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: make sure that mntns_install() doesn't end up with referral for root path_init(): don't bother with checking MAY_EXEC for LOOKUP_ROOT make sure that fchdir() won't accept referral points, etc.
2017-05-12Merge tag 'powerpc-4.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull more powerpc updates from Michael Ellerman: "The change to the Linux page table geometry was delayed for more testing with 16G pages, and there's the new CPU features stuff which just needed one more polish before going in. Plus a few changes from Scott which came in a bit late. And then various fixes, mostly minor. Summary highlights: - rework the Linux page table geometry to lower memory usage on 64-bit Book3S (IBM chips) using the Hash MMU. - support for a new device tree binding for discovering CPU features on future firmwares. - Freescale updates from Scott: "Includes a fix for a powerpc/next mm regression on 64e, a fix for a kernel hang on 64e when using a debugger inside a relocated kernel, a qman fix, and misc qe improvements." Thanks to: Christophe Leroy, Gavin Shan, Horia Geantă, LiuHailong, Nicholas Piggin, Roy Pledge, Scott Wood, Valentin Longchamp" * tag 'powerpc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Support new device tree binding for discovering CPU features powerpc: Don't print cpu_spec->cpu_name if it's NULL of/fdt: introduce of_scan_flat_dt_subnodes and of_get_flat_dt_phandle powerpc/64s: Fix unnecessary machine check handler relocation branch powerpc/mm/book3s/64: Rework page table geometry for lower memory usage powerpc: Fix distclean with Makefile.postlink powerpc/64e: Don't place the stack beyond TASK_SIZE powerpc/powernv: Block PCI config access on BCM5718 during EEH recovery powerpc/8xx: Adding support of IRQ in MPC8xx GPIO soc/fsl/qbman: Disable IRQs for deferred QBMan work soc/fsl/qe: add EXPORT_SYMBOL for the 2 qe_tdm functions soc/fsl/qe: only apply QE_General4 workaround on affected SoCs soc/fsl/qe: round brg_freq to 1kHz granularity soc/fsl/qe: get rid of immrbar_virt_to_phys() net: ethernet: ucc_geth: fix MEM_PART_MURAM mode powerpc/64e: Fix hang when debugging programs with relocated kernel
2017-05-11xdp: refine xdp api with regards to generic xdpDaniel Borkmann
While working on the iproute2 generic XDP frontend, I noticed that as of right now it's possible to have native *and* generic XDP programs loaded both at the same time for the case when a driver supports native XDP. The intended model for generic XDP from b5cdae3291f7 ("net: Generic XDP") is, however, that only one out of the two can be present at once which is also indicated as such in the XDP netlink dump part. The main rationale for generic XDP is to ease accessibility (in case a driver does not yet have XDP support) and to generically provide a semantical model as an example for driver developers wanting to add XDP support. The generic XDP option for an XDP aware driver can still be useful for comparing and testing both implementations. However, it is not intended to have a second XDP processing stage or layer with exactly the same functionality of the first native stage. Only reason could be to have a partial fallback for future XDP features that are not supported yet in the native implementation and we probably also shouldn't strive for such fallback and instead encourage native feature support in the first place. Given there's currently no such fallback issue or use case, lets not go there yet if we don't need to. Therefore, change semantics for loading XDP and bail out if the user tries to load a generic XDP program when a native one is present and vice versa. Another alternative to bailing out would be to handle the transition from one flavor to another gracefully, but that would require to bring the device down, exchange both types of programs, and bring it up again in order to avoid a tiny window where a packet could hit both hooks. Given this complicates the logic for just a debugging feature in the native case, I went with the simpler variant. For the dump, remove IFLA_XDP_FLAGS that was added with b5cdae3291f7 and reuse IFLA_XDP_ATTACHED for indicating the mode. Dumping all or just a subset of flags that were used for loading the XDP prog is suboptimal in the long run since not all flags are useful for dumping and if we start to reuse the same flag definitions for load and dump, then we'll waste bit space. What we really just want is to dump the mode for now. Current IFLA_XDP_ATTACHED semantics are: nothing was installed (0), a program is running at the native driver layer (1). Thus, add a mode that says that a program is running at generic XDP layer (2). Applications will handle this fine in that older binaries will just indicate that something is attached at XDP layer, effectively this is similar to IFLA_XDP_FLAGS attr that we would have had modulo the redundancy. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>