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2018-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds16-195/+310
Pull networking fixes from David Miller: 1) The sockmap code has to free socket memory on close if there is corked data, from John Fastabend. 2) Tunnel names coming from userspace need to be length validated. From Eric Dumazet. 3) arp_filter() has to take VRFs properly into account, from Miguel Fadon Perlines. 4) Fix oops in error path of tcf_bpf_init(), from Davide Caratti. 5) Missing idr_remove() in u32_delete_key(), from Cong Wang. 6) More syzbot stuff. Several use of uninitialized value fixes all over, from Eric Dumazet. 7) Do not leak kernel memory to userspace in sctp, also from Eric Dumazet. 8) Discard frames from unused ports in DSA, from Andrew Lunn. 9) Fix DMA mapping and reset/failover problems in ibmvnic, from Thomas Falcon. 10) Do not access dp83640 PHY registers prematurely after reset, from Esben Haabendal. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) vhost-net: set packet weight of tx polling to 2 * vq size net: thunderx: rework mac addresses list to u64 array inetpeer: fix uninit-value in inet_getpeer dp83640: Ensure against premature access to PHY registers after reset devlink: convert occ_get op to separate registration ARM: dts: ls1021a: Specify TBIPA register address net/fsl_pq_mdio: Allow explicit speficition of TBIPA address ibmvnic: Do not reset CRQ for Mobility driver resets ibmvnic: Fix failover case for non-redundant configuration ibmvnic: Fix reset scheduler error handling ibmvnic: Zero used TX descriptor counter on reset ibmvnic: Fix DMA mapping mistakes tipc: use the right skb in tipc_sk_fill_sock_diag() sctp: sctp_sockaddr_af must check minimal addr length for AF_INET6 net: dsa: Discard frames from unused ports sctp: do not leak kernel memory to user space soreuseport: initialise timewait reuseport field ipv4: fix uninit-value in ip_route_output_key_hash_rcu() dccp: initialize ireq->ir_mark net: fix uninit-value in __hw_addr_add_ex() ...
2018-04-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-3/+1
Pull kvm updates from Paolo Bonzini: "ARM: - VHE optimizations - EL2 address space randomization - speculative execution mitigations ("variant 3a", aka execution past invalid privilege register access) - bugfixes and cleanups PPC: - improvements for the radix page fault handler for HV KVM on POWER9 s390: - more kvm stat counters - virtio gpu plumbing - documentation - facilities improvements x86: - support for VMware magic I/O port and pseudo-PMCs - AMD pause loop exiting - support for AMD core performance extensions - support for synchronous register access - expose nVMX capabilities to userspace - support for Hyper-V signaling via eventfd - use Enlightened VMCS when running on Hyper-V - allow userspace to disable MWAIT/HLT/PAUSE vmexits - usual roundup of optimizations and nested virtualization bugfixes Generic: - API selftest infrastructure (though the only tests are for x86 as of now)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (174 commits) kvm: x86: fix a prototype warning kvm: selftests: add sync_regs_test kvm: selftests: add API testing infrastructure kvm: x86: fix a compile warning KVM: X86: Add Force Emulation Prefix for "emulate the next instruction" KVM: X86: Introduce handle_ud() KVM: vmx: unify adjacent #ifdefs x86: kvm: hide the unused 'cpu' variable KVM: VMX: remove bogus WARN_ON in handle_ept_misconfig Revert "KVM: X86: Fix SMRAM accessing even if VM is shutdown" kvm: Add emulation for movups/movupd KVM: VMX: raise internal error for exception during invalid protected mode state KVM: nVMX: Optimization: Dont set KVM_REQ_EVENT when VMExit with nested_run_pending KVM: nVMX: Require immediate-exit when event reinjected to L2 and L1 event pending KVM: x86: Fix misleading comments on handling pending exceptions KVM: x86: Rename interrupt.pending to interrupt.injected KVM: VMX: No need to clear pending NMI/interrupt on inject realmode interrupt x86/kvm: use Enlightened VMCS when running on Hyper-V x86/hyper-v: detect nested features x86/hyper-v: define struct hv_enlightened_vmcs and clean field bits ...
2018-04-09Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds9-466/+108
Pull ARM SA1100 updates from Russell King: "We have support for arbitary MMIO registers providing platform GPIOs, which allows us to abstract some of the SA11x0 CF support. This set of updates makes that change" * 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: sa1100/simpad: switch simpad CF to use gpiod APIs ARM: sa1100/shannon: convert to generic CF sockets ARM: sa1100/nanoengine: convert to generic CF sockets ARM: sa1100/h3xxx: switch h3xxx PCMCIA to use gpiod APIs ARM: sa1100/cerf: convert to generic CF sockets ARM: sa1100/assabet: convert to generic CF sockets ARM: sa1100: provide infrastructure to support generic CF sockets pcmcia: sa1100: provide generic CF support
2018-04-09Merge branch 'for-linus' of ↵Linus Torvalds26-239/+981
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: - Improvements for the spectre defense: * The spectre related code is consolidated to a single file nospec-branch.c * Automatic enable/disable for the spectre v2 defenses (expoline vs. nobp) * Syslog messages for specve v2 are added * Enable CONFIG_GENERIC_CPU_VULNERABILITIES and define the attribute functions for spectre v1 and v2 - Add helper macros for assembler alternatives and use them to shorten the code in entry.S. - Add support for persistent configuration data via the SCLP Store Data interface. The H/W interface requires a page table that uses 4K pages only, the code to setup such an address space is added as well. - Enable virtio GPU emulation in QEMU. To do this the depends statements for a few common Kconfig options are modified. - Add support for format-3 channel path descriptors and add a binary sysfs interface to export the associated utility strings. - Add a sysfs attribute to control the IFCC handling in case of constant channel errors. - The vfio-ccw changes from Cornelia. - Bug fixes and cleanups. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (40 commits) s390/kvm: improve stack frame constants in entry.S s390/lpp: use assembler alternatives for the LPP instruction s390/entry.S: use assembler alternatives s390: add assembler macros for CPU alternatives s390: add sysfs attributes for spectre s390: report spectre mitigation via syslog s390: add automatic detection of the spectre defense s390: move nobp parameter functions to nospec-branch.c s390/cio: add util_string sysfs attribute s390/chsc: query utility strings via fmt3 channel path descriptor s390/cio: rename struct channel_path_desc s390/cio: fix unbind of io_subchannel_driver s390/qdio: split up CCQ handling for EQBS / SQBS s390/qdio: don't retry EQBS after CCQ 96 s390/qdio: restrict buffer merging to eligible devices s390/qdio: don't merge ERROR output buffers s390/qdio: simplify math in get_*_buffer_frontier() s390/decompressor: trim uncompressed image head during the build s390/crypto: Fix kernel crash on aes_s390 module remove. s390/defkeymap: fix global init to zero ...
2018-04-09vhost-net: set packet weight of tx polling to 2 * vq sizehaibinzhang(张海斌)1-1/+7
handle_tx will delay rx for tens or even hundreds of milliseconds when tx busy polling udp packets with small length(e.g. 1byte udp payload), because setting VHOST_NET_WEIGHT takes into account only sent-bytes but no single packet length. Ping-Latencies shown below were tested between two Virtual Machines using netperf (UDP_STREAM, len=1), and then another machine pinged the client: vq size=256 Packet-Weight Ping-Latencies(millisecond) min avg max Origin 3.319 18.489 57.303 64 1.643 2.021 2.552 128 1.825 2.600 3.224 256 1.997 2.710 4.295 512 1.860 3.171 4.631 1024 2.002 4.173 9.056 2048 2.257 5.650 9.688 4096 2.093 8.508 15.943 vq size=512 Packet-Weight Ping-Latencies(millisecond) min avg max Origin 6.537 29.177 66.245 64 2.798 3.614 4.403 128 2.861 3.820 4.775 256 3.008 4.018 4.807 512 3.254 4.523 5.824 1024 3.079 5.335 7.747 2048 3.944 8.201 12.762 4096 4.158 11.057 19.985 Seems pretty consistent, a small dip at 2 VQ sizes. Ring size is a hint from device about a burst size it can tolerate. Based on benchmarks, set the weight to 2 * vq size. To evaluate this change, another tests were done using netperf(RR, TX) between two machines with Intel(R) Xeon(R) Gold 6133 CPU @ 2.50GHz, and vq size was tweaked through qemu. Results shown below does not show obvious changes. vq size=256 TCP_RR vq size=512 TCP_RR size/sessions/+thu%/+normalize% size/sessions/+thu%/+normalize% 1/ 1/ -7%/ -2% 1/ 1/ 0%/ -2% 1/ 4/ +1%/ 0% 1/ 4/ +1%/ 0% 1/ 8/ +1%/ -2% 1/ 8/ 0%/ +1% 64/ 1/ -6%/ 0% 64/ 1/ +7%/ +3% 64/ 4/ 0%/ +2% 64/ 4/ -1%/ +1% 64/ 8/ 0%/ 0% 64/ 8/ -1%/ -2% 256/ 1/ -3%/ -4% 256/ 1/ -4%/ -2% 256/ 4/ +3%/ +4% 256/ 4/ +1%/ +2% 256/ 8/ +2%/ 0% 256/ 8/ +1%/ -1% vq size=256 UDP_RR vq size=512 UDP_RR size/sessions/+thu%/+normalize% size/sessions/+thu%/+normalize% 1/ 1/ -5%/ +1% 1/ 1/ -3%/ -2% 1/ 4/ +4%/ +1% 1/ 4/ -2%/ +2% 1/ 8/ -1%/ -1% 1/ 8/ -1%/ 0% 64/ 1/ -2%/ -3% 64/ 1/ +1%/ +1% 64/ 4/ -5%/ -1% 64/ 4/ +2%/ 0% 64/ 8/ 0%/ -1% 64/ 8/ -2%/ +1% 256/ 1/ +7%/ +1% 256/ 1/ -7%/ 0% 256/ 4/ +1%/ +1% 256/ 4/ -3%/ -4% 256/ 8/ +2%/ +2% 256/ 8/ +1%/ +1% vq size=256 TCP_STREAM vq size=512 TCP_STREAM size/sessions/+thu%/+normalize% size/sessions/+thu%/+normalize% 64/ 1/ 0%/ -3% 64/ 1/ 0%/ 0% 64/ 4/ +3%/ -1% 64/ 4/ -2%/ +4% 64/ 8/ +9%/ -4% 64/ 8/ -1%/ +2% 256/ 1/ +1%/ -4% 256/ 1/ +1%/ +1% 256/ 4/ -1%/ -1% 256/ 4/ -3%/ 0% 256/ 8/ +7%/ +5% 256/ 8/ -3%/ 0% 512/ 1/ +1%/ 0% 512/ 1/ -1%/ -1% 512/ 4/ +1%/ -1% 512/ 4/ 0%/ 0% 512/ 8/ +7%/ -5% 512/ 8/ +6%/ -1% 1024/ 1/ 0%/ -1% 1024/ 1/ 0%/ +1% 1024/ 4/ +3%/ 0% 1024/ 4/ +1%/ 0% 1024/ 8/ +8%/ +5% 1024/ 8/ -1%/ 0% 2048/ 1/ +2%/ +2% 2048/ 1/ -1%/ 0% 2048/ 4/ +1%/ 0% 2048/ 4/ 0%/ -1% 2048/ 8/ -2%/ 0% 2048/ 8/ 5%/ -1% 4096/ 1/ -2%/ 0% 4096/ 1/ -2%/ 0% 4096/ 4/ +2%/ 0% 4096/ 4/ 0%/ 0% 4096/ 8/ +9%/ -2% 4096/ 8/ -5%/ -1% Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Haibin Zhang <haibinzhang@tencent.com> Signed-off-by: Yunfang Tai <yunfangtai@tencent.com> Signed-off-by: Lidong Chen <lidongchen@tencent.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-09net: thunderx: rework mac addresses list to u64 arrayVadim Lomovtsev2-24/+11
It is too expensive to pass u64 values via linked list, instead allocate array for them by overall number of mac addresses from netdev. This eventually removes multiple kmalloc() calls, aviod memory fragmentation and allow to put single null check on kmalloc return value in order to prevent a potential null pointer dereference. Addresses-Coverity-ID: 1467429 ("Dereference null return value") Fixes: 37c3347eb247 ("net: thunderx: add ndo_set_rx_mode callback implementation for VF") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Vadim Lomovtsev <Vadim.Lomovtsev@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-09dp83640: Ensure against premature access to PHY registers after resetEsben Haabendal1-0/+18
The datasheet specifies a 3uS pause after performing a software reset. The default implementation of genphy_soft_reset() does not provide this, so implement soft_reset with the needed pause. Signed-off-by: Esben Haabendal <eha@deif.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08devlink: convert occ_get op to separate registrationJiri Pirko4-83/+74
This resolves race during initialization where the resources with ops are registered before driver and the structures used by occ_get op is initialized. So keep occ_get callbacks registered only when all structs are initialized. The example flows, as it is in mlxsw: 1) driver load/asic probe: mlxsw_core -> mlxsw_sp_resources_register -> mlxsw_sp_kvdl_resources_register -> devlink_resource_register IDX mlxsw_spectrum -> mlxsw_sp_kvdl_init -> mlxsw_sp_kvdl_parts_init -> mlxsw_sp_kvdl_part_init -> devlink_resource_size_get IDX (to get the current setup size from devlink) -> devlink_resource_occ_get_register IDX (register current occupancy getter) 2) reload triggered by devlink command: -> mlxsw_devlink_core_bus_device_reload -> mlxsw_sp_fini -> mlxsw_sp_kvdl_fini -> devlink_resource_occ_get_unregister IDX (struct mlxsw_sp *mlxsw_sp is freed at this point, call to occ get which is using mlxsw_sp would cause use-after free) -> mlxsw_sp_init -> mlxsw_sp_kvdl_init -> mlxsw_sp_kvdl_parts_init -> mlxsw_sp_kvdl_part_init -> devlink_resource_size_get IDX (to get the current setup size from devlink) -> devlink_resource_occ_get_register IDX (register current occupancy getter) Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08net/fsl_pq_mdio: Allow explicit speficition of TBIPA addressEsben Haabendal1-16/+34
This introduces a simpler and generic method for for finding (and mapping) the TBIPA register. Instead of relying of complicated logic for finding the TBIPA register address based on the MDIO or MII register block base address, which even in some cases relies on undocumented shadow registers, a second "reg" entry for the mdio bus devicetree node specifies the TBIPA register. Backwards compatibility is kept, as the existing logic is applied when only a single "reg" mapping is specified. Signed-off-by: Esben Haabendal <eha@deif.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08ibmvnic: Do not reset CRQ for Mobility driver resetsNathan Fontenot1-23/+32
When resetting the ibmvnic driver after a partition migration occurs there is no requirement to do a reset of the main CRQ. The current driver code does the required re-enable of the main CRQ, then does a reset of the main CRQ later. What we should be doing for a driver reset after a migration is to re-enable the main CRQ, release all the sub-CRQs, and then allocate new sub-CRQs after capability negotiation. This patch updates the handling of mobility resets to do the proper work and not reset the main CRQ. To do this the initialization/reset of the main CRQ had to be moved out of the ibmvnic_init routine and in to the ibmvnic_probe and do_reset routines. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08ibmvnic: Fix failover case for non-redundant configurationThomas Falcon2-8/+30
There is a failover case for a non-redundant pseries VNIC configuration that was not being handled properly. The current implementation assumes that the driver will always have a redandant device to communicate with following a failover notification. There are cases, however, when a non-redundant configuration can receive a failover request. If that happens, the driver should wait until it receives a signal that the device is ready for operation. The driver is agnostic of its backing hardware configuration, so this fix necessarily affects all device failover management. The driver needs to wait until it receives a signal that the device is ready for resetting. A flag is introduced to track this intermediary state where the driver is waiting for an active device. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08ibmvnic: Fix reset scheduler error handlingThomas Falcon1-10/+29
In some cases, if the driver is waiting for a reset following a device parameter change, failure to schedule a reset can result in a hang since a completion signal is never sent. If the device configuration is being altered by a tool such as ethtool or ifconfig, it could cause the console to hang if the reset request does not get scheduled. Add some additional error handling code to exit the wait_for_completion if there is one in progress. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08ibmvnic: Zero used TX descriptor counter on resetThomas Falcon1-0/+1
The counter that tracks used TX descriptors pending completion needs to be zeroed as part of a device reset. This change fixes a bug causing transmit queues to be stopped unnecessarily and in some cases a transmit queue stall and timeout reset. If the counter is not reset, the remaining descriptors will not be "removed", effectively reducing queue capacity. If the queue is over half full, it will cause the queue to stall if stopped. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08ibmvnic: Fix DMA mapping mistakesThomas Falcon1-8/+6
Fix some mistakes caught by the DMA debugger. The first change fixes a unnecessary unmap that should have been removed in an earlier update. The next hunk fixes another bad unmap by zeroing the bit checked to determine that an unmap is needed. The final change fixes some buffers that are unmapped with the wrong direction specified. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-08Merge branch 'next-tpm' of ↵Linus Torvalds5-120/+249
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull TPM updates from James Morris: "This release contains only bug fixes. There are no new major features added" * 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: tpm: fix intermittent failure with self tests tpm: add retry logic tpm: self test failure should not cause suspend to fail tpm2: add longer timeouts for creation commands. tpm_crb: use __le64 annotated variable for response buffer address tpm: fix buffer type in tpm_transmit_cmd tpm: tpm-interface: fix tpm_transmit/_cmd kdoc tpm: cmd_ready command can be issued only after granting locality
2018-04-07treewide: fix up files incorrectly marked executableLinus Torvalds2-0/+0
Joe Perches noted that we have a few source files that for some inexplicable reason (read: I'm too lazy to even go look at the history) are marked executable: drivers/gpu/drm/amd/amdgpu/vce_v4_0.c drivers/net/ethernet/cadence/macb_ptp.c A simple git command line to show executable C/asm/header files is this: git ls-files -s '*.[chsS]' | grep '^100755' and then you can fix them up with scripting by just feeding that output into: | cut -f2 | xargs chmod -x and commit it. Which is exactly what this commit does. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-07Merge branch 'i2c/for-4.17' of ↵Linus Torvalds20-760/+1880
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: -I2C core now reports proper OF style module alias. I'd like to repeat the note from the commit msg here (Thanks, Javier!): NOTE: This patch may break out-of-tree drivers that were relying on this behavior, and only had an I2C device ID table even when the device was registered via OF. There are no remaining drivers in mainline that do this, but out-of-tree drivers have to be fixed and define a proper OF device ID table to have module auto-loading working. - new driver for the SynQuacer I2C controller - major refactoring of the QUP driver - the piix4 driver now uses request_muxed_region which should fix a long standing resource conflict with the sp5100_tco watchdog - a bunch of small core & driver improvements * 'i2c/for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (53 commits) i2c: add support for Socionext SynQuacer I2C controller dt-bindings: i2c: add binding for Socionext SynQuacer I2C i2c: Update i2c_trace_msg static key to modern api i2c: fix parameter of trace_i2c_result i2c: imx: avoid taking clk_prepare mutex in PM callbacks i2c: imx: use clk notifier for rate changes i2c: make i2c_check_addr_validity() static i2c: rcar: fix mask value of prohibited bit dt-bindings: i2c: document R8A77965 bindings i2c: pca-platform: drop gpio from platform data i2c: pca-platform: use device_property_read_u32 i2c: pca-platform: unconditionally use devm_gpiod_get_optional sh: sh7785lcr: add GPIO lookup table for i2c controller reset i2c: qup: reorganization of driver code to remove polling for qup v2 i2c: qup: reorganization of driver code to remove polling for qup v1 i2c: qup: send NACK for last read sub transfers i2c: qup: fix buffer overflow for multiple msg of maximum xfer len i2c: qup: change completion timeout according to transfer length i2c: qup: use the complete transfer length to choose DMA mode i2c: qup: proper error handling for i2c error in BAM mode ...
2018-04-07Merge tag 'powerpc-4.17-1' of ↵Linus Torvalds13-112/+188
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Notable changes: - Support for 4PB user address space on 64-bit, opt-in via mmap(). - Removal of POWER4 support, which was accidentally broken in 2016 and no one noticed, and blocked use of some modern instructions. - Workarounds so that the hypervisor can enable Transactional Memory on Power9. - A series to disable the DAWR (Data Address Watchpoint Register) on Power9. - More information displayed in the meltdown/spectre_v1/v2 sysfs files. - A vpermxor (Power8 Altivec) implementation for the raid6 Q Syndrome. - A big series to make the allocation of our pacas (per cpu area), kernel page tables, and per-cpu stacks NUMA aware when using the Radix MMU on Power9. And as usual many fixes, reworks and cleanups. Thanks to: Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Aneesh Kumar K.V, Anshuman Khandual, Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe Lombard, Cyril Bur, Daniel Axtens, Dave Young, Finn Thain, Frederic Barrat, Gustavo Romero, Horia Geantă, Jonathan Neuschäfer, Kees Cook, Larry Finger, Laurent Dufour, Laurent Vivier, Logan Gunthorpe, Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus Elfring, Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de Oliveira, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher Boessenkool, Simon Guo, Simon Horman, Stewart Smith, Sukadev Bhattiprolu, Suraj Jitindar Singh, Thiago Jung Bauermann, Vaibhav Jain, Vaidyanathan Srinivasan, Vasant Hegde, Wei Yongjun" * tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (207 commits) powerpc/64s/idle: Fix restore of AMOR on POWER9 after deep sleep powerpc/64s: Fix POWER9 DD2.2 and above in cputable features powerpc/64s: Fix pkey support in dt_cpu_ftrs, add CPU_FTR_PKEY bit powerpc/64s: Fix dt_cpu_ftrs to have restore_cpu clear unwanted LPCR bits Revert "powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead" powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo} powerpc: io.h: move iomap.h include so that it can use readq/writeq defs cxl: Fix possible deadlock when processing page faults from cxllib powerpc/hw_breakpoint: Only disable hw breakpoint if cpu supports it powerpc/mm/radix: Update command line parsing for disable_radix powerpc/mm/radix: Parse disable_radix commandline correctly. powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlb powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix powerpc/mm/keys: Update documentation and remove unnecessary check powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop() powerpc/powernv: Always stop secondaries before reboot/shutdown powerpc: hard disable irqs in smp_send_stop loop powerpc: use NMI IPI for smp_send_stop powerpc/powernv: Fix SMT4 forcing idle code ...
2018-04-07Merge branch 'next-general' of ↵Linus Torvalds1-8/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull general security layer updates from James Morris: - Convert security hooks from list to hlist, a nice cleanup, saving about 50% of space, from Sargun Dhillon. - Only pass the cred, not the secid, to kill_pid_info_as_cred and security_task_kill (as the secid can be determined from the cred), from Stephen Smalley. - Close a potential race in kernel_read_file(), by making the file unwritable before calling the LSM check (vs after), from Kees Cook. * 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: security: convert security hooks to use hlist exec: Set file unwritable before LSM check usb, signal, security: only pass the cred, not the secid, to kill_pid_info_as_cred and security_task_kill
2018-04-07Merge tag 'vfio-v4.17-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds4-41/+348
Pull VFIO updates from Alex Williamson: - Adopt iommu_unmap_fast() interface to type1 backend (Suravee Suthikulpanit) - mdev sample driver fixup (Shunyong Yang) - More efficient PFN mapping handling in type1 backend (Jason Cai) - VFIO device ioeventfd interface (Alex Williamson) - Tag new vfio-platform sub-maintainer (Alex Williamson) * tag 'vfio-v4.17-rc1' of git://github.com/awilliam/linux-vfio: MAINTAINERS: vfio/platform: Update sub-maintainer vfio/pci: Add ioeventfd support vfio/pci: Use endian neutral helpers vfio/pci: Pull BAR mapping setup from read-write path vfio/type1: Improve memory pinning process for raw PFN mapping vfio-mdev/samples: change RDI interrupt condition vfio/type1: Adopt fast IOTLB flush interface when unmap IOVAs
2018-04-07Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds4-64/+244
Pull fw_cfg, vhost updates from Michael Tsirkin: "This cleans up the qemu fw cfg device driver. On top of this, vmcore is dumped there on crash to help debugging with kASLR enabled. Also included are some fixes in vhost" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost: add vsock compat ioctl vhost: fix vhost ioctl signature to build with clang fw_cfg: write vmcoreinfo details crash: export paddr_vmcoreinfo_note() fw_cfg: add DMA register fw_cfg: add a public uapi header fw_cfg: handle fw_cfg_read_blob() error fw_cfg: remove inline from fw_cfg_read_blob() fw_cfg: fix sparse warnings around FW_CFG_FILE_DIR read fw_cfg: fix sparse warning reading FW_CFG_ID fw_cfg: fix sparse warnings with fw_cfg_file fw_cfg: fix sparse warnings in fw_cfg_sel_endianness() ptr_ring: fix build
2018-04-07Merge tag 'pci-v4.17-changes' of ↵Linus Torvalds91-1978/+2899
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - move pci_uevent_ers() out of pci.h (Michael Ellerman) - skip ASPM common clock warning if BIOS already configured it (Sinan Kaya) - fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva) - remove last user of pci_get_bus_and_slot() and the function itself (Sinan Kaya) - add decoding for 16 GT/s link speed (Jay Fang) - add interfaces to get max link speed and width (Tal Gilboa) - add pcie_bandwidth_capable() to compute max supported link bandwidth (Tal Gilboa) - add pcie_bandwidth_available() to compute bandwidth available to device (Tal Gilboa) - add pcie_print_link_status() to log link speed and whether it's limited (Tal Gilboa) - use PCI core interfaces to report when device performance may be limited by its slot instead of doing it in each driver (Tal Gilboa) - fix possible cpqphp NULL pointer dereference (Shawn Lin) - rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI hotplug (Mika Westerberg) - add support for PCI I/O port space that's neither directly accessible via CPU in/out instructions nor directly mapped into CPU physical memory space. This is fairly intrusive and includes minor changes to interfaces used for I/O space on most platforms (Zhichang Yuan, John Garry) - add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan, John Garry) - use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas) - remove possible NULL pointer dereference in of_pci_bus_find_domain_nr() (Shawn Lin) - report quirk timings with dev_info (Bjorn Helgaas) - report quirks that take longer than 10ms (Bjorn Helgaas) - add and use Altera Vendor ID (Johannes Thumshirn) - tidy Makefiles and comments (Bjorn Helgaas) - don't set up INTx if MSI or MSI-X is enabled to align cris, frv, ia64, and mn10300 with x86 (Bjorn Helgaas) - move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick Lawler) - merge pcieport_if.h into portdrv.h (Bjorn Helgaas) - move workaround for BIOS PME issue from portdrv to PCI core (Bjorn Helgaas) - completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas) - remove portdrv link order dependency (Bjorn Helgaas) - remove support for unused VC portdrv service (Bjorn Helgaas) - simplify portdrv feature permission checking (Bjorn Helgaas) - remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn Helgaas) - remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas) - use cached AER capability offset (Frederick Lawler) - don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg) - rename pcie-dpc.c to dpc.c (Bjorn Helgaas) - use generic pci_mmap_resource_range() instead of powerpc and xtensa arch-specific versions (David Woodhouse) - support arbitrary PCI host bridge offsets on sparc (Yinghai Lu) - remove System and Video ROM reservations on sparc (Bjorn Helgaas) - probe for device reset support during enumeration instead of runtime (Bjorn Helgaas) - add ACS quirk for Ampere (née APM) root ports (Feng Kan) - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas Vincent-Cross) - protect device restore with device lock (Sinan Kaya) - handle failure of FLR gracefully (Sinan Kaya) - handle CRS (config retry status) after device resets (Sinan Kaya) - skip various config reads for SR-IOV VFs as an optimization (KarimAllah Ahmed) - consolidate VPD code in vpd.c (Bjorn Helgaas) - add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) - add DT support for R-Car r8a7743 (Biju Das) - fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host bridge driver that causes a general protection fault (Dexuan Cui) - fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV (Dexuan Cui) - fix Hyper-V host bridge hang when ejecting a VF before setting up MSI (Dexuan Cui) - make several structures static (Fengguang Wu) - increase number of MSI IRQs supported by Synopsys DesignWare bridges from 32 to 256 (Gustavo Pimentel) - implemented multiplexed IRQ domain API and remove obsolete MSI IRQ API from DesignWare drivers (Gustavo Pimentel) - add Tegra power management support (Manikanta Maddireddy) - add Tegra loadable module support (Manikanta Maddireddy) - handle 64-bit BARs correctly in endpoint support (Niklas Cassel) - support optional regulator for HiSilicon STB (Shawn Guo) - use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla) - support power supplies for Qualcomm msm8996 (Srinivas Kandagatla) * tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits) MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver HISI LPC: Add ACPI support ACPI / scan: Do not enumerate Indirect IO host children ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings of: Add missing I/O range exception for indirect-IO devices PCI: Apply the new generic I/O management on PCI IO hosts PCI: Add fwnode handler as input param of pci_register_io_range() PCI: Remove __weak tag from pci_register_io_range() MAINTAINERS: Add missing /drivers/pci/cadence directory entry fm10k: Report PCIe link properties with pcie_print_link_status() net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth net/mlx5: Report PCIe link properties with pcie_print_link_status() net/mlx4_core: Report PCIe link properties with pcie_print_link_status() PCI: Add pcie_print_link_status() to log link speed and whether it's limited PCI: Add pcie_bandwidth_available() to compute bandwidth available to device misc: pci_endpoint_test: Handle 64-bit BARs properly PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar ...
2018-04-07Merge tag 'for-linus-unmerged' of ↵Linus Torvalds133-2484/+5199
git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma updates from Jason Gunthorpe: "Doug and I are at a conference next week so if another PR is sent I expect it to only be bug fixes. Parav noted yesterday that there are some fringe case behavior changes in his work that he would like to fix, and I see that Intel has a number of rc looking patches for HFI1 they posted yesterday. Parav is again the biggest contributor by patch count with his ongoing work to enable container support in the RDMA stack, followed by Leon doing syzkaller inspired cleanups, though most of the actual fixing went to RC. There is one uncomfortable series here fixing the user ABI to actually work as intended in 32 bit mode. There are lots of notes in the commit messages, but the basic summary is we don't think there is an actual 32 bit kernel user of drivers/infiniband for several good reasons. However we are seeing people want to use a 32 bit user space with 64 bit kernel, which didn't completely work today. So in fixing it we required a 32 bit rxe user to upgrade their userspace. rxe users are still already quite rare and we think a 32 bit one is non-existing. - Fix RDMA uapi headers to actually compile in userspace and be more complete - Three shared with netdev pull requests from Mellanox: * 7 patches, mostly to net with 1 IB related one at the back). This series addresses an IRQ performance issue (patch 1), cleanups related to the fix for the IRQ performance problem (patches 2-6), and then extends the fragmented completion queue support that already exists in the net side of the driver to the ib side of the driver (patch 7). * Mostly IB, with 5 patches to net that are needed to support the remaining 10 patches to the IB subsystem. This series extends the current 'representor' framework when the mlx5 driver is in switchdev mode from being a netdev only construct to being a netdev/IB dev construct. The IB dev is limited to raw Eth queue pairs only, but by having an IB dev of this type attached to the representor for a switchdev port, it enables DPDK to work on the switchdev device. * All net related, but needed as infrastructure for the rdma driver - Updates for the hns, i40iw, bnxt_re, cxgb3, cxgb4, hns drivers - SRP performance updates - IB uverbs write path cleanup patch series from Leon - Add RDMA_CM support to ib_srpt. This is disabled by default. Users need to set the port for ib_srpt to listen on in configfs in order for it to be enabled (/sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port) - TSO and Scatter FCS support in mlx4 - Refactor of modify_qp routine to resolve problems seen while working on new code that is forthcoming - More refactoring and updates of RDMA CM for containers support from Parav - mlx5 'fine grained packet pacing', 'ipsec offload' and 'device memory' user API features - Infrastructure updates for the new IOCTL interface, based on increased usage - ABI compatibility bug fixes to fully support 32 bit userspace on 64 bit kernel as was originally intended. See the commit messages for extensive details - Syzkaller bugs and code cleanups motivated by them" * tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (199 commits) IB/rxe: Fix for oops in rxe_register_device on ppc64le arch IB/mlx5: Device memory mr registration support net/mlx5: Mkey creation command adjustments IB/mlx5: Device memory support in mlx5_ib net/mlx5: Query device memory capabilities IB/uverbs: Add device memory registration ioctl support IB/uverbs: Add alloc/free dm uverbs ioctl support IB/uverbs: Add device memory capabilities reporting IB/uverbs: Expose device memory capabilities to user RDMA/qedr: Fix wmb usage in qedr IB/rxe: Removed GID add/del dummy routines RDMA/qedr: Zero stack memory before copying to user space IB/mlx5: Add ability to hash by IPSEC_SPI when creating a TIR IB/mlx5: Add information for querying IPsec capabilities IB/mlx5: Add IPsec support for egress and ingress {net,IB}/mlx5: Add ipsec helper IB/mlx5: Add modify_flow_action_esp verb IB/mlx5: Add implementation for create and destroy action_xfrm IB/uverbs: Introduce ESP steering match filter IB/uverbs: Add modify ESP flow_action ...
2018-04-07Merge tag 'mailbox-v4.17' of ↵Linus Torvalds4-3/+324
git://git.linaro.org/landing-teams/working/fujitsu/integration Pull mailbox updates from Jassi Brar: - New Hi3660 mailbox driver - Fix TEGRA Kconfig warning - Broadcom: use dma_pool_zalloc instead of dma_pool_alloc+memset * tag 'mailbox-v4.17' of git://git.linaro.org/landing-teams/working/fujitsu/integration: mailbox: Add support for Hi3660 mailbox dt-bindings: mailbox: Introduce Hi3660 controller binding mailbox: tegra: relax TEGRA_HSP_MBOX Kconfig dependencies maillbox: bcm-flexrm-mailbox: Use dma_pool_zalloc()
2018-04-07Merge branch 'akpm' (patches from Andrew)Linus Torvalds13-48/+60
Merge updates from Andrew Morton: - a few misc things - ocfs2 updates - the v9fs maintainers have been missing for a long time. I've taken over v9fs patch slinging. - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (116 commits) mm,oom_reaper: check for MMF_OOM_SKIP before complaining mm/ksm: fix interaction with THP mm/memblock.c: cast constant ULLONG_MAX to phys_addr_t headers: untangle kmemleak.h from mm.h include/linux/mmdebug.h: make VM_WARN* non-rvals mm/page_isolation.c: make start_isolate_page_range() fail if already isolated mm: change return type to vm_fault_t mm, oom: remove 3% bonus for CAP_SYS_ADMIN processes mm, page_alloc: wakeup kcompactd even if kswapd cannot free more memory kernel/fork.c: detect early free of a live mm mm: make counting of list_lru_one::nr_items lockless mm/swap_state.c: make bool enable_vma_readahead and swap_vma_readahead() static block_invalidatepage(): only release page if the full page was invalidated mm: kernel-doc: add missing parameter descriptions mm/swap.c: remove @cold parameter description for release_pages() mm/nommu: remove description of alloc_vm_area zram: drop max_zpage_size and use zs_huge_class_size() zsmalloc: introduce zs_huge_class_size() mm: fix races between swapoff and flush dcache fs/direct-io.c: minor cleanups in do_blockdev_direct_IO ...
2018-04-06Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtdLinus Torvalds153-4239/+2840
Pull MTD updates from Boris Brezillon: "MTD Core: - Remove support for asynchronous erase (not implemented by any of the existing drivers anyway) - Remove Cyrille from the list of SPI NOR and MTD maintainers - Fix kernel doc headers - Allow users to define the partitions parsers they want to test through a DT property (compatible of the partitions subnode) - Remove the bfin-async-flash driver (the only architecture using it has been removed) - Fix pagetest test - Add extra checks in mtd_erase() - Simplify the MTD partition creation logic and get rid of mtd_add_device_partitions() MTD Drivers: - Add endianness information to the physmap DT binding - Add Eon EN29LV400A IDs to JEDEC probe logic - Use %*ph where appropriate SPI NOR Drivers: - Make fsl-quaspi assign different names to MTD devices connected to the same QSPI controller - Remove an unneeded driver.bus assigned in the fsl-qspi driver NAND Core: - Prepare arrival of the SPI NAND subsystem by implementing a generic (interface-agnostic) layer to ease manipulation of NAND devices - Move onenand code base to the drivers/mtd/nand/ dir - Rework timing mode selection - Provide a generic way for NAND chip drivers to flag a specific GET/SET FEATURE operation as supported/unsupported - Stop embedding ONFI/JEDEC param page in nand_chip NAND Drivers: - Rework/cleanup of the mxc driver - Various cleanups in the vf610 driver - Migrate the fsmc and vf610 to ->exec_op() - Get rid of the pxa driver (replaced by marvell_nand) - Support ->setup_data_interface() in the GPMI driver - Fix probe error path in several drivers - Remove support for unused hw_syndrome mode in sunxi_nand - Various minor improvements" * tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd: (89 commits) dt-bindings: fsl-quadspi: Add the example of two SPI NOR mtd: fsl-quadspi: Distinguish the mtd device names mtd: nand: Fix some function description mismatches in core.c mtd: fsl-quadspi: Remove unneeded driver.bus assignment mtd: rawnand: marvell: Rename ->ecc_clk into ->core_clk mtd: rawnand: s3c2410: enhance the probe function error path mtd: rawnand: tango: fix probe function error path mtd: rawnand: sh_flctl: fix the probe function error path mtd: rawnand: omap2: fix the probe function error path mtd: rawnand: mxc: fix probe function error path mtd: rawnand: denali: fix probe function error path mtd: rawnand: davinci: fix probe function error path mtd: rawnand: cafe: fix probe function error path mtd: rawnand: brcmnand: fix probe function error path mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode mtd: rawnand: marvell: Fix clock resource by adding a register clock mtd: ftl: Use DIV_ROUND_UP() mtd: Fix some function description mismatches in mtdcore.c mtd: physmap_of: update struct map_info's swap as per map requirement dt-bindings: mtd-physmap: Add endianness supports ...
2018-04-06Merge tag 'for-4.17/dm-changes' of ↵Linus Torvalds24-451/+441
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - DM core passthrough ioctl fix to retain reference to DM table, and that table's block devices, while issuing the ioctl to one of those block devices. - DM core passthrough ioctl fix to _not_ override the fmode_t used to issue the ioctl. Overriding by using the fmode_t that the block device was originally open with during DM table load is a liability. - Add DM core support for secure erase forwarding and update the DM linear and DM striped targets to support them. - A DM core 4.16 stable fix to allow abnormal IO (e.g. discard, write same, write zeroes) for targets that make use of the non-splitting IO variant (as is done for multipath or thinp when layered directly on NVMe). - Allow DM targets to return a payload in response to a DM message that they are sent. This is useful for DM targets that would like to provide statistics data in response to DM messages. - Update DM bufio to support non-power-of-2 block sizes. Numerous other related changes prepare the DM bufio code for this support. - Fix DM crypt to use a bounded amount of memory across the entire system. This is to avoid OOM that can otherwise occur in response to certain pathological IO workloads (e.g. discarding a large DM crypt device). - Add a 'check_at_most_once' feature to the DM verity target to allow verity to be used on mobile devices that have very limited resources. - Fix the DM integrity target to fail early if a keyed algorithm (e.g. HMAC) is to be used but the key isn't set. - Add non-power-of-2 support to the DM unstripe target. - Eliminate the use of a Variable Length Array in the DM stripe target. - Update the DM log-writes target to record metadata (REQ_META flag). - DM raid fixes for its nosync status and some variable range issues. * tag 'for-4.17/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (28 commits) dm: remove fmode_t argument from .prepare_ioctl hook dm: hold DM table for duration of ioctl rather than use blkdev_get dm raid: fix parse_raid_params() variable range issue dm verity: make verity_for_io_block static dm verity: add 'check_at_most_once' option to only validate hashes once dm bufio: don't embed a bio in the dm_buffer structure dm bufio: support non-power-of-two block sizes dm bufio: use slab cache for dm_buffer structure allocations dm bufio: reorder fields in dm_buffer structure dm bufio: relax alignment constraint on slab cache dm bufio: remove code that merges slab caches dm bufio: get rid of slab cache name allocations dm bufio: move dm-bufio.h to include/linux/ dm bufio: delete outdated comment dm: add support for secure erase forwarding dm: backfill abnormal IO support to non-splitting IO submission dm raid: fix nosync status dm mpath: use DM_MAPIO_SUBMITTED instead of magic number 0 in process_queued_bios() dm stripe: get rid of a Variable Length Array (VLA) dm log writes: record metadata flag for better flags record ...
2018-04-06Merge branch 'work.misc' of ↵Linus Torvalds3-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "Assorted stuff, including Christoph's I_DIRTY patches" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: move I_DIRTY_INODE to fs.h ubifs: fix bogus __mark_inode_dirty(I_DIRTY_SYNC | I_DIRTY_DATASYNC) call ntfs: fix bogus __mark_inode_dirty(I_DIRTY_SYNC | I_DIRTY_DATASYNC) call gfs2: fix bogus __mark_inode_dirty(I_DIRTY_SYNC | I_DIRTY_DATASYNC) calls fs: fold open_check_o_direct into do_dentry_open vfs: Replace stray non-ASCII homoglyph characters with their ASCII equivalents vfs: make sure struct filename->iname is word-aligned get rid of pointless includes of fs_struct.h [poll] annotate SAA6588_CMD_POLL users
2018-04-06net: phy: marvell: Enable interrupt function on LED2 pinEsben Haabendal1-2/+18
The LED2[2]/INTn pin on Marvell 88E1318S as well as 88E1510/12/14/18 needs to be configured to be usable as interrupt not only when WOL is enabled, but whenever we rely on interrupts from the PHY. Signed-off-by: Esben Haabendal <eha@deif.com> Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06ARM: sa1100/simpad: switch simpad CF to use gpiod APIsRussell King1-9/+3
Switch simpad's CF implementation to use the gpiod APIs. The inverted detection is handled using gpiolib's native inversion abilities. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-04-06ARM: sa1100/shannon: convert to generic CF socketsRussell King4-109/+0
Convert shannon to use the generic CF socket support. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-04-06ARM: sa1100/nanoengine: convert to generic CF socketsRussell King4-138/+0
Convert nanoengine to use the generic CF socket support. Makefile fix from Arnd Bergmann <arnd@arndb.de>. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-04-06ice: Bug fixes in ethtool codeAnirudh Venkataramanan1-2/+2
1) Return correct size from ice_get_regs_len. 2) Fix incorrect use of ARRAY_SIZE in ice_get_regs. Fixes: fcea6f3da546 (ice: Add stats and ethtool support) Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-06ice: Fix error return code in ice_init_hw()Wei Yongjun1-1/+3
Fix to return error code ICE_ERR_NO_MEMORY from the alloc error handling case instead of 0, as done elsewhere in this function. Fixes: dc49c7723676 ("ice: Get MAC/PHY/link info and scheduler topology") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-04-06headers: untangle kmemleak.h from mm.hRandy Dunlap8-6/+3
Currently <linux/slab.h> #includes <linux/kmemleak.h> for no obvious reason. It looks like it's only a convenience, so remove kmemleak.h from slab.h and add <linux/kmemleak.h> to any users of kmemleak_* that don't already #include it. Also remove <linux/kmemleak.h> from source files that do not use it. This is tested on i386 allmodconfig and x86_64 allmodconfig. It would be good to run it through the 0day bot for other $ARCHes. I have neither the horsepower nor the storage space for the other $ARCHes. Update: This patch has been extensively build-tested by both the 0day bot & kisskb/ozlabs build farms. Both of them reported 2 build failures for which patches are included here (in v2). [ slab.h is the second most used header file after module.h; kernel.h is right there with slab.h. There could be some minor error in the counting due to some #includes having comments after them and I didn't combine all of those. ] [akpm@linux-foundation.org: security/keys/big_key.c needs vmalloc.h, per sfr] Link: http://lkml.kernel.org/r/e4309f98-3749-93e1-4bb7-d9501a39d015@infradead.org Link: http://kisskb.ellerman.id.au/kisskb/head/13396/ Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> Reported-by: Michael Ellerman <mpe@ellerman.id.au> [2 build failures] Reported-by: Fengguang Wu <fengguang.wu@intel.com> [2 build failures] Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: Luis R. Rodriguez <mcgrof@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Mimi Zohar <zohar@linux.vnet.ibm.com> Cc: John Johansen <john.johansen@canonical.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06zram: drop max_zpage_size and use zs_huge_class_size()Sergey Senozhatsky2-17/+8
Remove ZRAM's enforced "huge object" value and use zsmalloc huge-class watermark instead, which makes more sense. TEST - I used a 1G zram device, LZO compression back-end, original data set size was 444MB. Looking at zsmalloc classes stats the test ended up to be pretty fair. BASE ZRAM/ZSMALLOC ===================== zram mm_stat 498978816 191482495 199831552 0 199831552 15634 0 zsmalloc classes class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable ... 151 2448 0 0 1240 1240 744 3 0 168 2720 0 0 4200 4200 2800 2 0 190 3072 0 0 10100 10100 7575 3 0 202 3264 0 0 380 380 304 4 0 254 4096 0 0 10620 10620 10620 1 0 Total 7 46 106982 106187 48787 0 PATCHED ZRAM/ZSMALLOC ===================== zram mm_stat 498978816 182579184 194248704 0 194248704 15628 0 zsmalloc classes class size almost_full almost_empty obj_allocated obj_used pages_used pages_per_zspage freeable ... 151 2448 0 0 1240 1240 744 3 0 168 2720 0 0 4200 4200 2800 2 0 190 3072 0 0 10100 10100 7575 3 0 202 3264 0 0 7180 7180 5744 4 0 254 4096 0 0 3820 3820 3820 1 0 Total 8 45 106959 106193 47424 0 As we can see, we reduced the number of objects stored in class-4096, because a huge number of objects which we previously forcibly stored in class-4096 now stored in non-huge class-3264. This results in lower memory consumption: - zsmalloc now uses 47424 physical pages, which is less than 48787 pages zsmalloc used before. - objects that we store in class-3264 share zspages. That's why overall the number of pages that both class-4096 and class-3264 consumed went down from 10924 to 9564. [sergey.senozhatsky.work@gmail.com: add pool param to zs_huge_class_size()] Link: http://lkml.kernel.org/r/20180314081833.1096-3-sergey.senozhatsky@gmail.com Link: http://lkml.kernel.org/r/20180306070639.7389-3-sergey.senozhatsky@gmail.com Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06device-dax: implement ->pagesize() for smaps to report MMUPageSizeDan Williams1-0/+10
Given that device-dax is making similar page mapping size guarantees as hugetlbfs, emit the size in smaps and any other kernel path that requests the mapping size of a vma. Link: http://lkml.kernel.org/r/151996255287.27922.18397777516059080245.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reported-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06mm/memory_hotplug: optimize memory hotplugPavel Tatashin1-0/+2
During memory hotplugging we traverse struct pages three times: 1. memset(0) in sparse_add_one_section() 2. loop in __add_section() to set do: set_page_node(page, nid); and SetPageReserved(page); 3. loop in memmap_init_zone() to call __init_single_pfn() This patch removes the first two loops, and leaves only loop 3. All struct pages are initialized in one place, the same as it is done during boot. The benefits: - We improve memory hotplug performance because we are not evicting the cache several times and also reduce loop branching overhead. - Remove condition from hotpath in __init_single_pfn(), that was added in order to fix the problem that was reported by Bharata in the above email thread, thus also improve performance during normal boot. - Make memory hotplug more similar to the boot memory initialization path because we zero and initialize struct pages only in one function. - Simplifies memory hotplug struct page initialization code, and thus enables future improvements, such as multi-threading the initialization of struct pages in order to improve hotplug performance even further on larger machines. [pasha.tatashin@oracle.com: v5] Link: http://lkml.kernel.org/r/20180228030308.1116-7-pasha.tatashin@oracle.com Link: http://lkml.kernel.org/r/20180215165920.8570-7-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Baoquan He <bhe@redhat.com> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06mm/memory_hotplug: don't read nid from struct page during hotplugPavel Tatashin2-9/+17
During memory hotplugging the probe routine will leave struct pages uninitialized, the same as it is currently done during boot. Therefore, we do not want to access the inside of struct pages before __init_single_page() is called during onlining. Because during hotplug we know that pages in one memory block belong to the same numa node, we can skip the checking. We should keep checking for the boot case. [pasha.tatashin@oracle.com: s/register_new_memory()/hotplug_memory_register()] Link: http://lkml.kernel.org/r/20180228030308.1116-6-pasha.tatashin@oracle.com Link: http://lkml.kernel.org/r/20180215165920.8570-6-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Baoquan He <bhe@redhat.com> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06mm/memory_hotplug: optimize probe routinePavel Tatashin1-16/+20
When memory is hotplugged pages_correctly_reserved() is called to verify that the added memory is present, this routine traverses through every struct page and verifies that PageReserved() is set. This is a slow operation especially if a large amount of memory is added. Instead of checking every page, it is enough to simply check that the section is present, has mapping (struct page array is allocated), and the mapping is online. In addition, we should not excpect that probe routine sets flags in struct page, as the struct pages have not yet been initialized. The initialization should be done in __init_single_page(), the same as during boot. Link: http://lkml.kernel.org/r/20180215165920.8570-5-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Baoquan He <bhe@redhat.com> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-06Merge tag 'armsoc-drivers' of ↵Linus Torvalds60-2174/+6176
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The main addition this time around is the new ARM "SCMI" framework, which is the latest in a series of standards coming from ARM to do power management in a platform independent way. This has been through many review cycles, and it relies on a rather interesting way of using the mailbox subsystem, but in the end I agreed that Sudeep's version was the best we could do after all. Other changes include: - the ARM CCN driver is moved out of drivers/bus into drivers/perf, which makes more sense. Similarly, the performance monitoring portion of the CCI driver are moved the same way and cleaned up a little more. - a series of updates to the SCPI framework - support for the Mediatek mt7623a SoC in drivers/soc - support for additional NVIDIA Tegra hardware in drivers/soc - a new reset driver for Socionext Uniphier - lesser bug fixes in drivers/soc, drivers/tee, drivers/memory, and drivers/firmware and drivers/reset across platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits) reset: uniphier: add ethernet reset control support for PXs3 reset: stm32mp1: Enable stm32mp1 reset driver dt-bindings: reset: add STM32MP1 resets reset: uniphier: add Pro4/Pro5/PXs2 audio systems reset control reset: imx7: add 'depends on HAS_IOMEM' to fix unmet dependency reset: modify the way reset lookup works for board files reset: add support for non-DT systems clk: scmi: use devm_of_clk_add_hw_provider() API and drop scmi_clocks_remove firmware: arm_scmi: prevent accessing rate_discrete uninitialized hwmon: (scmi) return -EINVAL when sensor information is unavailable amlogic: meson-gx-socinfo: Update soc ids soc/tegra: pmc: Use the new reset APIs to manage reset controllers soc: mediatek: update power domain data of MT2712 dt-bindings: soc: update MT2712 power dt-bindings cpufreq: scmi: add thermal dependency soc: mediatek: fix the mistaken pointer accessed when subdomains are added soc: mediatek: add SCPSYS power domain driver for MediaTek MT7623A SoC soc: mediatek: avoid hardcoded value with bus_prot_mask dt-bindings: soc: add header files required for MT7623A SCPSYS dt-binding dt-bindings: soc: add SCPSYS binding for MT7623 and MT7623A SoC ...
2018-04-06Merge tag 'armsoc-soc' of ↵Linus Torvalds23-2207/+2107
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "This release brings up a new platform based on the old ARM9 core: the Nuvoton NPCM is used as a baseboard management controller, competing with the better known ASpeed AST2xx series. Another important change is the addition of ARMv7-A based chips in mach-stm32. The older parts in this platform are ARMv7-M based microcontrollers, now they are expanding to general-purpose workloads. The other changes are the usual defconfig updates to enable additional drivers, lesser bugfixes. The largest updates as often are the ongoing OMAP cleanups, but we also have a number of changes for the older PXA and davinci platforms this time. For the Renesas shmobile/r-car platform, some new infrastructure is needed to make the watchdog work correctly. Supporting Multiprocessing on Allwinner A80 required a significant amount of new code, but is not doing anything unexpected" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (179 commits) arm: npcm: modify configuration for the NPCM7xx BMC. MAINTAINERS: update entry for ARM/berlin ARM: omap2: fix am43xx build without L2X0 ARM: davinci: da8xx: simplify CFGCHIP regmap_config ARM: davinci: da8xx: fix oops in USB PHY driver due to stack allocated platform_data ARM: multi_v7_defconfig: add NXP FlexCAN IP support ARM: multi_v7_defconfig: enable thermal driver for i.MX devices ARM: multi_v7_defconfig: add RN5T618 PMIC family support ARM: multi_v7_defconfig: add NXP graphics drivers ARM: multi_v7_defconfig: add GPMI NAND controller support ARM: multi_v7_defconfig: add OCOTP driver for NXP SoCs ARM: multi_v7_defconfig: configure I2C driver built-in arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE ARM: imx: fix imx6sll-only build ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well ARM: mxs_defconfig: Re-sync defconfig ARM: imx_v4_v5_defconfig: Use the generic fsl-asoc-card driver ARM: imx_v4_v5_defconfig: Re-sync defconfig arm64: defconfig: enable stmmac ethernet to defconfig ARM: EXYNOS: Simplify code in coupled CPU idle hot path ...
2018-04-06Merge tag 'armsoc-dt' of ↵Linus Torvalds2-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device tree updates from Arnd Bergmann: "This is the usual set of changes for device trees, with over 700 non-merged changesets. There is an ongoing set of dtc warning fixes and the usual bugfixes, cleanups and added device support. The most interesting bit as usual is support for new machines listed below: - The Allwinner H6 makes its debut with the Pine-H64 board, and we get two new machines based on its older siblings: the H5 based OrangePi Zero+ and the A64 based Teres-I Laptop from Olimex. On the 32-bit side, we add The Olimex som204 based on Allwinner A20, and the Banana Pi M2 Zero development board (based on H2). - NVIDIA adds support for Tegra194 aka "Xavier", plus their p2972 development board and p2888 CPU module. - The Nuvoton npcm750 is a BMC that was newly added, for now we only support running on the evaluation board. - STmicroelectronics stm32 gains support for the stm32mp157c and two evaluation boards. - The Toradex Colibri board family grows a few members based on the i.MX6ULL variant. - The Advantec DMS-BA16 is a Qseven module using the NXP i.MX6 family of chips. - The Phytec phyBOARD Mira is a family of industrial boards based on i.MX6. For now, four models get added. - TI am335x based PDU-001 is an industrial embedded machine used for traffic monitoring - The Aspeed platform now supports running on the BMC on the Qualcomm Centriq 2400 server - Samsung Exynos4 based Galaxy S3 is a family of mobile phones Qualcomm msm8974 based Galaxy S5 is a rather different phone made by the same company. - The Xilinx Zynq and ZynqMP platforms now gained a lot of dts file for the various boards made by Xilinx themselves, as well as the Digilent Zybo Z7. - The ARM Versatile family now supports the "IB2" interface board. - The Renesas H2 based "Stout" and the H3 based Salvator-X are more evaluation boards named after a kind of beer, as most of them are. The r8a77980 (V3H) based "Condor" apparently doesn't follow that tradition. ;-) - ROC-RK3328-CC is a simple developement board from the Libre Computer Project, based on the Rockchips RK3328 SoC - Haiku is another development board plus Qseven module based on Rockchips RK3368 and made by Theobroma Systems" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (701 commits) arm: dts: modify Nuvoton NPCM7xx device tree structure arm: dts: modify Makefile NPCM750 configuration name arm: dts: modify clock binding in NPCM750 device tree arm: dts: modify timer register size in NPCM750 device tree arm: dts: modify UART compatible name in NPCM750 device tree arm: dts: add watchdog device to NPCM750 device tree arm64: dts: uniphier: add ethernet node for PXs3 ARM: dts: uniphier: add pinctrl groups of ethernet for second instance arm: dts: kirkwood*.dts: use SPDX-License-Identifier for board using GPL-2.0+ arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0+/MIT arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0 arm: dts: armada-385-turris-omnia: use SPDX-License-Identifier arm: dts: armada-385-db-ap: use SPDX-License-Identifier arm: dts: armada-388-rd: use SPDX-License-Identifier arm: dts: armada-xp-db-xc3-24g4xg: use SPDX-License-Identifier arm: dts: armada-xp-db-dxbc2: use SPDX-License-Identifier arm: dts: armada-370-db: use SPDX-License-Identifier arm: dts: armada-*.dts: use SPDX-License-Identifier for most of the Armada based board arm: dts: armada-xp-98dx: use SPDX-License-Identifier for prestara 98d SoCs arm: dts: armada-*.dtsi: use SPDX-License-Identifier for most of the Armada SoCs ...
2018-04-06Merge tag 'devicetree-for-4.17' of ↵Linus Torvalds8-126/+527
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - Sync dtc to upstream version v1.4.6-9-gaadd0b65c987. This adds a bunch more warnings (hidden behind W=1). - Build dtc lexer and parser files instead of using shipped versions. - Rework overlay apply API to take an FDT as input and apply overlays in a single step. - Add a phandle lookup cache. This improves boot time by hundreds of msec on systems with large DT. - Add trivial mcp4017/18/19 potentiometers bindings. - Remove VLA stack usage in DT code. * tag 'devicetree-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (26 commits) of: unittest: fix an error code in of_unittest_apply_overlay() of: unittest: move misplaced function declaration of: unittest: Remove VLA stack usage of: overlay: Fix forgotten reference to of_overlay_apply() of: Documentation: Fix forgotten reference to of_overlay_apply() of: unittest: local return value variable related cleanups of: unittest: remove unneeded local return value variables dt-bindings: trivial: add various mcp4017/18/19 potentiometers of: unittest: fix an error test in of_unittest_overlay_8() of: cache phandle nodes to reduce cost of of_find_node_by_phandle() dt-bindings: rockchip-dw-mshc: use consistent clock names MAINTAINERS: Add linux/of_*.h headers to appropriate subsystems scripts: turn off some new dtc warnings by default scripts/dtc: Update to upstream version v1.4.6-9-gaadd0b65c987 scripts/dtc: generate lexer and parser during build instead of shipping powerpc: boot: add strrchr function of: overlay: do not include path in full_name of added nodes of: unittest: clean up changeset test arm64/efi: Make strrchr() available to the EFI namespace ARM: boot: add strrchr function ...
2018-04-06hv_netvsc: Pass net_device parameter to revoke and teardown functionsMohammed Gamal1-19/+18
The callers to netvsc_revoke_*_buf() and netvsc_teardown_*_gpadl() already have their net_device instances. Pass them as a paramaeter to the function instead of obtaining them from netvsc_device struct everytime Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06hv_netvsc: Ensure correct teardown message sequence orderMohammed Gamal1-6/+13
Prior to commit 0cf737808ae7 ("hv_netvsc: netvsc_teardown_gpadl() split") the call sequence in netvsc_device_remove() was as follows (as implemented in netvsc_destroy_buf()): 1- Send NVSP_MSG1_TYPE_REVOKE_RECV_BUF message 2- Teardown receive buffer GPADL 3- Send NVSP_MSG1_TYPE_REVOKE_SEND_BUF message 4- Teardown send buffer GPADL 5- Close vmbus This didn't work for WS2016 hosts. Commit 0cf737808ae7 ("hv_netvsc: netvsc_teardown_gpadl() split") rearranged the teardown sequence as follows: 1- Send NVSP_MSG1_TYPE_REVOKE_RECV_BUF message 2- Send NVSP_MSG1_TYPE_REVOKE_SEND_BUF message 3- Close vmbus 4- Teardown receive buffer GPADL 5- Teardown send buffer GPADL That worked well for WS2016 hosts, but it prevented guests on older hosts from shutting down after changing network settings. Commit 0ef58b0a05c1 ("hv_netvsc: change GPAD teardown order on older versions") ensured the following message sequence for older hosts 1- Send NVSP_MSG1_TYPE_REVOKE_RECV_BUF message 2- Send NVSP_MSG1_TYPE_REVOKE_SEND_BUF message 3- Teardown receive buffer GPADL 4- Teardown send buffer GPADL 5- Close vmbus However, with this sequence calling `ip link set eth0 mtu 1000` hangs and the process becomes uninterruptible. On futher analysis it turns out that on tearing down the receive buffer GPADL the kernel is waiting indefinitely in vmbus_teardown_gpadl() for a completion to be signaled. Here is a snippet of where this occurs: int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle) { struct vmbus_channel_gpadl_teardown *msg; struct vmbus_channel_msginfo *info; unsigned long flags; int ret; info = kmalloc(sizeof(*info) + sizeof(struct vmbus_channel_gpadl_teardown), GFP_KERNEL); if (!info) return -ENOMEM; init_completion(&info->waitevent); info->waiting_channel = channel; [....] ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_gpadl_teardown), true); if (ret) goto post_msg_err; wait_for_completion(&info->waitevent); [....] } The completion is signaled from vmbus_ongpadl_torndown(), which gets called when the corresponding message is received from the host, which apparently never happens in that case. This patch works around the issue by restoring the first mentioned message sequence for older hosts Fixes: 0ef58b0a05c1 ("hv_netvsc: change GPAD teardown order on older versions") Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06hv_netvsc: Split netvsc_revoke_buf() and netvsc_teardown_gpadl()Mohammed Gamal1-12/+34
Split each of the functions into two for each of send/recv buffers. This will be needed in order to implement a fine-grained messaging sequence to the host so that we accommodate the requirements of different Windows versions Fixes: 0ef58b0a05c12 ("hv_netvsc: change GPAD teardown order on older versions") Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06hv_netvsc: Use Windows version instead of NVSP version on GPAD teardownMohammed Gamal1-2/+2
When changing network interface settings, Windows guests older than WS2016 can no longer shutdown. This was addressed by commit 0ef58b0a05c12 ("hv_netvsc: change GPAD teardown order on older versions"), however the issue also occurs on WS2012 guests that share NVSP protocol versions with WS2016 guests. Hence we use Windows version directly to differentiate them. Fixes: 0ef58b0a05c12 ("hv_netvsc: change GPAD teardown order on older versions") Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06net: mvpp2: Fix parser entry init boundary checkMaxime Chevallier1-1/+1
Boundary check in mvpp2_prs_init_from_hw must be done according to the passed "tid" parameter, not the mvpp2_prs_entry index, which is not yet initialized at the time of the check. Fixes: 47e0e14eb1a6 ("net: mvpp2: Make mvpp2_prs_hw_read a parser entry init function") Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-06Merge tag 'scsi-for-linus' of ↵Linus Torvalds154-10408/+5293
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI updates from James Bottomley: "This is mostly updates of the usual drivers: arcmsr, qla2xx, lpfc, ufs, mpt3sas, hisi_sas. In addition we have removed several really old drivers: sym53c416, NCR53c406a, fdomain, fdomain_cs and removed the old scsi_module.c initialization from all remaining drivers. Plus an assortment of bug fixes, initialization errors and other minor fixes" * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (168 commits) scsi: ufs: Add support for Auto-Hibernate Idle Timer scsi: ufs: sysfs: reworking of the rpm_lvl and spm_lvl entries scsi: qla2xxx: fx00 copypaste typo scsi: qla2xxx: fix error message on <qla2400 scsi: smartpqi: update driver version scsi: smartpqi: workaround fw bug for oq deletion scsi: arcmsr: Change driver version to v1.40.00.05-20180309 scsi: arcmsr: Sleep to avoid CPU stuck too long for waiting adapter ready scsi: arcmsr: Handle adapter removed due to thunderbolt cable disconnection. scsi: arcmsr: Rename ACB_F_BUS_HANG_ON to ACB_F_ADAPTER_REMOVED for adapter hot-plug scsi: qla2xxx: Update driver version to 10.00.00.06-k scsi: qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan scsi: qla2xxx: Cleanup code to improve FC-NVMe error handling scsi: qla2xxx: Fix FC-NVMe IO abort during driver reset scsi: qla2xxx: Fix retry for PRLI RJT with reason of BUSY scsi: qla2xxx: Remove nvme_done_list scsi: qla2xxx: Return busy if rport going away scsi: qla2xxx: Fix n2n_ae flag to prevent dev_loss on PDB change scsi: qla2xxx: Add FC-NVMe abort processing scsi: qla2xxx: Add changes for devloss timeout in driver ...