1. 26 Nov, 2017 1 commit
  2. 21 Nov, 2017 4 commits
  3. 06 Nov, 2017 1 commit
    • Mark Rutland's avatar
      ARM: 8720/1: ensure dump_instr() checks addr_limit · b9dd05c7
      Mark Rutland authored
      When CONFIG_DEBUG_USER is enabled, it's possible for a user to
      deliberately trigger dump_instr() with a chosen kernel address.
      Let's avoid problems resulting from this by using get_user() rather than
      __get_user(), ensuring that we don't erroneously access kernel memory.
      So that we can use the same code to dump user instructions and kernel
      instructions, the common dumping code is factored out to __dump_instr(),
      with the fs manipulated appropriately in dump_instr() around calls to
      Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
  4. 02 Nov, 2017 1 commit
  5. 01 Nov, 2017 1 commit
    • Luc Van Oostenryck's avatar
      ARM: 8716/1: pass endianness info to sparse · ff0c6eec
      Luc Van Oostenryck authored
      ARM depends on the macros '__ARMEL__' & '__ARMEB__' being defined
      or not to correctly select or define endian-specific macros,
      structures or pieces of code.
      These macros are predefined by the compiler but sparse knows
      nothing about them and thus may pre-process files differently
      from what gcc would.
      Fix this by passing '-D__ARMEL__' or '-D__ARMEB__' to sparse,
      depending on the endianness of the kernel, like defined by GCC.
      Note: In most case it won't change anything since most ARMs use
            little-endian (but an allyesconfig would use big-endian!).
      To: Russell King <linux@armlinux.org.uk>
      Cc: linux-arm-kernel@lists.infradead.org
      Signed-off-by: default avatarLuc Van Oostenryck <luc.vanoostenryck@gmail.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
  6. 27 Oct, 2017 1 commit
    • Ard Biesheuvel's avatar
      efi/libstub: arm: omit sorting of the UEFI memory map · 29f9007b
      Ard Biesheuvel authored
      ARM shares its EFI stub implementation with arm64, which has some
      special handling in the virtual remapping code to
      a) make sure that we can map everything even if the OS executes
         with 64k page size, and
      b) make sure that adjacent regions with the same attributes are not
         reordered or moved apart in memory.
      The latter is a workaround for a 'feature' that was shortly recommended
      by UEFI spec v2.5, but deprecated shortly after, due to the fact that
      it broke many OS installers, including non-Linux ones, and it was never
      widely implemented for ARM systems. Before implementing b), the arm64
      code simply rounded up all regions to 64 KB granularity, but given that
      that results in moving adjacent regions apart, it had to be refined when
      b) was implemented.
      The adjacency check requires a sort() pass, due to the fact that the
      UEFI spec does not mandate any ordering, and the inclusion of the
      lib/sort.c code into the ARM EFI stub is causing some trouble with
      the decompressor build due to the fact that its EXPORT_SYMBOL() call
      triggers the creation of ksymtab/kcrctab sections.
      So let's simply do away with the adjacency check for ARM, and simply put
      all UEFI runtime regions together if they have the same memory attributes.
      This is guaranteed to work, given that ARM only supports 4 KB pages,
      and allows us to remove the sort() call entirely.
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Acked-by: default avatarWill Deacon <will.deacon@arm.com>
      Tested-by: default avatarJeffy Chen <jeffy.chen@rock-chips.com>
      Tested-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
      Tested-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
  7. 24 Oct, 2017 1 commit
    • Arnd Bergmann's avatar
      ARM: 8715/1: add a private asm/unaligned.h · 1cce91df
      Arnd Bergmann authored
      The asm-generic/unaligned.h header provides two different implementations
      for accessing unaligned variables: the access_ok.h version used when
      CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set pretends that all pointers
      are in fact aligned, while the le_struct.h version convinces gcc that the
      alignment of a pointer is '1', to make it issue the correct load/store
      instructions depending on the architecture flags.
      On ARMv5 and older, we always use the second version, to let the compiler
      use byte accesses. On ARMv6 and newer, we currently use the access_ok.h
      version, so the compiler can use any instruction including stm/ldm and
      ldrd/strd that will cause an alignment trap. This trap can significantly
      impact performance when we have to do a lot of fixups and, worse, has
      led to crashes in the LZ4 decompressor code that does not have a trap
      This adds an ARM specific version of asm/unaligned.h that uses the
      le_struct.h/be_struct.h implementation unconditionally. This should lead
      to essentially the same code on ARMv6+ as before, with the exception of
      using regular load/store instructions instead of the trapping instructions
      multi-register variants.
      The crash in the LZ4 decompressor code was probably introduced by the
      patch replacing the LZ4 implementation, commit 4e1a33b1 ("lib: update
      LZ4 compressor module"), so linux-4.11 and higher would be affected most.
      However, we probably want to have this backported to all older stable
      kernels as well, to help with the performance issues.
      There are two follow-ups that I think we should also work on, but not
      backport to stable kernels, first to change the asm-generic version of
      the header to remove the ARM special case, and second to review all
      other uses of CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS to see if they
      might be affected by the same problem on ARM.
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
  8. 12 Oct, 2017 3 commits
  9. 16 Sep, 2017 13 commits
    • Linus Torvalds's avatar
      Linux 4.14-rc1 · 2bd6bf03
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge tag 'upstream-4.14-rc1' of git://git.infradead.org/linux-ubifs · 194a4ef9
      Linus Torvalds authored
      Pull UBI updates from Richard Weinberger:
       "Minor improvements"
      * tag 'upstream-4.14-rc1' of git://git.infradead.org/linux-ubifs:
        UBI: Fix two typos in comments
        ubi: fastmap: fix spelling mistake: "invalidiate" -> "invalidate"
        ubi: pr_err() strings should end with newlines
        ubi: pr_err() strings should end with newlines
        ubi: pr_err() strings should end with newlines
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml · 2896b80e
      Linus Torvalds authored
      Pull UML updates from Richard Weinberger:
       - minor improvements
       - fixes for Debian's new gcc defaults (pie enabled by default)
       - fixes for XSTATE/XSAVE to make UML work again on modern systems
      * 'for-linus-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
        um: return negative in tuntap_open_tramp()
        um: remove a stray tab
        um: Use relative modversions with LD_SCRIPT_DYN
        um: link vmlinux with -no-pie
        um: Fix CONFIG_GCOV for modules.
        Fix minor typos and grammar in UML start_up help
        um: defconfig: Cleanup from old Kconfig options
        um: Fix FP register size for XSTATE/XSAVE
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 48bddb14
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       1) Fix hotplug deadlock in hv_netvsc, from Stephen Hemminger.
       2) Fix double-free in rmnet driver, from Dan Carpenter.
       3) INET connection socket layer can double put request sockets, fix
          from Eric Dumazet.
       4) Don't match collect metadata-mode tunnels if the device is down,
          from Haishuang Yan.
       5) Do not perform TSO6/GSO on ipv6 packets with extensions headers in
          be2net driver, from Suresh Reddy.
       6) Fix scaling error in gen_estimator, from Eric Dumazet.
       7) Fix 64-bit statistics deadlock in systemport driver, from Florian
       8) Fix use-after-free in sctp_sock_dump, from Xin Long.
       9) Reject invalid BPF_END instructions in verifier, from Edward Cree.
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
        mlxsw: spectrum_router: Only handle IPv4 and IPv6 events
        Documentation: link in networking docs
        tcp: fix data delivery rate
        bpf/verifier: reject BPF_ALU64|BPF_END
        sctp: do not mark sk dumped when inet_sctp_diag_fill returns err
        sctp: fix an use-after-free issue in sctp_sock_dump
        netvsc: increase default receive buffer size
        tcp: update skb->skb_mstamp more carefully
        net: ipv4: fix l3slave check for index returned in IP_PKTINFO
        net: smsc911x: Quieten netif during suspend
        net: systemport: Fix 64-bit stats deadlock
        net: vrf: avoid gcc-4.6 warning
        qed: remove unnecessary call to memset
        tg3: clean up redundant initialization of tnapi
        tls: make tls_sw_free_resources static
        sctp: potential read out of bounds in sctp_ulpevent_type_enabled()
        MAINTAINERS: review Renesas DT bindings as well
        net_sched: gen_estimator: fix scaling error in bytes/packets samples
        nfp: wait for the NSP resource to appear on boot
        nfp: wait for board state before talking to the NSP
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · c8503720
      Linus Torvalds authored
      Pull more input updates from Dmitry Torokhov:
       "A second round of updates for the input subsystem:
         - a new driver for PWM-controlled vibrators
         - ucb1400 touchscreen driver had completely busted suspend/resume
         - we now handle "home" button found on some devices with Goodix
         - assorted other fixups"
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: i8042 - add Gigabyte P57 to the keyboard reset table
        Input: xpad - validate USB endpoint type during probe
        Input: ucb1400_ts - fix suspend and resume handling
        Input: edt-ft5x06 - fix access to non-existing register
        Input: elantech - make arrays debounce_packet static, reduces object code size
        Input: surface3_spi - make const array header static, reduces object code size
        Input: goodix - add support for capacitive home button
        Input: add a driver for PWM controllable vibrators
        Input: adi - make array seq static, reduces object code size
    • Markus Trippelsdorf's avatar
      firmware: Restore support for built-in firmware · df85b2d7
      Markus Trippelsdorf authored
      Commit 5620a0d1 ("firmware: delete in-kernel firmware") removed the
      entire firmware directory.  Unfortunately it thereby also removed the
      support for built-in firmware.
      This restores the ability to build firmware directly into the kernel by
      pruning the original Makefile to the necessary minimum.  The default for
      EXTRA_FIRMWARE_DIR is now the standard directory /lib/firmware/.
      Fixes: 5620a0d1 ("firmware: delete in-kernel firmware")
      Signed-off-by: default avatarMarkus Trippelsdorf <markus@trippelsdorf.de>
      Acked-by: default avatarGreg K-H <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Ido Schimmel's avatar
      mlxsw: spectrum_router: Only handle IPv4 and IPv6 events · 8e29f979
      Ido Schimmel authored
      The driver doesn't support events from address families other than IPv4
      and IPv6, so ignore them. Otherwise, we risk queueing a work item before
      it's initialized.
      This can happen in case a VRF is configured when MROUTE_MULTIPLE_TABLES
      is enabled, as the VRF driver will try to add an l3mdev rule for the
      IPMR family.
      Fixes: 65e65ec1 ("mlxsw: spectrum_router: Don't ignore IPv6 notifications")
      Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Reported-by: default avatarAndreas Rammhold <andreas@rammhold.de>
      Reported-by: default avatarFlorian Klink <flokli@flokli.de>
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Pavel Machek's avatar
      Documentation: link in networking docs · 2130c028
      Pavel Machek authored
      Fix link in filter.txt.
      Acked-by: default avatarPavel Machek <pavel@ucw.cz>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Eric Dumazet's avatar
      tcp: fix data delivery rate · fc225799
      Eric Dumazet authored
      Now skb->mstamp_skb is updated later, we also need to call
      tcp_rate_skb_sent() after the update is done.
      Fixes: 8c72c65b ("tcp: update skb->skb_mstamp more carefully")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Acked-by: default avatarSoheil Hassas Yeganeh <soheil@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Linus Torvalds's avatar
      Merge branch '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 73184130
      Linus Torvalds authored
      Pull MIPS updates from Ralf Baechle:
       "This is the main pull request for 4.14 for MIPS; below a summary of
        the non-merge commits:
         - Rename mips_cm_base to mips_gcr_base
         - Specify register size when generating accessors
         - Use BIT/GENMASK for register fields, order & drop shifts
         - Add cluster & block args to mips_cm_lock_other()
         - Use common CPS accessor generation macros
         - Use BIT/GENMASK for register fields, order & drop shifts
         - Introduce register modify (set/clear/change) accessors
         - Use change_*, set_* & clear_* where appropriate
         - Add CM/CPC 3.5 register definitions
         - Use GlobalNumber macros rather than magic numbers
         - Have asm/mips-cps.h include CM & CPC headers
         - Cluster support for topology functions
         - Detect CPUs in secondary clusters
         - Read GIC_VL_IDENT directly, not via irqchip driver
         - Consolidate coherent and non-coherent dma_alloc code
         - Don't use dma_cache_sync to implement fd_cacheflush
        FPU emulation / FP assist code:
         - Another series of 14 commits fixing corner cases such as NaN
           propgagation and other special input values.
         - Zero bits 32-63 of the result for a CLASS.D instruction.
         - Enhanced statics via debugfs
         - Do not use bools for arithmetic. GCC 7.1 moans about this.
         - Correct user fault_addr type
        Generic MIPS:
         - Enhancement of stack backtraces
         - Cleanup from non-existing options
         - Handle non word sized instructions when examining frame
         - Fix detection and decoding of ADDIUSP instruction
         - Fix decoding of SWSP16 instruction
         - Refactor handling of stack pointer in get_frame_info
         - Remove unreachable code from force_fcr31_sig()
         - Convert to using %pOF instead of full_name
         - Remove the R6000 support.
         - Move FP code from *_switch.S to *_fpu.S
         - Remove unused ST_OFF from r2300_switch.S
         - Allow platform to specify multiple its.S files
         - Add #includes to various files to ensure code builds reliable and
           without warning..
         - Remove __invalidate_kernel_vmap_range
         - Remove plat_timer_setup
         - Declare various variables & functions static
         - Abstract CPU core & VP(E) ID access through accessor functions
         - Store core & VP IDs in GlobalNumber-style variable
         - Unify checks for sibling CPUs
         - Add CPU cluster number accessors
         - Prevent direct use of generic_defconfig
         - Make CONFIG_MIPS_MT_SMP default y
         - Add __ioread64_copy
         - Remove unnecessary inclusions of linux/irqchip/mips-gic.h
         - Introduce asm/mips-gic.h with accessor functions
         - Use new GIC accessor functions in mips-gic-timer
         - Remove counter access functions from irq-mips-gic.c
         - Remove gic_read_local_vp_id() from irq-mips-gic.c
         - Simplify shared interrupt pending/mask reads in irq-mips-gic.c
         - Simplify gic_local_irq_domain_map() in irq-mips-gic.c
         - Drop gic_(re)set_mask() functions in irq-mips-gic.c
         - Remove gic_set_polarity(), gic_set_trigger(), gic_set_dual_edge(),
           gic_map_to_pin() and gic_map_to_vpe() from irq-mips-gic.c.
         - Convert remaining shared reg access, local int mask access and
           remaining local reg access to new accessors
         - Move GIC_LOCAL_INT_* to asm/mips-gic.h
         - Remove GIC_CPU_INT* macros from irq-mips-gic.c
         - Move various definitions to the driver
         - Remove gic_get_usm_range()
         - Remove __gic_irq_dispatch() forward declaration
         - Remove gic_init()
         - Use mips_gic_present() in place of gic_present and remove
         - Move gic_get_c0_*_int() to asm/mips-gic.h
         - Remove linux/irqchip/mips-gic.h
         - Inline __gic_init()
         - Inline gic_basic_init()
         - Make pcpu_masks a per-cpu variable
         - Use pcpu_masks to avoid reading GIC_SH_MASK*
         - Clean up mti, reserved-cpu-vectors handling
         - Use cpumask_first_and() in gic_set_affinity()
         - Let the core set struct irq_common_data affinity
         - Fix microMIPS stack unwinding on big endian systems
         - SYNC after enabling GIC region
         - Remove the unused parent_node() macro
         - Constify r2_decoder_tables
         - Add accessor & bit definitions for GlobalNumber
         - Constify smp ops
         - Allow boot_secondary SMP op to return errors
         - Drop gic_get_usm_range() usage
         - Avoid use of linux/irqchip/mips-gic.h
        Platform changes:
         - Add devboard machine type to cpuinfo
         - update cpu feature overrides
         - Threaded carddetect irqs for devboards
         - allow NULL clock for clk_get_rate
         - Fix ENETDMA_6345_MAXBURST_REG offset
         - Allow NULL clock for clk_get_rate
         - Enable GPIO and RTC drivers in defconfig
         - Add ethernet and fixed-regulator nodes to DTS
        Generic platform:
         - Move Boston and NI 169445 FIT image source to their own files
         - Include asm/bootinfo.h for plat_fdt_relocated()
         - Include asm/time.h for get_c0_*_int()
         - Include asm/bootinfo.h for plat_fdt_relocated()
         - Include asm/time.h for get_c0_*_int()
         - Allow filtering enabled boards by requirements
         - Don't explicitly disable CONFIG_USB_SUPPORT
         - Bump default NR_CPUS to 16
         - Probe the jz4740-rtc driver from devicetree
         - Drop check of boot select from the spi-falcon driver.
         - Drop check of boot select from the lantiq-flash MTD driver.
         - Access boot cause register in the watchdog driver through regmap
         - Add device tree binding documentation for the watchdog driver
         - Add docs for the RCU DT bindings.
         - Convert the fpi bus driver to a platform_driver
         - Remove ltq_reset_cause() and ltq_boot_select(
         - Switch to a proper reset driver
         - Switch to a new drivers/soc GPHY driver
         - Add an USB PHY driver for the Lantiq SoCs using the RCU module
         - Use of_platform_default_populate instead of __dt_register_buses
         - Enable MFD_SYSCON to be able to use it for the RCU MFD
         - Replace ltq_boot_select() with dummy implementation.
        Loongson 2F:
         - Allow NULL clock for clk_get_rate
         - Use new GIC accessor functions
        NI 169445:
         - Add support for NI 169445 board.
         - Only include in 32r2el kernels
         - Add support for watchdog of 78XX SOCs.
         - Add support for watchdog of CN68XX SOCs.
         - Expose support for mips32r1, mips32r2 and mips64r1
         - Enable more drivers in config file
         - Add support for accessing the boot vector.
         - Remove old boot vector code from watchdog driver
         - Define watchdog registers for 70xx, 73xx, 78xx, F75xx.
         - Make CSR functions node aware.
         - Allow access to CIU3 IRQ domains.
         - Misc cleanups in the watchdog driver
         - New board, add support and defconfig
         - Enable Root FS on NFS in defconfig
         - Add Mediatek MT7628A SoC
         - Allow NULL clock for clk_get_rate
         - Explicitly request exclusive reset control in the pci-mt7620 PCI driver.
         - Only include in 32 bit kernels by default
         - Add VoCore as a vendor t0 dt-bindings
         - Add defconfig file"
      * '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (167 commits)
        MIPS: Refactor handling of stack pointer in get_frame_info
        MIPS: Stacktrace: Fix microMIPS stack unwinding on big endian systems
        MIPS: microMIPS: Fix decoding of swsp16 instruction
        MIPS: microMIPS: Fix decoding of addiusp instruction
        MIPS: microMIPS: Fix detection of addiusp instruction
        MIPS: Handle non word sized instructions when examining frame
        MIPS: ralink: allow NULL clock for clk_get_rate
        MIPS: Loongson 2F: allow NULL clock for clk_get_rate
        MIPS: BCM63XX: allow NULL clock for clk_get_rate
        MIPS: AR7: allow NULL clock for clk_get_rate
        MIPS: BCM63XX: fix ENETDMA_6345_MAXBURST_REG offset
        mips: Save all registers when saving the frame
        MIPS: Add DWARF unwinding to assembly
        MIPS: Make SAVE_SOME more standard
        MIPS: Fix issues in backtraces
        MIPS: jz4780: DTS: Probe the jz4740-rtc driver from devicetree
        MIPS: Ci20: Enable RTC driver
        watchdog: octeon-wdt: Add support for 78XX SOCs.
        watchdog: octeon-wdt: Add support for cn68XX SOCs.
        watchdog: octeon-wdt: File cleaning.
    • Linus Torvalds's avatar
      Merge tag 'pci-v4.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 8d93c7a4
      Linus Torvalds authored
      Pull PCI fix from Bjorn Helgaas:
       "Revert an attempt to fix a race while enabling upstream bridges
        because it broke iwlwifi firmware loading"
      * tag 'pci-v4.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        Revert "PCI: Avoid race while enabling upstream bridges"
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux · 02cfe977
      Linus Torvalds authored
      Pull drm AMD fixes from Dave Airlie:
       "Just had a single AMD fixes pull from Alex for rc1"
      * tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux:
        drm/amdgpu: revert "fix deadlock of reservation between cs and gpu reset v2"
        drm/amdgpu: remove duplicate return statement
        drm/amdgpu: check memory allocation failure
        drm/amd/amdgpu: fix BANK_SELECT on Vega10 (v2)
        drm/amdgpu: inline amdgpu_ttm_do_bind again
        drm/amdgpu: fix amdgpu_ttm_bind
        drm/amdgpu: remove the GART copy hack
        drm/ttm:fix wrong decoding of bo_count
        drm/ttm: fix missing inc bo_count
        drm/amdgpu: set sched_hw_submission higher for KIQ (v3)
        drm/amdgpu: move default gart size setting into gmc modules
        drm/amdgpu: refine default gart size
        drm/amd/powerplay: ACG frequency added in PPTable
        drm/amdgpu: discard commands of killed processes
        drm/amdgpu: fix and cleanup shadow handling
        drm/amdgpu: add automatic per asic settings for gart_size
        drm/amdgpu/gfx8: fix spelling typo in mqd allocation
        drm/amd/powerplay: unhalt mec after loading
        drm/amdgpu/virtual_dce: Virtual display doesn't support disable vblank immediately
        drm/amdgpu: Fix huge page updates with CPU
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · bbe05e54
      Linus Torvalds authored
      Pull more i2c updates from Wolfram Sang:
       "I2C has two more new drivers: Altera FPGA and STM32F7"
      * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: i2c-stm32f7: add driver
        i2c: i2c-stm32f4: use generic definition of speed enum
        dt-bindings: i2c-stm32: Document the STM32F7 I2C bindings
        i2c: altera: Add Altera I2C Controller driver
        dt-bindings: i2c: Add Altera I2C Controller
  10. 15 Sep, 2017 14 commits
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 9db59599
      Linus Torvalds authored
      Pull more KVM updates from Paolo Bonzini:
       - PPC bugfixes
       - RCU splat fix
       - swait races fix
       - pointless userspace-triggerable BUG() fix
       - misc fixes for KVM_RUN corner cases
       - nested virt correctness fixes + one host DoS
       - some cleanups
       - clang build fix
       - fix AMD AVIC with default QEMU command line options
       - x86 bugfixes
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
        kvm: nVMX: Handle deferred early VMLAUNCH/VMRESUME failure properly
        kvm: vmx: Handle VMLAUNCH/VMRESUME failure properly
        kvm: nVMX: Remove nested_vmx_succeed after successful VM-entry
        kvm,mips: Fix potential swait_active() races
        kvm,powerpc: Serialize wq active checks in ops->vcpu_kick
        kvm: Serialize wq active checks in kvm_vcpu_wake_up()
        kvm,x86: Fix apf_task_wake_one() wq serialization
        kvm,lapic: Justify use of swait_active()
        kvm,async_pf: Use swq_has_sleeper()
        sched/wait: Add swq_has_sleeper()
        KVM: VMX: Do not BUG() on out-of-bounds guest IRQ
        KVM: Don't accept obviously wrong gsi values via KVM_IRQFD
        kvm: nVMX: Don't allow L2 to access the hardware CR8
        KVM: trace events: update list of exit reasons
        KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously
        KVM: X86: Don't block vCPU if there is pending exception
        KVM: SVM: Add irqchip_split() checks before enabling AVIC
        KVM: Add struct kvm_vcpu pointer parameter to get_enable_apicv()
        KVM: SVM: Refactor AVIC vcpu initialization into avic_init_vcpu()
        KVM: x86: fix clang build
    • Edward Cree's avatar
      bpf/verifier: reject BPF_ALU64|BPF_END · e67b8a68
      Edward Cree authored
      Neither ___bpf_prog_run nor the JITs accept it.
      Also adds a new test case.
      Fixes: 17a52670 ("bpf: verifier (add verifier core)")
      Signed-off-by: default avatarEdward Cree <ecree@solarflare.com>
      Acked-by: default avatarAlexei Starovoitov <ast@kernel.org>
      Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Xin Long's avatar
      sctp: do not mark sk dumped when inet_sctp_diag_fill returns err · 8c7c19a5
      Xin Long authored
      sctp_diag would not actually dump out sk/asoc if inet_sctp_diag_fill
      returns err, in which case it shouldn't mark sk dumped by setting
      cb->args[3] as 1 in sctp_sock_dump().
      Otherwise, it could cause some asocs to have no parent's sk dumped
      in 'ss --sctp'.
      So this patch is to not set cb->args[3] when inet_sctp_diag_fill()
      returns err in sctp_sock_dump().
      Fixes: 8f840e47 ("sctp: add the sctp_diag.c file")
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Acked-by: default avatarMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
      Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Xin Long's avatar
      sctp: fix an use-after-free issue in sctp_sock_dump · d25adbeb
      Xin Long authored
      Commit 86fdb344 ("sctp: ensure ep is not destroyed before doing the
      dump") tried to fix an use-after-free issue by checking !sctp_sk(sk)->ep
      with holding sock and sock lock.
      But Paolo noticed that endpoint could be destroyed in sctp_rcv without
      sock lock protection. It means the use-after-free issue still could be
      triggered when sctp_rcv put and destroy ep after sctp_sock_dump checks
      !ep, although it's pretty hard to reproduce.
      I could reproduce it by mdelay in sctp_rcv while msleep in sctp_close
      and sctp_sock_dump long time.
      This patch is to add another param cb_done to sctp_for_each_transport
      and dump ep->assocs with holding tsp after jumping out of transport's
      traversal in it to avoid this issue.
      It can also improve sctp diag dump to make it run faster, as no need
      to save sk into cb->args[5] and keep calling sctp_for_each_transport
      any more.
      This patch is also to use int * instead of int for the pos argument
      in sctp_for_each_transport, which could make postion increment only
      in sctp_for_each_transport and no need to keep changing cb->args[2]
      in sctp_sock_filter and sctp_sock_dump any more.
      Fixes: 86fdb344 ("sctp: ensure ep is not destroyed before doing the dump")
      Reported-by: default avatarPaolo Abeni <pabeni@redhat.com>
      Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
      Acked-by: default avatarMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
      Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Stephen Hemminger's avatar
      netvsc: increase default receive buffer size · 5023a6db
      Stephen Hemminger authored
      The default receive buffer size was reduced by recent change
      to a value which was appropriate for 10G and Windows Server 2016.
      But the value is too small for full performance with 40G on Azure.
      Increase the default back to maximum supported by host.
      Fixes: 8b532797 ("netvsc: allow controlling send/recv buffer size")
      Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Eric Dumazet's avatar
      tcp: update skb->skb_mstamp more carefully · 8c72c65b
      Eric Dumazet authored
      liujian reported a problem in TCP_USER_TIMEOUT processing with a patch
      in tcp_probe_timer() :
      After investigations, the root cause of the problem is that we update
      skb->skb_mstamp of skbs in write queue, even if the attempt to send a
      clone or copy of it failed. One reason being a routing problem.
      This patch prevents this, solving liujian issue.
      It also removes a potential RTT miscalculation, since
      __tcp_retransmit_skb() is not OR-ing TCP_SKB_CB(skb)->sacked with
      TCPCB_EVER_RETRANS if a failure happens, but skb->skb_mstamp has
      been changed.
      A future ACK would then lead to a very small RTT sample and min_rtt
      would then be lowered to this too small value.
      # cat user_timeout.pkt
          0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
         +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
         +0 bind(3, ..., ...) = 0
         +0 listen(3, 1) = 0
         +0 `ifconfig tun0; ip ro add dev tun0`
         +0 < S 0:0(0) win 0 <mss 1460>
         +0 > S. 0:0(0) ack 1 <mss 1460>
        +.1 < . 1:1(0) ack 1 win 65530
         +0 accept(3, ..., ...) = 4
         +0 setsockopt(4, SOL_TCP, TCP_USER_TIMEOUT, [3000], 4) = 0
         +0 write(4, ..., 24) = 24
         +0 > P. 1:25(24) ack 1 win 29200
         +.1 < . 1:1(0) ack 25 win 65530
      //change the ipaddress
         +1 `ifconfig tun0`
         +1 write(4, ..., 24) = 24
         +1 write(4, ..., 24) = 24
         +1 write(4, ..., 24) = 24
         +1 write(4, ..., 24) = 24
         +0 `ifconfig tun0`
         +0 < . 1:2(1) ack 25 win 65530
         +0 `ifconfig tun0`
         +3 write(4, ..., 24) = -1
      # ./packetdrill user_timeout.pkt
      Signed-off-by: default avatarEric Dumazet <edumazet@googl.com>
      Reported-by: default avatarliujian <liujian56@huawei.com>
      Acked-by: default avatarNeal Cardwell <ncardwell@google.com>
      Acked-by: default avatarYuchung Cheng <ycheng@google.com>
      Acked-by: default avatarSoheil Hassas Yeganeh <soheil@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • David Ahern's avatar
      net: ipv4: fix l3slave check for index returned in IP_PKTINFO · cbea8f02
      David Ahern authored
      rt_iif is only set to the actual egress device for the output path. The
      recent change to consider the l3slave flag when returning IP_PKTINFO
      works for local traffic (the correct device index is returned), but it
      broke the more typical use case of packets received from a remote host
      always returning the VRF index rather than the original ingress device.
      Update the fixup to consider l3slave and rt_iif actually getting set.
      Fixes: 1dfa7639 ("net: ipv4: add check for l3slave for index returned in IP_PKTINFO")
      Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Geert Uytterhoeven's avatar
      net: smsc911x: Quieten netif during suspend · 2aa70f86
      Geert Uytterhoeven authored
      If the network interface is kept running during suspend, the net core
      may call net_device_ops.ndo_start_xmit() while the Ethernet device is
      still suspended, which may lead to a system crash.
      E.g. on sh73a0/kzm9g and r8a73a4/ape6evm, the external Ethernet chip is
      driven by a PM controlled clock.  If the Ethernet registers are accessed
      while the clock is not running, the system will crash with an imprecise
      external abort.
      As this is a race condition with a small time window, it is not so easy
      to trigger at will.  Using pm_test may increase your chances:
          # echo 0 > /sys/module/printk/parameters/console_suspend
          # echo platform > /sys/power/pm_test
          # echo mem > /sys/power/state
      To fix this, make sure the network interface is quietened during
      Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Florian Fainelli's avatar
      net: systemport: Fix 64-bit stats deadlock · 7095c973
      Florian Fainelli authored
      We can enter a deadlock situation because there is no sufficient protection
      when ndo_get_stats64() runs in process context to guard against RX or TX NAPI
      contexts running in softirq, this can lead to the following lockdep splat and
      actual deadlock was experienced as well with an iperf session in the background
      and a while loop doing ifconfig + ethtool.
      [    5.780350] ================================
      [    5.784679] WARNING: inconsistent lock state
      [    5.789011] 4.13.0-rc7-02179-g32fae27c725d #70 Not tainted
      [    5.794561] --------------------------------
      [    5.798890] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
      [    5.804971] swapper/0/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
      [    5.810175]  (&syncp->seq#2){+.?...}, at: [<c0768a28>] bcm_sysport_tx_reclaim+0x30/0x54
      [    5.818327] {SOFTIRQ-ON-W} state was registered at:
      [    5.823278]   bcm_sysport_get_stats64+0x17c/0x258
      [    5.828053]   dev_get_stats+0x38/0xac
      [    5.831776]   rtnl_fill_stats+0x30/0x118
      [    5.835761]   rtnl_fill_ifinfo+0x538/0xe24
      [    5.839921]   rtmsg_ifinfo_build_skb+0x6c/0xd8
      [    5.844430]   rtmsg_ifinfo_event.part.5+0x14/0x44
      [    5.849201]   rtmsg_ifinfo+0x20/0x28
      [    5.852837]   register_netdevice+0x628/0x6b8
      [    5.857171]   register_netdev+0x14/0x24
      [    5.861051]   bcm_sysport_probe+0x30c/0x438
      [    5.865280]   platform_drv_probe+0x50/0xb0
      [    5.869418]   driver_probe_device+0x2e8/0x450
      [    5.873817]   __driver_attach+0x104/0x120
      [    5.877871]   bus_for_each_dev+0x7c/0xc0
      [    5.881834]   bus_add_driver+0x1b0/0x270
      [    5.885797]   driver_register+0x78/0xf4
      [    5.889675]   do_one_initcall+0x54/0x190
      [    5.893646]   kernel_init_freeable+0x144/0x1d0
      [    5.898135]   kernel_init+0x8/0x110
      [    5.901665]   ret_from_fork+0x14/0x2c
      [    5.905363] irq event stamp: 24263
      [    5.908804] hardirqs last  enabled at (24262): [<c08eecf0>] net_rx_action+0xc4/0x4e4
      [    5.916624] hardirqs last disabled at (24263): [<c0a7da00>] _raw_spin_lock_irqsave+0x1c/0x98
      [    5.925143] softirqs last  enabled at (24258): [<c022a7fc>] irq_enter+0x84/0x98
      [    5.932524] softirqs last disabled at (24259): [<c022a918>] irq_exit+0x108/0x16c
      [    5.939985]
      [    5.939985] other info that might help us debug this:
      [    5.946576]  Possible unsafe locking scenario:
      [    5.946576]
      [    5.952556]        CPU0
      [    5.955031]        ----
      [    5.957506]   lock(&syncp->seq#2);
      [    5.960955]   <Interrupt>
      [    5.963604]     lock(&syncp->seq#2);
      [    5.967227]
      [    5.967227]  *** DEADLOCK ***
      [    5.967227]
      [    5.973222] 1 lock held by swapper/0/0:
      [    5.977092]  #0:  (&(&ring->lock)->rlock){..-...}, at: [<c0768a18>] bcm_sysport_tx_reclaim+0x20/0x54
      So just remove the u64_stats_update_begin()/end() pair in ndo_get_stats64()
      since it does not appear to be useful for anything. No inconsistency was
      observed with either ifconfig or ethtool, global TX counts equal the sum of
      per-queue TX counts on a 32-bit architecture.
      Fixes: 10377ba7 ("net: systemport: Support 64bit statistics")
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Arnd Bergmann's avatar
      net: vrf: avoid gcc-4.6 warning · ecf09117
      Arnd Bergmann authored
      When building an allmodconfig kernel with gcc-4.6, we get a rather
      odd warning:
      drivers/net/vrf.c: In function ‘vrf_ip6_input_dst’:
      drivers/net/vrf.c:964:3: error: initialized field with side-effects overwritten [-Werror]
      drivers/net/vrf.c:964:3: error: (near initialization for ‘fl6’) [-Werror]
      I have no idea what this warning is even trying to say, but it does
      seem like a false positive. Reordering the initialization in to match
      the structure definition gets rid of the warning, and might also avoid
      whatever gcc thinks is wrong here.
      Fixes: 9ff74384 ("net: vrf: Handle ipv6 multicast and link-local addresses")
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Himanshu Jha's avatar
      qed: remove unnecessary call to memset · 4739df62
      Himanshu Jha authored
      call to memset to assign 0 value immediately after allocating
      memory with kzalloc is unnecesaary as kzalloc allocates the memory
      filled with 0 value.
      Semantic patch used to resolve this issue:
      expression e,e2; constant c;
      statement S;
        e = kzalloc(e2, c);
        if(e == NULL) S
      - memset(e, 0, e2);
      Signed-off-by: default avatarHimanshu Jha <himanshujha199640@gmail.com>
      Signed-off-by: default avatarHimanshu Jha <himanshujha199640@gmail.com>
      Acked-by: default avatarSudarsana Kalluru <sudarsana.kalluru@cavium.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Linus Torvalds's avatar
      Merge tag 'firmware_removal-4.14-rc1' of... · b38923a0
      Linus Torvalds authored
      Merge tag 'firmware_removal-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
      Pull firmware removal from Greg KH:
       "Many many years ago (at the kernel summit in Boston), we all came to
        the agreement that the firmware/ tree should be dropped from the
        kernel, and everyone use the linux-firmware package instead. For some
        minor reason, David Woodhouse didn't send the pull request at that
        point in time, and everyone forgot about this.
        The topic came up in the hallway track at the Plumbers conference this
        week, so here's a single patch that drops the whole firmware tree. The
        last firmware update was back in 2013, and all distros have been using
        linux-firmware instead since at least that year, if not before. The
        only commits to that directory since 2013 was some kbuild fixups for
        various build tool issues.
        So lets finally drop this, we don't need to lug them around in the
        kernel source tree anymore, especially as no one wants or uses them.
        This has passed build testing with 0-day, I don't think it made it
        into linux-next this week, but I figured it was good to get in before
        4.14-rc1 was out"
      * tag 'firmware_removal-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
        firmware: delete in-kernel firmware
    • Linus Torvalds's avatar
      Merge tag 'nios2-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2 · 866a30ef
      Linus Torvalds authored
      Pull arch/nios2 update from Ley Foon Tan.
      * tag 'nios2-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
        nios2: time: Read timer in get_cycles only if initialized
        nios2: add earlycon support to 3c120 devboard DTS
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 418702b9
      Linus Torvalds authored
      Pull powerpc fix from Michael Ellerman:
       "Just one fix, for the handling of alignment interrupts on dcbz
        Thanks to Paul Mackerras, Christian Zigotzky, Michal Sojka"
      * tag 'powerpc-4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Fix handling of alignment interrupt on dcbz instruction