Commit Graph

525396 Commits

Author SHA1 Message Date
Linus Torvalds
5262f25f09 HSI changes for the v4.2 series
* misc. fixes
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Merge tag 'hsi-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi

Pull HSI updates from Sebastian Reichel:
 "Misc fixes"

* tag 'hsi-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: nokia-modem: use flags argument of devm_gpiod_get to set direction
  HSI: nokia-modem: Reduce missing driver message to debug level
  HSI: cmt_speech: fix timestamp interface
2015-06-23 16:05:37 -07:00
Linus Torvalds
acd53127c4 SCSI misc on 20150622
This is the usual grab bag of driver updates (lpfc, hpsa,
 megaraid_sas, cxgbi, be2iscsi) plus an assortment of minor updates.
 There are also one new driver: the Cisco snic; the advansys driver has
 been rewritten to get rid of the warning about converting it to the
 DMA API, the tape statistics patch got in and finally, there's a
 resuffle of SCSI header files to separate more cleanly initiator from
 target mode (and better share the common definitions).
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is the usual grab bag of driver updates (lpfc, hpsa,
  megaraid_sas, cxgbi, be2iscsi) plus an assortment of minor updates.

  There is also one new driver: the Cisco snic.  The advansys driver has
  been rewritten to get rid of the warning about converting it to the
  DMA API, the tape statistics patch got in and finally, there's a
  resuffle of SCSI header files to separate more cleanly initiator from
  target mode (and better share the common definitions)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (156 commits)
  snic: driver for Cisco SCSI HBA
  qla2xxx: Fix indentation
  qla2xxx: Comment out unreachable code
  fusion: remove dead MTRR code
  advansys: fix compilation errors and warnings when CONFIG_PCI is not set
  mptsas: fix depth param in scsi_track_queue_full
  megaraid: fix irq setup process regression
  lpfc: Update version to 10.7.0.0 for upstream patch set.
  lpfc: Fix to drop PLOGIs from fabric node till LOGO processing completes
  lpfc: Fix scsi task management error message.
  lpfc: Fix cq_id masking problem.
  lpfc: Fix scsi prep dma buf error.
  lpfc: Add support for using block multi-queue
  lpfc: Devices are not discovered during takeaway/giveback testing
  lpfc: Fix vport deletion failure.
  lpfc: Check for active portpeerbeacon.
  lpfc: Update driver version for upstream patch set 10.6.0.1.
  lpfc: Change buffer pool empty message to miscellaneous category
  lpfc: Fix incorrect log message reported for empty FCF record.
  lpfc: Fix rport leak.
  ...
2015-06-23 15:55:44 -07:00
Linus Torvalds
f9d1b5a31a Changes for 4.2
- A large cleanup of how device capabilities are checked for various
   features
 - Additional cleanups in the MAD processing
 - Update to the srp driver
 - Creation and use of centralized log message helpers
 - Add const to a number of args to calls and clean up call chain
 - Add support for extended cq create verb
 - Add support for timestamps on cq completion
 - Add support for processing OPA MAD packets
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma updates from Doug Ledford:

 - a large cleanup of how device capabilities are checked for various
   features

 - additional cleanups in the MAD processing

 - update to the srp driver

 - creation and use of centralized log message helpers

 - add const to a number of args to calls and clean up call chain

 - add support for extended cq create verb

 - add support for timestamps on cq completion

 - add support for processing OPA MAD packets

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (92 commits)
  IB/mad: Add final OPA MAD processing
  IB/mad: Add partial Intel OPA MAD support
  IB/mad: Add partial Intel OPA MAD support
  IB/core: Add OPA MAD core capability flag
  IB/mad: Add support for additional MAD info to/from drivers
  IB/mad: Convert allocations from kmem_cache to kzalloc
  IB/core: Add ability for drivers to report an alternate MAD size.
  IB/mad: Support alternate Base Versions when creating MADs
  IB/mad: Create a generic helper for DR forwarding checks
  IB/mad: Create a generic helper for DR SMP Recv processing
  IB/mad: Create a generic helper for DR SMP Send processing
  IB/mad: Split IB SMI handling from MAD Recv handler
  IB/mad cleanup: Generalize processing of MAD data
  IB/mad cleanup: Clean up function params -- find_mad_agent
  IB/mlx4: Add support for CQ time-stamping
  IB/mlx4: Add mmap call to map the hardware clock
  IB/core: Pass hardware specific data in query_device
  IB/core: Add timestamp_mask and hca_core_clock to query_device
  IB/core: Extend ib_uverbs_create_cq
  IB/core: Add CQ creation time-stamping flag
  ...
2015-06-23 15:53:26 -07:00
Linus Torvalds
2ad7b44f5d Merge branch 'for-linus-clk' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull clkdev updates from Russell King:
 "This series addresses some breakage in clkdev caused by a previous
  patch set from the clk tree which introduced per-user clk structures.
  This basically renamed the existing 'struct clk' to 'struct clk_hw',
  and introduced a new 'struct clk'.

  This change will break anyone using clk_add_alias() with the common
  clk code enabled.  Thankfully, the intersection of users of
  clk_add_alias() and those using the common clk code is practically
  zero, but this is something which should be fixed to keep the code
  sane.

  The problem is that clk_add_alias() does this:

        r = clk_get(...);
        l = clkdev_alloc(r, ...);
        clk_put(...);

  which causes the alias to store a pointer to 'r', which has been
  freed.

  The original patch set tried to work around this problem incorrectly -
  at clk_get() time, it tried to convert the struct clk to a struct
  clk_hw, and then creating a new struct clk from that.  Clearly, if the
  original struct clk has been freed, then we have a use-after-free bug.

  We have other places in the tree which do something similar, so this
  series also addresses those locations too.

  This series addresses this problem by converting clkdev to store and
  use the clk_hw pointer.  This allows clk_get() to only have to create
  it's per-user struct clk from the clk_hw.  We can also get to the
  desired clk_hw at clk_add_alias() or clk lookup creation time, when
  the struct clk is "alive".

  We also perform some cleanups of the code:

   - replacing looped calls to clkdev_add() with clkdev_add_table()

   - replacing open-coded lookup allocation (which should have been
     using clkdev_alloc()) and subsequent clkdev_add() with
     clkdev_create()

   - replacing open-coded clk_add_alias() with clk_add_alias()"

* 'for-linus-clk' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  clk: s2mps11: use clkdev_create()
  ASoC: migor: use clkdev_create()
  ARM: omap2: use clkdev_add_alias()
  ARM: omap2: use clkdev_create()
  ARM: orion: use clkdev_create()
  ARM: lpc32xx: convert to use clkdev_add_table()
  SH: use clkdev_add_table()
  clkdev: add clkdev_create() helper
  clkdev: const-ify connection id to clk_add_alias()
  clkdev: get rid of redundant clk_add_alias() prototype in linux/clk.h
  clkdev: drop __init from clkdev_add_table()
  clk: update clk API documentation to clarify clk_round_rate()
  clkdev: use clk_hw internally
2015-06-23 15:50:46 -07:00
Linus Torvalds
43c9fad942 Power management and ACPI material for v4.2-rc1
- ACPICA update to upstream revision 20150515 including basic
    support for ACPI 6 features: new ACPI tables introduced by
    ACPI 6 (STAO, XENV, WPBT, NFIT, IORT), changes related to the
    other tables (DTRM, FADT, LPIT, MADT), new predefined names
    (_BTH, _CR3, _DSD, _LPI, _MTL, _PRR, _RDI, _RST, _TFP, _TSN),
    fixes and cleanups (Bob Moore, Lv Zheng).
 
  - ACPI device power management core code update to follow ACPI 6
    which reflects the ACPI device power management implementation
    in Windows (Rafael J Wysocki).
 
  - Rework of the backlight interface selection logic to reduce the
    number of kernel command line options and improve the handling
    of DMI quirks that may be involved in that and to make the
    code generally more straightforward (Hans de Goede).
 
  - Fixes for the ACPI Embedded Controller (EC) driver related to
    the handling of EC transactions (Lv Zheng).
 
  - Fix for a regression related to the ACPI resources management
    and resulting from a recent change of ACPI initialization code
    ordering (Rafael J Wysocki).
 
  - Fix for a system initialization regression related to ACPI
    introduced during the 3.14 cycle and caused by running the
    code that switches the platform over to the ACPI mode too
    early in the initialization sequence (Rafael J Wysocki).
 
  - Support for the ACPI _CCA device configuration object related
    to DMA cache coherence (Suravee Suthikulpanit).
 
  - ACPI/APEI fixes and cleanups (Jiri Kosina, Borislav Petkov).
 
  - ACPI battery driver cleanups (Luis Henriques, Mathias Krause).
 
  - ACPI processor driver cleanups (Hanjun Guo).
 
  - Cleanups and documentation update related to the ACPI device
    properties interface based on _DSD (Rafael J Wysocki).
 
  - ACPI device power management fixes (Rafael J Wysocki).
 
  - Assorted cleanups related to ACPI (Dominik Brodowski. Fabian
    Frederick, Lorenzo Pieralisi, Mathias Krause, Rafael J Wysocki).
 
  - Fix for a long-standing issue causing General Protection Faults
    to be generated occasionally on return to user space after resume
    from ACPI-based suspend-to-RAM on 32-bit x86 (Ingo Molnar).
 
  - Fix to make the suspend core code return -EBUSY consistently in
    all cases when system suspend is aborted due to wakeup detection
    (Ruchi Kandoi).
 
  - Support for automated device wakeup IRQ handling allowing drivers
    to make their PM support more starightforward (Tony Lindgren).
 
  - New tracepoints for suspend-to-idle tracing and rework of the
    prepare/complete callbacks tracing in the PM core (Todd E Brandt,
    Rafael J Wysocki).
 
  - Wakeup sources framework enhancements (Jin Qian).
 
  - New macro for noirq system PM callbacks (Grygorii Strashko).
 
  - Assorted cleanups related to system suspend (Rafael J Wysocki).
 
  - cpuidle core cleanups to make the code more efficient (Rafael J
    Wysocki).
 
  - powernv/pseries cpuidle driver update (Shilpasri G Bhat).
 
  - cpufreq core fixes related to CPU online/offline that should
    reduce the overhead of these operations quite a bit, unless the
    CPU in question is physically going away (Viresh Kumar, Saravana
    Kannan).
 
  - Serialization of cpufreq governor callbacks to avoid race
    conditions in some cases (Viresh Kumar).
 
  - intel_pstate driver fixes and cleanups (Doug Smythies, Prarit
    Bhargava, Joe Konno).
 
  - cpufreq driver (arm_big_little, cpufreq-dt, qoriq) updates (Sudeep
    Holla, Felipe Balbi, Tang Yuantian).
 
  - Assorted cleanups in cpufreq drivers and core (Shailendra Verma,
    Fabian Frederick, Wang Long).
 
  - New Device Tree bindings for representing Operating Performance
    Points (Viresh Kumar).
 
  - Updates for the common clock operations support code in the PM
    core (Rajendra Nayak, Geert Uytterhoeven).
 
  - PM domains core code update (Geert Uytterhoeven).
 
  - Intel Knights Landing support for the RAPL (Running Average Power
    Limit) power capping driver (Dasaratharaman Chandramouli).
 
  - Fixes related to the floor frequency setting on Atom SoCs in the
    RAPL power capping driver (Ajay Thomas).
 
  - Runtime PM framework documentation update (Ben Dooks).
 
  - cpupower tool fix (Herton R Krzesinski).
 
 /
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Merge tag 'pm+acpi-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "The rework of backlight interface selection API from Hans de Goede
  stands out from the number of commits and the number of affected
  places perspective.  The cpufreq core fixes from Viresh Kumar are
  quite significant too as far as the number of commits goes and because
  they should reduce CPU online/offline overhead quite a bit in the
  majority of cases.

  From the new featues point of view, the ACPICA update (to upstream
  revision 20150515) adding support for new ACPI 6 material to ACPICA is
  the one that matters the most as some new significant features will be
  based on it going forward.  Also included is an update of the ACPI
  device power management core to follow ACPI 6 (which in turn reflects
  the Windows' device PM implementation), a PM core extension to support
  wakeup interrupts in a more generic way and support for the ACPI _CCA
  device configuration object.

  The rest is mostly fixes and cleanups all over and some documentation
  updates, including new DT bindings for Operating Performance Points.

  There is one fix for a regression introduced in the 4.1 cycle, but it
  adds quite a number of lines of code, it wasn't really ready before
  Thursday and you were on vacation, so I refrained from pushing it on
  the last minute for 4.1.

  Specifics:

   - ACPICA update to upstream revision 20150515 including basic support
     for ACPI 6 features: new ACPI tables introduced by ACPI 6 (STAO,
     XENV, WPBT, NFIT, IORT), changes related to the other tables (DTRM,
     FADT, LPIT, MADT), new predefined names (_BTH, _CR3, _DSD, _LPI,
     _MTL, _PRR, _RDI, _RST, _TFP, _TSN), fixes and cleanups (Bob Moore,
     Lv Zheng).

   - ACPI device power management core code update to follow ACPI 6
     which reflects the ACPI device power management implementation in
     Windows (Rafael J Wysocki).

   - rework of the backlight interface selection logic to reduce the
     number of kernel command line options and improve the handling of
     DMI quirks that may be involved in that and to make the code
     generally more straightforward (Hans de Goede).

   - fixes for the ACPI Embedded Controller (EC) driver related to the
     handling of EC transactions (Lv Zheng).

   - fix for a regression related to the ACPI resources management and
     resulting from a recent change of ACPI initialization code ordering
     (Rafael J Wysocki).

   - fix for a system initialization regression related to ACPI
     introduced during the 3.14 cycle and caused by running the code
     that switches the platform over to the ACPI mode too early in the
     initialization sequence (Rafael J Wysocki).

   - support for the ACPI _CCA device configuration object related to
     DMA cache coherence (Suravee Suthikulpanit).

   - ACPI/APEI fixes and cleanups (Jiri Kosina, Borislav Petkov).

   - ACPI battery driver cleanups (Luis Henriques, Mathias Krause).

   - ACPI processor driver cleanups (Hanjun Guo).

   - cleanups and documentation update related to the ACPI device
     properties interface based on _DSD (Rafael J Wysocki).

   - ACPI device power management fixes (Rafael J Wysocki).

   - assorted cleanups related to ACPI (Dominik Brodowski, Fabian
     Frederick, Lorenzo Pieralisi, Mathias Krause, Rafael J Wysocki).

   - fix for a long-standing issue causing General Protection Faults to
     be generated occasionally on return to user space after resume from
     ACPI-based suspend-to-RAM on 32-bit x86 (Ingo Molnar).

   - fix to make the suspend core code return -EBUSY consistently in all
     cases when system suspend is aborted due to wakeup detection (Ruchi
     Kandoi).

   - support for automated device wakeup IRQ handling allowing drivers
     to make their PM support more starightforward (Tony Lindgren).

   - new tracepoints for suspend-to-idle tracing and rework of the
     prepare/complete callbacks tracing in the PM core (Todd E Brandt,
     Rafael J Wysocki).

   - wakeup sources framework enhancements (Jin Qian).

   - new macro for noirq system PM callbacks (Grygorii Strashko).

   - assorted cleanups related to system suspend (Rafael J Wysocki).

   - cpuidle core cleanups to make the code more efficient (Rafael J
     Wysocki).

   - powernv/pseries cpuidle driver update (Shilpasri G Bhat).

   - cpufreq core fixes related to CPU online/offline that should reduce
     the overhead of these operations quite a bit, unless the CPU in
     question is physically going away (Viresh Kumar, Saravana Kannan).

   - serialization of cpufreq governor callbacks to avoid race
     conditions in some cases (Viresh Kumar).

   - intel_pstate driver fixes and cleanups (Doug Smythies, Prarit
     Bhargava, Joe Konno).

   - cpufreq driver (arm_big_little, cpufreq-dt, qoriq) updates (Sudeep
     Holla, Felipe Balbi, Tang Yuantian).

   - assorted cleanups in cpufreq drivers and core (Shailendra Verma,
     Fabian Frederick, Wang Long).

   - new Device Tree bindings for representing Operating Performance
     Points (Viresh Kumar).

   - updates for the common clock operations support code in the PM core
     (Rajendra Nayak, Geert Uytterhoeven).

   - PM domains core code update (Geert Uytterhoeven).

   - Intel Knights Landing support for the RAPL (Running Average Power
     Limit) power capping driver (Dasaratharaman Chandramouli).

   - fixes related to the floor frequency setting on Atom SoCs in the
     RAPL power capping driver (Ajay Thomas).

   - runtime PM framework documentation update (Ben Dooks).

   - cpupower tool fix (Herton R Krzesinski)"

* tag 'pm+acpi-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (194 commits)
  cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state
  x86: Load __USER_DS into DS/ES after resume
  PM / OPP: Add binding for 'opp-suspend'
  PM / OPP: Allow multiple OPP tables to be passed via DT
  PM / OPP: Add new bindings to address shortcomings of existing bindings
  ACPI: Constify ACPI device IDs in documentation
  ACPI / enumeration: Document the rules regarding the PRP0001 device ID
  ACPI / video: Make acpi_video_unregister_backlight() private
  acpi-video-detect: Remove old API
  toshiba-acpi: Port to new backlight interface selection API
  thinkpad-acpi: Port to new backlight interface selection API
  sony-laptop: Port to new backlight interface selection API
  samsung-laptop: Port to new backlight interface selection API
  msi-wmi: Port to new backlight interface selection API
  msi-laptop: Port to new backlight interface selection API
  intel-oaktrail: Port to new backlight interface selection API
  ideapad-laptop: Port to new backlight interface selection API
  fujitsu-laptop: Port to new backlight interface selection API
  eeepc-laptop: Port to new backlight interface selection API
  dell-wmi: Port to new backlight interface selection API
  ...
2015-06-23 14:18:07 -07:00
Linus Torvalds
cb8a4deaf9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "As usual, mostly comment, kerneldoc and printk() fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  lpfc: Grammar s/an negative/a negative/
  ARM: lib/lib1funcs.S: fix typo s/substractions/subtractions/
  cx25821: cx25821-medusa-reg.h: fix 0x0x prefix
  lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants
  rapidio: Fix kerneldoc and comment
  qla4xxx: Fix printk() in qla4_83xx_read_reset_template() and qla4_83xx_pre_loopback_config()
  treewide: Kconfig: fix wording / spelling
  usb/serial: fix grammar in Kconfig help text for FTDI_SIO
  megaraid_sas: fix kerneldoc
  netfilter: ebtables: fix comment grammar
  drm/radeon: fix comment
  isdn: fix grammar in comment
  ARM: KVM: fix comment
2015-06-23 14:08:54 -07:00
Linus Torvalds
0faef837e4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching fixes from Jiri Kosina:

 - symbol lookup locking fix, from Miroslav Benes

 - error handling improvements in case of failure of the module coming
   notifier, from Minfei Huang

 - we were too pessimistic when kASLR has been enabled on x86 and were
   dropping address hints on the floor unnecessarily in such case.  Fix
   from Jiri Kosina

 - a few other small fixes and cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: add module locking around kallsyms calls
  livepatch: annotate klp_init() with __init
  livepatch: introduce patch/func-walking helpers
  livepatch: make kobject in klp_object statically allocated
  livepatch: Prevent patch inconsistencies if the coming module notifier fails
  livepatch: match return value to function signature
  x86: kaslr: fix build due to missing ALIGN definition
  livepatch: x86: make kASLR logic more accurate
  x86: introduce kaslr_offset()
2015-06-23 14:07:26 -07:00
Linus Torvalds
67db8a8086 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:

 - spurious power/wakeup sysfs files removal for I2C-HID devices, from
   Andrew Duggan

 - Logitech M560 support, from Goffredo Baroncelli

 - a lot of housekeeping cleanups to hid-lg4ff driver, from Michal Maly

 - improved support for Plantronics devices, from Terry Junge

 - Sony Motion Controller and Navigation Controller support and
   subsequent cleanups of hid-sony driver, from Frank Praznik and Simon
   Wood

 - HW support improvements to the Wacom driver, from Jason Gerecke and
   Ping Cheng

 - assorted small cleanups and device ID additions all over the place

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (69 commits)
  HID: cypress: use swap() in cp_report_fixup()
  HID: microsoft: Add Surface Power Cover
  HID: hid-sony: Fix report descriptor for Navigation Controller
  HID: hid-sony: Navigation controller only has 1 LED and no rumble
  HID: hid-sony: Add BT support for Navigation Controller
  HID: wacom: Introduce new 'touch_input' device
  HID: wacom: Split apart 'wacom_setup_pentouch_input_capabilites'
  HID: wacom: Introduce a new WACOM_DEVICETYPE_PAD device_type
  HID: wacom: Treat features->device_type values as flags
  HID: wacom: Simplify 'wacom_update_name'
  HID: rmi: Disable populating F30 when the touchpad has physical buttons
  HID: plantronics: Update to map volume up/down controls
  HID: sony: PS Move fix report descriptor
  HID: sony: PS3 Move enable LEDs and Rumble via BT
  HID: sony: Add support PS3 Move Battery via BT
  HID: sony: Add quirk for MOTION_CONTROLLER_BT
  HID: sony: Support PS3 Move Controller when connected via Bluetooth
  HID: i2c-hid: Do not set the ACPI companion field in the HID device
  usb, HID: Remove Vernier devices from lsusb and hid_ignore_list
  HID: hidpp: Add driver for mouse logitech M560
  ...
2015-06-23 14:05:52 -07:00
Linus Torvalds
a394c6a0b3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia
Pull PCMCIA update from Dominik Brodowski:
 "A few PCMCIA fixes and cleanups are available in the PCMCIA tree.

  Most of them are trivial and self-explanatory.  Of particular note are
  the last three patches which add an important hardware quirk for
  Toshiba ToPIC95 sockets (or BIOS breakage on systems with these
  sockets), fix resource leaks in yenta_socket enable/disable call
  paths, and fix a regression caused by patch 1c6c9b1d9d since v4.0.

  Alan stated he is OK with me pushing this patch upstream.  Once it
  works out well in your tree, I will push it to stable for 4.0/4.1 as
  well"

* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia:
  pcmcia: do not break rsrc_nonstatic when handling anonymous cards
  pcmcia: Fix resource leaks in yenta_probe() and _close()
  Disable write buffering on Toshiba ToPIC95
  pcmcia: Convert dev_printk to dev_<level>
  pcmcia/vrc4171: Remove typedefs for enums and struct
  pcmcia: Remove typedef in structs and emum
  pcmcia: Remove typedef tuple_flags
  drivers: pcmcia: electra_cf.c fix checkpatch error and warnings
  drivers: pcmcia: ds.c fix checkpatch errors
  PCMCIA: Remove commented references to dead class_device_create_file()
  drivers/pcmcia/electra_cf.c: add missing iounmap and kfree
  pcmcia: replace open-coded ARRAY_SIZE with macro
2015-06-23 14:04:00 -07:00
Linus Torvalds
d8133356e9 PCI changes for the v4.2 merge window:
Enumeration
     - Move pci_ari_enabled() to global header (Alex Williamson)
     - Account for ARI in _PRT lookups (Alex Williamson)
     - Remove unused pci_scan_bus_parented() (Yijing Wang)
 
   Resource management
     - Use host bridge _CRS info on systems with >32 bit addressing (Bjorn Helgaas)
     - Use host bridge _CRS info on Foxconn K8M890-8237A (Bjorn Helgaas)
     - Fix pci_address_to_pio() conversion of CPU address to I/O port (Zhichang Yuan)
     - Add pci_bus_addr_t (Yinghai Lu)
 
   PCI device hotplug
     - Wait for pciehp command completion where necessary (Alex Williamson)
     - Drop pointless ACPI-based "slot detection" check (Rafael J. Wysocki)
     - Check ignore_hotplug for all downstream devices (Rafael J. Wysocki)
     - Propagate the "ignore hotplug" setting to parent (Rafael J. Wysocki)
     - Inline pciehp "handle event" functions into the ISR (Bjorn Helgaas)
     - Clean up pciehp debug logging (Bjorn Helgaas)
 
   Power management
     - Remove redundant PCIe port type checking (Yijing Wang)
     - Add dev->has_secondary_link to track downstream PCIe links (Yijing Wang)
     - Use dev->has_secondary_link to find downstream links for ASPM (Yijing Wang)
     - Drop __pci_disable_link_state() useless "force" parameter (Bjorn Helgaas)
     - Simplify Clock Power Management setting (Bjorn Helgaas)
 
   Virtualization
     - Add ACS quirks for Intel 9-series PCH root ports (Alex Williamson)
     - Add function 1 DMA alias quirk for Marvell 9120 (Sakari Ailus)
 
   MSI
     - Disable MSI at enumeration even if kernel doesn't support MSI (Michael S. Tsirkin)
     - Remove unused pci_msi_off() (Bjorn Helgaas)
     - Rename msi_set_enable(), msix_clear_and_set_ctrl() (Michael S.  Tsirkin)
     - Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl() (Michael S. Tsirkin)
     - Drop pci_msi_off() calls during probe (Michael S. Tsirkin)
 
   APM X-Gene host bridge driver
     - Add APM X-Gene v1 PCIe MSI/MSIX termination driver (Duc Dang)
     - Add APM X-Gene PCIe MSI DTS nodes (Duc Dang)
     - Disable Configuration Request Retry Status for v1 silicon (Duc Dang)
     - Allow config access to Root Port even when link is down (Duc Dang)
 
   Broadcom iProc host bridge driver
     - Allow override of device tree IRQ mapping function (Hauke Mehrtens)
     - Add BCMA PCIe driver (Hauke Mehrtens)
     - Directly add PCI resources (Hauke Mehrtens)
     - Free resource list after registration (Hauke Mehrtens)
 
   Freescale i.MX6 host bridge driver
     - Add speed change timeout message (Troy Kisky)
     - Rename imx6_pcie_start_link() to imx6_pcie_establish_link() (Bjorn Helgaas)
 
   Freescale Layerscape host bridge driver
     - Use dw_pcie_link_up() consistently (Bjorn Helgaas)
     - Factor out ls_pcie_establish_link() (Bjorn Helgaas)
 
   Marvell MVEBU host bridge driver
     - Remove mvebu_pcie_scan_bus() (Yijing Wang)
 
   NVIDIA Tegra host bridge driver
     - Remove tegra_pcie_scan_bus() (Yijing Wang)
 
   Synopsys DesignWare host bridge driver
     - Consolidate outbound iATU programming functions (Jisheng Zhang)
     - Use iATU0 for cfg and IO, iATU1 for MEM (Jisheng Zhang)
     - Add support for x8 links (Zhou Wang)
     - Wait for link to come up with consistent style (Bjorn Helgaas)
     - Use pci_scan_root_bus() for simplicity (Yijing Wang)
 
   TI DRA7xx host bridge driver
     - Use dw_pcie_link_up() consistently (Bjorn Helgaas)
 
   Miscellaneous
     - Include <linux/pci.h>, not <asm/pci.h> (Bjorn Helgaas)
     - Remove unnecessary #includes of <asm/pci.h> (Bjorn Helgaas)
     - Remove unused pcibios_select_root() (again) (Bjorn Helgaas)
     - Remove unused pci_dma_burst_advice() (Bjorn Helgaas)
     - xen/pcifront: Don't use deprecated function pci_scan_bus_parented() (Arnd Bergmann)
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Merge tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v4.2 merge window:

  Enumeration
    - Move pci_ari_enabled() to global header (Alex Williamson)
    - Account for ARI in _PRT lookups (Alex Williamson)
    - Remove unused pci_scan_bus_parented() (Yijing Wang)

  Resource management
    - Use host bridge _CRS info on systems with >32 bit addressing (Bjorn Helgaas)
    - Use host bridge _CRS info on Foxconn K8M890-8237A (Bjorn Helgaas)
    - Fix pci_address_to_pio() conversion of CPU address to I/O port (Zhichang Yuan)
    - Add pci_bus_addr_t (Yinghai Lu)

  PCI device hotplug
    - Wait for pciehp command completion where necessary (Alex Williamson)
    - Drop pointless ACPI-based "slot detection" check (Rafael J. Wysocki)
    - Check ignore_hotplug for all downstream devices (Rafael J. Wysocki)
    - Propagate the "ignore hotplug" setting to parent (Rafael J. Wysocki)
    - Inline pciehp "handle event" functions into the ISR (Bjorn Helgaas)
    - Clean up pciehp debug logging (Bjorn Helgaas)

  Power management
    - Remove redundant PCIe port type checking (Yijing Wang)
    - Add dev->has_secondary_link to track downstream PCIe links (Yijing Wang)
    - Use dev->has_secondary_link to find downstream links for ASPM (Yijing Wang)
    - Drop __pci_disable_link_state() useless "force" parameter (Bjorn Helgaas)
    - Simplify Clock Power Management setting (Bjorn Helgaas)

  Virtualization
    - Add ACS quirks for Intel 9-series PCH root ports (Alex Williamson)
    - Add function 1 DMA alias quirk for Marvell 9120 (Sakari Ailus)

  MSI
    - Disable MSI at enumeration even if kernel doesn't support MSI (Michael S. Tsirkin)
    - Remove unused pci_msi_off() (Bjorn Helgaas)
    - Rename msi_set_enable(), msix_clear_and_set_ctrl() (Michael S.  Tsirkin)
    - Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl() (Michael S. Tsirkin)
    - Drop pci_msi_off() calls during probe (Michael S. Tsirkin)

  APM X-Gene host bridge driver
    - Add APM X-Gene v1 PCIe MSI/MSIX termination driver (Duc Dang)
    - Add APM X-Gene PCIe MSI DTS nodes (Duc Dang)
    - Disable Configuration Request Retry Status for v1 silicon (Duc Dang)
    - Allow config access to Root Port even when link is down (Duc Dang)

  Broadcom iProc host bridge driver
    - Allow override of device tree IRQ mapping function (Hauke Mehrtens)
    - Add BCMA PCIe driver (Hauke Mehrtens)
    - Directly add PCI resources (Hauke Mehrtens)
    - Free resource list after registration (Hauke Mehrtens)

  Freescale i.MX6 host bridge driver
    - Add speed change timeout message (Troy Kisky)
    - Rename imx6_pcie_start_link() to imx6_pcie_establish_link() (Bjorn Helgaas)

  Freescale Layerscape host bridge driver
    - Use dw_pcie_link_up() consistently (Bjorn Helgaas)
    - Factor out ls_pcie_establish_link() (Bjorn Helgaas)

  Marvell MVEBU host bridge driver
    - Remove mvebu_pcie_scan_bus() (Yijing Wang)

  NVIDIA Tegra host bridge driver
    - Remove tegra_pcie_scan_bus() (Yijing Wang)

  Synopsys DesignWare host bridge driver
    - Consolidate outbound iATU programming functions (Jisheng Zhang)
    - Use iATU0 for cfg and IO, iATU1 for MEM (Jisheng Zhang)
    - Add support for x8 links (Zhou Wang)
    - Wait for link to come up with consistent style (Bjorn Helgaas)
    - Use pci_scan_root_bus() for simplicity (Yijing Wang)

  TI DRA7xx host bridge driver
    - Use dw_pcie_link_up() consistently (Bjorn Helgaas)

  Miscellaneous
    - Include <linux/pci.h>, not <asm/pci.h> (Bjorn Helgaas)
    - Remove unnecessary #includes of <asm/pci.h> (Bjorn Helgaas)
    - Remove unused pcibios_select_root() (again) (Bjorn Helgaas)
    - Remove unused pci_dma_burst_advice() (Bjorn Helgaas)
    - xen/pcifront: Don't use deprecated function pci_scan_bus_parented() (Arnd Bergmann)"

* tag 'pci-v4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (58 commits)
  PCI: pciehp: Inline the "handle event" functions into the ISR
  PCI: pciehp: Rename queue_interrupt_event() to pciehp_queue_interrupt_event()
  PCI: pciehp: Make queue_interrupt_event() void
  PCI: xgene: Allow config access to Root Port even when link is down
  PCI: xgene: Disable Configuration Request Retry Status for v1 silicon
  PCI: pciehp: Clean up debug logging
  x86/PCI: Use host bridge _CRS info on systems with >32 bit addressing
  PCI: imx6: Add #define PCIE_RC_LCSR
  PCI: imx6: Use "u32", not "uint32_t"
  PCI: Remove unused pci_scan_bus_parented()
  xen/pcifront: Don't use deprecated function pci_scan_bus_parented()
  PCI: imx6: Add speed change timeout message
  PCI/ASPM: Simplify Clock Power Management setting
  PCI: designware: Wait for link to come up with consistent style
  PCI: layerscape: Factor out ls_pcie_establish_link()
  PCI: layerscape: Use dw_pcie_link_up() consistently
  PCI: dra7xx: Use dw_pcie_link_up() consistently
  x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
  PCI: pciehp: Wait for hotplug command completion where necessary
  PCI: Remove unused pci_dma_burst_advice()
  ...
2015-06-23 13:41:24 -07:00
Linus Torvalds
234a56c80a hwmon changes for v4.2
- New driver for Microchip TC74
 - Support for ncpXXwf104 added to ntc_thermistor driver
 - Minor cleanup
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Merge tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - new driver for Microchip TC74

 - support for ncpXXwf104 added to ntc_thermistor driver

 - minor cleanup

* tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: add driver for Microchip TC74
  hwmon: (ntc_thermistor) Improve precision of resistance calculation
  hwmon: (ntc_thermistor) fix iio raw to microvolts conversion
  hwmon: (atxp1) Drop auto-detection
  hwmon: (atxp1) Drop FSF mailing address
  hwmon: Allow compile test of GPIO consumers if !GPIOLIB
  hwmon: (sht15) Constify platform_device_id
  hwmon: (max197) Constify platform_device_id
  hwmon: (ntc_thermistor) Add support for ncpXXwf104
2015-06-23 13:39:56 -07:00
Linus Torvalds
a57f14bac0 MMC core:
- Fix an error path in the mmc block layer
  - Fix PM domain attachment for the SDIO bus
  - Add support for driver strength selection
  - Increase a delay to let voltage stabilize
  - Add support for disabling write-protect detection
  - Add facility to support re-tuning
  - Re-tune and retry in the recovery path
  - Add reset option for SDIO
  - Consolidations and clean-ups
 
 MMC host:
  - Add Mediatek MMC driver
  - Constify platform_device_id for a couple of hosts
  - Fix modalias to make module auto-loading work for a couple of hosts
  - sdhci: Add support for sdhci-arasan4.9a
  - sdhci: Fix low memory corruption
  - sdhci: Restore behavior while creating OCR mask
  - sdhci: Add a callback to select drive strength
  - sdhci: Fix driver type B and D handling
  - sdhci: Add support for drive strength selection for SPT
  - sdhci: Enable HS400 for some Intel host controllers
  - sdhci: Convert to use the new re-tuning facility
  - sdhci: Various minor fixes and clean-ups
  - dw_mmc: Add support for hi6220
  - dw_mmc: Use core to handle absent write protect line
  - dw_mmc: Add support to switch voltage
  - tmio: Some fixes and modernizations
  - sh_mmcif: Improve clock rate calculation
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Merge tag 'mmc-v4.2' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "Here are the changes for MMC for v4.2.

  MMC core:
   - Fix an error path in the mmc block layer
   - Fix PM domain attachment for the SDIO bus
   - Add support for driver strength selection
   - Increase a delay to let voltage stabilize
   - Add support for disabling write-protect detection
   - Add facility to support re-tuning
   - Re-tune and retry in the recovery path
   - Add reset option for SDIO
   - Consolidations and clean-ups

  MMC host:
   - Add Mediatek MMC driver
   - Constify platform_device_id for a couple of hosts
   - Fix modalias to make module auto-loading work for a couple of hosts
   - sdhci: Add support for sdhci-arasan4.9a
   - sdhci: Fix low memory corruption
   - sdhci: Restore behavior while creating OCR mask
   - sdhci: Add a callback to select drive strength
   - sdhci: Fix driver type B and D handling
   - sdhci: Add support for drive strength selection for SPT
   - sdhci: Enable HS400 for some Intel host controllers
   - sdhci: Convert to use the new re-tuning facility
   - sdhci: Various minor fixes and clean-ups
   - dw_mmc: Add support for hi6220
   - dw_mmc: Use core to handle absent write protect line
   - dw_mmc: Add support to switch voltage
   - tmio: Some fixes and modernizations
   - sh_mmcif: Improve clock rate calculation"

* tag 'mmc-v4.2' of git://git.linaro.org/people/ulf.hansson/mmc: (98 commits)
  mmc: queue: prevent soft lockups on PREEMPT=n
  mmc: mediatek: Add PM support for MMC driver
  mmc: mediatek: Add Mediatek MMC driver
  mmc: dt-bindings: add Mediatek MMC bindings
  mmc: card: Fixup request missing in mmc_blk_issue_rw_rq
  mmc: sdhci: fix low memory corruption
  mmc: sdhci-pci: Change AMD SDHCI quirk application scope
  i2c-piix4: Use Macro for AMD CZ SMBus device ID
  pci_ids: Add AMD KERNCZ device ID support
  mmc: queue: use swap() in mmc_queue_thread()
  mmc: dw_mmc: insmod followed by rmmod will hung for eMMC
  mmc: sdhci: Restore behavior while creating OCR mask
  mmc: sdhci-pxav3: fix device wakeup initialization
  mmc: core: Attach PM domain prior probing of SDIO func driver
  mmc: core: Remove redundant ->power_restore() callback for SD
  mmc: core: Remove redundant ->power_restore() callback for MMC
  mmc: sdhci-bcm2835: Actually enable the clock
  mmc: sdhci-bcm2835: Clean up platform allocations if sdhci init fails.
  mmc: sdhci-of-esdhc: enable interrupt mode to detect card
  mmc: sdhci-esdhc-imx: add quirk SDHCI_QUIRK2_BROKEN_HS200 for imx6qdl
  ...
2015-06-23 13:38:04 -07:00
Linus Torvalds
10b4b096d0 This is the big bulk of GPIO changes queued for the v4.2
kernel series:
 
 - A big set of cleanups to the aged sysfs interface from
   Johan Hovold. To get these in, v4.1-rc3 was merged into
   the tree as the first patch in that series had to go
   into stable. This makes the locking much more fine-grained
   (get rid of the "big GPIO lock(s)" and store states in the
   GPIO descriptors.
 
 - Rename gpiod_[g|s]et_array() to gpiod_[g|s]et_array_value()
   to avoid confusions.
 
 - New drivers for:
   - NXP LPC18xx (currently LPC1850)
   - NetLogic XLP
   - Broadcom STB SoC's
   - Axis ETRAXFS
   - Zynq Ultrascale+ (subdriver)
 
 - ACPI:
   - Make it possible to retrieve GpioInt resources from
     a GPIO device using acpi_dev_gpio_irq_get()
   - Merge some dependent I2C changes exploiting this.
   - Support the ARM X-Gene GPIO standby driver.
 
 - Make it possible for the generic GPIO driver to read
   back the value set registers to reflect current
   status.
 
 - Loads of OMAP IRQ handling fixes.
 
 - Incremental improvements to Kona, max732x, OMAP, MXC, RCAR,
   PCA953x, STP-XWAY, PCF857x, Crystalcove, TB10x.
 
 - Janitorial (contification, checkpatch cleanups)
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Merge tag 'gpio-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull gpio updates from Linus Walleij:
 "This is the big bulk of GPIO changes queued for the v4.2 kernel
  series:

   - a big set of cleanups to the aged sysfs interface from Johan
     Hovold.  To get these in, v4.1-rc3 was merged into the tree as the
     first patch in that series had to go into stable.  This makes the
     locking much more fine-grained (get rid of the "big GPIO lock(s)"
     and store states in the GPIO descriptors.

   - rename gpiod_[g|s]et_array() to gpiod_[g|s]et_array_value() to
     avoid confusions.

   - New drivers for:
      * NXP LPC18xx (currently LPC1850)
      * NetLogic XLP
      * Broadcom STB SoC's
      * Axis ETRAXFS
      * Zynq Ultrascale+ (subdriver)

   - ACPI:
      * make it possible to retrieve GpioInt resources from a GPIO
        device using acpi_dev_gpio_irq_get()
      * merge some dependent I2C changes exploiting this.
      * support the ARM X-Gene GPIO standby driver.

   - make it possible for the generic GPIO driver to read back the value
     set registers to reflect current status.

   - loads of OMAP IRQ handling fixes.

   - incremental improvements to Kona, max732x, OMAP, MXC, RCAR,
     PCA953x, STP-XWAY, PCF857x, Crystalcove, TB10x.

   - janitorial (constification, checkpatch cleanups)"

* tag 'gpio-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (71 commits)
  gpio: Fix checkpatch.pl issues
  gpio: pcf857x: handle only enabled irqs
  gpio / ACPI: Return -EPROBE_DEFER if the gpiochip was not found
  GPIO / ACPI: export acpi_gpiochip_request(free)_interrupts for module use
  gpio: improve error reporting on own descriptors
  gpio: promote own request failure to pr_err()
  gpio: Added support to Zynq Ultrascale+ MPSoC
  gpio: add ETRAXFS GPIO driver
  fix documentation after renaming gpiod_set_array to gpiod_set_array_value
  gpio: Add GPIO support for Broadcom STB SoCs
  gpio: xgene: add ACPI support for APM X-Gene GPIO standby driver
  gpio: tb10x: Drop unneeded free_irq() call
  gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip
  gpio: stp-xway: Use the of_property_read_u32 helper
  gpio: pcf857x: Check for irq_set_irq_wake() failures
  gpio-stp-xway: Fix enabling the highest bit of the PHY LEDs
  gpio: Prevent an integer overflow in the pca953x driver
  gpio: omap: rework omap_gpio_irq_startup to handle current pin state properly
  gpio: omap: rework omap_gpio_request to touch only gpio specific registers
  gpio: omap: rework omap_x_irq_shutdown to touch only irqs specific registers
  ...
2015-06-23 13:34:02 -07:00
Linus Torvalds
c70c5fb2b9 pwm: Changes for v4.2-rc1
This has a couple of fixes for Atmel, Samsung and Broadcom drivers. Some
 preparatory patches for more upcoming Intel work is included as well.
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Merge tag 'pwm/for-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This has a couple of fixes for Atmel, Samsung and Broadcom drivers.

  Some preparatory patches for more upcoming Intel work is included as
  well"

* tag 'pwm/for-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: lpss: pci: Add support for Broxton platform
  pwm: bcm-kona: Don't set polarity in probe
  pwm: Add pwmchip_add_with_polarity() API
  pwm: atmel: Fix incorrect CDTY value after disabling
  pwm: atmel: Fix incorrect CDTY value after enabling
  pwm: samsung: Use MODULE_DEVICE_TABLE() to include OF modalias
  pwm: Add support to remove registered consumer lookup tables
2015-06-23 13:32:38 -07:00
Jens Freimann
f2ae45edbc KVM: s390: clear floating interrupt bitmap and parameters
commit 6d3da24141 ("KVM: s390: deliver floating interrupts in order
of priority") introduced a regression for the reset handling.

We don't clear the bitmap of pending floating interrupts
and interrupt parameters. This could result in stale interrupts
even after a reset. Let's fix this by clearing the pending bitmap
and the parameters for service and machine check interrupts.

Cc: stable@vger.kernel.org # 4.1
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-23 17:02:39 +02:00
David S. Miller
0a51f76e3c Merge branch 'xgene-next'
Suman Tripathi says:

====================
drivers: net: xgene: Fix the ACPI support for RGMII/SGMII0/XFI ethernet interfaces of APM X-Gene SoC.
====================

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:27 -07:00
Suman Tripathi
c2d33bdc66 drivers: net: xgene: Check for IS_ERR rather than NULL for clock.
This patches fixes the code to check for IS_ERR rather
than NULL for clock interface.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:21 -07:00
Suman Tripathi
822e34a48d drivers: net: xgene: Add ACPI support for SGMII0 and XFI1 interface of 2nd H/W version of APM X-Gene SoC ethernet controller.
This patch adds the ACPI support for SGMII0 and XFI1 interface of
2nd H/W version of APM X-Gene SoC ethernet controller.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:21 -07:00
Suman Tripathi
2c7be0ac56 drivers: net: xgene: Implement the backward compatibility with the old and new firmware w.r.t Tx completion IRQ interrupt.
This patch implements the backward compatibility with the old firmware where
the Tx completion IRQ interrupt was absent whereas incase of new firmware
the Tx completion IRQ interrupt is present.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:19 -07:00
Suman Tripathi
0738c54d63 drivers: net: xgene: Fix the ACPI support for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller.
This patch implements couple of fixes to support ACPI for RGMII/SGMII0/XFI
interface of APM X-Gene SoC ethernet controller driver. This patch uses
the _SUN acpi object to fetch the port-id information whereas the FDT uses
port-id binding for port-id information.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:18 -07:00
Noam Camus
0dd0770936 NET: Add ezchip ethernet driver
Simple LAN device for debug or management purposes.
Device supports interrupts for RX and TX(completion).
Device does not have DMA ability.

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Tal Zilcer <talz@ezchip.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:16:25 -07:00
Gilad Ben-Yossef
a076e6bfe7 rocker: call correct unregister function on error
Use the correct unregister function matching the register
function on the error path.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Fixes: c1beeef7a3 ("rocker: implement IPv4 fib offloading")
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:12:26 -07:00
Nimrod Andy
55dd275366 net: fec: init MAC prior to mii bus probe
Below case causes mii bus probe failed:
ifconfig eth0 down -> suspend/resume with Mega/fax mix off -> ifconfig eth0 up

In i.MX6SX/i.MX7D chip, Mega/fast mix off feature is supported that means most of
SOC power will be off including ENET MAC for power saving. Once ENET MAC power
off, all initialized MAC registers reset to default, so in the case, it must
init MAC prior to mii bus probe.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:10:47 -07:00
Anish Bhatt
42bcce87d7 dcb : Fix incorrect documentation for struct dcb_app
While IEEE and CEE use the same structure to store apps, the selector
and priority fields for both are different. Only the priority field is
explained, add documentation explaining how the selector field differs
for both.

cgdcbxd code shows an example of how selector fields differ.

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:00:41 -07:00
Scott Feldman
e9fdaec0e0 switchdev: change BUG_ON to WARN for attr set failure case
This particular BUG_ON condition was checking for attr set err in the
COMMIT phase, which isn't expected (it's a driver bug if PREPARE phase is
OK but COMMIT fails).  But BUG_ON() is too strong for this case, so change
to WARN().  BUG_ON() would be warranted if the system was corrupted beyond
repair, but this is not the case here.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:57:17 -07:00
David S. Miller
06baa3d0fb Merge branch 'switchdev-vlan'
Scott Feldman says:

====================
switchdev; add VLAN support for port's bridge_getlink

One more missing piece of the puzzle.  Add vlan dump support to switchdev
port's bridge_getlink.  iproute2 "bridge vlan show" cmd already knows how
to show the vlans installed on the bridge and the device , but (until now)
no one implemented the port vlan part of the netlink PF_BRIDGE:RTM_GETLINK
msg.  Before this patch, "bridge vlan show":

	$ bridge -c vlan show
	port    vlan ids
	sw1p1    30-34			<< bridge side vlans
		 57

	sw1p1				<< device side vlans (missing)

	sw1p2    57

	sw1p2

	sw1p3

	sw1p4

	br0     None

(When the port is bridged, the output repeats the vlan list for the vlans
on the bridge side of the port and the vlans on the device side of the
port.  The listing above show no vlans for the device side even though they
are installed).

After this patch:

	$ bridge -c vlan show
	port    vlan ids
	sw1p1    30-34			<< bridge side vlan
		 57

	sw1p1    30-34			<< device side vlans
		 57
		 3840 PVID

	sw1p2    57

	sw1p2    57
		 3840 PVID

	sw1p3    3842 PVID

	sw1p4    3843 PVID

	br0     None
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:56:32 -07:00
Scott Feldman
7d4f8d871a switchdev; add VLAN support for port's bridge_getlink
One more missing piece of the puzzle.  Add vlan dump support to switchdev
port's bridge_getlink.  iproute2 "bridge vlan show" cmd already knows how
to show the vlans installed on the bridge and the device , but (until now)
no one implemented the port vlan part of the netlink PF_BRIDGE:RTM_GETLINK
msg.  Before this patch, "bridge vlan show":

	$ bridge -c vlan show
	port    vlan ids
	sw1p1    30-34			<< bridge side vlans
		 57

	sw1p1				<< device side vlans (missing)

	sw1p2    57

	sw1p2

	sw1p3

	sw1p4

	br0     None

(When the port is bridged, the output repeats the vlan list for the vlans
on the bridge side of the port and the vlans on the device side of the
port.  The listing above show no vlans for the device side even though they
are installed).

After this patch:

	$ bridge -c vlan show
	port    vlan ids
	sw1p1    30-34			<< bridge side vlan
		 57

	sw1p1    30-34			<< device side vlans
		 57
		 3840 PVID

	sw1p2    57

	sw1p2    57
		 3840 PVID

	sw1p3    3842 PVID

	sw1p4    3843 PVID

	br0     None

I re-used ndo_dflt_bridge_getlink to add vlan fill call-back func.
switchdev support adds an obj dump for VLAN objects, using the same
call-back scheme as FDB dump.  Support included for both compressed and
un-compressed vlan dumps.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:56:18 -07:00
Scott Feldman
3e3a78b495 switchdev: rename vlan vid_start to vid_begin
Use vid_begin/end to be consistent with BRIDGE_VLAN_INFO_RANGE_BEGIN/END.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:56:18 -07:00
Maninder Singh
e8e85cc5eb packet: remove handling of tx_ring
Remove handling of tx_ring in prb_setup_retire_blk_timer
for TPACKET_V3 because init_prb_bdqc is called only for zero tx_ring
and thus prb_setup_retire_blk_timer for zero tx_ring only.

And also in functon init_prb_bdqc there is no usage of tx_ring.
Thus removing tx_ring from init_prb_bdqc.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Suggested-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:53:29 -07:00
Paul Gortmaker
138b15ed87 drivers/net: remove all references to obsolete Ethernet-HOWTO
This howto made sense in the 1990s when users had to manually configure
ISA cards with jumpers or vendor utilities, but with the implementation
of PCI it became increasingly less and less relevant, to the point where
it has been well over a decade since I last updated it.  And there is
no value in anyone else taking over updating it either.

However the references to it continue to spread as boiler plate text
from one Kconfig file into the next.  We are not doing end users any
favours by pointing them at this old document, so lets kill it with
fire, once and for all, to hopefully stop any further spread.

No code is changed in this commit, just Kconfig help text.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:50:35 -07:00
David S. Miller
69ae2f7acc Merge branch 'stmmac-rk3368'
Heiko Stuebner says:

====================
net: stmmac: dwmac-rk: add support for rk3368

Apart from small cleanups, this series provides support for the dwmac
on the new rk3368 ARM64 soc.

Tested on a R88 board using a RMII phy.

Changes since v1:
- Adapt to changes resulting from patch d42202dce0 ("net: stmmac:
dwmac-rk: Don't add function name in info or err messages")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:49:29 -07:00
Heiko Stübner
df558854cf net: stmmac: dwmac-rk: add rk3368-specific data
Add constants and callback functions for the dwmac on rk3368 socs.
As can be seen, the base structure is the same, only registers and
the bits in them moved slightly.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:49:26 -07:00
Heiko Stübner
0fb98db197 net: stmmac: dwmac-rk: abstract access to mac settings in GRF
The mac settings like RGMII/RMII, speeds etc are done in the so called
"General Register Files", contain numerous other settings as well and
always seem to change between Rockchip SoCs. Therefore abstract the
register accesses into a per-soc ops struct to make this reusable on
other Rockchip SoCs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:49:25 -07:00
Heiko Stübner
c48fa33c1f net: stmmac: dwmac-rk: Fix clk rate when provided by soc
The first iteration of the dwmac-rk support did access an intermediate
clock directly below the pll selector. This was removed in a subsequent
revision, but the clock and one invocation remained. This results in
the driver trying to set the rate of a non-existent clock when the soc
and not some external source provides the phy clock for RMII phys.

So set the rate of the correct clock and remove the remaining now
completely unused definition.

Fixes: 436f5ae08f9d ("GMAC: add driver for Rockchip RK3288 SoCs integrated GMAC")
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:49:24 -07:00
Heiko Stübner
059dab0833 net: stmmac: dwmac-rk: remove unused gpio register defines
In a first version the driver did want to do some gpio wiggling, which
of course never made it into the kernel, but somehow these register
defines where forgotten. Remove them, as they shouldn't be here.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:49:23 -07:00
David S. Miller
5b3f87dbc7 linux-can-fixes-for-4.1-20150621
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Merge tag 'linux-can-fixes-for-4.1-20150621' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
Oliver Hartkopp fixed a bug in the generic CAN frame handling code, which may
lead to loss of CAN frames. It was introduced during v4.1 development.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 gpg: Signature made Sun 21 Jun 2015 09:59:36 AM PDT using RSA key ID C9B5CFC7
2015-06-23 06:42:12 -07:00
Alexander Popov
26c0a14f34 net: fs_enet: Fix NETIF_F_SG feature for Freescale MPC5121
Commit 4fc9b87bae ("net: fs_enet: Implement NETIF_F_SG feature")
brings a trouble to Freescale MPC512x: a kernel oops happens
during sending non-linear sk_buff with .data not aligned by 4.

Log quotation:

Unable to handle kernel paging request for data at address 0xe467c000
Faulting instruction address: 0xc000cd44
Oops: Kernel access of bad area, sig: 11 [#1]
MPC512x generic
Modules linked in:
CPU: 0 PID: 984 Comm: kworker/0:1H Not tainted 4.1.0-rc8-00024-gbb16140 #2
Workqueue: rpciod rpc_async_schedule
task: cf364a50 ti: cf362000 task.ti: cf362000
NIP: c000cd44 LR: c000c720 CTR: 00000206
REGS: cf363ac0 TRAP: 0300   Not tainted  (4.1.0-rc8-00024-gbb16140)
MSR: 00009032 <EE,ME,IR,DR,RI>  CR: 42004082  XER: 00000000
DAR: e467c000 DSISR: 20000000
GPR00: c0279e24 cf363b70 cf364a50 e467c000 00000206 0000001f 00000001 00000001
GPR08: 00000000 e467c000 e46800be 000139a6 82002082 00000000 c002e46c cf3c3680
GPR16: c044cb30 c04b0000 cf363c48 00000000 00000001 fde0315c 00000000 0000000b
GPR24: 0000002c 000040be cf339aa0 0000000b 00000001 cf873210 00282f85 00000000
NIP [c000cd44] clean_dcache_range+0x1c/0x30
LR [c000c720] dma_direct_map_page+0x40/0x94
Call Trace:
[cf363b70] [cf339b60] 0xcf339b60 (unreliable)
[cf363b90] [c0279e24] fs_enet_start_xmit+0x1c8/0x42c
[cf363bd0] [c02ff710] dev_hard_start_xmit+0x2dc/0x3d4
[cf363c40] [c0319c60] sch_direct_xmit+0xcc/0x1cc
[cf363c70] [c02ff9c0] __dev_queue_xmit+0x1b8/0x47c
[cf363ca0] [c032a3e8] ip_finish_output+0x1fc/0x9a8
[cf363ce0] [c032c31c] ip_send_skb+0x1c/0xa4
[cf363cf0] [c035112c] udp_send_skb+0xe4/0x2e8
[cf363d10] [c0351368] udp_push_pending_frames+0x38/0x84
[cf363d20] [c03537b8] udp_sendpage+0x134/0x174
[cf363d70] [c0384fd4] xs_sendpages+0x21c/0x250
[cf363db0] [c03852bc] xs_udp_send_request+0x50/0xf8
[cf363de0] [c0382f08] xprt_transmit+0x64/0x280
[cf363e20] [c038017c] call_transmit+0x168/0x234
[cf363e40] [c0387918] __rpc_execute+0x88/0x2b0
[cf363e80] [c00296f8] process_one_work+0x124/0x2fc
[cf363ea0] [c0029a00] worker_thread+0x130/0x480
[cf363ef0] [c002e528] kthread+0xbc/0xd0
[cf363f40] [c000e4a8] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
7c70faa6 60630800 7c70fba6 4c00012c 4e800020 38a0001f 7c632878 7c832050
7c842a14 5484d97f 4d820020 7c8903a6 <7c00186c> 38630020 4200fff8 7c0004ac
---[ end trace c846c1eceb513c85 ]---

The reason:

MPC5121 FEC requires 4-byte alignment for TX data buffer and calls
tx_skb_align_workaround() for copying sk_buff with not aligned .data to a new
sk_buff with aligned one. But tx_skb_align_workaround() uses
skb_copy_from_linear_data() which doesn't work for non-linear sk_buff:
a new sk_buff has non-zero nr_frags and zero .data_len.

So improve the condition of calling tx_skb_align_workaround() and use
skb_linearize() in it.

Signed-off-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:39:04 -07:00
Andrew Lunn
db687a56e4 dsa: mv88x6xxx: Zero statistics counters
Zero the statistics counters when setting up the global
registers. Otherwise the counters will remain from the last boot if
the power has not been removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:37:17 -07:00
David S. Miller
824831fadc Merge branch 'dsa-mv88e6xxx-debugfs'
Andrew Lunn says:

====================
debugfs for mv88e6xxx

This patchset adds some debugfs files for seeing into a mv88e6xxx
family of switch chips.

DB   T/P  Vec State Addr
003  Port 008   7   00:22:02:00:18:44
003  Port 008   6   80:ee:73:83:60:27
005  Port 020   7   94:10:3e:80:bc:f3
0f8  Port 001   6   8e:25:13:53:44:de

This walks all possible entries, so is a bit slow, but is always
correct.

Target Port
   0   15
   1   15
   2   15
   3   15
   4   15
   5   15
   6   15
   7   15
   8   15
   9   15
-->snip<--
  31   15

A rather boring example, since i only have one switch here. But this shows
the routing between multiple switches.

    GLOBAL GLOBAL2   0    1    2    3    4    5    6
 0:  c804       0  1e4f 100f 100f 1e4f 1e0f  e07  e07
 1:    fe       0     3    3    3    3    3 c03e c03f
 2:     0    ffff     0    0    0    0    0    0    0
 3:     0    ffff  1721 1721 1721 1721 1721 1721 1721
 4:  6000     258   433  431  431  433  433 373f  433
 5:     0      ff     0    0    0    0    0    0    0
 6:  c000    1f0f  2026 2025 2023 3020 4020 501f 6020
 7:     0    707f     0    0    0    0    0    0    0
 8:     0    7800  2080 2080 2080 2080 2080 2080 2080
 9:     0    1600     1    1    1    1    1    1    1
 a:   148       0     0    0    0    0    0    0    0
 b:  4000    1000     1    2    4    8   10   20   40
 c:     0      7f     0    0    0    0    0    0    0
 d:  ffff     5f3     0    0    0    0    0    0    0
 e:  ffff       6     0    0    0    0    0    0    0
 f:  ffff     f00  dada dada dada dada dada dada dada
10:     0       0     0    0    0    0    0    0    0
11:     0       0     0    0    0    0    0    0    0
12:  5555       0     0    0    0    0    0    0    0
13:  5555       0    1a    0    0 1df0    0 1e07    0
14:  aaaa     400     0    0    0    0    0    0    0
15:  aaaa       0     0    0    0    0    0    0    0
16:  ffff       0  6011 6011 6011 6011   33   33    0
17:  ffff       0     0    0    0    0    0    0    0
18:  fa41    1844  3210 3210 3210 3210 3210 3210 3210
19:     0     1e1  7654 7654 7654 7654 7654 7654 7654
1a:  5550       0     0    0    0    0    0    0    0
1b:   1fb    f869  8000 8000 8000 8000 8000 8000 8000
1c:     0       0     0    0    0    0    0    0    0
1d:   c00       0     0    0    0    0    0    0    0
1e:     0       0     0    0    0    0    0    0    0
1f:     0       0     0    0    0    0    0    0    0

All the switch registers which are directly accessible.

      Statistic       Port  0  Port  1  Port  2  Port  3  Port  4  Port  5  Port 6
     in_good_octets:     2176        0        0  4263711        0   499540       0
      in_bad_octets:    46050        0        0    50196        0        0       0
         in_unicast:        0        0        0     7693        0     7691       0
      in_broadcasts:        0        0        0        0        0        3       0
      in_multicasts:       34        0        0        0        0       27       0
           in_pause:        0        0        0        0        0        0       0
       in_undersize:        0        0        0        0        0        0       0
       in_fragments:       45        0        0        2        0        0       0
        in_oversize:        0        0        0        0        0        0       0
          in_jabber:        0        0        0        0        0        0       0
        in_rx_error:        0        0        0        0        0        0       0
       in_fcs_error:      159        0        0       37        0        0       0
         out_octets:      808        0        0   496608      336  4267159       0
        out_unicast:        0        0        0     7691        0     7693       0
     out_broadcasts:        1        0        0        3        0        0       0
     out_multicasts:        9        0        0        6        4       34       0
          out_pause:        0        0        0        0        0        0       0
          excessive:        0        0        0        0        0        0       0
         collisions:        0        0        0        0        0        0       0
           deferred:        0        0        0        0        0        0       0
             single:        0        0        0        0        0        0       0
           multiple:        0        0        0        0        0        0       0
      out_fcs_error:        0        0        0        0        0        0       0
               late:        0        0        0        0        0        0       0
       hist_64bytes:       36        0        0     7577        0     7574       0
   hist_65_127bytes:       53        0        0      241        4      298       0
  hist_128_255bytes:       50        0        0       12        0       10       0
  hist_256_511bytes:       43        0        0        8        0        2       0
 hist_512_1023bytes:       18        0        0     7573        0     7564       0
hist_1024_max_bytes:        3        0        0       19        0        0       0
     sw_in_discards:        0        0        0        0        0        0       0
     sw_in_filtered:        0        0        0        0        0        0       0
    sw_out_filtered:       34        0        0     7693        0     7721       0

Of particular interest here is that you get to see all ports,
including the CPU port and any DSA ports. You cannot get statistics
for these ports via ethtool.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:51 -07:00
Andrew Lunn
56d95e2220 dsa: mv88x6xxx: Add debugfs interface for scratch registers
Allow the contents of the scratch registers to be shown in debugfs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:42 -07:00
Andrew Lunn
d35bd876af dsa: mv88x6xxx: Add debugfs interface for device map
The device map is used to route packets between cascaded switches.
Add dumping a switches device map via debugfs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:41 -07:00
Andrew Lunn
532c7a353f dsa: mv88x6xxx: Add debugfs interface for statistics
Allow the contents of the statistics counters to be shown in debugfs.
This is particularly useful for the cpu and dsa ports, which cannot be
seen using ethtools -S.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:41 -07:00
Andrew Lunn
80c4627b27 dsa: mv88x6xxx: Refactor getting a single statistic
Move the code to retrieve a statistics counter into a function of its
own, so it can later be reused.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:40 -07:00
Andrew Lunn
8a0a265d19 dsa: mv88e6xxx: Add debugfs interface for ATU
Dump the Address Translation Unit via a file in debugfs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:40 -07:00
Andrew Lunn
87c8cefb10 dsa: mv88e6xxx: Add debugfs interface for registers
Allow the contents of the registers to be shown in debugfs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:33:39 -07:00
Shreyas Bhatewara
45dac1d6ea vmxnet3: Changes for vmxnet3 adapter version 2 (fwd)
Make the driver understand adapter version 2.

Cc: Rachel Lunnon <rachel_lunnon@stormagic.com>
Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:26:01 -07:00
Shreyas Bhatewara
c41fcce997 vmxnet3: Fix memory leaks in rx path (fwd)
If rcd length was zero, the page used for frag was not being released. It
was being replaced with a newly allocated page. This change takes care
of that memory leak.

Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:26:00 -07:00
Shreyas Bhatewara
e9ba47bfe3 vmxnet3: Register shutdown handler for device (fwd)
Implement a handler for pci shutdown so that the driver has an
opportunity to make sure that device is quiesced before the PCI
switches to legacy IRQs. This way the possibility of
"screaming interrupt" is avoided.

Acked-by: Shrikrishna Khare <skhare@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:25:59 -07:00
Eric W. Biederman
8405a8fff3 netfilter: nf_qeueue: Drop queue entries on nf_unregister_hook
Add code to nf_unregister_hook to flush the nf_queue when a hook is
unregistered.  This guarantees that the pointer that the nf_queue code
retains into the nf_hook list will remain valid while a packet is
queued.

I tested what would happen if we do not flush queued packets and was
trivially able to obtain the oops below.  All that was required was
to stop the nf_queue listening process, to delete all of the nf_tables,
and to awaken the nf_queue listening process.

> BUG: unable to handle kernel paging request at 0000000100000001
> IP: [<0000000100000001>] 0x100000001
> PGD b9c35067 PUD 0
> Oops: 0010 [#1] SMP
> Modules linked in:
> CPU: 0 PID: 519 Comm: lt-nfqnl_test Not tainted
> task: ffff8800b9c8c050 ti: ffff8800ba9d8000 task.ti: ffff8800ba9d8000
> RIP: 0010:[<0000000100000001>]  [<0000000100000001>] 0x100000001
> RSP: 0018:ffff8800ba9dba40  EFLAGS: 00010a16
> RAX: ffff8800bab48a00 RBX: ffff8800ba9dba90 RCX: ffff8800ba9dba90
> RDX: ffff8800b9c10128 RSI: ffff8800ba940900 RDI: ffff8800bab48a00
> RBP: ffff8800b9c10128 R08: ffffffff82976660 R09: ffff8800ba9dbb28
> R10: dead000000100100 R11: dead000000200200 R12: ffff8800ba940900
> R13: ffffffff8313fd50 R14: ffff8800b9c95200 R15: 0000000000000000
> FS:  00007fb91fc34700(0000) GS:ffff8800bfa00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000100000001 CR3: 00000000babfb000 CR4: 00000000000007f0
> Stack:
>  ffffffff8206ab0f ffffffff82982240 ffff8800bab48a00 ffff8800b9c100a8
>  ffff8800b9c10100 0000000000000001 ffff8800ba940900 ffff8800b9c10128
>  ffffffff8206bd65 ffff8800bfb0d5e0 ffff8800bab48a00 0000000000014dc0
> Call Trace:
>  [<ffffffff8206ab0f>] ? nf_iterate+0x4f/0xa0
>  [<ffffffff8206bd65>] ? nf_reinject+0x125/0x190
>  [<ffffffff8206dee5>] ? nfqnl_recv_verdict+0x255/0x360
>  [<ffffffff81386290>] ? nla_parse+0x80/0xf0
>  [<ffffffff8206c42c>] ? nfnetlink_rcv_msg+0x13c/0x240
>  [<ffffffff811b2fec>] ? __memcg_kmem_get_cache+0x4c/0x150
>  [<ffffffff8206c2f0>] ? nfnl_lock+0x20/0x20
>  [<ffffffff82068159>] ? netlink_rcv_skb+0xa9/0xc0
>  [<ffffffff820677bf>] ? netlink_unicast+0x12f/0x1c0
>  [<ffffffff82067ade>] ? netlink_sendmsg+0x28e/0x650
>  [<ffffffff81fdd814>] ? sock_sendmsg+0x44/0x50
>  [<ffffffff81fde07b>] ? ___sys_sendmsg+0x2ab/0x2c0
>  [<ffffffff810e8f73>] ? __wake_up+0x43/0x70
>  [<ffffffff8141a134>] ? tty_write+0x1c4/0x2a0
>  [<ffffffff81fde9f4>] ? __sys_sendmsg+0x44/0x80
>  [<ffffffff823ff8d7>] ? system_call_fastpath+0x12/0x6a
> Code:  Bad RIP value.
> RIP  [<0000000100000001>] 0x100000001
>  RSP <ffff8800ba9dba40>
> CR2: 0000000100000001
> ---[ end trace 08eb65d42362793f ]---

Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:23:23 -07:00
Eric W. Biederman
fdab6a4cbd netfilter: nftables: Do not run chains in the wrong network namespace
Currenlty nf_tables chains added in one network namespace are being
run in all network namespace.  The issues are myriad with the simplest
being an unprivileged user can cause any network packets to be dropped.

Address this by simply not running nf_tables chains in the wrong
network namespace.

Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 06:23:22 -07:00