Commit Graph

633289 Commits

Author SHA1 Message Date
Pavel Shilovsky
de74025052 CIFS: Reset read oplock to NONE if we have mandatory locks after reopen
We are already doing the same thing for an ordinary open case:
we can't keep read oplock on a file if we have mandatory byte-range
locks because pagereading can conflict with these locks on a server.
Fix it by setting oplock level to NONE.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:59 -05:00
Pavel Shilovsky
f2cca6a7c9 CIFS: Fix persistent handles re-opening on reconnect
openFileList of tcon can be changed while cifs_reopen_file() is called
that can lead to an unexpected behavior when we return to the loop.
Fix this by introducing a temp list for keeping all file handles that
need to be reopen.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:55 -05:00
Sachin Prabhu
166cea4dc3 SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup
We split the rawntlmssp authentication into negotiate and
authencate parts. We also clean up the code and add helpers.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2016-10-13 19:48:34 -05:00
Sachin Prabhu
3baf1a7b92 SMB2: Separate Kerberos authentication from SMB2_sess_setup
Add helper functions and split Kerberos authentication off
SMB2_sess_setup.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2016-10-13 19:48:30 -05:00
Germano Percossi
cb978ac8b8 Expose cifs module parameters in sysfs
/sys/module/cifs/parameters should display the three
other module load time configuration settings for cifs.ko

Signed-off-by: Germano Percossi <germano.percossi@citrix.com>
Signed-off-by: Steve French <steve.french@primarydata.com>
2016-10-13 19:48:25 -05:00
Steve French
24df1483c2 Cleanup missing frees on some ioctls
Cleanup some missing mem frees on some cifs ioctls, and
clarify others to make more obvious that no data is returned.

CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
2016-10-13 19:48:20 -05:00
Steve French
834170c859 Enable previous version support
Add ioctl to query previous versions of file

Allows listing snapshots on files on SMB3 mounts.

Signed-off-by: Steve French <smfrench@gmail.com>
2016-10-13 19:48:11 -05:00
Steve French
18dd8e1a65 Do not send SMB3 SET_INFO request if nothing is changing
[CIFS] We had cases where we sent a SMB2/SMB3 setinfo request with all
timestamp (and DOS attribute) fields marked as 0 (ie do not change)
e.g. on chmod or chown.

Signed-off-by: Steve French <steve.french@primarydata.com>
CC: Stable <stable@vger.kernel.org>
2016-10-13 19:46:51 -05:00
Dmitry Torokhov
1134ca268e Merge branch 'next' into for-linus
Prepare second round of input updates for 4.9 merge window.
2016-10-13 17:23:40 -07:00
Linus Torvalds
40bd3a5f34 PCI changes for the v4.9 merge window:
Altera host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant platform_get_resource() return value check (Bjorn Helgaas)
     Rename altera_pcie_valid_config() to altera_pcie_valid_device() (Bjorn Helgaas)
     Simplify TLB_CFG_DW0 usage (Bjorn Helgaas)
     Simplify TLP_CFG_DW1 usage (Bjorn Helgaas)
 
   APM X-Gene host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Pass struct xgene_pcie_port to setup functions (Bjorn Helgaas)
     Add register accessors (Bjorn Helgaas)
 
   Axis ARTPEC-6 host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Add register accessors (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Remove unnecessary artpec6_pcie_link_up() (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Add resource name comments (Bjorn Helgaas)
 
   Broadcom iProc host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Set drvdata at end of probe function (Bjorn Helgaas)
     Validate CSR base in BCMA setup code (Bjorn Helgaas)
     Remove redundant null pointer checking (Bjorn Helgaas)
     Hard-code PCIe capability offset instead of searching (Bjorn Helgaas)
 
   Freescale i.MX6 host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove redundant of_node pointer (Bjorn Helgaas)
     Removed unused struct imx6_pcie.mem_base (Bjorn Helgaas)
     Pass struct imx6_pcie to PHY accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Reorder struct imx6_pcie (Bjorn Helgaas)
     Remove unused return values (Bjorn Helgaas)
 
   Freescale Layerscape host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant struct ls_pcie.dbi (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Move struct pcie_port setup to probe function (Bjorn Helgaas)
     Remove unused ls_add_pcie_port() platform_device arg (Bjorn Helgaas)
     Reorder struct ls_pcie (Bjorn Helgaas)
 
   HiSilicon host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Name private struct pointer "hisi_pcie" consistently (Bjorn Helgaas)
     Remove redundant struct hisi_pcie.reg_base (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Include register block base in PCIE_SYS_STATE4 address (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct hisi_pcie (Bjorn Helgaas)
 
   Marvell Aardvark host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     MAINTAINERS: Add DT binding to the Aardvark PCIe driver maintainer (Thomas Petazzoni)
 
   Marvell Armada host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Add local base pointer (Bjorn Helgaas)
     Remove redundant struct armada8k_pcie.base (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct armada8k_pcie (Bjorn Helgaas)
     MAINTAINERS: Add maintainer for the PCIe Marvell Armada 8K driver (Thomas Petazzoni)
 
   Marvell MVEBU host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Use existing of_node pointer (Bjorn Helgaas)
 
   NVIDIA Tegra host bridge driver
     Fix argument order in tegra_pcie_phy_disable() (Bjorn Helgaas)
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
 
   Qualcomm host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Remove redundant struct qcom_pcie.dbi (Bjorn Helgaas)
     Remove redundant struct qcom_pcie.dev (Bjorn Helgaas)
     Reorder struct qcom_pcie (Bjorn Helgaas)
 
   Renesas R-Car host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Remove unused rcar_pcie_get_resources() platform_device arg (Bjorn Helgaas)
     Remove DRV_NAME macro (Bjorn Helgaas)
     rcar-gen2: Add local struct device pointers (Bjorn Helgaas)
 
   Rockchip host bridge driver
     Remove unused platform data (Bjorn Helgaas)
     Indent "if" statement body (Dan Carpenter)
 
   Samsung Exynos host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Uninline register accessors (Bjorn Helgaas)
     Name private struct pointer "exynos_pcie" consistently (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct exynos_pcie (Bjorn Helgaas)
 
   ST Microelectronics SPEAr13xx host bridge driver
     Remove unused constants (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Reorder struct spear13xx_pcie (Bjorn Helgaas)
     Clean up struct device usage (Bjorn Helgaas)
 
   Synopsys DesignWare host bridge driver
     Rename dw_pcie_valid_config() to dw_pcie_valid_device() (Bjorn Helgaas)
     Simplify pcie_host_ops.readl_rc() and .writel_rc() interfaces (Bjorn Helgaas)
     Swap order of dw_pcie_writel_rc() reg/val arguments (Bjorn Helgaas)
     Export dw_pcie_readl_rc(), dw_pcie_writel_rc() (Bjorn Helgaas)
     Uninline register accessors (Bjorn Helgaas)
     Simplify dw_pcie_readl_unroll(), dw_pcie_writel_unroll() (Kishon Vijay Abraham I)
     Swap order of dw_pcie_writel_unroll() reg/val arguments (Bjorn Helgaas)
     designware-plat: Remove redundant dw_plat_pcie.mem_base (Bjorn Helgaas)
     designware-plat: Add local struct device pointers (Bjorn Helgaas)
     designware-plat: Remove unused platform data (Bjorn Helgaas)
 
   TI DRA7xx host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove redundant struct device pointer from dra7xx_pcie (Bjorn Helgaas)
     Set drvdata at end of probe function (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass device-specific struct to internal functions (Bjorn Helgaas)
     Move struct pcie_port setup to probe function (Bjorn Helgaas)
     Reorder struct dra7xx_pcie (Bjorn Helgaas)
 
   TI Keystone host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Use generic DesignWare accessors (Bjorn Helgaas)
     Pass keystone_pcie, not address, to IRQ functions (Bjorn Helgaas)
     Pass keystone_pcie, not va_app_base, to DBI functions (Bjorn Helgaas)
     Add app register accessors (Bjorn Helgaas)
     Reorder struct keystone_pcie (Bjorn Helgaas)
 
   Xilinx AXI host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
     Removed unused xilinx_pcie_assign_msi() argument (Bjorn Helgaas)
 
   Xilinx NWL host bridge driver
     Add local struct device pointers (Bjorn Helgaas)
     Remove unused platform data (Bjorn Helgaas)
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Merge tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

PCI changes for the v4.9 merge window:
 "Here are some more changes I'd like to have in v4.9.  There's one
  small Tegra bug fix in the PHY poweroff path, which is only used in
  failure paths.

  The rest is all strictly cleanup that should make host bridge drivers
  more readable, but shouldn't actually change any behavior.

  Summary:

   - use local struct device pointers in many host bridge drivers for
     clarity

   - remove unused platform data

   - use generic DesignWare accessors

   - misc cleanups: remove redundant structure entries and re-order
     structure members to put comon generic fields first etc"

* tag 'pci-v4.9-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
  MAINTAINERS: Add maintainer for the PCIe Marvell Armada 8K driver
  MAINTAINERS: Add DT binding to the Aardvark PCIe driver maintainer
  PCI: rockchip: Indent "if" statement body
  PCI: hisi: Reorder struct hisi_pcie
  PCI: hisi: Pass device-specific struct to internal functions
  PCI: hisi: Include register block base in PCIE_SYS_STATE4 address
  PCI: dra7xx: Reorder struct dra7xx_pcie
  PCI: xilinx-nwl: Remove unused platform data
  PCI: xilinx-nwl: Add local struct device pointers
  PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
  PCI: xilinx: Remove unused platform data
  PCI: xilinx: Add local struct device pointers
  PCI: xgene: Add register accessors
  PCI: xgene: Pass struct xgene_pcie_port to setup functions
  PCI: xgene: Remove unused platform data
  PCI: tegra: Remove unused platform data
  PCI: tegra: Add local struct device pointers
  PCI: tegra: Fix argument order in tegra_pcie_phy_disable()
  PCI: rockchip: Remove unused platform data
  PCI: rcar-gen2: Add local struct device pointers
  ...
2016-10-13 17:08:58 -07:00
Linus Torvalds
44dc8c9d68 platform-drivers-x86 for 4.9-1
Cleanups, refactoring, and a couple bug fixes.
 
 intel_pmc_core:
  - avoid boot time warning for !CONFIG_DEBUGFS_FS
 
 intel_pmc_ipc:
  - Convert to use platform_device_register_full
 
 asus-wmi:
  - Filter buggy scan codes on ASUS Q500A
 
 toshiba_bluetooth:
  - Decouple an error checking status code
 
 toshiba_haps:
  - Change logging level from info to debug
  - Split ACPI and HDD protection error handling
 
 asus-laptop:
  - get rid of parse_arg()
 
 asus-wmi:
  - fix asus ux303ub brightness issue
 
 toshiba_acpi:
  - Fix typo in *_cooling_method_set function
  - Change error checking logic from TCI functions
  - Clean up variable declaration
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Merge tag 'platform-drivers-x86-v4.9-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform drivers updates from Darren Hart:
 "Cleanups, refactoring, and a couple bug fixes.

  intel_pmc_core:
   - avoid boot time warning for !CONFIG_DEBUGFS_FS

  intel_pmc_ipc:
   - Convert to use platform_device_register_full

  asus-wmi:
   - Filter buggy scan codes on ASUS Q500A

  toshiba_bluetooth:
   - Decouple an error checking status code

  toshiba_haps:
   - Change logging level from info to debug
   - Split ACPI and HDD protection error handling

  asus-laptop:
   - get rid of parse_arg()

  asus-wmi:
   - fix asus ux303ub brightness issue

  toshiba_acpi:
   - Fix typo in *_cooling_method_set function
   - Change error checking logic from TCI functions
   - Clean up variable declaration"

* tag 'platform-drivers-x86-v4.9-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  platform/x86: intel_pmc_core: avoid boot time warning for !CONFIG_DEBUGFS_FS
  platform/x86: intel_pmc_ipc: Convert to use platform_device_register_full
  platform/x86: asus-wmi: Filter buggy scan codes on ASUS Q500A
  platform/x86: toshiba_bluetooth: Decouple an error checking status code
  platform/x86: toshiba_haps: Change logging level from info to debug
  platform/x86: toshiba_haps: Split ACPI and HDD protection error handling
  platform/x86: asus-laptop: get rid of parse_arg()
  platform/x86: asus-wmi: fix asus ux303ub brightness issue
  platform/x86: toshiba_acpi: Fix typo in *_cooling_method_set function
  platform/x86: toshiba_acpi: Change error checking logic from TCI functions
  platform/x86: toshiba_acpi: Clean up variable declaration
2016-10-13 16:52:39 -07:00
Linus Torvalds
e3799a210d Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:

 - a new watchdog pretimeout governor framework

 - support to upload the firmware on the ziirave_wdt

 - several fixes and cleanups

* git://www.linux-watchdog.org/linux-watchdog: (26 commits)
  watchdog: imx2_wdt: add pretimeout function support
  watchdog: softdog: implement pretimeout support
  watchdog: pretimeout: add pretimeout_available_governors attribute
  watchdog: pretimeout: add option to select a pretimeout governor in runtime
  watchdog: pretimeout: add panic pretimeout governor
  watchdog: pretimeout: add noop pretimeout governor
  watchdog: add watchdog pretimeout governor framework
  watchdog: hpwdt: add support for iLO5
  fs: compat_ioctl: add pretimeout functions for watchdogs
  watchdog: add pretimeout support to the core
  watchdog: imx2_wdt: use preferred BIT macro instead of open coded values
  watchdog: st_wdt: Remove support for obsolete platforms
  watchdog: bindings: Remove obsolete platforms from dt doc.
  watchdog: mt7621_wdt: Remove assignment of dev pointer
  watchdog: rt2880_wdt: Remove assignment of dev pointer
  watchdog: constify watchdog_ops structures
  watchdog: tegra: constify watchdog_ops structures
  watchdog: iTCO_wdt: constify iTCO_wdt_pm structure
  watchdog: cadence_wdt: Fix the suspend resume
  watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF
  ...
2016-10-13 16:44:20 -07:00
Hoan Tran
c197d75803 cpufreq: CPPC: Correct desired_perf calculation
The desired_perf is an abstract performance number. Its value should
be in the range of [lowest perf, highest perf] of CPPC.
The correct calculation is
  desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz

And cppc_cpufreq_set_target() returns if desired_perf is exactly
the same with the old perf.

Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-13 23:10:41 +02:00
Nikolay Aleksandrov
4eb6753c33 net: bridge: add the multicast_flood flag attribute to brport_attrs
When I added the multicast flood control flag, I also added an attribute
for it for sysfs similar to other flags, but I forgot to add it to
brport_attrs.

Fixes: b6cb5ac833 ("net: bridge: add per-port multicast flood flag")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:16:36 -04:00
Tobias Klauser
5852e93d4b net: axienet: Remove unused parameter from __axienet_device_reset
The dev parameter passed to __axienet_device_reset() is not used inside
the function, so remove it.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:15:28 -04:00
Dan Carpenter
10f6c4d6ab liquidio: CN23XX: fix a loop timeout
This is supposed to loop 1000 times and then give up.  The problem is
it's a post-op and after the loop we test if "loop" is zero when really
it would be -1.  Fix this by making it a pre-op.

Fixes: 1b7c55c453 ("liquidio: CN23XX queue manipulation")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:12:50 -04:00
Dan Carpenter
775f4f0550 net: rtnl: info leak in rtnl_fill_vfinfo()
The "vf_vlan_info" struct ends with a 2 byte struct hole so we have to
memset it to ensure that no stack information is revealed to user space.

Fixes: 79aab093a0 ('net: Update API for VF vlan protocol 802.1ad support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:12:04 -04:00
Dan Carpenter
7307616245 tipc: info leak in __tipc_nl_add_udp_addr()
We should clear out the padding and unused struct members so that we
don't expose stack information to userspace.

Fixes: fdb3accc2c ('tipc: add the ability to get UDP options via netlink')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:10:01 -04:00
David Ahern
6104e112f4 net: ipv4: Do not drop to make_route if oif is l3mdev
Commit e0d56fdd73 was a bit aggressive removing l3mdev calls in
the IPv4 stack. If the fib_lookup fails we do not want to drop to
make_route if the oif is an l3mdev device.

Also reverts 19664c6a00 ("net: l3mdev: Remove netif_index_is_l3_master")
which removed netif_index_is_l3_master.

Fixes: e0d56fdd73 ("net: l3mdev: remove redundant calls")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:05:26 -04:00
Andrew Lunn
3c293f4e08 net: phy: Trigger state machine on state change and not polling.
The phy_start() is used to indicate the PHY is now ready to do its
work. The state is changed, normally to PHY_UP which means that both
the MAC and the PHY are ready.

If the phy driver is using polling, when the next poll happens, the
state machine notices the PHY is now in PHY_UP, and kicks off
auto-negotiation, if needed.

If however, the PHY is using interrupts, there is no polling. The phy
is stuck in PHY_UP until the next interrupt comes along. And there is
no reason for the PHY to interrupt.

Have phy_start() schedule the state machine to run, which both speeds
up the polling use case, and makes the interrupt use case actually
work.

This problems exists whenever there is a state change which will not
cause an interrupt. Trigger the state machine in these cases,
e.g. phy_error().

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: Kyle Roeschley <kyle.roeschley@ni.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 12:03:47 -04:00
Ralf Baechle
38b8767462 Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API
This should have been part of 40e084a506 ('MIPS: Add uprobes support.').

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fixes: 40e084a506 ("MIPS: Add uprobes support.")
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: linux-mips@linux-mips.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14392/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-13 17:19:19 +02:00
Eric Dumazet
8ce48623f0 ipv6: tcp: restore IP6CB for pktoptions skbs
Baozeng Ding reported following KASAN splat :

BUG: KASAN: use-after-free in ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 at addr ffff880029c84ec8
Read of size 1 by task poc/25548
Call Trace:
 [<ffffffff82cf43c9>] dump_stack+0x12e/0x185 /lib/dump_stack.c:15
 [<     inline     >] print_address_description /mm/kasan/report.c:204
 [<ffffffff817ced3b>] kasan_report_error+0x48b/0x4b0 /mm/kasan/report.c:283
 [<     inline     >] kasan_report /mm/kasan/report.c:303
 [<ffffffff817ced9e>] __asan_report_load1_noabort+0x3e/0x40 /mm/kasan/report.c:321
 [<ffffffff85c71da1>] ip6_datagram_recv_specific_ctl+0x13f1/0x15c0 /net/ipv6/datagram.c:687
 [<ffffffff85c734c3>] ip6_datagram_recv_ctl+0x33/0x40
 [<ffffffff85c0b07c>] do_ipv6_getsockopt.isra.4+0xaec/0x2150
 [<ffffffff85c0c7f6>] ipv6_getsockopt+0x116/0x230
 [<ffffffff859b5a12>] tcp_getsockopt+0x82/0xd0 /net/ipv4/tcp.c:3035
 [<ffffffff855fb385>] sock_common_getsockopt+0x95/0xd0 /net/core/sock.c:2647
 [<     inline     >] SYSC_getsockopt /net/socket.c:1776
 [<ffffffff855f8ba2>] SyS_getsockopt+0x142/0x230 /net/socket.c:1758
 [<ffffffff8685cdc5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Memory state around the buggy address:
 ffff880029c84d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff880029c84e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ffff880029c84e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                              ^
 ffff880029c84f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff880029c84f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

He also provided a syzkaller reproducer.

Issue is that ip6_datagram_recv_specific_ctl() expects to find IP6CB
data that was moved at a different place in tcp_v6_rcv()

This patch moves tcp_v6_restore_cb() up and calls it from
tcp_v6_do_rcv() when np->pktoptions is set.

Fixes: 971f10eca1 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:07:34 -04:00
David S. Miller
3f2b0a5a35 netvsc: Remove mistaken udp.h inclusion.
Based upon v2 of Stephen's patch.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:04:07 -04:00
Arnd Bergmann
f112be65fd xen-netback: fix type mismatch warning
Wiht the latest rework of the xen-netback driver, we get a warning
on ARM about the types passed into min():

drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk':
include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror]

The reason is that XEN_PAGE_SIZE is not size_t here. There
is no actual bug, and we can easily avoid the warning using the
min_t() macro instead of min().

Fixes: eb1723a29b ("xen-netback: refactor guest rx")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:02:25 -04:00
Giuseppe CAVALLARO
7086605a6a stmmac: fix error check when init ptp
This patch fixes a problem when propagated the
failure of ptp_clock_register to open function.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:00:51 -04:00
Giuseppe CAVALLARO
be9b3174c4 stmmac: fix ptp init for gmac4
The gmac 4.x version has not extended descriptors
(that are available on 3.x instead of).
While initializing the PTP module, the advanced PTP was
enabled in case of extended descriptors. This cannot be
applied for 4.x version where only the hardware capability
register has to show if the feature is present.
Patch also adds some extra netdev_(debug/inof) to better
dump the configuration.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 11:00:50 -04:00
Arnd Bergmann
d4e991313b qed: fix old-style function definition
The definition of qed_get_rdma_ops() is not a prototype unless
we add 'void' here, as indicated by this W=1 warning:

drivers/net/ethernet/qlogic/qed/qed_roce.c: In function ‘qed_get_rdma_ops’:
drivers/net/ethernet/qlogic/qed/qed_roce.c:2950:28: error: old-style function definition [-Werror=old-style-definition]

Fixes: abd49676c7 ("qed: Add RoCE ll2 & GSI support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:52:55 -04:00
stephen hemminger
ad19bc8a95 netvsc: fix checksum on UDP IPV6
The software calculation of UDP checksum in Netvsc driver was
only handling IPv4 case. By using skb_checksum_help() instead
all protocols can be handled. Rearrange code to eliminate goto
and look like other drivers.

This is a temporary solution; recent versions of Window Server etc
do support UDP checksum offload, just need to do the appropriate negotiation
with host to validate before using. This will be done in later patch.

Please queue this for -stable as well.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:48:17 -04:00
WANG Cong
ab102b80ce net_sched: reorder pernet ops and act ops registrations
Krister reported a kernel NULL pointer dereference after
tcf_action_init_1() invokes a_o->init(), it is a race condition
where one thread calling tcf_register_action() to initialize
the netns data after putting act ops in the global list and
the other thread searching the list and then calling
a_o->init(net, ...).

Fix this by moving the pernet ops registration before making
the action ops visible. This is fine because: a) we don't
rely on act_base in pernet ops->init(), b) in the worst case we
have a fully initialized netns but ops is still not ready so
new actions still can't be created.

Reported-by: Krister Johansen <kjlx@templeofstupid.com>
Tested-by: Krister Johansen <kjlx@templeofstupid.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:26:43 -04:00
David Vrabel
d1ef006dc1 xen-netback: fix guest Rx stall detection (after guest Rx refactor)
If a VIF has been ready for rx_stall_timeout (60s by default) and an
Rx ring is drained of all requests an Rx stall will be incorrectly
detected.  When this occurs and the guest Rx queue is empty, the Rx
ring's event index will not be set and the frontend will not raise an
event when new requests are placed on the ring, permanently stalling
the VIF.

This is a regression introduced by eb1723a29b (xen-netback:
refactor guest rx).

Fix this by reinstating the setting of queue->last_rx_time when
placing a packet onto the guest Rx ring.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:20:58 -04:00
Vlad Tsyrklevich
02a9079c66 drivers/ptp: Fix kernel memory disclosure
The reserved field precise_offset->rsv is not cleared before being
copied to user space, leaking kernel stack memory. Clear the struct
before it's copied.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:20:06 -04:00
Tom Herbert
b8a4ddb2e8 net/mlx5: Add MLX5_ARRAY_SET64 to fix BUILD_BUG_ON
I am hitting this in mlx5:

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function
reclaim_pages_cmd.clone.0:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:346: error: call
to __compiletime_assert_346 declared with attribute error:
BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_out, pas[i]) % 64
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function give_pages:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:291: error: call
to __compiletime_assert_291 declared with attribute error:
BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_in, pas[i]) % 64

Problem is that this is doing a BUILD_BUG_ON on a non-constant
expression because of trying to take offset of pas[i] in the
structure.

Fix is to create MLX5_ARRAY_SET64 that takes an additional argument
that is the field index to separate between BUILD_BUG_ON on the array
constant field and the indexed field to assign the value to.
There are two callers of MLX5_SET64 that are trying to get a variable
offset, change those to call MLX5_ARRAY_SET64 passing 'pas' and 'i'
as the arguments to use in the offset check and the indexed value
assignment.

Fixes: a533ed5e17 ("net/mlx5: Pages management commands via mlx5 ifc")
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:13:24 -04:00
Bjørn Mork
9a765881bf qmi_wwan: add support for Quectel EC21 and EC25
The Quectel EC21 and EC25 need the same "set DTR" request as devices
based on the MDM9230 chipset, but has no USB3 support. Our best guess
is that the "set DTR" functionality depends on chipset and/or
baseband firmware generation. But USB3 is still an optional feature.

Since we cannot enable this unconditionally for all older devices, and
there doesn't appear to be anything we can use in the USB descriptors
to identify these chips, we are forced to use a device specific quirk
flag.

Reported-and-tested-by: Sebastian Sjoholm <sebastian.sjoholm@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:05:06 -04:00
David S. Miller
4013bee5f0 Merge branch 'ovs-8021AD-fixes'
Jiri Benc says:

====================
openvswitch: vlan fixes

Fix three issues introduced by the 802.1AD patchset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:24 -04:00
Jiri Benc
3145c037e7 openvswitch: add NETIF_F_HW_VLAN_STAG_TX to internal dev
The internal device does support 802.1AD offloading since 018c1dda5f
("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink
attributes").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Jiri Benc
72ec108d70 openvswitch: fix vlan subtraction from packet length
When the packet has its vlan tag in skb->vlan_tci, the length of the VLAN
header is not counted in skb->len. It doesn't make sense to subtract it.

Fixes: 018c1dda5f ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Jiri Benc
20ecf1e4e3 openvswitch: vlan: remove wrong likely statement
This code is called whenever flow key is being extracted from the packet.
The packet may be as likely vlan tagged as not.

Fixes: 018c1dda5f ("openvswitch: 802.1AD Flow handling, actions, vlan parsing, netlink attributes")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Eric Garver <e@erig.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 10:03:23 -04:00
Wei Yongjun
88a2428b83 qed: Fix to use list_for_each_entry_safe() when delete items
Since we will remove items off the list using list_del() we need
to use a safe version of the list_for_each_entry() macro aptly named
list_for_each_entry_safe().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:57:10 -04:00
Arnd Bergmann
1e09c106a4 tlan: avoid unused label with PCI=n
While build testing with randconfig on x86, I ran into this warning
that appears to have been around forever

drivers/net/ethernet/ti/tlan.c: In function ‘tlan_probe1’:
drivers/net/ethernet/ti/tlan.c:614:1: error: label ‘err_out’ defined but not used [-Werror=unused-label]

This can be trivially avoided by just moving the label into the
existing #ifdef.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:56:00 -04:00
Paul Durrant
a9339b8e13 xen-netback: (re-)create a debugfs node for hash information
It is useful to be able to see the hash configuration when running tests.
This patch adds a debugfs node for that purpose.

The original version of this patch (commit c0c64c1523) was reverted due
to build failures caused by a conflict with commit 0364a8824c
("xen-netback: switch to threaded irq for control ring"). This new version
of the patch is nearly identical to the original, the only difference
being that creation of the debugfs node is predicated on 'ctrl_irq' being
non-zero rather then the now non-existent 'ctrl_task'.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:53:09 -04:00
Eric Dumazet
fa59b27c9d net_sched: do not broadcast RTM_GETTFILTER result
There are two ways to get tc filters from kernel to user space.

1) Full dump (tc_dump_tfilter())
2) RTM_GETTFILTER to get one precise filter, reducing overhead.

The second operation is unfortunately broadcasting its result,
polluting "tc monitor" users.

This patch makes sure only the requester gets the result, using
netlink_unicast() instead of rtnetlink_send()

Jamal cooked an iproute2 patch to implement "tc filter get" operation,
but other user space libraries already use RTM_GETTFILTER when a single
filter is queried, instead of dumping all filters.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:51:55 -04:00
Rafael J. Wysocki
abb6627910 cpufreq: conservative: Fix next frequency selection
Commit d352cf47d9 (cpufreq: conservative: Do not use transition
notifications) overlooked the case when the "frequency step" used
by the conservative governor is small relative to the distances
between the available frequencies and broke the algorithm by
using policy->cur instead of the previously requested frequency
when computing the next one.

As a result, the governor may not be able to go outside of a narrow
range between two consecutive available frequencies.

Fix the problem by making the governor save the previously requested
frequency and select the next one relative that value (unless it is
out of range, in which case policy->cur will be used instead).

Fixes: d352cf47d9 (cpufreq: conservative: Do not use transition notifications)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=177171
Reported-and-tested-by: Aleksey Rybalkin <aleksey@rybalkin.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.8+ <stable@vger.kernel.org> # 4.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-13 14:42:06 +02:00
Chris Mason
d9ed71e545 Merge branch 'fst-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.9
Signed-off-by: Chris Mason <clm@fb.com>
2016-10-12 13:16:00 -07:00
Joe Perches
abc4b9a53e acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONT
acpi_os_vprintf currently always uses a KERN_CONT prefix which may be
followed immediately by a proper KERN_<LEVEL>.  Check if the buffer
already has a KERN_<LEVEL> at the start of the buffer and avoid the
unnecessary KERN_CONT.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12 21:46:37 +02:00
Juergen Gross
e311404f79 ACPI / PAD: don't register acpi_pad driver if running as Xen dom0
When running as Xen dom0 a special processor_aggregator driver is
needed.  Don't register the standard driver in this case.

Without that check an error message:

"Error: Driver 'processor_aggregator' is already registered,
aborting..."

will be displayed.

Signed-off-by: Juergen Gross <jgross@suse.com>
[ rjw: Minor fixups ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12 21:44:04 +02:00
Aaro Koskinen
899bb6642f cpufreq: skip invalid entries when searching the frequency
Skip invalid entries when searching the frequency. This fixes cpufreq
at least on loongson2 MIPS board.

Fixes: da0c6dc00c (cpufreq: Handle sorted frequency tables more efficiently)
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.8+ <stable@vger.kernel.org> # 4.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12 21:01:18 +02:00
Rafael J. Wysocki
3954517e2f cpufreq: intel_pstate: Fix struct pstate_adjust_policy kerneldoc
It looks like the name of struct pstate_adjust_policy was updated
without updating its kerneldoc comment accordingly, so fix that
mistake.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-10-12 20:58:14 +02:00
Rafael J. Wysocki
0843e83c1a cpufreq: intel_pstate: Proportional algorithm for Atom
The PID algorithm used by the intel_pstate driver tends to drive
performance to the minimum for workloads with utilization below the
setpoint, which is undesirable, so replace it with a modified
"proportional" algorithm on Atom.

The new algorithm will set the new P-state to be 1.25 times the
available maximum times the (frequency-invariant) utilization during
the previous sampling period except when the target P-state computed
this way is lower than the average P-state during the previous
sampling period.  In the latter case, it will increase the target by
50% of the difference between it and the average P-state to prevent
performance from dropping down too fast in some cases.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2016-10-12 20:58:13 +02:00
Linus Torvalds
b67be92feb pwm: Changes for v4.9-rc1
This set of changes contains support for PWM signal capture in the STi
 driver as well as support for the PWM controller found on Meson SoCs.
 There's also support added for the MediaTek MT2701 and SunXi H3 to the
 existing drivers.
 
 Other than that there's a fair set of miscellaneous cleanups and fixes
 across the board.
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Merge tag 'pwm/for-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This set of changes contains support for PWM signal capture in the STi
  driver as well as support for the PWM controller found on Meson SoCs.
  There's also support added for the MediaTek MT2701 and SunXi H3 to the
  existing drivers.

  Other than that there's a fair set of miscellaneous cleanups and fixes
  across the board"

* tag 'pwm/for-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (24 commits)
  pwm: meson: Handle unknown ID values
  pwm: sti: Take the opportunity to conduct a little house keeping
  pwm: sti: It's now valid for number of PWM channels to be zero
  pwm: sti: Add PWM capture callback
  pwm: sti: Add support for PWM capture interrupts
  pwm: sti: Initialise PWM capture device data
  pwm: sti: Supply PWM Capture clock handling
  pwm: sti: Supply PWM capture register addresses and bit locations
  pwm: sti: Only request clock rate when needed
  pwm: sti: Reorganise register names in preparation for new functionality
  pwm: sti: Rename channel => device
  dt-bindings: pwm: sti: Update DT bindings for capture support
  pwm: lpc-18xx: use pwm_set_chip_data
  pwm: sunxi: Add H3 support
  pwm: Add support for Meson PWM Controller
  dt-bindings: pwm: Add bindings for Meson PWM Controller
  pwm: samsung: Fix to use lowest div for large enough modulation bits
  pwm: pwm-tipwmss: Remove all runtime PM gets/puts
  pwm: cros-ec: Add __packed to prevent padding
  pwm: Add MediaTek MT2701 display PWM driver support
  ...
2016-10-12 11:11:05 -07:00
Dan Carpenter
fdd8218d7d ALSA: line6: fix a crash in line6_hwdep_write()
The error checking here is messed up so we could end up dereferencing
-EFAULT.

Fixes: a16039cbf1 ('ALSA: line6: Add hwdep interface to access the POD control messages')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-10-12 20:10:23 +02:00