Commit Graph

37673 Commits

Author SHA1 Message Date
Florian Fainelli
010c8f01aa net: Get rid of switchdev_port_attr_get()
With the bridge no longer calling switchdev_port_attr_get() to obtain
the supported bridge port flags from a driver but instead trying to set
the bridge port flags directly and relying on driver to reject
unsupported configurations, we can effectively get rid of
switchdev_port_attr_get() entirely since this was the only place where
it was called.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-21 14:55:14 -08:00
Florian Fainelli
cc0c207a5d net: Remove SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT
Now that we have converted the bridge code and the drivers to check for
bridge port(s) flags at the time we try to set them, there is no need
for a get() -> set() sequence anymore and
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT therefore becomes unused.

Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-21 14:55:14 -08:00
David S. Miller
375ca548f7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two easily resolvable overlapping change conflicts, one in
TCP and one in the eBPF verifier.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-20 00:34:07 -08:00
Petr Vorel
31a1b8d528 doc: Mention MSG_ZEROCOPY implementation for UDP
MSG_ZEROCOPY implementation for UDP was merged in v5.0,
6e360f7331 ("Merge branch 'udp-msg_zerocopy'").

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:30:02 -08:00
David S. Miller
3313da8188 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The netfilter conflicts were rather simple overlapping
changes.

However, the cls_tcindex.c stuff was a bit more complex.

On the 'net' side, Cong is fixing several races and memory
leaks.  Whilst on the 'net-next' side we have Vlad adding
the rtnl-ness support.

What I've decided to do, in order to resolve this, is revert the
conversion over to using a workqueue that Cong did, bringing us back
to pure RCU.  I did it this way because I believe that either Cong's
races don't apply with have Vlad did things, or Cong will have to
implement the race fix slightly differently.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-15 12:38:38 -08:00
Linus Torvalds
6e7bd3b549 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix MAC address setting in mac80211 pmsr code, from Johannes Berg.

 2) Probe SFP modules after being attached, from Russell King.

 3) Byte ordering bug in SMC rx_curs_confirmed code, from Ursula Braun.

 4) Revert some r8169 changes that are causing regressions, from Heiner
    Kallweit.

 5) Fix spurious connection timeouts in netfilter nat code, from Florian
    Westphal.

 6) SKB leak in tipc, from Hoang Le.

 7) Short packet checkum issue in mlx4, similar to a previous mlx5
    change, from Saeed Mahameed. The issue is that whilst padding bytes
    are usually zero, it is not guarateed and the hardware doesn't take
    the padding bytes into consideration when generating the checksum.

 8) Fix various races in cls_tcindex, from Cong Wang.

 9) Need to set stream ext to NULL before freeing in SCTP code, from Xin
    Long.

10) Fix locking in phy_is_started, from Heiner Kallweit.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (54 commits)
  net: ethernet: freescale: set FEC ethtool regs version
  net: hns: Fix object reference leaks in hns_dsaf_roce_reset()
  mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs
  net: phy: fix potential race in the phylib state machine
  net: phy: don't use locking in phy_is_started
  selftests: fix timestamping Makefile
  net: dsa: bcm_sf2: potential array overflow in bcm_sf2_sw_suspend()
  net: fix possible overflow in __sk_mem_raise_allocated()
  dsa: mv88e6xxx: Ensure all pending interrupts are handled prior to exit
  net: phy: fix interrupt handling in non-started states
  sctp: set stream ext to NULL after freeing it in sctp_stream_outq_migrate
  sctp: call gso_reset_checksum when computing checksum in sctp_gso_segment
  net/mlx5e: XDP, fix redirect resources availability check
  net/mlx5: Fix a compilation warning in events.c
  net/mlx5: No command allowed when command interface is not ready
  net/mlx5e: Fix NULL pointer derefernce in set channels error flow
  netfilter: nft_compat: use-after-free when deleting targets
  team: avoid complex list operations in team_nl_cmd_options_set()
  net_sched: fix two more memory leaks in cls_tcindex
  net_sched: fix a memory leak in cls_tcindex
  ...
2019-02-15 08:00:11 -08:00
Yangbo Lu
2843bf5185 dt-binding: ptp_qoriq: add little-endian support
Specify "little-endian" property if the 1588 timer IP block
is little-endian mode. The default endian mode is big-endian.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12 12:58:48 -05:00
Randy Dunlap
bd37fdf524 Documentation: fix some freescale dpio-driver.rst warnings
Fix markup warnings for one list by using correct list syntax.
Fix markup warnings for another list by using blank lines before the
list.

Documentation/networking/device_drivers/freescale/dpaa2/dpio-driver.rst:30: WARNING: Unexpected indentation.
Documentation/networking/device_drivers/freescale/dpaa2/dpio-driver.rst:143: WARNING: Unexpected indentation.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Cc: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Cc: netdev@vger.kernel.org
Cc: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 21:29:02 -08:00
Jakub Kicinski
14fd1901e7 devlink: add a generic board.manufacture version name
At Jiri's suggestion add a generic "board.manufacture"
version identifier.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 20:39:56 -08:00
Jouke Witteveen
989723b00b Documentation: bring operstate documentation up-to-date
Netlink has moved from bitmasks to group numbers long ago.

Signed-off-by: Jouke Witteveen <j.witteveen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 12:38:51 -08:00
Waiman Long
1413d9af24 Documentation: Fix grammatical error in sysctl/fs.txt & clarify negative dentry
Fix a grammatical error in the dentry-state text and clarify the usage
of negative dentries.

Fixes: af0c9af1b3 ("fs/dcache: Track & report number of negative dentries")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-02-11 09:10:22 -08:00
yupeng
132c4e9e6a add snmp counter document
add document for tcp retransmission, tcp fast open, syn cookies,
challenge ack, prune and several general counters

Signed-off-by: yupeng <yupeng0921@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-09 19:00:25 -08:00
Linus Torvalds
2e277fa089 Merge tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
 "Intel decided to leave the newly added Scalable Mode Feature
  default-disabled for now. The patch here accomplishes that"

* tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Leave scalable mode default off
2019-02-08 15:34:10 -08:00
Nicolas Ferre
4973a1276c net/macb: bindings doc: add sam9x60 binding
Add the compatibility sting documentation for sam9x60 10/100 interface.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:19:50 -08:00
Nicolas Ferre
83ef97d1d3 net/macb: bindings doc/trivial: fix documentation for sama5d3 10/100 interface
This removes a line left while adding the correct compatibility string for
sama5d3 10/100 interface. Now use the "atmel,sama5d3-macb" string.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:19:50 -08:00
Jiri Pirko
98bbf70c1c mlxsw: spectrum: add "acl_region_rehash_interval" devlink param
Expose new driver-specific "acl_region_rehash_interval" devlink param
which would allow user to alter default ACL region rehash interval.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:02:50 -08:00
David S. Miller
a655fe9f19 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
An ipvlan bug fix in 'net' conflicted with the abstraction away
of the IPV6 specific support in 'net-next'.

Similarly, a bug fix for mlx5 in 'net' conflicted with the flow
action conversion in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08 15:00:17 -08:00
Russell King
4ca124f4d9 dt-bindings: net: mvneta: add phys property
Add an optional phys property to the mvneta binding documentation for
the common phy.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 18:10:26 -08:00
Russell King
120382714c dt-bindings: phy: Armada 38x common phy bindings
Add the Marvell Armada 38x common phy bindings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 18:10:25 -08:00
Linus Torvalds
74e96711e3 Merge tag 'platform-drivers-x86-v5.0-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixlet from Darren Hart:
 "Correct Documentation/ABI 4.21 KernelVersion to 5.0"

* tag 'platform-drivers-x86-v5.0-2' of git://git.infradead.org/linux-platform-drivers-x86:
  Documentation/ABI: Correct mlxreg-io KernelVersion for 5.0
2019-02-07 15:54:45 -07:00
Aya Levin
db2ab7a08f devlink: Add Documentation/networking/devlink-health.txt
This patch adds a new file to add information about devlink health
mechanism.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 10:34:29 -08:00
David S. Miller
e90b1fd83c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-02-07

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add a riscv64 JIT for BPF, from Björn.

2) Implement BTF deduplication algorithm for libbpf which takes BTF type
   information containing duplicate per-compilation unit information and
   reduces it to an equivalent set of BTF types with no duplication and
   without loss of information, from Andrii.

3) Offloaded and native BPF XDP programs can coexist today, enable also
   offloaded and generic ones as well, from Jakub.

4) Expose various BTF related helper functions in libbpf as API which
   are in particular helpful for JITed programs, from Yonghong.

5) Fix the recently added JMP32 code emission in s390x JIT, from Heiko.

6) Fix BPF kselftests' tcp_{server,client}.py to be able to run inside
   a network namespace, also add a fix for libbpf to get libbpf_print()
   working, from Stanislav.

7) Fixes for bpftool documentation, from Prashant.

8) Type cleanup in BPF kselftests' test_maps.c to silence a gcc8 warning,
   from Breno.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06 16:56:20 -08:00
Mike Rapoport
facd86390b docs/networking: fix formatting of Intel drivers documentation
The documentation of Intel drivers is missing the heading adornment for
document titles.

This causes the generated html to have TOC entries from these documents to
appear as top level TOC entries:

* Linux* Base Driver for Intel(R) Ethernet Network Connection
* Contents
* Identifying Your Adapter
* Command Line Parameters
  * AutoNeg
  * Duplex
  ...

Add overline heading adornment to document titles.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-02-05 16:08:54 -08:00
Moritz Fischer
baaac2fb0d dt-bindings: net: Add fixed-link support
Update device-tree binding with fixed-link support.

With fixed-link support the formerly required property 'phy-handle'
is now optional if 'fixed-link' child is present.

Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-05 10:34:34 -08:00
Moritz Fischer
dd648818da net: nixge: Make mdio child node optional
Make MDIO child optional and only instantiate the
MDIO bus if the child is actually present.

There are currently no (in-tree) users of this
binding; all (out-of-tree) users use overlays that
get shipped together with the FPGA images that contain
the IP.

This will significantly increase maintainabilty
of future revisions of this IP.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-05 10:34:34 -08:00
Björn Töpel
e8cb0167ae bpf, doc: add RISC-V JIT to BPF documentation
Update Documentation/networking/filter.txt and
Documentation/sysctl/net.txt to mention RISC-V.

Signed-off-by: Björn Töpel <bjorn.topel@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-05 16:56:10 +01:00
Linus Walleij
5468e82f70 net: phy: fixed-phy: Drop GPIO from fixed_phy_add()
All users of the fixed_phy_add() pass -1 as GPIO number
to the fixed phy driver, and all users of fixed_phy_register()
pass -1 as GPIO number as well, except for the device
tree MDIO bus.

Any new users should create a proper device and pass the
GPIO as a descriptor associated with the device so delete
the GPIO argument from the calls and drop the code looking
requesting a GPIO in fixed_phy_add().

In fixed phy_register(), investigate the "fixed-link"
node and pick the GPIO descriptor from "link-gpios" if
this property exists. Move the corresponding code out
of of_mdio.c as the fixed phy code anyways requires
OF to be in use.

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-04 18:33:36 -08:00
Deepa Dinamani
9dd49211b8 socket: Update timestamping Documentation
With the new y2038 safe timestamping options added, update the
documentation to reflect the changes.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-03 11:17:31 -08:00
Linus Torvalds
24b888d8d5 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A few updates for x86:

   - Fix an unintended sign extension issue in the fault handling code

   - Rename the new resource control config switch so it's less
     confusing

   - Avoid setting up EFI info in kexec when the EFI runtime is
     disabled.

   - Fix the microcode version check in the AMD microcode loader so it
     only loads higher version numbers and never downgrades

   - Set EFER.LME in the 32bit trampoline before returning to long mode
     to handle older AMD/KVM behaviour properly.

   - Add Darren and Andy as x86/platform reviewers"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Avoid confusion over the new X86_RESCTRL config
  x86/kexec: Don't setup EFI info if EFI runtime is not enabled
  x86/microcode/amd: Don't falsely trick the late loading mechanism
  MAINTAINERS: Add Andy and Darren as arch/x86/platform/ reviewers
  x86/fault: Fix sign-extend unintended sign extension
  x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode
  x86/cpu: Add Atom Tremont (Jacobsville)
2019-02-03 09:08:12 -08:00
Alex Williams
0bb16830eb net: nixge: Update device-tree bindings with v3.00
Now the DMA engine is free to float elsewhere in the system map.

Signed-off-by: Alex Williams <alex.williams@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-02 20:09:22 -08:00
Linus Torvalds
12491ed354 Merge tag 'devicetree-fixes-for-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fix from Rob Herring:
 "A single fix for building DT bindings in-tree"

* tag 'devicetree-fixes-for-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Fix dt_binding_check target for in tree builds
2019-02-02 10:34:32 -08:00
Johannes Weiner
e6d429313e x86/resctrl: Avoid confusion over the new X86_RESCTRL config
"Resource Control" is a very broad term for this CPU feature, and a term
that is also associated with containers, cgroups etc. This can easily
cause confusion.

Make the user prompt more specific. Match the config symbol name.

 [ bp: In the future, the corresponding ARM arch-specific code will be
   under ARM_CPU_RESCTRL and the arch-agnostic bits will be carved out
   under the CPU_RESCTRL umbrella symbol. ]

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Babu Moger <Babu.Moger@amd.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morse <james.morse@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: linux-doc@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190130195621.GA30653@cmpxchg.org
2019-02-02 10:34:52 +01:00
Jakub Kicinski
785bd550c4 devlink: add generic info version names
Add defines and docs for generic info versions.

v3:
 - add docs;
 - separate patch (Jiri).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-01 15:30:30 -08:00
Martin Kepplinger
3fc46fc9f6 ipconfig: add carrier_timeout kernel parameter
commit 3fb72f1e6e ("ipconfig wait for carrier") added a
"wait for carrier" policy, with a fixed worst case maximum wait
of two minutes.

Now make the wait for carrier timeout configurable on the kernel
commandline and use the 120s as the default.

The timeout messages introduced with
commit 5e404cd658 ("ipconfig: add informative timeout messages while
waiting for carrier") are done in a fixed interval of 20 seconds, just
like they were before (240/12).

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-01 15:24:13 -08:00
Johannes Berg
7d4194633b mac80211: fix missing/malformed documentation
Fix the missing and malformed documentation that kernel-doc and
sphinx warn about. While at it, also add some things to the docs
to fix missing links.

Sadly, the only way I could find to fix this was to add some
trailing whitespace.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-01 12:11:13 +01:00
Linus Torvalds
5b4746a031 Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
 "Mostly driver fixes, but there's a core framework fix in here too:

   - Revert the commits that introduce clk management for the SP clk on
     MMP2 SoCs (used for OLPC). Turns out it wasn't a good idea and
     there isn't any need to manage this clk, it just causes more
     headaches.

   - A performance regression that went unnoticed for many years where
     we would traverse the entire clk tree looking for a clk by name
     when we already have the pointer to said clk that we're looking for

   - A parent linkage fix for the qcom SDM845 clk driver

   - An i.MX clk driver rate miscalculation fix where order of
     operations were messed up

   - One error handling fix from the static checkers"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: gcc: Use active only source for CPUSS clocks
  clk: ti: Fix error handling in ti_clk_parse_divider_data()
  clk: imx: Fix fractional clock set rate computation
  clk: Remove global clk traversal on fetch parent index
  Revert "dt-bindings: marvell,mmp2: Add clock id for the SP clock"
  Revert "clk: mmp2: add SP clock"
  Revert "Input: olpc_apsp - enable the SP clock"
2019-01-31 23:22:57 -08:00
Greg Ungerer
9389b5e946 dt-bindings: net: dsa: add new MT7530 binding to support MT7621
Add devicetree binding to support the compatible mt7530 switch as used
in the MediaTek MT7621 SoC.

Signed-off-by: Greg Ungerer <gerg@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-30 14:26:07 -08:00
Waiman Long
af0c9af1b3 fs/dcache: Track & report number of negative dentries
The current dentry number tracking code doesn't distinguish between
positive & negative dentries.  It just reports the total number of
dentries in the LRU lists.

As excessive number of negative dentries can have an impact on system
performance, it will be wise to track the number of positive and
negative dentries separately.

This patch adds tracking for the total number of negative dentries in
the system LRU lists and reports it in the 5th field in the
/proc/sys/fs/dentry-state file.  The number, however, does not include
negative dentries that are in flight but not in the LRU yet as well as
those in the shrinker lists which are on the way out anyway.

The number of positive dentries in the LRU lists can be roughly found by
subtracting the number of negative dentries from the unused count.

Matthew Wilcox had confirmed that since the introduction of the
dentry_stat structure in 2.1.60, the dummy array was there, probably for
future extension.  They were not replacements of pre-existing fields.
So no sane applications that read the value of /proc/sys/fs/dentry-state
will do dummy thing if the last 2 fields of the sysctl parameter are not
zero.  IOW, it will be safe to use one of the dummy array entry for
negative dentry count.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-30 11:02:11 -08:00
Lu Baolu
8950dcd83a iommu/vt-d: Leave scalable mode default off
Commit 765b6a98c1 ("iommu/vt-d: Enumerate the scalable
mode capability") enables VT-d scalable mode if hardware
advertises the capability. As we will bring up different
features and use cases to upstream in different patch
series, it will leave some intermediate kernel versions
which support partial features. Hence, end user might run
into problems when they use such kernels on bare metals
or virtualization environments.

This leaves scalable mode default off and end users could
turn it on with "intel-iommu=sm_on" only when they have
clear ideas about which scalable features are supported
in the kernel.

Cc: Liu Yi L <yi.l.liu@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Suggested-by: Ashok Raj <ashok.raj@intel.com>
Suggested-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-01-30 17:23:58 +01:00
David S. Miller
ec7146db15 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-01-29

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Teach verifier dead code removal, this also allows for optimizing /
   removing conditional branches around dead code and to shrink the
   resulting image. Code store constrained architectures like nfp would
   have hard time doing this at JIT level, from Jakub.

2) Add JMP32 instructions to BPF ISA in order to allow for optimizing
   code generation for 32-bit sub-registers. Evaluation shows that this
   can result in code reduction of ~5-20% compared to 64 bit-only code
   generation. Also add implementation for most JITs, from Jiong.

3) Add support for __int128 types in BTF which is also needed for
   vmlinux's BTF conversion to work, from Yonghong.

4) Add a new command to bpftool in order to dump a list of BPF-related
   parameters from the system or for a specific network device e.g. in
   terms of available prog/map types or helper functions, from Quentin.

5) Add AF_XDP sock_diag interface for querying sockets from user
   space which provides information about the RX/TX/fill/completion
   rings, umem, memory usage etc, from Björn.

6) Add skb context access for skb_shared_info->gso_segs field, from Eric.

7) Add support for testing flow dissector BPF programs by extending
   existing BPF_PROG_TEST_RUN infrastructure, from Stanislav.

8) Split BPF kselftest's test_verifier into various subgroups of tests
   in order better deal with merge conflicts in this area, from Jakub.

9) Add support for queue/stack manipulations in bpftool, from Stanislav.

10) Document BTF, from Yonghong.

11) Dump supported ELF section names in libbpf on program load
    failure, from Taeung.

12) Silence a false positive compiler warning in verifier's BTF
    handling, from Peter.

13) Fix help string in bpftool's feature probing, from Prashant.

14) Remove duplicate includes in BPF kselftests, from Yue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-28 19:38:33 -08:00
Jiri Pirko
39c6b53cc0 Documentation: add devlink param file for mlxsw driver
Add initial documentation file for devlink params of mlxsw driver. Only
"fw_load_policy" is now supported.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-28 10:43:15 -08:00
David S. Miller
1d68101367 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-27 10:43:17 -08:00
Jiong Wang
d405c7407a bpf: allocate 0x06 to new eBPF instruction class JMP32
The new eBPF instruction class JMP32 uses the reserved class number 0x6.
Kernel BPF ISA documentation updated accordingly.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-01-26 13:33:01 -08:00
Darren Hart (VMware)
6a730fcb9c Documentation/ABI: Correct mlxreg-io KernelVersion for 5.0
The mlxreg-io for the merge window assumed 4.21 as the next kernel
version. Replace 4.21 with 5.0.

Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-01-26 11:30:26 -08:00
Heiner Kallweit
25fe02d00a Documentation: net: phy: switch documentation to rst format
Switch phylib documentation to rst format.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-26 09:16:55 -08:00
Heiner Kallweit
a118b19d91 Documentation: net: phy: reflect latest changes to phylib API
Recent changes to the phylib API
- removed phy_stop_interrupts
- replaced phy_start_interrupts with phy_request_interrupt
- moved some functionality from phy_connect() and phy_disconnect()
  to phy_start() and phy_stop() respectively.
Reflect these changes in the documentation.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-25 21:21:50 -08:00
David S. Miller
30e5c2c6bf net: Revert devlink health changes.
This reverts the devlink health changes from 9/17/2019,
Jiri wants things to be designed differently and it was
agreed that the easiest way to do this is start from the
beginning again.

Commits reverted:

cb5ccfbe73
880ee82f03
c7af343b4e
ff253fedab
6f9d56132e
fcd852c69d
8a66704a13
12bd0dcefe
aba25279c1
ce019faa70
b8c45a033a

And the follow-on build fix:

o33a0efa4baecd689da9474ce0e8b673eb6931c60

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-25 10:53:23 -08:00
Linus Torvalds
d73aba1115 Merge tag 'drm-fixes-2019-01-25-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Live from LCA pull, some fixes all over the place,

  i915:
   - GVT workload destruction fix

  msm:
   - A6XX opp-level fix
   - build fixes
   - hard-coded irq removal

  amdgpu:
   - overclocking fix
   - hybrid gfx fix

  sun4i:
   - fix TMDS clock usage"

* tag 'drm-fixes-2019-01-25-1' of git://anongit.freedesktop.org/drm/drm:
  drm/msm: avoid unused function warning
  drm/msm: Add __printf verification
  drm/msm: Fix A6XX support for opp-level
  drm/msm: honor GPU_READONLY flag
  drm/msm: drop interrupt-names
  drm/msm/gpu: Remove hardcoded interrupt name
  drm/msm/gpu: fix building without debugfs
  drm/i915/execlists: Mark up priority boost on preemption
  drm/i915/gvt: release shadow batch buffer and wa_ctx before destroy one workload
  drm/sun4i: hdmi: Fix usage of TMDS clock
  drm/amd/powerplay: OD setting fix on Vega10
  drm/amdgpu: Add APTX quirk for Lenovo laptop
  drm/msm: Unblock writer if reader closes file
2019-01-25 12:19:10 +13:00
Dave Airlie
f0e7ce1eef Merge tag 'drm-msm-fixes-2019-01-24' of git://people.freedesktop.org/~robclark/linux into drm-fixes
A few fixes for v5.0.. the opp-level fix and removal of hard-coded irq
name is partially to make things smoother in v5.1 merge window to
avoid dependency on drm vs dt trees, but are otherwise sane changes.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGsAEHd2tGRQxRTs+A-8y_tthPs2iUgCCCEwR5vDMXab4A@mail.gmail.com
2019-01-25 07:45:00 +10:00
Jordan Crouse
895ad6b0cc drm/msm: drop interrupt-names
Each GPU core only uses one interrupt so we don't to look up
an interrupt by name and thereby we don't need interrupt-names.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2019-01-24 15:36:33 -05:00