Commit Graph

35993 Commits

Author SHA1 Message Date
David S. Miller
2240c12d7d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2018-10-01

1) Make xfrmi_get_link_net() static to silence a sparse warning.
   From Wei Yongjun.

2) Remove a unused esph pointer definition in esp_input().
   From Haishuang Yan.

3) Allow the NIC driver to quietly refuse xfrm offload
   in case it does not support it, the SA is created
   without offload in this case.
   From Shannon Nelson.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-01 22:31:17 -07:00
David S. Miller
a06ee256e5 Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Version bump conflict in batman-adv, take what's in net-next.

iavf conflict, adjustment of netdev_ops in net-next conflicting
with poll controller method removal in net.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-25 10:35:29 -07:00
Greg Kroah-Hartman
02214bfc89 media fixes for v4.19-rc5
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Merge tag 'media/v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Mauro briefly writes:
  "media fixes for v4.19-rc5

   some drivers and Kbuild fixes"

* tag 'media/v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: platform: fix cros-ec-cec build error
  media: staging/media/mt9t031/Kconfig: remove bogus entry
  media: i2c: mt9v111: Fix v4l2-ctrl error handling
  media: camss: add missing includes
  media: camss: Use managed memory allocations
  media: camss: mark PM functions as __maybe_unused
  media: af9035: prevent buffer overflow on write
  media: video_function_calls.rst: drop obsolete video-set-attributes reference
2018-09-24 15:16:41 +02:00
Haiyang Zhang
f1951c2256 hv_netvsc: Update document for LRO/RSC support
Update document for LRO/RSC support, and the command line info to
change the setting.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-22 17:23:16 -07:00
Biju Das
b1589924c0 dt-bindings: net: ravb: Add support for r8a7744 SoC
Document RZ/G1N (R8A7744) SoC bindings.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21 19:28:10 -07:00
Florian Fainelli
b78ac6ecd1 net: phy: mdio-bcm-unimac: Allow configuring MDIO clock divider
Allow the configuration of the MDIO clock divider when the Device Tree
contains 'clock-frequency' property (similar to I2C and SPI buses).
Because the hardware may have lost its state during suspend/resume,
re-apply the MDIO clock divider upon resumption.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21 19:08:24 -07:00
Greg Kroah-Hartman
a27fb6d983 This pull request is slightly bigger than usual at this stage, but
I swear I would have sent it the same to Linus!  The main cause for
 this is that I was on vacation until two weeks ago and it took a while
 to sort all the pending patches between 4.19 and 4.20, test them and
 so on.
 
 It's mostly small bugfixes and cleanups, mostly around x86 nested
 virtualization.  One important change, not related to nested
 virtualization, is that the ability for the guest kernel to trap CPUID
 instructions (in Linux that's the ARCH_SET_CPUID arch_prctl) is now
 masked by default.  This is because the feature is detected through an
 MSR; a very bad idea that Intel seems to like more and more.  Some
 applications choke if the other fields of that MSR are not initialized
 as on real hardware, hence we have to disable the whole MSR by default,
 as was the case before Linux 4.12.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Paolo writes:
  "It's mostly small bugfixes and cleanups, mostly around x86 nested
   virtualization.  One important change, not related to nested
   virtualization, is that the ability for the guest kernel to trap
   CPUID instructions (in Linux that's the ARCH_SET_CPUID arch_prctl) is
   now masked by default.  This is because the feature is detected
   through an MSR; a very bad idea that Intel seems to like more and
   more.  Some applications choke if the other fields of that MSR are
   not initialized as on real hardware, hence we have to disable the
   whole MSR by default, as was the case before Linux 4.12."

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (23 commits)
  KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs
  kvm: selftests: Add platform_info_test
  KVM: x86: Control guest reads of MSR_PLATFORM_INFO
  KVM: x86: Turbo bits in MSR_PLATFORM_INFO
  nVMX x86: Check VPID value on vmentry of L2 guests
  nVMX x86: check posted-interrupt descriptor addresss on vmentry of L2
  KVM: nVMX: Wake blocked vCPU in guest-mode if pending interrupt in virtual APICv
  KVM: VMX: check nested state and CR4.VMXE against SMM
  kvm: x86: make kvm_{load|put}_guest_fpu() static
  x86/hyper-v: rename ipi_arg_{ex,non_ex} structures
  KVM: VMX: use preemption timer to force immediate VMExit
  KVM: VMX: modify preemption timer bit only when arming timer
  KVM: VMX: immediately mark preemption timer expired only for zero value
  KVM: SVM: Switch to bitmap_zalloc()
  KVM/MMU: Fix comment in walk_shadow_page_lockless_end()
  kvm: selftests: use -pthread instead of -lpthread
  KVM: x86: don't reset root in kvm_mmu_setup()
  kvm: mmu: Don't read PDPTEs when paging is not enabled
  x86/kvm/lapic: always disable MMIO interface in x2APIC mode
  KVM: s390: Make huge pages unavailable in ucontrol VMs
  ...
2018-09-21 16:21:42 +02:00
Antoine Tenart
930e1f5606 Documentation/bindings: net: marvell-pp2: update the IRQs description
This patch updates the interrupts part of the Marvell PPv2 driver
bindings documentation, to keep it in sync with the driver.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-19 21:09:53 -07:00
Drew Schmitt
6fbbde9a19 KVM: x86: Control guest reads of MSR_PLATFORM_INFO
Add KVM_CAP_MSR_PLATFORM_INFO so that userspace can disable guest access
to reads of MSR_PLATFORM_INFO.

Disabling access to reads of this MSR gives userspace the control to "expose"
this platform-dependent information to guests in a clear way. As it exists
today, guests that read this MSR would get unpopulated information if userspace
hadn't already set it (and prior to this patch series, only the CPUID faulting
information could have been populated). This existing interface could be
confusing if guests don't handle the potential for incorrect/incomplete
information gracefully (e.g. zero reported for base frequency).

Signed-off-by: Drew Schmitt <dasch@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-09-20 00:51:46 +02:00
David S. Miller
89f4b9a6e4 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2018-09-18

This series contains changes to i40evf so that it becomes a more
generic virtual function driver for current and future silicon.

While doing the rename of i40evf to a more generic name of iavf,
we also put the driver on a severe diet due to how much of the
code was unneeded or was unused.  The outcome is a lean and mean
virtual function driver that continues to work on existing 40GbE
(i40e) virtual devices and prepped for future supported devices,
like the 100GbE (ice) virtual devices.

This solves 2 issues we saw coming or were already present, the
first was constant code duplication happening with i40e/i40evf,
when much of the duplicate code in the i40evf was not used or was
not needed.  The second was to remove the future confusion of why
future VF devices that were not considered "40GbE" only devices
were supported by i40evf.

The thought is that iavf will be the virtual function driver for
all future devices, so it should have a "generic" name to properly
represent that it is the VF driver for multiple generations of
devices.

The last patch in this series is unreleated to the iavf conversion
and just has to do with a MODULE_LICENSE correction.

Known Caveats:
Existing user space configurations may have to change, but the module
alias in patch 1 helps a bit here.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-18 19:27:40 -07:00
David S. Miller
e366fa4350 Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Two new tls tests added in parallel in both net and net-next.

Used Stephen Rothwell's linux-next resolution.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-18 09:33:27 -07:00
Jesse Brandeburg
8062b2263a intel-ethernet: rename i40evf to iavf
Rename the Intel Ethernet Adaptive Virtual Function driver
(i40evf) to a new name (iavf) that is more consistent with
the ongoing maintenance of the driver as the universal VF driver
for multiple product lines.

This first patch fixes up the directory names and the .ko name,
intentionally ignoring the function names inside the driver
for now.  Basically this is the simplest patch that gets
the rename done and will be followed by other patches that
rename the internal functions.

This patch also addresses a couple of string/name issues
and updates the Copyright year.

Also, made sure to add a MODULE_ALIAS to the old name.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-09-18 08:43:03 -07:00
Paolo Bonzini
cb5fb87a2f KVM: s390: Fixes for 4.19
- more fallout from the hugetlbfs enablement
 - bugfix for vma handling
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Merge tag 'kvm-s390-master-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: Fixes for 4.19

- more fallout from the hugetlbfs enablement
- bugfix for vma handling
2018-09-18 15:12:51 +02:00
Greg Kroah-Hartman
5211da9ca5 Merge gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net
Dave writes:
  "Various fixes, all over the place:

   1) OOB data generation fix in bluetooth, from Matias Karhumaa.

   2) BPF BTF boundary calculation fix, from Martin KaFai Lau.

   3) Don't bug on excessive frags, to be compatible in situations mixing
      older and newer kernels on each end.  From Juergen Gross.

   4) Scheduling in RCU fix in hv_netvsc, from Stephen Hemminger.

   5) Zero keying information in TLS layer before freeing copies
      of them, from Sabrina Dubroca.

   6) Fix NULL deref in act_sample, from Davide Caratti.

   7) Orphan SKB before GRO in veth to prevent crashes with XDP,
      from Toshiaki Makita.

   8) Fix use after free in ip6_xmit, from Eric Dumazet.

   9) Fix VF mac address regression in bnxt_en, from Micahel Chan.

   10) Fix MSG_PEEK behavior in TLS layer, from Daniel Borkmann.

   11) Programming adjustments to r8169 which fix not being to enter deep
       sleep states on some machines, from Kai-Heng Feng and Hans de
       Goede.

   12) Fix DST_NOCOUNT flag handling for ipv6 routes, from Peter
       Oskolkov."

* gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (45 commits)
  net/ipv6: do not copy dst flags on rt init
  qmi_wwan: set DTR for modems in forced USB2 mode
  clk: x86: Stop marking clocks as CLK_IS_CRITICAL
  r8169: Get and enable optional ether_clk clock
  clk: x86: add "ether_clk" alias for Bay Trail / Cherry Trail
  r8169: enable ASPM on RTL8106E
  r8169: Align ASPM/CLKREQ setting function with vendor driver
  Revert "kcm: remove any offset before parsing messages"
  kcm: remove any offset before parsing messages
  net: ethernet: Fix a unused function warning.
  net: dsa: mv88e6xxx: Fix ATU Miss Violation
  tls: fix currently broken MSG_PEEK behavior
  hv_netvsc: pair VF based on serial number
  PCI: hv: support reporting serial number as slot information
  bnxt_en: Fix VF mac address regression.
  ipv6: fix possible use-after-free in ip6_xmit()
  net: hp100: fix always-true check for link up state
  ARM: dts: at91: add new compatibility string for macb on sama5d3
  net: macb: disable scatter-gather for macb on sama5d3
  net: mvpp2: let phylink manage the carrier state
  ...
2018-09-18 09:31:53 +02:00
Hauke Mehrtens
e82b5fe5d4 dt-bindings: net: dsa: lantiq, xrx200-gswip: Fix minor style fixes
* Use one compatible line per line in the documentation
* Remove SoC revision depended compatible lines, we can detect that in
  the driver
* Use lower case letters in hex addresses
* Fix the size of the address ranges in the example, this now matches
  the sizes used by the SoC. The old ones will also work, this just adds
  some empty address space.
* Change the reg size of the gphy-fw node

Fixes: 86ce2bc73c ("dt-bindings: net: dsa: Add lantiq, xrx200-gswip DT bindings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 08:12:11 -07:00
Hauke Mehrtens
d52030e6d5 dt-bindings: net: lantiq, xrx200-net: Use lower case in hex
Use lower case letters in the addresses of the device tree binding.
In addition replace eth with ethernet and fix the size of the reg
element in the example. The additional range does not contain any
registers but is used for the IP block on the this SoC.

Fixes: 839790e88a ("dt-bindings: net: Add lantiq, xrx200-net DT bindings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 08:12:11 -07:00
Nicolas Ferre
321cc359d8 ARM: dts: at91: add new compatibility string for macb on sama5d3
We need this new compatibility string as we experienced different behavior
for this 10/100Mbits/s macb interface on this particular SoC.
Backward compatibility is preserved as we keep the alternative strings.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 07:54:40 -07:00
Greg Kroah-Hartman
8a104f8b58 Code of Conduct: Let's revamp it.
The Code of Conflict is not achieving its implicit goal of fostering
civility and the spirit of 'be excellent to each other'.  Explicit
guidelines have demonstrated success in other projects and other areas
of the kernel.

Here is a Code of Conduct statement for the wider kernel.  It is based
on the Contributor Covenant as described at www.contributor-covenant.org

From this point forward, we should abide by these rules in order to help
make the kernel community a welcoming environment to participate in.

Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Olof Johansson <olof@lxom.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-16 11:42:28 -07:00
Linus Torvalds
27c5a778df Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingol Molnar:
 "Misc fixes:

   - EFI crash fix

   - Xen PV fixes

   - do not allow PTI on 2-level 32-bit kernels for now

   - documentation fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/APM: Fix build warning when PROC_FS is not enabled
  Revert "x86/mm/legacy: Populate the user page-table with user pgd's"
  x86/efi: Load fixmap GDT in efi_call_phys_epilog() before setting %cr3
  x86/xen: Disable CPU0 hotplug for Xen PV
  x86/EISA: Don't probe EISA bus for Xen PV guests
  x86/doc: Fix Documentation/x86/earlyprintk.txt
2018-09-15 08:02:46 -10:00
Linus Torvalds
d7c0268090 xen: fixes for 4.19-rc4
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Merge tag 'for-linus-4.19c-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "This contains some minor cleanups and fixes:

   - a new knob for controlling scrubbing of pages returned by the Xen
     balloon driver to the Xen hypervisor to address a boot performance
     issue seen in large guests booted pre-ballooned

   - a fix of a regression in the gntdev driver which made it impossible
     to use fully virtualized guests (HVM guests) with a 4.19 based dom0

   - a fix in Xen cpu hotplug functionality which could be triggered by
     wrong admin commands (setting number of active vcpus to 0)

  One further note: the patches have all been under test for several
  days in another branch. This branch has been rebased in order to avoid
  merge conflicts"

* tag 'for-linus-4.19c-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/gntdev: fix up blockable calls to mn_invl_range_start
  xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage
  xen: avoid crash in disable_hotplug_cpu
  xen/balloon: add runtime control for scrubbing ballooned out pages
  xen/manage: don't complain about an empty value in control/sysrq node
2018-09-14 13:01:06 -10:00
Marek Marczykowski-Górecki
197ecb3802 xen/balloon: add runtime control for scrubbing ballooned out pages
Scrubbing pages on initial balloon down can take some time, especially
in nested virtualization case (nested EPT is slow). When HVM/PVH guest is
started with memory= significantly lower than maxmem=, all the extra
pages will be scrubbed before returning to Xen. But since most of them
weren't used at all at that point, Xen needs to populate them first
(from populate-on-demand pool). In nested virt case (Xen inside KVM)
this slows down the guest boot by 15-30s with just 1.5GB needed to be
returned to Xen.

Add runtime parameter to enable/disable it, to allow initially disabling
scrubbing, then enable it back during boot (for example in initramfs).
Such usage relies on assumption that a) most pages ballooned out during
initial boot weren't used at all, and b) even if they were, very few
secrets are in the guest at that time (before any serious userspace
kicks in).
Convert CONFIG_XEN_SCRUB_PAGES to CONFIG_XEN_SCRUB_PAGES_DEFAULT (also
enabled by default), controlling default value for the new runtime
switch.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-09-14 08:51:10 -04:00
Linus Torvalds
48751b562b overlayfs fixes for 4.19-rc4
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Merge tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

Pull overlayfs fixes from Miklos Szeredi:
 "This fixes a regression in the recent file stacking update, reported
  and fixed by Amir Goldstein. The fix is fairly trivial, but involves
  adding a fadvise() f_op and the associated churn in the vfs. As
  discussed on -fsdevel, there are other possible uses for this method,
  than allowing proper stacking for overlays.

  And there's one other fix for a syzkaller detected oops"

* tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: fix oopses in ovl_fill_super() failure paths
  ovl: add ovl_fadvise()
  vfs: implement readahead(2) using POSIX_FADV_WILLNEED
  vfs: add the fadvise() file operation
  Documentation/filesystems: update documentation of file_operations
  ovl: fix GPF in swapfile_activate of file from overlayfs over xfs
  ovl: respect FIEMAP_FLAG_SYNC flag
2018-09-13 19:21:40 -10:00
Linus Torvalds
a0efc03b79 - DM verity fix for crash due to using vmalloc'd buffers with the
asynchronous crypto hadsh API.
 
 - Fix to both DM crypt and DM integrity targets to discontinue using
   CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to
   deadlock by recursing back into a filesystem.
 
 - Various DM raid fixes related to reshape and rebuild races.
 
 - Fix for DM thin-provisioning to avoid data corruption that was a
   side-effect of needing to abort DM thin metadata transaction due to
   running out of metadata space.  Fix is to reserve a small amount of
   metadata space so that once it is used the DM thin-pool can finish its
   active transaction before switching to read-only mode.
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Merge tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - DM verity fix for crash due to using vmalloc'd buffers with the
   asynchronous crypto hadsh API.

 - Fix to both DM crypt and DM integrity targets to discontinue using
   CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to
   deadlock by recursing back into a filesystem.

 - Various DM raid fixes related to reshape and rebuild races.

 - Fix for DM thin-provisioning to avoid data corruption that was a
   side-effect of needing to abort DM thin metadata transaction due to
   running out of metadata space. Fix is to reserve a small amount of
   metadata space so that once it is used the DM thin-pool can finish
   its active transaction before switching to read-only mode.

* tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin metadata: try to avoid ever aborting transactions
  dm raid: bump target version, update comments and documentation
  dm raid: fix RAID leg rebuild errors
  dm raid: fix rebuild of specific devices by updating superblock
  dm raid: fix stripe adding reshape deadlock
  dm raid: fix reshape race on small devices
  dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock
  dm verity: fix crash on bufio buffer that was allocated with vmalloc
2018-09-13 19:12:55 -10:00
Hauke Mehrtens
86ce2bc73c dt-bindings: net: dsa: Add lantiq, xrx200-gswip DT bindings
This adds the binding for the GSWIP (Gigabit switch) core found in the
xrx200 / VR9 Lantiq / Intel SoC.

This part takes care of the switch, MDIO bus, and loading the FW into
the embedded GPHYs.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-13 08:14:33 -07:00
Hauke Mehrtens
839790e88a dt-bindings: net: Add lantiq, xrx200-net DT bindings
This adds the binding for the PMAC core between the CPU and the GSWIP
switch found on the xrx200 / VR9 Lantiq / Intel SoC.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-13 08:14:33 -07:00
David S. Miller
aaf9253025 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-12 22:22:42 -07:00
Tobin C. Harding
a20625e49d docs: net: Remove TCP congestion document
Document is stale, let's remove it.

Remove TCP congestion document.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-12 20:42:55 -07:00
Janosch Frank
40ebdb8e59 KVM: s390: Make huge pages unavailable in ucontrol VMs
We currently do not notify all gmaps when using gmap_pmdp_xchg(), due
to locking constraints. This makes ucontrol VMs, which is the only VM
type that creates multiple gmaps, incompatible with huge pages. Also
we would need to hold the guest_table_lock of all gmaps that have this
vmaddr maped to synchronize access to the pmd.

ucontrol VMs are rather exotic and creating a new locking concept is
no easy task. Hence we return EINVAL when trying to active
KVM_CAP_S390_HPAGE_1M and report it as being not available when
checking for it.

Fixes: a4499382 ("KVM: s390: Add huge page enablement control")
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20180801112508.138159-1-frankja@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
2018-09-12 14:46:37 +02:00
Randy Dunlap
07e846bace x86/doc: Fix Documentation/x86/earlyprintk.txt
Fix a few issues in Documentation/x86/earlyprintk.txt:

- correct typos, punctuation, missing word, wrong word
- change product name from Netchip to NetChip
- expand where to add "earlyprintk=dbg"

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Link: http://lkml.kernel.org/r/d0c40ac3-7659-6374-dbda-23d3d2577f30@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10 15:09:30 +02:00
Linus Torvalds
3243a89dcb Fix things so the choice of whether or not to trust RDRAND to
initialize the CRNG is configurable via the boot option
 random.trust_cpu={on,off}
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random driver fix from Ted Ts'o:
 "Fix things so the choice of whether or not to trust RDRAND to
  initialize the CRNG is configurable via the boot option
  random.trust_cpu={on,off}"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: make CPU trust a boot parameter
2018-09-09 05:54:05 -07:00
Linus Torvalds
1d22577703 Kbuild fixes for v4.19
- make setlocalversion more robust about -dirty check
 
  - loosen the pkg-config requirement for Kconfig
 
  - change missing depmod to a warning from an error
 
  - warn modules_install when System.map is missing
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Merge tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - make setlocalversion more robust about -dirty check

 - loosen the pkg-config requirement for Kconfig

 - change missing depmod to a warning from an error

 - warn modules_install when System.map is missing

* tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: modules_install: warn when missing System.map file
  kbuild: make missing $DEPMOD a Warning instead of an Error
  kconfig: do not require pkg-config on make {menu,n}config
  kconfig: remove a spurious self-assignment
  scripts/setlocalversion: git: Make -dirty check more robust
2018-09-09 05:42:11 -07:00
Linus Torvalds
d7b686ebf7 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:

 - bugfixes for uniphier, i801, and xiic drivers

 - ID removal (never produced) for imx

 - one MAINTAINER addition

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: xiic: Record xilinx i2c with Zynq fragment
  i2c: xiic: Make the start and the byte count write atomic
  i2c: i801: fix DNV's SMBCTRL register offset
  i2c: imx-lpi2c: Remove mx8dv compatible entry
  dt-bindings: imx-lpi2c: Remove mx8dv compatible entry
  i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP
  i2c: uniphier: issue STOP only for last message or I2C_M_STOP
2018-09-07 17:30:40 -07:00
Florian Fainelli
98cdb48071 net: dsa: Expose tagging protocol to user-space
There is no way for user-space to know what a given DSA network device's
tagging protocol is. Expose this information through a dsa/tagging
attribute which reflects the tagging protocol currently in use.

This is helpful for configuration (e.g: none behaves dramatically
different wrt. bridges) as well as for packet capture tools when there
is not a proper Ethernet type available.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-07 14:49:55 -07:00
Heinz Mauelshagen
5380c05b68 dm raid: bump target version, update comments and documentation
Bump target version to reflect the documented fixes are available.
Also fix some code comments (typos and clarity).

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2018-09-06 17:07:58 -04:00
Linus Torvalds
f4697d9a8a SCSI fixes on 20180905
A set of very minor fixes and a couple of reverts to fix a major
 problem (the attempt to change the busy count causes a hang when
 attempting to change the drive cache type).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A set of very minor fixes and a couple of reverts to fix a major
  problem (the attempt to change the busy count causes a hang when
  attempting to change the drive cache type)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: aacraid: fix a signedness bug
  Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq"
  Revert "scsi: core: fix scsi_host_queue_ready"
  scsi: libata: Add missing newline at end of file
  scsi: target: iscsi: cxgbit: use pr_debug() instead of pr_info()
  scsi: hpsa: limit transfer length to 1MB, not 512kB
  scsi: lpfc: Correct MDS diag and nvmet configuration
  scsi: lpfc: Default fdmi_on to on
  scsi: csiostor: fix incorrect port capabilities
  scsi: csiostor: add a check for NULL pointer after kmalloc()
  scsi: documentation: add scsi_mod.use_blk_mq to scsi-parameters
  scsi: core: Update SCSI_MQ_DEFAULT help text to match default
2018-09-05 09:17:20 -07:00
David S. Miller
36302685f5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
Linus Torvalds
28619527b8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Must perform TXQ teardown before unregistering interfaces in
    mac80211, from Toke Høiland-Jørgensen.

 2) Don't allow creating mac80211_hwsim with less than one channel, from
    Johannes Berg.

 3) Division by zero in cfg80211, fix from Johannes Berg.

 4) Fix endian issue in tipc, from Haiqing Bai.

 5) BPF sockmap use-after-free fixes from Daniel Borkmann.

 6) Spectre-v1 in mac80211_hwsim, from Jinbum Park.

 7) Missing rhashtable_walk_exit() in tipc, from Cong Wang.

 8) Revert kvzalloc() conversion of AF_PACKET, it breaks mmap() when
    kvzalloc() tries to use kmalloc() pages. From Eric Dumazet.

 9) Fix deadlock in hv_netvsc, from Dexuan Cui.

10) Do not restart timewait timer on RST, from Florian Westphal.

11) Fix double lwstate refcount grab in ipv6, from Alexey Kodanev.

12) Unsolicit report count handling is off-by-one, fix from Hangbin Liu.

13) Sleep-in-atomic in cadence driver, from Jia-Ju Bai.

14) Respect ttl-inherit in ip6 tunnel driver, from Hangbin Liu.

15) Use-after-free in act_ife, fix from Cong Wang.

16) Missing hold to meta module in act_ife, from Vlad Buslov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (91 commits)
  net: phy: sfp: Handle unimplemented hwmon limits and alarms
  net: sched: action_ife: take reference to meta module
  act_ife: fix a potential use-after-free
  net/mlx5: Fix SQ offset in QPs with small RQ
  tipc: correct spelling errors for tipc_topsrv_queue_evt() comments
  tipc: correct spelling errors for struct tipc_bc_base's comment
  bnxt_en: Do not adjust max_cp_rings by the ones used by RDMA.
  bnxt_en: Clean up unused functions.
  bnxt_en: Fix firmware signaled resource change logic in open.
  sctp: not traverse asoc trans list if non-ipv6 trans exists for ipv6_flowlabel
  sctp: fix invalid reference to the index variable of the iterator
  net/ibm/emac: wrong emac_calc_base call was used by typo
  net: sched: null actions array pointer before releasing action
  vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition
  r8169: add support for NCube 8168 network card
  ip6_tunnel: respect ttl inherit for ip6tnl
  mac80211: shorten the IBSS debug messages
  mac80211: don't Tx a deauth frame if the AP forbade Tx
  mac80211: Fix station bandwidth setting after channel switch
  mac80211: fix a race between restart and CSA flows
  ...
2018-09-04 12:45:11 -07:00
Quentin Schulz
e02eef317d dt-bindings: net: phy: mscc: vsc8531: factorize vsc8531, led-N-mode
VSC8584 supports 4 LEDs while VSC8531 only supports 2. Let's factorize
the documentation for LED mode properties and give the 4 default values
(the first two being shared between VSC8531 and VSC8584).

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-04 10:47:53 -07:00
Quentin Schulz
4bdbacfda6 dt-bindings: net: phy: mscc: vsc8531: remove compatible from required properties
Compatible isn't a required property for PHYs so let's remove it from
the binding DT of the VSC8531 PHYs.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-04 10:47:53 -07:00
David Gounaris
045f77baf6 net/wan/fsl_ucc_hdlc: hmask
Ability to set hmask in the device-tree,
which can be used to change address
filtering of packets.

Signed-off-by: David Gounaris <david.gounaris@infinera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-03 22:14:41 -07:00
Fabio Estevam
f6eb893490 dt-bindings: imx-lpi2c: Remove mx8dv compatible entry
mx8dv never entered into production and there is no other place
in the kernel referring to this SoC, so remove it from the
dt bindings documentation.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-09-02 23:50:43 +02:00
Tony Lindgren
10d7fac4c5 dt-bindings: net: cpsw: Document cpsw-phy-sel usage but prefer phandle
The current cpsw usage for cpsw-phy-sel is undocumented but is used for
all the boards using cpsw. And cpsw-phy-sel is not really a child of
the cpsw device, it lives in the system control module instead.

Let's document the existing usage, and improve it a bit where we prefer
to use a phandle instead of a child device for it. That way we can
properly describe the hardware in dts files for things like genpd.

Cc: devicetree@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-02 13:52:13 -07:00
Masahiro Yamada
fd65465b70 kconfig: do not require pkg-config on make {menu,n}config
Meelis Roos reported a {menu,n}config regression:
 "I have libncurses devel package installed in the default system
  location (as do 99%+ on actual developers probably) and in this
  case, pkg-config is useless.  pkg-config is needed only when
  libraries and headers are installed in non-default locations but
  it is bad to require installation of pkg-config on all the machines
  where make menuconfig would be possibly run."

For {menu,n}config, do not use pkg-config if it is not installed.
For {g,x}config, keep checking pkg-config since we really rely on it
for finding the installation paths of the required packages.

Fixes: 4ab3b80159 ("kconfig: check for pkg-config on make {menu,n,g,x}config")
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Meelis Roos <mroos@linux.ee>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2018-09-03 02:13:48 +09:00
Ioana Radulescu
34ff68465a dpaa2-eth: Move DPAA2 Ethernet driver from staging to drivers/net
The DPAA2 Ethernet driver supports Freescale/NXP SoCs with DPAA2
(DataPath Acceleration Architecture v2). The driver manages
network objects discovered on the fsl-mc bus.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-01 17:16:59 -07:00
Linus Torvalds
360bd62dc4 linux-watchdog 4.19-rc2 tag
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Merge tag 'linux-watchdog-4.19-rc2' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixlet from Wim Van Sebroeck:
 "Document support for r8a774a1"

* tag 'linux-watchdog-4.19-rc2' of git://www.linux-watchdog.org/linux-watchdog:
  dt-bindings: watchdog: renesas-wdt: Document r8a774a1 support
2018-09-01 13:17:15 -07:00
Kees Cook
9b25436662 random: make CPU trust a boot parameter
Instead of forcing a distro or other system builder to choose
at build time whether the CPU is trusted for CRNG seeding via
CONFIG_RANDOM_TRUST_CPU, provide a boot-time parameter for end users to
control the choice. The CONFIG will set the default state instead.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2018-09-01 12:51:54 -04:00
Linus Torvalds
420f51f4ab A handful of arm64 fixes
- Fix typos in SVE documentation
 - Fix type-checking and implicit truncation for SMCCC calls
 - Force CONFIG_HOLES_IN_ZONE=y so that SLAB doesn't fall over NOMAP regions
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "A few arm64 fixes came in this week, specifically fixing some nasty
  truncation of return values from firmware calls and resolving a
  VM_BUG_ON due to accessing uninitialised struct pages corresponding to
  NOMAP pages.

  Summary:

   - Fix typos in SVE documentation

   - Fix type-checking and implicit truncation for SMCCC calls

   - Force CONFIG_HOLES_IN_ZONE=y so that SLAB doesn't fall over NOMAP
     regions"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: always enable CONFIG_HOLES_IN_ZONE
  arm/arm64: smccc-1.1: Handle function result as parameters
  arm/arm64: smccc-1.1: Make return values unsigned long
  Documentation/arm64/sve: Couple of improvements and typos
2018-08-31 09:20:30 -07:00
Linus Torvalds
4290d5b9ca xen: fixes for 4.19-rc2
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Merge tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - minor cleanup avoiding a warning when building with new gcc

 - a patch to add a new sysfs node for Xen frontend/backend drivers to
   make it easier to obtain the state of a pv device

 - two fixes for 32-bit pv-guests to avoid intermediate L1TF vulnerable
   PTEs

* tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: remove redundant variable save_pud
  xen: export device state to sysfs
  x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear
  x86/xen: don't write ptes directly in 32-bit PV guests
2018-08-31 08:45:16 -07:00
Linus Torvalds
754cf4b243 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:

 - regression fixes for i801 and designware

 - better API and leak fix for releasing DMA safe buffers

 - better greppable strings for the bitbang algorithm

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: sh_mobile: fix leak when using DMA bounce buffer
  i2c: sh_mobile: define start_ch() void as it only returns 0 anyhow
  i2c: refactor function to release a DMA safe buffer
  i2c: algos: bit: make the error messages grepable
  i2c: designware: Re-init controllers with pm_disabled set on resume
  i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus
2018-08-31 08:38:53 -07:00
Wolfram Sang
82fe39a6bc i2c: refactor function to release a DMA safe buffer
a) rename to 'put' instead of 'release' to match 'get' when obtaining
   the buffer
b) change the argument order to have the buffer as first argument
c) add a new argument telling the function if the message was
   transferred. This allows the function to be used also in cases
   where setting up DMA failed, so the buffer needs to be freed without
   syncing to the message buffer.

Also convert the only user.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-08-30 23:13:15 +02:00