Commit Graph

104847 Commits

Author SHA1 Message Date
David S. Miller
6e03f896b5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/vxlan.c
	drivers/vhost/net.c
	include/linux/if_vlan.h
	net/core/dev.c

The net/core/dev.c conflict was the overlap of one commit marking an
existing function static whilst another was adding a new function.

In the include/linux/if_vlan.h case, the type used for a local
variable was changed in 'net', whereas the function got rewritten
to fix a stacked vlan bug in 'net-next'.

In drivers/vhost/net.c, Al Viro's iov_iter conversions in 'net-next'
overlapped with an endainness fix for VHOST 1.0 in 'net'.

In drivers/net/vxlan.c, vxlan_find_vni() added a 'flags' parameter
in 'net-next' whereas in 'net' there was a bug fix to pass in the
correct network namespace pointer in calls to this function.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 14:33:28 -08:00
Linus Torvalds
f3c2352df1 PCI updates for v3.19:
Enumeration
     - Scan all device numbers on NEC as well as Stratus (Charlotte Richardson)
 
   Resource management
     - Handle read-only BARs on AMD CS553x devices (Myron Stowe)
 
   Synopsys DesignWare
     - Reject MSI-X IRQs (Lucas Stach)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJU0m7MAAoJEFmIoMA60/r8zQoP/iZpoDfkIrvJWhLjRO1agVCd
 7Y5Hrzr+AmESq4n3D7IQt7c+wzaR+05gOG/orDvaFfpbUMamTHlFxUjsk7ib3lLv
 Qg+WUX/I444pt/jDxRlqZbqWC8AkvYrTWPZoR+fagdWMuIGnKYNvjIAdmzRgMwB0
 C3AFGa1S61tqD0+b2Dc177vPZowOUgPBq+ta0Ld8RJ7zBfNnL/GdgCqWxo0OyPNv
 uSeQuCmKEL5J1Sn1D+j0EKL5FdSDN+LJeU4k5hdF3I+GaervFkOYVqstAqv1kqML
 2I9LBjMndRueseArqq7oCAeMn+lCEqleiYr+Y0DtlLOo68eZzh2YWNRV/PcRGMnj
 xOJo59rDSw5amg4baL7DVdPFIW3NGZiVThNiM3ye5CuhfAl3U/PY1xiDxQ85KY2F
 htc5rhnm1b9dE5LrJN0iChX4fT60sYyc4IMHuu3wuS5fRNDgZWscs0TT6GSIXSCH
 ua1xiaq0hLc8XoWdV0A/7R9kX37KJ0kyjCmSFJV/uVWKgKpS3eGi6Ex67qCU1w0C
 Vw2JT/H8V7vbNCpF/+8fYhXYzsTx6Oa0qLfcBEgT7xxjPTMTsH0LUW0wAivL60rV
 J9PPcIBrDui6fBVLDkOlgMBjokkShkSay0MUuaUaZib3BdcDY14RVfm8K8MhYS/I
 ViaWaM1bQ4DGzjnz5dQg
 =hsLb
 -----END PGP SIGNATURE-----

Merge tag 'pci-v3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Enumeration
    - Scan all device numbers on NEC as well as Stratus (Charlotte Richardson)

  Resource management
    - Handle read-only BARs on AMD CS553x devices (Myron Stowe)

  Synopsys DesignWare
    - Reject MSI-X IRQs (Lucas Stach)"

* tag 'pci-v3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Handle read-only BARs on AMD CS553x devices
  PCI: Add NEC variants to Stratus ftServer PCIe DMI check
  PCI: designware: Reject MSI-X IRQs
2015-02-05 10:23:12 -08:00
Linus Torvalds
5659c0e470 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A number of ARM fixes, the biggest is fixing a regression caused by
  appended DT blobs exceeding 64K, causing the decompressor fixup code
  to fail to patch the DT blob.  Another important fix is for the ASID
  allocator from Will Deacon which prevents some rare crashes seen on
  some systems.  Lastly, there's a build fix for v7M systems when printk
  support is disabled.

  The last two remaining fixes are more cosmetic - the IOMMU one
  prevents an annoying harmless warning message, and we disable the
  kernel strict memory permissions on non-MMU which can't support it
  anyway"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8299/1: mm: ensure local active ASID is marked as allocated on rollover
  ARM: 8298/1: ARM_KERNMEM_PERMS only works with MMU enabled
  ARM: 8295/1: fix v7M build for !CONFIG_PRINTK
  ARM: 8294/1: ATAG_DTB_COMPAT: remove the DT workspace's hardcoded 64KB size
  ARM: 8288/1: dma-mapping: don't detach devices without an IOMMU during teardown
2015-02-04 09:42:55 -08:00
Will Deacon
8e64806672 ARM: 8299/1: mm: ensure local active ASID is marked as allocated on rollover
Commit e1a5848e33 ("ARM: 7924/1: mm: don't bother with reserved ttbr0
when running with LPAE") removed the use of the reserved TTBR0 value
for LPAE systems, since the ASID is held in the TTBR and can be updated
atomicly with the pgd of the next mm.

Unfortunately, this patch forgot to update flush_context, which
deliberately avoids marking the local active ASID as allocated, since we
used to switch via ASID zero and didn't need to allocate the ASID of
the previous mm. The side-effect of this is that we can allocate the
same ASID to the next mm and, between flushing the local TLB and updating
TTBR0, we can perform speculative TLB fills for userspace nG mappings
using the page table of the previous mm.

The consequence of this is that the next mm can erroneously hit some
mappings of the previous mm. Note that this was made significantly
harder to hit by a391263cd8 ("ARM: 8203/1: mm: try to re-use old ASID
assignments following a rollover") but is still theoretically possible.

This patch fixes the problem by removing the code from flush_context
that forces the allocated ASID to zero for the local CPU. Many thanks
to the Broadcom guys for tracking this one down.

Fixes: e1a5848e33 ("ARM: 7924/1: mm: don't bother with reserved ttbr0 when running with LPAE")

Cc: <stable@vger.kernel.org> # v3.14+
Reported-by: Raymond Ngun <rngun@broadcom.com>
Tested-by: Raymond Ngun <rngun@broadcom.com>
Reviewed-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-02-03 12:57:33 +00:00
Charlotte Richardson
51ac3d2f0c PCI: Add NEC variants to Stratus ftServer PCIe DMI check
NEC OEMs the same platforms as Stratus does, which have multiple devices on
some PCIe buses under downstream ports.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=51331
Fixes: 1278998f8f ("PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)")
Signed-off-by: Charlotte Richardson <charlotte.richardson@stratus.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v3.5+
CC: Myron Stowe <myron.stowe@redhat.com>
2015-02-02 09:36:23 -06:00
Linus Torvalds
fba7e99458 ARM: SoC fixes
One more week's worth of fixes. Worth pointing out here are:
 
 - A patch fixing detaching of iommu registrations when a device is removed --
   earlier the ops pointer wasn't managed properly
 - Another set of Renesas boards get the same GIC setup fixup as others have in
   previous -rcs
 - Serial port aliases fixups for sunxi. We did the same to tegra but we
   caught that in time before the merge window due to more machines being
   affected. Here it took longer for anyone to notice.
 - A couple more DT tweaks on sunxi
 - A follow-up patch for the mvebu coherency disabling in last -rc batch
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUzl/yAAoJEIwa5zzehBx3/v0P/iU4sCz/HYBwL46lSZZLnFyX
 RDFiq+I6nQFM3CG6oRn0gEi+/GbdyQ/Q6kMbver216pSfymZ+agRFaA6oj1o4HRD
 FQ2Dtz2ytvdkO8uSUzIV+nLJ//3MMwxmXTnB7SrDuzy6VeJ6GHlxxp39jrPCWtgi
 z7eo1bAuEKRQpVqJLBbqaNTsc4+9990zcgz5ChvfCqOvY3rE/AElEF5CMk71TFHW
 NTZQGM/HWteehA3/vTODICrd5SqV3peNAe3n6OMnZEEniUCesnug6IamUMwqKWVb
 y8rgobVV6ow5F0Cr3Zxc9Ufj8R1yayRQoGOdzDfuQ+zPivi2NbseinQgMUVujXYh
 TE/Ea4j+V1bYSY6EA89pAjw2C6e7fIWPOUJbO9hj5Ywc+uzR+ns+GFR2AaBggpFu
 4h0ig0ceOkzTgDWW0fNhH6BysvvczErT1CD0l6B+QgUZQadbSCFcGe8k2pNuJvYG
 f2lq6zUBIaNY5ZO6gu9inrd8UxjutKZM1p80fZc+tCFrm5YfHLFLwJPqfG7+8iEW
 R5OoQ1Jjb5SdO7u1yH2znQtlM9Z1u7bGQ7BkWPfZ0XbkHqiVgCpBUigzlRSgFO0+
 1rITIcwKgfdv8Sw4yngO6C3zFzn9Jz/cvGtW+gEjmSDV0BlhWCfWkTWys3ocdO79
 JSToPOtd87iekn7nHLBY
 =nw2v
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "One more week's worth of fixes.  Worth pointing out here are:

   - A patch fixing detaching of iommu registrations when a device is
     removed -- earlier the ops pointer wasn't managed properly
   - Another set of Renesas boards get the same GIC setup fixup as
     others have in previous -rcs
   - Serial port aliases fixups for sunxi.  We did the same to tegra but
     we caught that in time before the merge window due to more machines
     being affected.  Here it took longer for anyone to notice.
   - A couple more DT tweaks on sunxi
   - A follow-up patch for the mvebu coherency disabling in last -rc
     batch"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
  ARM: sunxi: dt: Fix aliases
  ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
  ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
  ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i
2015-02-01 13:20:47 -08:00
Olof Johansson
28111dda37 Third Round of Renesas ARM Based SoC Fixes for v3.19
* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUytABAAoJENfPZGlqN0++qrkP/R2n+rHBNvZTW4p88IZcZ37O
 7zRXCkcXLHHVfKp8XHEMrhH/Pc7uIonWgq3SIKHDlK9UwAvfOdLPj2CMGm7bN+Ea
 +fgT6Qe1UP9kgbsH1whovsR3CzjLDqxmlhfjTkrmu5UjFNGQuv/iFVkkzViSCDYd
 YkSIYxybAlH3Nd7xxNFG54LzjCPauY2V76JM76/3j24m+zxZverY8sN46PtKryGg
 /toQzuVeimpz4BtObXZAi7Y7eWvvYUtELGshTTGKBmtRhLWGZDrS+60KpMDVoKtK
 f135X2taKm2jIiKPXCPMQTOWsXBls1TuxIGssiIysPU6t5OCSuNd/M1RiKDhZhE3
 J4L4vCMq/Gn2XbYe2+O0PNkLxuWepSZ4VRzALZCPhP48CYGrazP63JWTnjROcC61
 5bxuUtWMUVHF52hEWf6bXEiAEBNZP7u8kBc02drsscQHM/N3SiFcIxK/nGlIVMjy
 Qt01fYR+zZZ2v5OhQHeEe7lBfUMnKA9+QLHR4dJ32oJvyAFiDImLsrEBiVlTDk47
 gYJXmqGp2GWgB1H2mDiopHg+ERsavK9P7FL9juYG3OdvFPFuQwktJDSpN+Y0GZMV
 wRADV2/ylZBw48DidX86TD3gwtV7gP995nHvQJ2nv+/Kjq58uR4AHwn0wVHPldCE
 cDf5IYwdvD0a42id6zb5
 =/Oq9
 -----END PGP SIGNATURE-----

Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:

* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4

* tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-02-01 08:51:12 -08:00
Tony Lindgren
f276c0ce5d net: davinci_emac: Get device MAC on 3517
Looks like on 3517 davinci_emac MAC address registers have a
different layout compared to dm816x and am33xx.

Let's add a function to get the 3517 MAC address.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-30 17:42:01 -08:00
Linus Torvalds
6155bc1431 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, but also an event groups fix, two PMU driver
  fixes and a CPU model variant addition"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Tighten (and fix) the grouping condition
  perf/x86/intel: Add model number for Airmont
  perf/rapl: Fix crash in rapl_scale()
  perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization
  perf probe: Fix probing kretprobes
  perf symbols: Introduce 'for' method to iterate over the symbols with a given name
  perf probe: Do not rely on map__load() filter to find symbols
  perf symbols: Introduce method to iterate symbols ordered by name
  perf symbols: Return the first entry with a given name in find_by_name method
  perf annotate: Fix memory leaks in LOCK handling
  perf annotate: Handle ins parsing failures
  perf scripting perl: Force to use stdbool
  perf evlist: Remove extraneous 'was' on error message
2015-01-30 14:34:55 -08:00
Linus Torvalds
1f59fe7667 The ARM changes are largish, but not too scary. And a simple fix
for x86 (bug introduced in 3.19).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJUy2ulAAoJEL/70l94x66D18kIAJhuh2k5Mt3TfP/zfhi2Y6ER
 IAZqyFODs8txZ3v432PB8yWWvr2XfJ3gwfjvurLygQJ3jCGZqDrmucbUUXzEaPUk
 mPnLpxV0ZEmNweS2HLGPX9HJ6zfsZ1dHRk55Tko9ynAO731q7yPjj6HC0th8wzvE
 BRv5y/18rY2zyar+5Azpj5wpOSllq0ynMgjWXGSlaTLbQoyvgZtzbqNY6nsAGrKw
 e8hSUPogfGUmZkBHHHVDYKpgHvWS1hARyuGFo8LeKXKPo7qhYxZHCDpch8TXnq2y
 21IvQfYddGpcMsaTroA5qyXFigxCX+1j3po6MS3ZH9GGXS5fC3sI8t0EDxKiO6Q=
 =O4X0
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "The ARM changes are largish, but not too scary.  And a simple fix for
  x86 (bug introduced in 3.19)"

(Paolo sayus these are the "Final" fixes. We'll see).

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: check LAPIC presence when building apic_map
  arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
  arm/arm64: KVM: Invalidate data cache on unmap
  arm/arm64: KVM: Use set/way op trapping to track the state of the caches
2015-01-30 10:45:24 -08:00
Guenter Roeck
e262eb9381 arc: mm: Fix build failure
Fix misspelled define.

Fixes: 33692f2759 ("vm: add VM_FAULT_SIGSEGV handling support")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-30 10:31:14 -08:00
Radim Krčmář
df04d1d191 KVM: x86: check LAPIC presence when building apic_map
We forgot to re-check LAPIC after splitting the loop in commit
173beedc16 (KVM: x86: Software disabled APIC should still deliver
NMIs, 2014-11-02).

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Fixes: 173beedc16
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-30 12:28:31 +01:00
Paolo Bonzini
02512b2bd6 Second round of fixes for KVM/ARM for 3.19.
Fixes memory corruption issues on APM platforms and swapping issues on
 DMA-coherent systems.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJUyrVCAAoJEEtpOizt6ddy/rgH/1gFfX3zGryDYwbFz2BbnMk8
 zJeQfeaOD4TF/6k8UZctrJatoqPgMCmVMAbT7uuZ+zwOYPYDGijGeJOYKS6IcIcj
 Lhl0QjbwBUaC58jZhhKGStZTKV2w9L7JK3RFStw+cE2HAAKcZQSVdfnM7ZoyyaRC
 qbFqPXLppSSZXD1R+/F17+mM8bogRmdS4we0o7J1KCT6hWbnK1CJkScxXLapbl5Y
 tKZSMM+k+L7wvgDnuzepTY+rFna3LSLQXNli0nPX9ByRFR4nMjeJKwm68kOaTU1r
 y1naOS3F6kl7S0OiCzyzekM4U330MAVmTyvlT9GHAHCVyjzavGQuuBFHdcdnvvc=
 =rJUG
 -----END PGP SIGNATURE-----

Merge tag 'kvm-arm-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

Second round of fixes for KVM/ARM for 3.19.

Fixes memory corruption issues on APM platforms and swapping issues on
DMA-coherent systems.
2015-01-30 09:41:38 +01:00
Marc Zyngier
0d3e4d4fad arm/arm64: KVM: Use kernel mapping to perform invalidation on page fault
When handling a fault in stage-2, we need to resync I$ and D$, just
to be sure we don't leave any old cache line behind.

That's very good, except that we do so using the *user* address.
Under heavy load (swapping like crazy), we may end up in a situation
where the page gets mapped in stage-2 while being unmapped from
userspace by another CPU.

At that point, the DC/IC instructions can generate a fault, which
we handle with kvm->mmu_lock held. The box quickly deadlocks, user
is unhappy.

Instead, perform this invalidation through the kernel mapping,
which is guaranteed to be present. The box is much happier, and so
am I.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:57 +01:00
Marc Zyngier
363ef89f8e arm/arm64: KVM: Invalidate data cache on unmap
Let's assume a guest has created an uncached mapping, and written
to that page. Let's also assume that the host uses a cache-coherent
IO subsystem. Let's finally assume that the host is under memory
pressure and starts to swap things out.

Before this "uncached" page is evicted, we need to make sure
we invalidate potential speculated, clean cache lines that are
sitting there, or the IO subsystem is going to swap out the
cached view, loosing the data that has been written directly
into memory.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:56 +01:00
Marc Zyngier
3c1e716508 arm/arm64: KVM: Use set/way op trapping to track the state of the caches
Trying to emulate the behaviour of set/way cache ops is fairly
pointless, as there are too many ways we can end-up missing stuff.
Also, there is some system caches out there that simply ignore
set/way operations.

So instead of trying to implement them, let's convert it to VA ops,
and use them as a way to re-enable the trapping of VM ops. That way,
we can detect the point when the MMU/caches are turned off, and do
a full VM flush (which is what the guest was trying to do anyway).

This allows a 32bit zImage to boot on the APM thingy, and will
probably help bootloaders in general.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2015-01-29 23:24:56 +01:00
Laurent Pinchart
eab8d6530c arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
Commit 4bb25789ed ("arm: dma-mapping: plumb our iommu mapping ops
into arch_setup_dma_ops") moved the setting of the DMA operations from
arm_iommu_attach_device() to arch_setup_dma_ops() where the DMA
operations to be used are selected based on whether the device is
connected to an IOMMU. However, the IOMMU detection scheme requires the
IOMMU driver to be ported to the new IOMMU of_xlate API. As no driver
has been ported yet, this effectively breaks all IOMMU ARM users that
depend on the IOMMU being handled transparently by the DMA mapping API.

Fix this by restoring the setting of DMA IOMMU ops in
arm_iommu_attach_device() and splitting the rest of the function into a
new internal __arm_iommu_attach_device() function, called by
arch_setup_dma_ops().

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-29 10:56:27 -08:00
Linus Torvalds
33692f2759 vm: add VM_FAULT_SIGSEGV handling support
The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.

That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works.  However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.

In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV.  And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.

However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d45 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space.  And user space really
expected SIGSEGV, not SIGBUS.

To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it.  They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.

This is the mindless minimal patch to do this.  A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.

Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-29 10:51:32 -08:00
Arnd Bergmann
fba289054f ARM: 8298/1: ARM_KERNMEM_PERMS only works with MMU enabled
The recently added ARM_KERNMEM_PERMS feature works by manipulating
the kernel page tables, which obviously requires an MMU. Trying
to enable this feature when the MMU is disabled results in a lot
of compile errors in mm/init.c, so let's add a Kconfig dependency
to avoid that case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-29 15:23:31 +00:00
Rob Herring
ed46092518 ARM: 8295/1: fix v7M build for !CONFIG_PRINTK
Minimal builds for v7M are broken when printk is disabled. The caller is
assembly so add the necessary ifdef around the call.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-29 15:23:12 +00:00
Nicolas Pitre
c2607f74aa ARM: 8294/1: ATAG_DTB_COMPAT: remove the DT workspace's hardcoded 64KB size
There is currently a hardcoded limit of 64KB for the DTB to live in and
be extended with ATAG info.  Some DTBs have outgrown that limit:

$ du -b arch/arm/boot/dts/omap3-n900.dtb
70212   arch/arm/boot/dts/omap3-n900.dtb

Furthermore, the actual size passed to atags_to_fdt() included the stack
size which is obviously wrong.

The initial DTB size is known, so use it to size the allocated workspace
with a 50% growth assumption and relocate the temporary stack above that.
This is also clamped to 32KB min / 1MB max for robustness against bad
DTB data.

Reported-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-29 15:23:01 +00:00
Will Deacon
c2273a1853 ARM: 8288/1: dma-mapping: don't detach devices without an IOMMU during teardown
When tearing down the DMA ops for a device via of_dma_deconfigure, we
unconditionally detach the device from its IOMMU domain. For devices
that aren't actually behind an IOMMU, this produces a "Not attached"
warning message on the console.

This patch changes the teardown code so that we don't detach from the
IOMMU domain when there isn't an IOMMU dma mapping to start with.

Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-29 15:22:44 +00:00
Magnus Damm
77cf5166f2 ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), the Lager legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-multiplatform r8a7790 and Lager:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on Lager are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-29 17:52:38 +09:00
Magnus Damm
974b072f71 ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
As of commit 9a1091ef00 ("irqchip: gic: Support hierarchy irq
domain."), the APE6EVM legacy board support is known to be broken.

The IRQ numbers of the GIC are now virtual, and no longer match the
hardcoded hardware IRQ numbers in the legacy platform board code.

To fix this issue specific to non-muliplatform r8a73a4 and APE6EVM:
 1) Instantiate the GIC from platform board code and also
 2) Skip over the DT arch timer as well as
 3) Force delay setup based on DT CPU frequency

With these 3 fixes in place interrupts on APE6EVM are now unbroken.

Partially based on legacy GIC fix by Geert Uytterhoeven, thanks to
him for the initial work.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-29 09:34:51 +09:00
Olof Johansson
764e2c70ef The previous fix for Armada XP, disabling I/O coherency, broke Armada
375/38x.  Only switch the PL310 to I/O coherent mode if I/O coherency
 is enabled.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJUyRueAAoJEOa/DcumaUyEvqAP/AuTbrPtd7LeiZBvCfEBBs+C
 bDT+TjksyMBMZEjQ4OFNQTj4NSLsL4RqfUrfTFkg6RJ0pjviD80saNkfKy8bByPR
 WduY4AhSgks07YI79Nu8cKGUO/iEuxztnCZQWi5b5wNideY9z+Ta3k46Z26VfRwc
 NCQsT2PLKpVmTnIlhi6ilLHsqRAwsV0An+swEyAZXVBAbfKpoWOHxrfR7wVO9oSa
 3dFmnxFcF3/pavtIbL5wIHkGSsjlSi8sdCvieWdf186p8ubuV5TNyuRme0msbaAf
 JBJCNorSepP9vNCb2cCaEOcq+/A/f3NZAX256zGHcyvg6B9Ntq324MVj0sZd+dSo
 nAeJYQvgwD10HvZGj4kCAL11Fc45chnGoo1iPGuxvzF6nKI5liINMnAmU8VPhnZX
 swL3M2k69T14QutS+FbEN/6RGOQAWHZoXQ5YxFwFqei2I7j7g0QJvemwrfFkTwQj
 bPyOE2op6fPpgJyGedM5icU8KesCkORNuu0lRWT9v5rU51epwdna3lcProtuBOA2
 fq/WXb0mC/poyToIEJJZHOLJU7jZy2D+WMKBpu3imiKYBv29qShT9Mah22msySfY
 YY9luHCQMWuT5zVVNFA/SMa8sQbpfxbNngen3iW79WK3LHVP9B6I/dfrn3F/BXXq
 qtYwwNYQqf9kuI0nyy1H
 =qzYQ
 -----END PGP SIGNATURE-----

Merge tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu-fixes-6" from Andrew Lunn:

The previous fix for Armada XP, disabling I/O coherency, broke Armada
375/38x.  Only switch the PL310 to I/O coherent mode if I/O coherency
is enabled.

* tag 'mvebu-fixes-3.19-6' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-28 14:59:33 -08:00
Thomas Petazzoni
dcad68876c ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
Since commit f2c3c67f00 (merge commit that adds commit "ARM: mvebu:
completely disable hardware I/O coherency"), we disable I/O coherency
on Armada EBU platforms.

However, we continue to initialize the coherency fabric, because this
coherency fabric is needed on Armada XP for inter-CPU
coherency. Unfortunately, due to this, we also continued to execute
the coherency fabric initialization code for Armada 375/38x, which
switched the PL310 into I/O coherent mode. This has the effect of
disabling the outer cache sync operation: this is needed when I/O
coherency is enabled to work around a PCIe/L2 deadlock. But obviously,
when I/O coherency is disabled, having the outer cache sync operation
is crucial.

Therefore, this commit fixes the armada_375_380_coherency_init() so
that the PL310 is switched to I/O coherent mode only if I/O coherency
is enabled.

Without this fix, all devices using DMA are broken on Armada 375/38x.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: <stable@vger.kernel.org> # v3.8+
2015-01-28 11:23:56 -06:00
Kan Liang
ef454caeb7 perf/x86/intel: Add model number for Airmont
Intel Airmont supports the same architectural and non-architectural
performance monitoring events as Silvermont.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1421913053-99803-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:17:32 +01:00
Stephane Eranian
98b008dff8 perf/rapl: Fix crash in rapl_scale()
This patch fixes a systematic crash in rapl_scale()
due to an invalid pointer.

The bug was introduced by commit:

  89cbc76768 ("x86: Replace __get_cpu_var uses")

The fix is simple. Just put the parenthesis where it needs
to be, i.e., around rapl_pmu. To my surprise, the compiler
was not complaining about passing an integer instead of a
pointer.

Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Fixes: 89cbc76768 ("x86: Replace __get_cpu_var uses")
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: cl@linux.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20150122203834.GA10228@thinkpad
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:04:35 +01:00
Kan Liang
c05199e5a5 perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization
There were some issues about the uncore driver tried to access
non-existing boxes, which caused boot crashes. These issues have
been all fixed. But we should avoid boot failures if that ever
happens again.

This patch intends to prevent this kind of potential issues.
It moves uncore_box_init out of driver initialization. The box
will be initialized when it's first enabled.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421729665-5912-1-git-send-email-kan.liang@intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-28 13:04:34 +01:00
David S. Miller
95f873f2ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	arch/arm/boot/dts/imx6sx-sdb.dts
	net/sched/cls_bpf.c

Two simple sets of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-27 16:59:56 -08:00
Linus Torvalds
59343cd7c4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Don't OOPS on socket AIO, from Christoph Hellwig.

 2) Scheduled scans should be aborted upon RFKILL, from Emmanuel
    Grumbach.

 3) Fix sleep in atomic context in kvaser_usb, from Ahmed S Darwish.

 4) Fix RCU locking across copy_to_user() in bpf code, from Alexei
    Starovoitov.

 5) Lots of crash, memory leak, short TX packet et al bug fixes in
    sh_eth from Ben Hutchings.

 6) Fix memory corruption in SCTP wrt.  INIT collitions, from Daniel
    Borkmann.

 7) Fix return value logic for poll handlers in netxen, enic, and bnx2x.
    From Eric Dumazet and Govindarajulu Varadarajan.

 8) Header length calculation fix in mac80211 from Fred Chou.

 9) mv643xx_eth doesn't handle highmem correctly in non-TSO code paths.
    From Ezequiel Garcia.

10) udp_diag has bogus logic in it's hash chain skipping, copy same fix
    tcp diag used.  From Herbert Xu.

11) amd-xgbe programs wrong rx flow control register, from Thomas
    Lendacky.

12) Fix race leading to use after free in ping receive path, from Subash
    Abhinov Kasiviswanathan.

13) Cache redirect routes otherwise we can get a heavy backlog of rcu
    jobs liberating DST_NOCACHE entries.  From Hannes Frederic Sowa.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (48 commits)
  net: don't OOPS on socket aio
  stmmac: prevent probe drivers to crash kernel
  bnx2x: fix napi poll return value for repoll
  ipv6: replacing a rt6_info needs to purge possible propagated rt6_infos too
  sh_eth: Fix DMA-API usage for RX buffers
  sh_eth: Check for DMA mapping errors on transmit
  sh_eth: Ensure DMA engines are stopped before freeing buffers
  sh_eth: Remove RX overflow log messages
  ping: Fix race in free in receive path
  udp_diag: Fix socket skipping within chain
  can: kvaser_usb: Fix state handling upon BUS_ERROR events
  can: kvaser_usb: Retry the first bulk transfer on -ETIMEDOUT
  can: kvaser_usb: Send correct context to URB completion
  can: kvaser_usb: Do not sleep in atomic context
  ipv4: try to cache dst_entries which would cause a redirect
  samples: bpf: relax test_maps check
  bpf: rcu lock must not be held when calling copy_to_user()
  net: sctp: fix slab corruption from use after free on INIT collisions
  net: mv643xx_eth: Fix highmem support in non-TSO egress path
  sh_eth: Fix serialisation of interrupt disable with interrupt & NAPI handlers
  ...
2015-01-27 13:55:36 -08:00
Linus Torvalds
7da323bb45 Two powerpc fixes.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUxx7MAAoJEFHr6jzI4aWAqe0QAIGGb2mtU1gON4XtWIlYPzSu
 TZDGAK6pCeCr92tH5H3HXy7hOEbZOPQGJCqvOHMK/kcJtlkXSrW1ERDPryqEv9Xq
 V+PJMY5Tre1ga1xttyk3ny4zKmAy4UcLm6Wepi5054kB0Svo7/s2IKECwsInY/D3
 yYxSW4XUZXvCYqdZUqdQbCSgocWOfFJbPqt4kf2IiqjCPlWU1GGjpMpmqXFhTh4Y
 wuU0FtcC7db+wCvjaXs/dbCHMZqWqsQ+WCo9kz2+fLtRbthXSk0A9V96jLzah32/
 yQHqyH2+/6ZklxApjgvuQ4ZhZogU2U2PlFLfpJqiBhy+5WnkBpZtJ1lIj9hGlyC4
 pvKjrHTp0Q8+gZ8ZxuEuiKV1L+01kWbtQwg4Z5HIuulz7DfiSGatSez6CuwIeV49
 A5dQmse0bK6L4XWlB+RKyLdnj+HSPVFIcLlTPMSV/UlDp7IySphR+zp28ykyWv0C
 yGa9JUeD7hvM3Oezo88QoS4P5rk/KmQjPMhYz+ab8/eX3RCtBA1jb/KrdLm2b4tM
 sVJyuiyalL35IoOZlAh8rrKHfu1ZgXyYkJgMdccAy2yQZghmK4H8o8gdf9YWGNNq
 vEZHk+2gKI1T1o5uqvHMmkw0IWV4pE9jm3Jyo2W/pZozxR3oswOtUebCXbK+mLqy
 81GwzBWwALxbRM5HGtIr
 =cDwY
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-3.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:
 "Two powerpc fixes"

* tag 'powerpc-3.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc/powernv: Restore LPCR with LPCR_PECE1 cleared
  powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
2015-01-27 10:04:38 -08:00
Olof Johansson
c6e3324e3b Allwinner fixes for 3.19
A few minor fixes for the 3.19 kernel:
   - The 8250 uart driver now respects the aliases, which pointed out that we
     were using them wrong. Fixed them.
   - The simplefb pipeline that was used on the A10 caused flickering and
     tearing, and rendered it pretty much useless. Added a new simplefb node
     with another pipeline that removes this issue. Note that we need to keep
     the old node because u-boot 2015.01 uses it.
   - Added a fix for the USB phy node on sun4i/sun5i
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUxSO6AAoJEBx+YmzsjxAgXE0P/0ThQfyiIrgBnGKhqi+/mvS9
 IVebkyic34wsSud30b7jizfFHDkGMd0T2LVvLgXyx6BIPyD4vJ0ivhwC1rS+TCPv
 ZK+lQJgd63I35GiTdJNpEe6QJWd25lWfNSsfhprXl2tJ+UvkkRlTN3OaLSVUzb4r
 RsKQJV2ZlCnF1r8K4WDfvEa+vUgH9tChfdid3bUacRh2s+vZoxgJY50OO+g5RQuN
 BVu3zhV1C4Lmgr642EWwITvtLX+la56wMgvYfqWrK5eei356Y2BwTZuFAlj5w+3X
 HyssS4t5/kM0yubUS82bXv5caQefVpaVXKVitUDJygsyOYnQ9sXeTkfVTIaU0LGL
 GS9lKGbaAM04L69yRnwNhBztpHbAllOsOGVauIBEFweMMvclJwdmRvkd8suSwB5E
 AP54v2stJrnyNmp8AYSehQmRYOubKucZMqz8oOv15J207na7wFMpcvqPO5u3DqGM
 Hi/cHS6kejlLPoz5dff732KhRKQs6ZNK9q3gagZEKQHnJ75cKDLmZB/Zkj8fChXL
 RsSEphU3XV092CxUrdmzbcR2NPnvN8gVIXWY4BPxGsbdi/heY+MyxAO5zBHMdUIt
 v/CoJRDtsWug8zUqylFHY8xJuzK0uNgXiocnCpuEgwbooOFAEcUBetEiUgOJ7XtT
 j3HSY2p1tridaGigU/Hp
 =JLlc
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-fixes-for-3.19' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Merge "Allwinner fixes for 3.19" from Maxime Ripard:

Allwinner fixes for 3.19

A few minor fixes for the 3.19 kernel:
  - The 8250 uart driver now respects the aliases, which pointed out that we
    were using them wrong. Fixed them.
  - The simplefb pipeline that was used on the A10 caused flickering and
    tearing, and rendered it pretty much useless. Added a new simplefb node
    with another pipeline that removes this issue. Note that we need to keep
    the old node because u-boot 2015.01 uses it.
  - Added a fix for the USB phy node on sun4i/sun5i

* tag 'sunxi-fixes-for-3.19' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: dt: Fix aliases
  ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
  ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
  ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-26 20:19:27 -08:00
Kees Cook
d69911a68c x86, build: replace Perl script with Shell script
Commit e6023367d7 ("x86, kaslr: Prevent .bss from overlaping initrd")
added Perl to the required build environment.  This reimplements in
shell the Perl script used to find the size of the kernel with bss and
brk added.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Rob Landley <rob@landley.net>
Acked-by: Rob Landley <rob@landley.net>
Cc: Anca Emanuel <anca.emanuel@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Junjie Mao <eternal.n08@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-26 13:37:18 -08:00
Linus Torvalds
14746306af Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "Hopefully the last round of fixes for 3.19

   - regression fix for the LDT changes
   - regression fix for XEN interrupt handling caused by the APIC
     changes
   - regression fixes for the PAT changes
   - last minute fixes for new the MPX support
   - regression fix for 32bit UP
   - fix for a long standing relocation issue on 64bit tagged for stable
   - functional fix for the Hyper-V clocksource tagged for stable
   - downgrade of a pr_err which tends to confuse users

  Looks a bit on the large side, but almost half of it are valuable
  comments"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tsc: Change Fast TSC calibration failed from error to info
  x86/apic: Re-enable PCI_MSI support for non-SMP X86_32
  x86, mm: Change cachemode exports to non-gpl
  x86, tls: Interpret an all-zero struct user_desc as "no segment"
  x86, tls, ldt: Stop checking lm in LDT_empty
  x86, mpx: Strictly enforce empty prctl() args
  x86, mpx: Fix potential performance issue on unmaps
  x86, mpx: Explicitly disable 32-bit MPX support on 64-bit kernels
  x86, hyperv: Mark the Hyper-V clocksource as being continuous
  x86: Don't rely on VMWare emulating PAT MSR correctly
  x86, irq: Properly tag virtualization entry in /proc/interrupts
  x86, boot: Skip relocs when load address unchanged
  x86/xen: Override ACPI IRQ management callback __acpi_unregister_gsi
  ACPI: pci: Do not clear pci_dev->irq in acpi_pci_irq_disable()
  x86/xen: Treat SCI interrupt as normal GSI interrupt
2015-01-25 18:11:17 -08:00
Linus Torvalds
71a59b1272 ARM: SoC fixes
A week's worth of fixes for various ARM platforms. Diff wise, the
 largest fix is for OMAP to deal with how GIC now registers interrupts
 (irq_domain_add_legacy() -> irq_domain_add_linear() changes).
 
 Besides this, a few more renesas platforms needed the GIC instatiation
 done for legacy boards. There's also a fix that disables coherency of
 mvebu due to issues, and a few other smaller fixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUxA52AAoJEIwa5zzehBx3TL0P/ArOnYhDuaZIAQA+/tAKLt4Z
 CZJmngf7cOA42No1C6ZGvbnORZvptcYoAS/vbnVkGQUFb9H+48RHVFB2/9RYf7JR
 18SbFV594odtDfVQ4fA6ZQzx42h5rVnFPxE74Qir1LJiCO50h+Q+3+ufUBIzIrD9
 3JvUSDa/g/zkr4OEnscuZznaNzp9HH5i8pZs82PZLKn0IdOR5BuWGd0mwKul1aQt
 oR41ijskC4XTXGGLa5PvD9GFoVQ5rNaTkmwjKACRxzp+K36y21pOHDv+NPEqyEM1
 EtiXnZ0biBY4S1ICgO69NzEI3GSRTtya7z53tPxE7B4AhYkrGsweqPjNxGhvglon
 rOPxEdCNA4s1iUNgRCAkxiwEkCxXfPf4Gsl24qdcHkIaRbUhCOCrlb1QCMwDEi4v
 9uiCWEVElWhzqtj+nEpFC202w6sXUlufFMa5O97+N/qVuCAe3LCTdA8J1iD0CYmB
 rjz6bc6SclKyaSjZY2mQfwjZNFMoPNn9SItenZ4qvUi6Al/VSxpvg5DnpOwDBTnW
 eiO27Zl9B3lfys09LAKWP1q+XJOtuOt6x3GhtmFP4UaTQIHVmL0ZK3ekf6sB0P/y
 dt+Pko/NqeW7Eg7cYZcRn5mpf5DMeHHLWP13PF72SZGvOyunS/fTLDSZNPmexghT
 9ShEkFrXcX2BzAf12pxB
 =nrT2
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A week's worth of fixes for various ARM platforms.  Diff wise, the
  largest fix is for OMAP to deal with how GIC now registers interrupts
  (irq_domain_add_legacy() -> irq_domain_add_linear() changes).

  Besides this, a few more renesas platforms needed the GIC instatiation
  done for legacy boards.  There's also a fix that disables coherency of
  mvebu due to issues, and a few other smaller fixes"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: add baud rate to Juno stdout-path
  ARM: dts: imx25: Fix PWM "per" clocks
  bus: mvebu-mbus: fix support of MBus window 13
  Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes
  ARM: mvebu: completely disable hardware I/O coherency
  ARM: OMAP: Work around hardcoded interrupts
  ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds
  ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds
  arm: boot: dts: dra7: enable dwc3 suspend PHY quirk
2015-01-25 17:29:06 -08:00
Linus Torvalds
80a755545d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A couple of fixes - deadlock in CIFS and build breakage in cris serial
  driver (resurfaced f_dentry in there)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Convert file->f_dentry->d_inode to file_inode()
  fix deadlock in cifs_ioctl_clone()
2015-01-25 17:27:18 -08:00
Maxime Ripard
117a2cc38f ARM: sunxi: dt: Fix aliases
Commit f77d55a3b5 ("serial: 8250_dw: get index of serial line from DT
aliases") made the serial driver now use the serial aliases to get the tty
number, pointing out that our aliases have been wrong all along.

Remove them from the DTSI and add custom ones in the relevant boards.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-25 18:06:34 +01:00
Nimrod Andy
9143e398a4 ARM: dts: imx6sx: correct i.MX6sx sdb board enet phy address
The commit (3d125f9c91) cause i.MX6SX sdb enet cannot work. The cause is
the commit add mdio node with un-correct phy address.

The patch just correct i.MX6sx sdb board enet phy address.

V2:
* As Shawn's suggestion that unit-address should match 'reg' property, so
  update ethernet-phy unit-address.

Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-24 21:54:59 -08:00
Romain Perier
2e12f53663 net: stmmac: dwmac-rk: Use standard devicetree property for phy regulator
Currently, dwmac-rk uses a custom propety "phy_regulator" to get the name of the
right regulator to use to power on or power off the phy. This commit converts the
driver to use phy-supply devicetree property and the corresponding API, it cleans
the code a bit and make it simpler to maintain. This also replaces the property
phy_regulator by the standard property phy-supply in rk3288-evb-rk808.dts.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-24 17:17:07 -08:00
Romain Perier
68c3a884d7 ARM: dts: Add regulator voltage settings for vcc_phy in rk3288-evb.dtsi
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-24 17:17:07 -08:00
Linus Torvalds
550695925d PCI updates for v3.19:
Resource management
     - Clip bridge windows to fit in upstream windows (Yinghai Lu)
 
   Virtualization
     - Mark Atheros AR93xx to avoid using bus reset (Alex Williamson)
 
   Miscellaneous
     - Update Richard Zhu's email address (Lucas Stach)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUwqpDAAoJEFmIoMA60/r8ykIQAINgkP/iPaFMTPkTSfzTJCMY
 oQVNGha4FDt6Ic1UWGyS/sYUpywSnALxlYWxVZTm5r+sGQ2yJBo6veuxvCI09YFw
 lWqf6lfvkFSthWCo7pHLoNaIjKJUNCy4a2han31aAIScMCNX4YF60YorMSjQBST8
 smLMG75U3U9VWaXYsV1e5gTvLa5IQh4lgaTgMAOXqd+6WcAR4WwOgD2sR06o2X43
 63JF2U+ieuA789Xu2IS92TmMMESD5haEZATqdGPtxpnqyHxmBNu0Y4JkkBWD2S92
 HvveOoLBT2TBfICkftvCJscBLHh7PZMIx9nLx58SnijVzX+hzVr4Zfc96MZU50MK
 DuNbbZn3sO902ukOEpfih7Mg0tDxCxNytleEdAnXmZuqf+odbd/Y4AA0Hg6w7GEY
 OsVGbQAT/knlTfsSZsivtmUl7l1SXzrozv+q4f4szY95v34S9pm0sWzz0IBn7oKj
 h7N9Vslr3lyEudOUo1OrFq+0arDw53kwOOkIavMUH0nvTqKs4cmXBcGMfo1EfMa+
 3YhjwbgpvtZ3AXi2NSBk4gIGZEmQslvgRStLhgXVDl+9DieK+sw1Vx4cKe8gu9mD
 c7zPStEsJBJgd3v+8s8avwo8R0oPZb6MsCKFjjaYojTvpfFmfX0YyWE/TzYoUm6Z
 +BTyA8t0+3jTArTs/Zid
 =HRy7
 -----END PGP SIGNATURE-----

Merge tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are fixes for:

   - a resource management problem that causes a Radeon "Fatal error
     during GPU init" on machines where the BIOS programmed an invalid
     Root Port window.  This was a regression in v3.16.

   - an Atheros AR93xx device that doesn't handle PCI bus resets
     correctly.  This was a regression in v3.14.

   - an out-of-date email address"

* tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update Richard Zhu's email address
  sparc/PCI: Clip bridge windows to fit in upstream windows
  powerpc/PCI: Clip bridge windows to fit in upstream windows
  parisc/PCI: Clip bridge windows to fit in upstream windows
  mn10300/PCI: Clip bridge windows to fit in upstream windows
  microblaze/PCI: Clip bridge windows to fit in upstream windows
  ia64/PCI: Clip bridge windows to fit in upstream windows
  frv/PCI: Clip bridge windows to fit in upstream windows
  alpha/PCI: Clip bridge windows to fit in upstream windows
  x86/PCI: Clip bridge windows to fit in upstream windows
  PCI: Add pci_claim_bridge_resource() to clip window if necessary
  PCI: Add pci_bus_clip_resource() to clip to fit upstream window
  PCI: Pass bridge device, not bus, when updating bridge windows
  PCI: Mark Atheros AR93xx to avoid bus reset
  PCI: Add flag for devices where we can't use bus reset
2015-01-24 10:58:47 +12:00
Linus Torvalds
b8de08da04 Devicetree updates for v3.19-rc6
A few bugfixes for the new DT overlay feature, documentation updates,
 spelling corrections, and changes to MAINTAINERS. Nothing earth
 shattering here.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUwnLYAAoJEMWQL496c2LNR88P/R7PbMZndqGhThzfPkbrEUx2
 7Myb9TtIwOSdGnB2Q+QLplDEn5qhO/S37PjIhEq4lo07QTVvzSJY4x+SP+w5cXyC
 9yfEVhsLzcQb54U7G9F5MHANgaeHMPn8p70l3MWUSMiathcc/2akG9IwD4OlxR7s
 CcH/wSlzd8GTPwd2k+k2OxTTRt8PexaySpa9oHd1CzKwMENMvIexm4xFXTYDEX1f
 tyjdcPnQWe0LbzWlOMYO/N2kXb4a+ILoB5v4YJMZXi44+1bugbGLvqlNmG1UR+5d
 xEMHxgt0ukzYrtrILBiTj3IZHyluIyiz142Xah0kMj2GDrGB+NouxWuTsrZt8Bql
 4/9co1qAYSlD2pdoaBczaqum72OkIvFtJKJFsV8tNTk3aUVfi/RtHAqoWcSvvoZv
 o40VxIozMC5M14wtlPvMHF7g38mUerGL04+wXSzIUitTDZLSe5Huxg1olN0jh0zn
 G+1OsyleUnOwwFyN+e1lBxd03TTZu/8Jy01HJZub1106ch2ympfIm6V8i7UI1GZS
 RfmPE90/3JqsX9fjvCN3h4beX2mavpquPQvR85pRPsu6Fls7unSFeSU6v6J91xfb
 G1lhVgdj+PwUiMzOoOjzzs9sLejBf7Z6IJNtTQ3g+iBA4VwhkWc+e5JzheiHD76Q
 XUroHBEVAugg/iT9jmBJ
 =/bBX
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux

Pull devicetree bug fixes and documentation updates from Grant Likely:
 "A few bugfixes for the new DT overlay feature, documentation updates,
  spelling corrections, and changes to MAINTAINERS.  Nothing earth
  shattering here"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
  of/unittest: Overlays with sub-devices tests
  of/platform: Handle of_populate drivers in notifier
  of/overlay: Do not generate duplicate nodes
  devicetree: document the "qemu" and "virtio" vendor prefixes
  devicetree: document ARM bindings for QEMU's Firmware Config interface
  Documentation: of: fix typo in graph bindings
  dma-mapping: fix debug print to display correct dma_pfn_offset
  of: replace Asahi Kasei Corp vendor prefix
  ARM: dt: GIC: Spelling s/specific/specifier/, s/flaggs/flags/
  dt/bindings: arm-boards: Spelling s/pointong/pointing/
  MAINTAINERS: Update DT website and git repository
  MAINTAINERS: drop DT regex matching on of_get_property and of_match_table
2015-01-24 10:55:05 +12:00
Olof Johansson
4b3415c936 The i.MX fixes for 3.19, 2nd round:
- Correct pwm clock assignment in i.MX25 device tree to fix the broken
    pwm support on i.MX25
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJUwZrwAAoJEFBXWFqHsHzOEMoH/iIU+ChvOXbJe7DfITJiwPXG
 hjILxqR4sjcJAIfd3y67ydD4fg6wRf/Gfp3tij/Ydbjrl7TbWOaQveo7Uolr6Jaj
 MiXXOvQDyISHNoS09UjmCf8+4VSDx+5hamkWSlJTXC365RI6PAQihduvCWCUF5/Y
 GwUaZBNTOE8VMgel20BKmvGKGPwJDAw3K5jO5Lfwg2DYLDSqZEHa+kuOxgBjbRJp
 2VkrNplkVQ7QAO4HrNIuyVSXXvgSS4fJQ1unbd+EgRBkh2yLUAOlHmOXxZouYTbh
 uPr7rp2Q4pDruJj/C2O9t5ng2nnMQ6I1z54umJp+2h0VSsNOX2ZjLTHq7/SvyHE=
 =SrqB
 -----END PGP SIGNATURE-----

Merge tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.19, 2nd round" from Shawn Guo:

The i.MX fixes for 3.19, 2nd round:
 - Correct pwm clock assignment in i.MX25 device tree to fix the broken
   pwm support on i.MX25

* tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx25: Fix PWM "per" clocks

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-23 14:23:40 -08:00
Robin Murphy
e0b2180010 arm64: dts: add baud rate to Juno stdout-path
Without explicit command-line parameters, the Juno UART ends up running
at 57600 baud in the kernel, which is at odds with the 115200 baud used
by the rest of the firmware. Since commit 7914a7c565 now lets us
fix this by specifying default options in stdout-path, do so.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-23 14:17:56 -08:00
Linus Torvalds
2e3810da41 Three small fixes. Two for x86 and one avoids that sparse bails out.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJUwkVXAAoJEL/70l94x66DwPEH/RPBmxJ+lD0nRyXVECSWxjN6
 DYJvp4HsLV8BhBx/ATjAkjiVPKTUk9vQBjfgl72YatjASP9aNIkBqnN0AOVdVQ2i
 04ZvYaSw3jY0A5PSecdFQZ4u8MAvaRS4AYNOYM3Kpf0EOrIwanXFpEfVRGT8ichT
 uBK/mbN7vDO1SsgAnB00fCew4wFrHIa7fJ8eLNnebDOuC72oUZA+2nKx8ApWq4ca
 ZaziqkI2CFaV2rqJokKDun2arxI2Q6/L87g7qyo+HMd1b+aepLTWYNOs1vH0YoSc
 73aHg+3crIqx75XmnaxKP5SPOr6vpmnloux9yre8u1tvejBIbCMz1g9Mdl0YOmA=
 =YRTn
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Three small fixes.

  Two for x86 and one avoids that sparse bails out"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: SYSENTER emulation is broken
  KVM: x86: Fix of previously incomplete fix for CVE-2014-8480
  KVM: fix sparse warning in include/trace/events/kvm.h
2015-01-24 09:58:17 +12:00
Linus Torvalds
0ad4989d62 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Another round of small ARM fixes.

  restore_user_regs early stack deallocation is buggy in the presence of
  FIQs which switch to SVC mode, and could lead to corrupted registers
  being returned to a user process given an inopportune FIQ event.

  Another bug was spotted in the ARM perf code where it could lose track
  of perf counter overflows, leading to incorrect perf results.

  Lastly, a bug in arm_add_memory() was spotted where the memory sizes
  aren't properly rounded.  As most people pass properly rounded sizes,
  this hasn't been noticed"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8292/1: mm: fix size rounding-down of arm_add_memory() function
  ARM: 8255/1: perf: Prevent wraparound during overflow
  ARM: 8266/1: Remove early stack deallocation from restore_user_regs
2015-01-24 09:57:01 +12:00
Linus Torvalds
222713bb1e arm64 fixes:
- Fix cleaning of .dtbs following directory restructuring
 - Fix allmodconfig build breakage in -next due to missing include
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABCgAGBQJUwjspAAoJELescNyEwWM0KO4IAI6uyVYrsGZa+j7HUnvr6xQp
 jqqlVyTfl3mxS8o0BfquGHn55CT2S3Vn0pPs8RSy5gvzqqoB2c2N1ULEpRGHFErE
 OpxCpNrCnWnCRKRaV4T0sjU4nPIYQg78G82tJmn2WS52dt1/jl3KRlhcykf9G+o6
 m2fMAe+/V5Q6Zi4GV3ULYGjE7O7Cb/HQskFRe7uhltDbmQFXW1KCcDwwTm4w8uTW
 2uzqz4qn1GtrsP+nS8IW7CCIUZpMRDRWoo28xbRtPgiQwRp4vdzNN5JDno+YG6w+
 WddR8XvJRDCsvrJq6jJoIGmOA+b6WYAaMQ+bubulb7wmCnQzGr2ackvuT9WyB2o=
 =P6S+
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull two arm64 fixes from Will Deacon:
 "Arm64 fixes seem to come in pairs recently.  We've got a fix for
  removing device-tree blobs when doing a make clean and another one
  addressing a missing include, which fixes build failures in -next for
  allmodconfig (spotted by Mark's buildbot).

  Summary from signed tag:

   - fix cleaning of .dtbs following directory restructuring
   - fix allmodconfig build breakage in -next due to missing include"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: dump: Fix implicit inclusion of definition for PCI_IOBASE
  arm64: Add dtb files to archclean rule
2015-01-24 09:55:13 +12:00
Nadav Amit
f3747379ac KVM: x86: SYSENTER emulation is broken
SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
   still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
   legacy-mode.
4. There is some unneeded code.

Fix it.

Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-23 13:57:15 +01:00
Nadav Amit
63ea0a49ae KVM: x86: Fix of previously incomplete fix for CVE-2014-8480
STR and SLDT with rip-relative operand can cause a host kernel oops.
Mark them as DstMem as well.

Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-23 13:56:56 +01:00