Commit graph

536540 commits

Author SHA1 Message Date
Linus Torvalds
b7dec838b5 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Another couple of small ARM fixes.

  A patch from Masahiro Yamada who noticed that "make -jN all zImage"
  would end up generating bad images where N > 1, and a patch from
  Nicolas to fix the Marvell CPU user access optimisation code when page
  faults are disabled"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8418/1: add boot image dependencies to not generate invalid images
  ARM: 8414/1: __copy_to_user_memcpy: fix mmap semaphore usage
2015-08-22 15:48:04 -07:00
Linus Torvalds
d0b89bd548 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Various low level fixes: fix more fallout from the FPU rework and the
  asm entry code rework, plus an MSI rework fix, and an idle-tracing fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu/math-emu: Fix crash in fork()
  x86/fpu/math-emu: Fix math-emu boot crash
  x86/idle: Restore trace_cpu_idle to mwait_idle() calls
  x86/irq: Build correct vector mapping for multiple MSI interrupts
  Revert "sched/x86_64: Don't save flags on context switch"
2015-08-22 08:15:36 -07:00
Linus Torvalds
c3a0651422 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Tooling fixes: a 'perf record' deadlock fix plus debuggability fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf top: Show backtrace when handling a SIGSEGV on --stdio mode
  perf tools: Fix buildid processing
  perf tools: Make fork event processing more resilient
  perf tools: Avoid deadlock when map_groups are broken
2015-08-22 08:06:28 -07:00
Thomas Gleixner
a57e456a7b x86/apic: Fix fallout from x2apic cleanup
In the recent x2apic cleanup I got two things really wrong:
1) The safety check in __disable_x2apic which allows the function to
   be called unconditionally is backwards. The check is there to
   prevent access to the apic MSR in case that the machine has no
   apic. Though right now it returns if the machine has an apic and
   therefor the disabling of x2apic is never invoked.

2) x2apic_disable() sets x2apic_mode to 0 after registering the local
   apic. That's wrong, because register_lapic_address() checks x2apic
   mode and therefor takes the wrong code path.

This results in boot failures on machines with x2apic preenabled by
BIOS and can also lead to an fatal MSR access on machines without
apic.

The solutions are simple:
1) Correct the sanity check for apic availability
2) Clear x2apic_mode _before_ calling register_lapic_address()

Fixes: 659006bf3a 'x86/x2apic: Split enable and setup function'
Reported-and-tested-by: Javier Monteagudo <javiermon@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1224764
Cc: stable@vger.kernel.org # 4.0+
Cc: Laura Abbott <labbott@redhat.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
2015-08-22 17:01:48 +02:00
Linus Torvalds
84f3fe4608 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A series of small fixlets for a regression visible on OMAP devices
  caused by the conversion of the OMAP interrupt chips to hierarchical
  interrupt domains.  Mostly one liners on the driver side plus a small
  helper function in the core to avoid open coded mess in the drivers"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/crossbar: Restore set_wake functionality
  irqchip/crossbar: Restore the mask on suspend behaviour
  ARM: OMAP: wakeupgen: Restore the irq_set_type() mechanism
  irqchip/crossbar: Restore the irq_set_type() mechanism
  genirq: Introduce irq_chip_set_type_parent() helper
  genirq: Don't return ENOSYS in irq_chip_retrigger_hierarchy
2015-08-22 07:45:36 -07:00
Linus Torvalds
f8a89fc05a Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 "Two minimalistic fixes for 4.2 regressions:

   - Eric fixed a thinko in the timer_list base switching code caused by
     the overhaul of the timer wheel.  It can cause a cpu to see the
     wrong base for a timer while we move the timer around.

   - Guenter fixed a regression for IMX if booted w/o device tree, where
     the timer interrupt is not initialized and therefor the machine
     fails to boot"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/imx: Fix boot with non-DT systems
  timer: Write timer->flags atomically
2015-08-22 07:37:41 -07:00
Ingo Molnar
827409b2f5 x86/fpu/math-emu: Fix crash in fork()
During later stages of math-emu bootup the following crash triggers:

	 math_emulate: 0060:c100d0a8
	 Kernel panic - not syncing: Math emulation needed in kernel
	 CPU: 0 PID: 1511 Comm: login Not tainted 4.2.0-rc7+ #1012
	 [...]
	 Call Trace:
	  [<c181d50d>] dump_stack+0x41/0x52
	  [<c181c918>] panic+0x77/0x189
	  [<c1003530>] ? math_error+0x140/0x140
	  [<c164c2d7>] math_emulate+0xba7/0xbd0
	  [<c100d0a8>] ? fpu__copy+0x138/0x1c0
	  [<c1109c3c>] ? __alloc_pages_nodemask+0x12c/0x870
	  [<c136ac20>] ? proc_clear_tty+0x40/0x70
	  [<c136ac6e>] ? session_clear_tty+0x1e/0x30
	  [<c1003530>] ? math_error+0x140/0x140
	  [<c1003575>] do_device_not_available+0x45/0x70
	  [<c100d0a8>] ? fpu__copy+0x138/0x1c0
	  [<c18258e6>] error_code+0x5a/0x60
	  [<c1003530>] ? math_error+0x140/0x140
	  [<c100d0a8>] ? fpu__copy+0x138/0x1c0
	  [<c100c205>] arch_dup_task_struct+0x25/0x30
	  [<c1048cea>] copy_process.part.51+0xea/0x1480
	  [<c115a8e5>] ? dput+0x175/0x200
	  [<c136af70>] ? no_tty+0x30/0x30
	  [<c1157242>] ? do_vfs_ioctl+0x322/0x540
	  [<c104a21a>] _do_fork+0xca/0x340
	  [<c1057b06>] ? SyS_rt_sigaction+0x66/0x90
	  [<c104a557>] SyS_clone+0x27/0x30
	  [<c1824a80>] sysenter_do_call+0x12/0x12

The reason is the incorrect assumption in fpu_copy(), that FNSAVE
can be executed from math-emu kernels as well.

Don't try to copy the registers, the soft state will be copied
by fork anyway, so the child task inherits the parent task's
soft math state.

With this fix applied math-emu kernels boot up fine on modern
hardware and the 'no387 nofxsr' boot options.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-22 10:23:03 +02:00
Ingo Molnar
5fc960380e x86/fpu/math-emu: Fix math-emu boot crash
On a math-emu bootup the following crash occurs:

	Initializing CPU#0
	------------[ cut here ]------------
	kernel BUG at arch/x86/kernel/traps.c:779!
	invalid opcode: 0000 [#1] SMP
	[...]
	EIP is at do_device_not_available+0xe/0x70
	[...]
	Call Trace:
	 [<c18238e6>] error_code+0x5a/0x60
	 [<c1002bd0>] ? math_error+0x140/0x140
	 [<c100bbd9>] ? fpu__init_cpu+0x59/0xa0
	 [<c1012322>] cpu_init+0x202/0x330
	 [<c104509f>] ? __native_set_fixmap+0x1f/0x30
	 [<c1b56ab0>] trap_init+0x305/0x346
	 [<c1b548af>] start_kernel+0x1a5/0x35d
	 [<c1b542b4>] i386_start_kernel+0x82/0x86

The reason is that in the following commit:

  b1276c48e9 ("x86/fpu: Initialize fpregs in fpu__init_cpu_generic()")

I failed to consider math-emu's limitation that it cannot execute the
FNINIT instruction in kernel mode.

The long term fix might be to allow math-emu to execute (certain) kernel
mode FPU instructions, but for now apply the safe (albeit somewhat ugly)
fix: initialize the emulation state explicitly without trapping out to
the FPU emulator.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-22 10:02:04 +02:00
Christoph Hellwig
e525293d97 Add hch to .get_maintainer.ignore
While the idea behind get_maintainer seems highly useful it's
unfortunately way to trigger happy to grab people that once had a few
commits to files.  For someone like me who does a lot of tree-wide API
work that leads to an incredible amount of Cc spam.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-21 14:30:10 -07:00
Michal Hocko
2f064f3485 mm: make page pfmemalloc check more robust
Commit c48a11c7ad ("netvm: propagate page->pfmemalloc to skb") added
checks for page->pfmemalloc to __skb_fill_page_desc():

        if (page->pfmemalloc && !page->mapping)
                skb->pfmemalloc = true;

It assumes page->mapping == NULL implies that page->pfmemalloc can be
trusted.  However, __delete_from_page_cache() can set set page->mapping
to NULL and leave page->index value alone.  Due to being in union, a
non-zero page->index will be interpreted as true page->pfmemalloc.

So the assumption is invalid if the networking code can see such a page.
And it seems it can.  We have encountered this with a NFS over loopback
setup when such a page is attached to a new skbuf.  There is no copying
going on in this case so the page confuses __skb_fill_page_desc which
interprets the index as pfmemalloc flag and the network stack drops
packets that have been allocated using the reserves unless they are to
be queued on sockets handling the swapping which is the case here and
that leads to hangs when the nfs client waits for a response from the
server which has been dropped and thus never arrive.

The struct page is already heavily packed so rather than finding another
hole to put it in, let's do a trick instead.  We can reuse the index
again but define it to an impossible value (-1UL).  This is the page
index so it should never see the value that large.  Replace all direct
users of page->pfmemalloc by page_is_pfmemalloc which will hide this
nastiness from unspoiled eyes.

The information will get lost if somebody wants to use page->index
obviously but that was the case before and the original code expected
that the information should be persisted somewhere else if that is
really needed (e.g.  what SLAB and SLUB do).

[akpm@linux-foundation.org: fix blooper in slub]
Fixes: c48a11c7ad ("netvm: propagate page->pfmemalloc to skb")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Debugged-by: Vlastimil Babka <vbabka@suse.com>
Debugged-by: Jiri Bohac <jbohac@suse.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org>	[3.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-08-21 14:30:10 -07:00
Pablo Neira Ayuso
116984a316 netfilter: xt_TEE: use IS_ENABLED(CONFIG_NF_DUP_IPV6)
Instead of IS_ENABLED(CONFIG_IPV6), otherwise we hit:

et/built-in.o: In function `tee_tg6':
>> xt_TEE.c:(.text+0x6cd8c): undefined reference to `nf_dup_ipv6'

when:

 CONFIG_IPV6=y
 CONFIG_NF_DUP_IPV4=y
 # CONFIG_NF_DUP_IPV6 is not set
 CONFIG_NETFILTER_XT_TARGET_TEE=y

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-08-21 22:08:41 +02:00
Pablo Neira Ayuso
59e26423e0 netfilter: nf_dup: fix sparse warnings
>> net/ipv4/netfilter/nft_dup_ipv4.c:29:37: sparse: incorrect type in initializer (different base types)
   net/ipv4/netfilter/nft_dup_ipv4.c:29:37:    expected restricted __be32 [user type] s_addr
   net/ipv4/netfilter/nft_dup_ipv4.c:29:37:    got unsigned int [unsigned] <noident>

>> net/ipv6/netfilter/nf_dup_ipv6.c:48:23: sparse: incorrect type in assignment (different base types)
   net/ipv6/netfilter/nf_dup_ipv6.c:48:23:    expected restricted __be32 [addressable] [assigned] [usertype] flowlabel
   net/ipv6/netfilter/nf_dup_ipv6.c:48:23:    got int

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-08-21 21:29:19 +02:00
David S. Miller
dc25b25897 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/usb/qmi_wwan.c

Overlapping additions of new device IDs to qmi_wwan.c

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-21 11:44:04 -07:00
David S. Miller
1a69205c47 enic: Fix build failure with SRIOV disabled.
err_out_vnic_unregister is used regardless of whether
SRIOV is enabled or not.

Reported-by: Jesse Brandeburg <jesse.brangeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-21 11:43:22 -07:00
Linus Torvalds
e45fc85a2f PCI updates for v4.2:
Resource management
     - Don't use 64-bit bus addresses on PA-RISC
 
   Miscellaneous
     - Tolerate hierarchies with no Root Port
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Merge tag 'pci-v4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are fixes for ASPM-related NULL pointer dereference crashes on
  Sparc and PowerPC and 64-bit PCI address-related HPMC crashes on
  PA-RISC.  These are both caused by things we merged in the v4.2 merge
  window.  Details:

  Resource management
    - Don't use 64-bit bus addresses on PA-RISC

  Miscellaneous
    - Tolerate hierarchies with no Root Port"

* tag 'pci-v4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Don't use 64-bit bus addresses on PA-RISC
  PCI: Tolerate hierarchies with no Root Port
2015-08-21 11:18:10 -07:00
Linus Torvalds
00f7641046 media fixes for v4.2-rc8
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Merge tag 'media/v4.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - a regression fix at the videobuf2 core driver

 - fix error handling at mantis probing code

 - revert the IR encode patches, as the API is not mature enough.
   So, better to postpone the changes to a latter Kernel

 - fix Kconfig breakages on some randconfig scenarios.

* tag 'media/v4.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] mantis: Fix error handling in mantis_dma_init()
  Revert "[media] rc: rc-ir-raw: Add scancode encoder callback"
  Revert "[media] rc: rc-ir-raw: Add Manchester encoder (phase encoder) helper"
  Revert "[media] rc: ir-rc5-decoder: Add encode capability"
  Revert "[media] rc: ir-rc6-decoder: Add encode capability"
  Revert "[media] rc: rc-core: Add support for encode_wakeup drivers"
  Revert "[media] rc: rc-loopback: Add loopback of filter scancodes"
  Revert "[media] rc: nuvoton-cir: Add support for writing wakeup samples via sysfs filter callback"
  [media] vb2: Fix compilation breakage when !CONFIG_BUG
  [media] vb2: Only requeue buffers immediately once streaming is started
  [media] media/pci/cobalt: fix Kconfig and build when SND is not enabled
  [media] media/dvb: fix ts2020.c Kconfig and build
2015-08-21 11:03:06 -07:00
Linus Torvalds
7e08117de6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fix from Dmitry Torokhov:
 "A small fixup to gpio_keys_polled driver"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: gpio_keys_polled - request GPIO pin as input.
2015-08-21 10:54:53 -07:00
Linus Torvalds
dc9c12f46f Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "A bunch of i915 fixes, one revert a VBT fix that was a bit premature,
  and some braswell feature removal that the hw actually didn't support.

  One radeon race fix at boot, and one hlcdc build fix, one fix from
  Russell that fixes build as well with new audio features.

  This is hopefully all I have until -next"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: fix hotplug race at startup
  drm/edid: add function to help find SADs
  drm/i915: Avoid TP3 on CHV
  drm/i915: remove HBR2 from chv supported list
  Revert "drm/i915: Add eDP intermediate frequencies for CHV"
  Revert "drm/i915: Allow parsing of variable size child device entries from VBT"
  drm/atmel-hlcdc: Compile suspend/resume for PM_SLEEP only
  drm/i915: Flag the execlists context object as dirty after every use
2015-08-21 10:46:56 -07:00
Julian Anastasov
d33288172e ipvs: add more mcast parameters for the sync daemon
- mcast_group: configure the multicast address, now IPv6
is supported too

- mcast_port: configure the multicast port

- mcast_ttl: configure the multicast TTL/HOP_LIMIT

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
2015-08-21 09:10:11 -07:00
Julian Anastasov
e4ff675130 ipvs: add sync_maxlen parameter for the sync daemon
Allow setups with large MTU to send large sync packets by
adding sync_maxlen parameter. The default value is now based
on MTU but no more than 1500 for compatibility reasons.

To avoid problems if MTU changes allow fragmentation by
sending packets with DF=0. Problem reported by Dan Carpenter.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
2015-08-21 09:10:03 -07:00
Julian Anastasov
e0b26cc997 ipvs: call rtnl_lock early
When the sync damon is started we need to hold rtnl
lock while calling ip_mc_join_group. Currently, we have
a wrong locking order because the correct one is
rtnl_lock->__ip_vs_mutex. It is implied from the usage
of __ip_vs_mutex in ip_vs_dst_event() which is called
under rtnl lock during NETDEV_* notifications.

Fix the problem by calling rtnl_lock early only for the
start_sync_thread call. As a bonus this fixes the usage
__dev_get_by_name which was not called under rtnl lock.

This patch actually extends and depends on commit 54ff9ef36b
("ipv4, ipv6: kill ip_mc_{join, leave}_group and
ipv6_sock_mc_{join, drop}").

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
2015-08-21 09:09:09 -07:00
Raducu Deaconu
eefa32d3f3 ipvs: Add ovf scheduler
The weighted overflow scheduling algorithm directs network connections
to the server with the highest weight that is currently available
and overflows to the next when active connections exceed the node's weight.

Signed-off-by: Raducu Deaconu <rhadoo.io88@gmail.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
2015-08-21 09:08:39 -07:00
Dave Airlie
7f98ca454a drm/radeon: fix hotplug race at startup
We apparantly get a hotplug irq before we've initialised
modesetting,

[drm] Loading R100 Microcode
BUG: unable to handle kernel NULL pointer dereference at   (null)
IP: [<c125f56f>] __mutex_lock_slowpath+0x23/0x91
*pde = 00000000
Oops: 0002 [#1]
Modules linked in: radeon(+) drm_kms_helper ttm drm i2c_algo_bit backlight pcspkr psmouse evdev sr_mod input_leds led_class cdrom sg parport_pc parport floppy intel_agp intel_gtt lpc_ich acpi_cpufreq processor button mfd_core agpgart uhci_hcd ehci_hcd rng_core snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm usbcore usb_common i2c_i801 i2c_core snd_timer snd soundcore thermal_sys
CPU: 0 PID: 15 Comm: kworker/0:1 Not tainted 4.2.0-rc7-00015-gbf67402 #111
Hardware name: MicroLink                               /D850MV                         , BIOS MV85010A.86A.0067.P24.0304081124 04/08/2003
Workqueue: events radeon_hotplug_work_func [radeon]
task: f6ca5900 ti: f6d3e000 task.ti: f6d3e000
EIP: 0060:[<c125f56f>] EFLAGS: 00010282 CPU: 0
EIP is at __mutex_lock_slowpath+0x23/0x91
EAX: 00000000 EBX: f5e900fc ECX: 00000000 EDX: fffffffe
ESI: f6ca5900 EDI: f5e90100 EBP: f5e90000 ESP: f6d3ff0c
 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
CR0: 8005003b CR2: 00000000 CR3: 36f61000 CR4: 000006d0
Stack:
 f5e90100 00000000 c103c4c1 f6d2a5a0 f5e900fc f6df394c c125f162 f8b0faca
 f6d2a5a0 c138ca00 f6df394c f7395600 c1034741 00d40000 00000000 f6d2a5a0
 c138ca00 f6d2a5b8 c138ca10 c1034b58 00000001 f6d40000 f6ca5900 f6d0c940
Call Trace:
 [<c103c4c1>] ? dequeue_task_fair+0xa4/0xb7
 [<c125f162>] ? mutex_lock+0x9/0xa
 [<f8b0faca>] ? radeon_hotplug_work_func+0x17/0x57 [radeon]
 [<c1034741>] ? process_one_work+0xfc/0x194
 [<c1034b58>] ? worker_thread+0x18d/0x218
 [<c10349cb>] ? rescuer_thread+0x1d5/0x1d5
 [<c103742a>] ? kthread+0x7b/0x80
 [<c12601c0>] ? ret_from_kernel_thread+0x20/0x30
 [<c10373af>] ? init_completion+0x18/0x18
Code: 42 08 e8 8e a6 dd ff c3 57 56 53 83 ec 0c 8b 35 48 f7 37 c1 8b 10 4a 74 1a 89 c3 8d 78 04 8b 40 08 89 63

Reported-and-Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-08-21 19:43:18 +10:00
David S. Miller
a9e01ed986 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

This is second pull request includes the conflict resolution patch that
resulted from the updates that we got for the conntrack template through
kmalloc. No changes with regards to the previously sent 15 patches.

The following patchset contains Netfilter updates for your net-next tree, they
are:

1) Rework the existing nf_tables counter expression to make it per-cpu.

2) Prepare and factor out common packet duplication code from the TEE target so
   it can be reused from the new dup expression.

3) Add the new dup expression for the nf_tables IPv4 and IPv6 families.

4) Convert the nf_tables limit expression to use a token-based approach with
   64-bits precision.

5) Enhance the nf_tables limit expression to support limiting at packet byte.
   This comes after several preparation patches.

6) Add a burst parameter to indicate the amount of packets or bytes that can
   exceed the limiting.

7) Add netns support to nfacct, from Andreas Schultz.

8) Pass the nf_conn_zone structure instead of the zone ID in nf_tables to allow
   accessing more zone specific information, from Daniel Borkmann.

9) Allow to define zone per-direction to support netns containers with
   overlapping network addressing, also from Daniel.

10) Extend the CT target to allow setting the zone based on the skb->mark as a
   way to support simple mappings from iptables, also from Daniel.

11) Make the nf_tables payload expression aware of the fact that VLAN offload
    may have removed a vlan header, from Florian Westphal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 22:18:45 -07:00
Pablo Neira Ayuso
81bf1c64e7 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Resolve conflicts with conntrack template fixes.

Conflicts:
	net/netfilter/nf_conntrack_core.c
	net/netfilter/nf_synproxy_core.c
	net/netfilter/xt_CT.c

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-08-21 06:09:05 +02:00
Dave Airlie
bef7d1961c Merge tag 'drm-intel-fixes-2015-08-20' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Revert of a VBT parsing commit that should've been queued for drm-next,
not v4.2. The revert unbreaks Braswell among other things.

Also on Braswell removal of DP HBR2/TP3 and intermediate eDP frequency
support. The code was optimistically added based on incorrect
documentation; the platform does not support them. These are cc: stable.

Finally a gpu state fix from Chris, also cc: stable.

* tag 'drm-intel-fixes-2015-08-20' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Avoid TP3 on CHV
  drm/i915: remove HBR2 from chv supported list
  Revert "drm/i915: Add eDP intermediate frequencies for CHV"
  Revert "drm/i915: Allow parsing of variable size child device entries from VBT"
  drm/i915: Flag the execlists context object as dirty after every use
2015-08-21 10:44:03 +10:00
Linus Torvalds
0bad90985d Power management and ACPI fixes for v4.2-rc8
- Fix a recently introduced issue in the ACPI backlight code which
    causes lockdep to complain about a circular lock dependency during
    initialization (Hans de Goede).
 
  - Fix a possible memory during initialization in the Exynos cpufreq
    driver (Shailendra Verma).
 
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Merge tag 'pm+acpi-4.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:
 "These fix a recent regression in the ACPI backlight code and a memory
  leak in the Exynos cpufreq driver.

  Specifics:

   - Fix a recently introduced issue in the ACPI backlight code which
     causes lockdep to complain about a circular lock dependency during
     initialization (Hans de Goede).

   - Fix a possible memory during initialization in the Exynos cpufreq
     driver (Shailendra Verma)"

* tag 'pm+acpi-4.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: exynos: Fix for memory leak in case SoC name does not match
  ACPI / video: Fix circular lock dependency issue in the video-detect code
2015-08-20 17:06:11 -07:00
David S. Miller
08617f47ea Merge branch 'lwt-ipv6'
Jiri Benc says:

====================
lwtunnel: per route ipv6 support for vxlan

v3: Moved LWTUNNEL_ENCAP_IP6 definition in patch 13.
v2: Fixed issues in patch 4 pointed out by Alexei.

This series enables IPv6 tunnels based on lwtunnel infrastructure. Only
vxlan is supported for now.

Tested in all combinations of IPv4 over IPv6, IPv6 over IPv4 and IPv6 over
IPv6.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:38 -07:00
Jiri Benc
32a2b002ce ipv6: route: per route IP tunnel metadata via lightweight tunnel
Allow specification of per route IP tunnel instructions also for IPv6.
This complements commit 3093fbe7ff ("route: Per route IP tunnel metadata
via lightweight tunnel").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
CC: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:38 -07:00
Jiri Benc
904af04d30 ipv6: route: extend flow representation with tunnel key
Use flowi_tunnel in flowi6 similarly to what is done with IPv4.
This complements commit 1b7179d3ad ("route: Extend flow representation
with tunnel key").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:37 -07:00
Jiri Benc
a725e514db vxlan: metadata based tunneling for IPv6
Support metadata based (formerly flow based) tunneling also for IPv6.
This complements commit ee122c79d4 ("vxlan: Flow based tunneling").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:37 -07:00
Jiri Benc
6f264e47d4 vxlan: do not shadow flags variable
The 'flags' variable is already defined in the outer scope.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:37 -07:00
Jiri Benc
705cc62f67 vxlan: provide access function for vxlan socket address family
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:37 -07:00
Jiri Benc
ab450605b3 ipv6: ndisc: inherit metadata dst when creating ndisc requests
If output device wants to see the dst, inherit the dst of the original skb
in the ndisc request.

This is an IPv6 counterpart of commit 0accfc268f ("arp: Inherit metadata
dst when creating ARP requests").

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:37 -07:00
Jiri Benc
06e9d040ba ipv6: drop metadata dst in ip6_route_input
The fix in commit 48fb6b5545 is incomplete, as now ip6_route_input can be
called with non-NULL dst if it's a metadata dst and the reference is leaked.
Drop the reference.

Fixes: 48fb6b5545 ("ipv6: fix crash over flow-based vxlan device")
Fixes: ee122c79d4 ("vxlan: Flow based tunneling")
CC: Wei-Chun Chao <weichunc@plumgrid.com>
CC: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
61adedf3e3 route: move lwtunnel state to dst_entry
Currently, the lwtunnel state resides in per-protocol data. This is
a problem if we encapsulate ipv6 traffic in an ipv4 tunnel (or vice versa).
The xmit function of the tunnel does not know whether the packet has been
routed to it by ipv4 or ipv6, yet it needs the lwtstate data. Moving the
lwtstate data to dst_entry makes such inter-protocol tunneling possible.

As a bonus, this brings a nice diffstat.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
7c383fb225 ip_tunnels: use tos and ttl fields also for IPv6
Rename the ipv4_tos and ipv4_ttl fields to just 'tos' and 'ttl', as they'll
be used with IPv6 tunnels, too.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
c1ea5d672a ip_tunnels: add IPv6 addresses to ip_tunnel_key
Add the IPv6 addresses as an union with IPv4 ones. When using IPv4, the
newly introduced padding after the IPv4 addresses needs to be zeroed out.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
376534a3d1 ip_tunnels: use offsetofend
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
6b8847c5a2 ip_tunnels: use u8/u16/u32
The ip_tunnels.h include file uses mixture of __u16 and u16 (etc.) types.
Unify it to the non-underscore variants.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:36 -07:00
Jiri Benc
ac1cf3990c ip_tunnels: remove custom alignment and packing
The custom alignment of struct ip_tunnel_key is unnecessary. In struct
sw_flow_key, it starts at offset 256, in struct ip_tunnel_info it's the
first field.

The structure is also packed even without the __packed keyword.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 15:42:35 -07:00
Rafael J. Wysocki
b8a1171f71 Merge branches 'acpi-video' and 'cpufreq-fixes'
* acpi-video:
  ACPI / video: Fix circular lock dependency issue in the video-detect code

* cpufreq-fixes:
  cpufreq: exynos: Fix for memory leak in case SoC name does not match
2015-08-21 00:19:29 +02:00
Bjorn Helgaas
45ea2a5fed PCI: Don't use 64-bit bus addresses on PA-RISC
Meelis and Helge reported that 3a9ad0b4fd ("PCI: Add pci_bus_addr_t")
caused HPMCs on A500 and hangs on rp5470.

PA-RISC does not set ARCH_DMA_ADDR_T_64BIT, even for 64-bit kernels, so
prior to 3a9ad0b4fd, we always used 32-bit PCI addresses.  After
3a9ad0b4fd, we do use 64-bit PCI addresses in 64-bit kernels, and
apparently there's some PA-RISC problem related to them.

Fixes: 3a9ad0b4fd ("PCI: Add pci_bus_addr_t")
Link: http://lkml.kernel.org/r/alpine.LRH.2.11.1507260929000.30065@math.ut.ee
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Based-on-idea-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: stable@vger.kernel.org	# v3.19+
2015-08-20 17:16:37 -05:00
Jeremy Linton
938049e18d net: xgene Remove xgene specific phy and MAC lookup functions
Convert the xgene_get_mac_address to device_get_mac_address(), and
xgene_get_phy_mode() to device_get_phy_mode().

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:43:49 -07:00
David Ahern
4c9bcd1179 net: Fix nexthop lookups
Andreas reported breakage adding routes with local nexthops:
$ ip route show table main
...
172.28.0.0/24 dev vnf-xe1p0  proto kernel  scope link  src 172.28.0.16

$ ip route add 10.0.0.0/8 via 172.28.0.32 table 100 dev vnf-xe1p0
RTNETLINK answers: Resource temporarily unavailable

3bfd847203 changed the lookup to use the passed in table but for cases like
this the nexthop is in the local table rather than the passed in table.

Fixes: 3bfd847203 ("net: Use passed in table for nexthop lookups")
Reported-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:42:39 -07:00
Scott Feldman
eb4cb85180 bridge: fix netlink max attr size
.maxtype should match .policy.  Probably just been getting lucky here
because IFLA_BRPORT_MAX > IFLA_BR_MAX.

Fixes: 13323516 ("bridge: implement rtnl_link_ops->changelink")
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
Jeremy Linton
4d14a63400 smsc911x: Remove dev==NULL check.
The dev==NULL check in smsc911x_probe_config is useless
and isn't providing any additional protection. If a fwnode
doesn't exist then an appropriate error should be returned
by device_get_phy_mode() covering the original case
of a missing of/fwnode.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
Jeremy Linton
2f710a3a80 device property: Add ETH_ALEN check, update comments.
This patch adds MAC address length check back into
the device_get_mac_addr() function before calling
is_valid_ether_addr() similar to the way the OF
routine does it.

Update the comments for the two new functions.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:36:25 -07:00
David S. Miller
ef09242f39 Major changes:
ath10k:
 
 * add support for qca99x0 family of devices
 * improve performance of tx_lock
 * add support for raw mode (802.11 frame format) and software crypto
   engine enabled via a module parameter
 
 ath9k:
 
 * add fast-xmit support
 
 wil6210:
 
 * implement TSO support
 * support bootloader v1 and onwards
 
 iwlwifi:
 
 * Deprecate -10.ucode
 * Clean ups towards multiple Rx queues
 * Add support for longer CMD IDs. This will be required by new
   firmwares since we are getting close to the u8 limit.
 * bugfixes for the D0i3 power state
 * Add basic support for FTM
 * polish the Miracast operation
 * fix a few power consumption issues
 * scan cleanup
 * fixes for D0i3 system state
 * add paging for devices that support it
 * add again the new RBD allocation model
 * add more options to the firmware debug system
 * add support for frag SKBs in Tx
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Merge tag 'wireless-drivers-next-for-davem-2015-08-19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
Major changes:

ath10k:

* add support for qca99x0 family of devices
* improve performance of tx_lock
* add support for raw mode (802.11 frame format) and software crypto
  engine enabled via a module parameter

ath9k:

* add fast-xmit support

wil6210:

* implement TSO support
* support bootloader v1 and onwards

iwlwifi:

* Deprecate -10.ucode
* Clean ups towards multiple Rx queues
* Add support for longer CMD IDs. This will be required by new
  firmwares since we are getting close to the u8 limit.
* bugfixes for the D0i3 power state
* Add basic support for FTM
* polish the Miracast operation
* fix a few power consumption issues
* scan cleanup
* fixes for D0i3 system state
* add paging for devices that support it
* add again the new RBD allocation model
* add more options to the firmware debug system
* add support for frag SKBs in Tx
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:13:25 -07:00
Ying Xue
e01286ef03 ipv4: Make fib_encap_match static
Make fib_encap_match() static as it isn't used outside the file.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-20 14:12:23 -07:00