Commit Graph

441200 Commits

Author SHA1 Message Date
Lucas Stach
f5d3352b27 PCI: tegra: Use new OF interrupt mapping when possible
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping.  For old
devicetrees we fall back to the previous practice.

This allows interrupts to be remapped across bridges.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-04-16 10:24:32 -06:00
Lucas Stach
f8f2fe7355 PCI: rcar: Use new OF interrupt mapping when possible
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping.  For old
devicetrees we fall back to the previous practice.

This allows interrupts to be remapped across bridges.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-16 10:24:09 -06:00
Lucas Stach
f86b3e3927 PCI: designware: Use new OF interrupt mapping when possible
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping.  For old
devicetrees we fall back to the previous practice.

This makes INTB, INTC, and INTD work on i.MX.

Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2014-04-16 10:23:46 -06:00
Mohit Kumar
017fcdc30c PCI: designware: Fix iATU programming for cfg1, io and mem viewport
This patch corrects iATU programming for cfg1, io and mem viewport.  Enable
ATU only after configuring it.

Signed-off-by: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Ajay Khandelwal <ajay.khandelwal@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: stable@vger.kernel.org
2014-04-16 10:23:34 -06:00
Mohit Kumar
c23fdc7da4 PCI: designware: Fix comment for setting number of lanes
Corrects comment for setting number of lanes.

Signed-off-by: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2014-04-16 10:23:28 -06:00
Thierry Reding
cbfbbabb89 drm/tegra: Remove gratuitous pad field
The version of the drm_tegra_submit structure that was merged all the
way back in 3.10 contains a pad field that was originally intended to
properly pad the following __u64 field. Unfortunately it seems like a
different field was dropped during review that caused this padding to
become unnecessary, but the pad field wasn't removed at that time.

One possible side-effect of this is that since the __u64 following the
pad is now no longer properly aligned, the compiler may (or may not)
introduce padding itself, which results in no predictable ABI.

Rectify this by removing the pad field so that all fields are again
naturally aligned. Technically this is breaking existing userspace ABI,
but given that there aren't any (released) userspace drivers that make
use of this yet, the fallout should be minimal.

Fixes: d43f81cbaf ("drm/tegra: Add gr2d device")
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-04-16 17:11:04 +02:00
Stephen Warren
22bbd5d949 gpu: host1x: handle the correct # of syncpt regs
BIT_WORD() truncates rather than rounds, so the loops in
syncpt_thresh_isr() and _host1x_intr_disable_all_syncpt_intrs() use <=
rather than < in an attempt to process the correct number of registers
when rounding of the conversion of count of bits to count of words is
necessary. However, when rounding isn't necessary because the value is
already a multiple of the divisor (as is the case for all values of
nb_pts the code actually sees), this causes one too many registers to
be processed.

Solve this by using and explicit DIV_ROUND_UP() call, rather than
BIT_WORD(), and comparing with < rather than <=.

Fixes: 7ede0b0bf3 ("gpu: host1x: Add syncpoint wait and interrupts")
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-04-16 17:11:04 +02:00
Kailang Yang
8dc9abb93d ALSA: hda/realtek - Add headset Mic support for Dell machine
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-16 10:30:46 +02:00
Ingo Molnar
5be44a6fb1 x86: Remove the PCI reboot method from the default chain
Steve reported a reboot hang and bisected it back to this commit:

  a4f1987e4c x86, reboot: Add EFI and CF9 reboot methods into the default list

He heroically tested all reboot methods and found the following:

  reboot=t       # triple fault                  ok
  reboot=k       # keyboard ctrl                 FAIL
  reboot=b       # BIOS                          ok
  reboot=a       # ACPI                          FAIL
  reboot=e       # EFI                           FAIL   [system has no EFI]
  reboot=p       # PCI 0xcf9                     FAIL

And I think it's pretty obvious that we should only try PCI 0xcf9 as a
last resort - if at all.

The other observation is that (on this box) we should never try
the PCI reboot method, but close with either the 'triple fault'
or the 'BIOS' (terminal!) reboot methods.

Thirdly, CF9_COND is a total misnomer - it should be something like
CF9_SAFE or CF9_CAREFUL, and 'CF9' should be 'CF9_FORCE' ...

So this patch fixes the worst problems:

 - it orders the actual reboot logic to follow the reboot ordering
   pattern - it was in a pretty random order before for no good
   reason.

 - it fixes the CF9 misnomers and uses BOOT_CF9_FORCE and
   BOOT_CF9_SAFE flags to make the code more obvious.

 - it tries the BIOS reboot method before the PCI reboot method.
   (Since 'BIOS' is a terminal reboot method resulting in a hang
    if it does not work, this is essentially equivalent to removing
    the PCI reboot method from the default reboot chain.)

 - just for the miraculous possibility of terminal (resulting
   in hang) reboot methods of triple fault or BIOS returning
   without having done their job, there's an ordering between
   them as well.

Reported-and-bisected-and-tested-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Aubrey <aubrey.li@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Link: http://lkml.kernel.org/r/20140404064120.GB11877@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-16 08:56:09 +02:00
Hui Wang
67807ce55f ALSA: hda - add headset mic detect quirk for a Dell laptop
When we plug a 3-ring headset on the Dell machine (VID: 0x10ec0255,
SID: 0x1028067f), the headset mic can't be detected, after apply this
patch, the headset mic can work well.

BugLink: https://bugs.launchpad.net/bugs/1297581
Cc: David Henningsson <david.henningsson@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-16 07:47:50 +02:00
Linus Torvalds
10ec34fcb1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix BPF filter validation of netlink attribute accesses, from
    Mathias Kruase.

 2) Netfilter conntrack generation seqcount not initialized properly,
    from Andrey Vagin.

 3) Fix comparison mask computation on big-endian in nft_cmp_fast(),
    from Patrick McHardy.

 4) Properly limit MTU over ipv6, from Eric Dumazet.

 5) Fix seccomp system call argument population on 32-bit, from Daniel
    Borkmann.

 6) skb_network_protocol() should not use hard-coded ETH_HLEN, instead
    skb->mac_len needs to be used.  From Vlad Yasevich.

 7) We have several cases of using socket based communications to
    implement a tunnel.  For example, some tunnels are encapsulations
    over UDP so we use an internal kernel UDP socket to do the
    transmits.

    These tunnels should behave just like other software devices and
    pass the packets on down to the next layer.

    Most importantly we want the top-level socket (eg TCP) that created
    the traffic to be charged for the SKB memory.

    However, once you get into the IP output path, we have code that
    assumed that whatever was attached to skb->sk is an IP socket.

    To keep the top-level socket being charged for the SKB memory,
    whilst satisfying the needs of the IP output path, we now pass in an
    explicit 'sk' argument.

    From Eric Dumazet.

 8) ping_init_sock() leaks group info, from Xiaoming Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
  cxgb4: use the correct max size for firmware flash
  qlcnic: Fix MSI-X initialization code
  ip6_gre: don't allow to remove the fb_tunnel_dev
  ipv4: add a sock pointer to dst->output() path.
  ipv4: add a sock pointer to ip_queue_xmit()
  driver/net: cosa driver uses udelay incorrectly
  at86rf230: fix __at86rf230_read_subreg function
  at86rf230: remove check if AVDD settled
  net: cadence: Add architecture dependencies
  net: Start with correct mac_len in skb_network_protocol
  Revert "net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer"
  cxgb4: Save the correct mac addr for hw-loopback connections in the L2T
  net: filter: seccomp: fix wrong decoding of BPF_S_ANC_SECCOMP_LD_W
  seccomp: fix populating a0-a5 syscall args in 32-bit x86 BPF
  qlcnic: Do not disable SR-IOV when VFs are assigned to VMs
  qlcnic: Fix QLogic application/driver interface for virtual NIC configuration
  qlcnic: Fix PVID configuration on eSwitch port.
  qlcnic: Fix max ring count calculation
  qlcnic: Fix to send INIT_NIC_FUNC as first mailbox.
  qlcnic: Fix panic due to uninitialzed delayed_work struct in use.
  ...
2014-04-15 20:30:30 -07:00
Dave Airlie
5df5242d34 Merge tag 'drm-intel-fixes-2014-04-11' of git://anongit.freedesktop.org/drm-intel into drm-next
Some fixes from Intel.

* tag 'drm-intel-fixes-2014-04-11' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Always use kref tracking for all contexts.
  drm/i915: do not setup backlight if not available according to VBT
  drm/i915: check VBT for supported backlight type
  drm/i915: Disable self-refresh for untiled fbs on i915gm
  drm/mm: Don't WARN if drm_mm_reserve_node
2014-04-16 10:35:01 +10:00
Jes Sorensen
f5d197b614 staging: rtl8723au: Fix buffer overflow in rtw_get_wfd_ie()
Add bounds checking to not allow WFD Information Elements larger than
128, and make sure we use the correct buffer size MAX_WFD_IE_LEN
instea of hardcoding the size.

This also simplifies rtw_get_wfd_ie() by using the cfg80211
infrastructure.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 15:34:40 -07:00
Arnd Bergmann
14e6e35d04 staging: gs_fpgaboot: remove __TIMESTAMP__ macro
We specifically build the kernel with -Werror=date-time to detect
such macros, which gives us this error:

gs_fpgaboot/gs_fpgaboot.c:376:44: error: macro "__TIMESTAMP__" might prevent reproducible builds [-Werror=date-time]
  pr_info("built at %s UTC\n", __TIMESTAMP__);

The obvious fix is to remove the printk output line.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Insop Song <insop.song@gainspeed.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 14:46:43 -07:00
Daeseok Youn
1a52489318 staging: vme: fix memory leak in vme_user_probe()
If vme_master_request() returns NULL when it failed,
it need to free buffers for master.

And also removes unreachable code in vme_user_probe().

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 14:46:43 -07:00
Paul Bolle
d06fb58cb6 staging: fpgaboot: clean up Makefile
This Makefile tries to set the DEBUG macro but it uses an unknown
Kconfig macro to do so. Since no code appears to even care about the
DEBUG macro this line can safely be removed.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Insop Song <insop.song@gainspeed.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 14:46:42 -07:00
Shuah Khan
de4734bc65 staging/usbip: fix store_attach() sscanf return value check
sscanf() parses the input buffer for four input items. However,
the return value check is incorrect, as it checks for one input
item instead of four which is what it is expecting in the input
buffer. As a result, sscanf() will always fail even when the input
buffer is correct.

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 14:43:01 -07:00
Shuah Khan
21c5e8408d staging/usbip: userspace - fix usbipd SIGSEGV from refresh_exported_devices()
refresh_exported_devices() doesn't check udev_device_new_from_syspath()
return value and passed in null dev to udev_device_get_driver() resulting
in a segmentation fault. Change it to check for null return value from
both udev_device_new_from_syspath() and udev_device_get_driver().

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 14:43:01 -07:00
Wilfried Klaebe
ec03ab77cc staging: rtl8188eu: remove spaces, correct counts to unbreak P2P ioctls
staging: rtl8188eu: remove spaces, correct counts to unbreak P2P ioctls

It looks like someone did a search-and-replace on that driver, putting
spaces before "=" characters, without checking this is OK everywhere.
Also, in some places, there's memcpm()s/strncmp()s checking for some
different length than the fixed string argument.

These things result in code not working as intended. Fix that.

Signed-off-by: Wilfried Klaebe <w-lkml@lebenslange-mailadresse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 13:52:14 -07:00
Guenter Roeck
e7a62df8e8 of: Clean up of_update_property
After searching for the old property, bail out with -ENODEV
if it was not found.

It is unnecessary to check if oldprop is NULL before removing
its binary file; the check was already done before.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-15 15:21:22 -05:00
Steve Wise
6f1d721037 cxgb4: use the correct max size for firmware flash
The wrong max fw size was being used and causing false
"too big" errors running ethtool -f.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-15 15:50:02 -04:00
Alexander Gordeev
8564ae09e0 qlcnic: Fix MSI-X initialization code
Function qlcnic_setup_tss_rss_intr() might enter endless
loop in case pci_enable_msix() contiguously returns a
positive number of MSI-Xs that could have been allocated.
Besides, the function contains 'err = -EIO;' assignment
that never could be reached. This update fixes the
aforementioned issues.

Cc: Shahed Shaikh <shahed.shaikh@qlogic.com>
Cc: Dept-HSGLinuxNICDev@qlogic.com
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-15 15:14:19 -04:00
Nicolas Dichtel
54d63f787b ip6_gre: don't allow to remove the fb_tunnel_dev
It's possible to remove the FB tunnel with the command 'ip link del ip6gre0' but
this is unsafe, the module always supposes that this device exists. For example,
ip6gre_tunnel_lookup() may use it unconditionally.

Let's add a rtnl handler for dellink, which will never remove the FB tunnel (we
let ip6gre_destroy_tunnels() do the job).

Introduced by commit c12b395a46 ("gre: Support GRE over IPv6").

CC: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-15 14:56:19 -04:00
Richard Weinberger
29d1e7209e staging/rtl8821ae: Fix OOM handling in _rtl_init_deferred_work()
alloc_workqueue() can fail, handle this case.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-15 11:39:09 -07:00
Viresh Kumar
27630532ef tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz()
Since commit d689fe222 (NOHZ: Check for nohz active instead of nohz
enabled) the tick_nohz_switch_to_nohz() function returns because it
checks for the tick_nohz_active flag. This can't be set, because the
function itself sets it.

Undo the change in tick_nohz_switch_to_nohz().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linaro-kernel@lists.linaro.org
Cc: fweisbec@gmail.com
Cc: Arvind.Chauhan@arm.com
Cc: linaro-networking@linaro.org
Cc: <stable@vger.kernel.org> # 3.13+
Link: http://lkml.kernel.org/r/40939c05f2d65d781b92b20302b02243d0654224.1397537987.git.viresh.kumar@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-15 20:26:58 +02:00
Viresh Kumar
03e6bdc5c4 tick-sched: Don't call update_wall_time() when delta is lesser than tick_period
In tick_do_update_jiffies64() we are processing ticks only if delta is
greater than tick_period. This is what we are supposed to do here and
it broke a bit with this patch:

commit 47a1b796 (tick/timekeeping: Call update_wall_time outside the
jiffies lock)

With above patch, we might end up calling update_wall_time() even if
delta is found to be smaller that tick_period. Fix this by returning
when the delta is less than tick period.

[ tglx: Made it a 3 liner and massaged changelog ]

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linaro-kernel@lists.linaro.org
Cc: fweisbec@gmail.com
Cc: Arvind.Chauhan@arm.com
Cc: linaro-networking@linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Cc: <stable@vger.kernel.org> # v3.14+
Link: http://lkml.kernel.org/r/80afb18a494b0bd9710975bcc4de134ae323c74f.1397537987.git.viresh.kumar@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-15 20:26:45 +02:00
Viresh Kumar
521c42990e tick-common: Fix wrong check in tick_check_replacement()
tick_check_replacement() returns if a replacement of clock_event_device is
possible or not. It does this as the first check:

	if (tick_check_percpu(curdev, newdev, smp_processor_id()))
		return false;

Thats wrong. tick_check_percpu() returns true when the device is
useable. Check for false instead.

[ tglx: Massaged changelog ]

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: <stable@vger.kernel.org> # v3.11+
Cc: linaro-kernel@lists.linaro.org
Cc: fweisbec@gmail.com
Cc: Arvind.Chauhan@arm.com
Cc: linaro-networking@linaro.org
Link: http://lkml.kernel.org/r/486a02efe0246635aaba786e24b42d316438bf3b.1397537987.git.viresh.kumar@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-15 20:26:44 +02:00
Eric Dumazet
aad88724c9 ipv4: add a sock pointer to dst->output() path.
In the dst->output() path for ipv4, the code assumes the skb it has to
transmit is attached to an inet socket, specifically via
ip_mc_output() : The sk_mc_loop() test triggers a WARN_ON() when the
provider of the packet is an AF_PACKET socket.

The dst->output() method gets an additional 'struct sock *sk'
parameter. This needs a cascade of changes so that this parameter can
be propagated from vxlan to final consumer.

Fixes: 8f646c922d ("vxlan: keep original skb ownership")
Reported-by: lucien xin <lucien.xin@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-15 13:47:15 -04:00
Amitkumar Karwar
f8d2b9209a mwifiex: fix hung task on command timeout
Sometimes when command timeout occurs due to a firmware or
hardware bug, there may be some synchronous commands in command
queue. These commands are never downloaded to firmware causing
hung task warnings. This patch replaces wait_event_interruptible
call with wait_event_interruptible_timeout to fix the issue.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-15 13:27:05 -04:00
Amitkumar Karwar
20474129d8 mwifiex: process event before command response
During extended scan, SCAN report event is always followed by
command response. Sometimes It is observed that command response
is processed before SCAN report which leads to a crash, because
current command node is cleared while handling the response.
This patch makes sure that driver's main thread gives priority
to events over command responses.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Maithili Hinge <maithili@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-15 13:27:05 -04:00
Ingo Molnar
ad466db5b0 perf/urgent fixes:
Developer stuff:
 . Instead of redirecting flex output, use -o (Cody P Schafer)
 
 . Fix double free in perf test 21 (Adrian Hunter)
 
 Signed-off-by: Jiri Olsa <jolsa@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent

Pull perf/urgent fixes from Jiri Olsa:

  * Instead of redirecting flex output, use -o (Cody P Schafer)

  * Fix double free in perf test 21 (Adrian Hunter)

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-15 19:25:07 +02:00
Eric Dumazet
b0270e9101 ipv4: add a sock pointer to ip_queue_xmit()
ip_queue_xmit() assumes the skb it has to transmit is attached to an
inet socket. Commit 31c70d5956 ("l2tp: keep original skb ownership")
changed l2tp to not change skb ownership and thus broke this assumption.

One fix is to add a new 'struct sock *sk' parameter to ip_queue_xmit(),
so that we do not assume skb->sk points to the socket used by l2tp
tunnel.

Fixes: 31c70d5956 ("l2tp: keep original skb ownership")
Reported-by: Zhan Jianyu <nasa4836@gmail.com>
Tested-by: Zhan Jianyu <nasa4836@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-15 12:58:34 -04:00
Konrad Rzeszutek Wilk
eb47f71200 xen/manage: Poweroff forcefully if user-space is not yet up.
The user can launch the guest in this sequence:

xl create -p /vm.cfg	[launch, but pause it]
xl shutdown latest	[sets control/shutdown=poweroff]
xl unpause latest
xl console latest	[and see that the guest has completely
ignored the shutdown request]

In reality the guest hasn't ignored it. It registers a watch
and gets a notification that there is value. It then calls
the shutdown_handler which ends up calling orderly_shutdown.

Unfortunately that is so early in the bootup that there
are no user-space. Which means that the orderly_shutdown fails.
But since the force flag was set to false it continues on without
reporting.

What we really want to is to use the force when we are in the
SYSTEM_BOOTING state and not use the 'force' when SYSTEM_RUNNING.

However, if we are in the running state - and the shutdown command
has been given before the user-space has been setup, there is nothing
we can do. Worst yet, we stop ignoring the 'xl shutdown' requests!

As such, the other part of this patch is to only stop ignoring
the 'xl shutdown' when we are truly in the power off sequence.

That means the user can do multiple 'xl shutdown' and we will try
to act on them instead of ignoring them.

Fixes-Bug: http://bugs.xenproject.org/xen/bug/6
Reported-by:  Alex Bligh <alex@alex.org.uk>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 17:41:29 +01:00
Konrad Rzeszutek Wilk
027bd7e899 xen/xenbus: Avoid synchronous wait on XenBus stalling shutdown/restart.
The 'read_reply' works with 'process_msg' to read of a reply in XenBus.
'process_msg' is running from within the 'xenbus' thread. Whenever
a message shows up in XenBus it is put on a xs_state.reply_list list
and 'read_reply' picks it up.

The problem is if the backend domain or the xenstored process is killed.
In which case 'xenbus' is still awaiting - and 'read_reply' if called -
stuck forever waiting for the reply_list to have some contents.

This is normally not a problem - as the backend domain can come back
or the xenstored process can be restarted. However if the domain
is in process of being powered off/restarted/halted - there is no
point of waiting on it coming back - as we are effectively being
terminated and should not impede the progress.

This patch solves this problem by checking whether the guest is the
right domain. If it is an initial domain and hurtling towards death -
there is no point of continuing the wait. All other type of guests
continue with their behavior (as Xenstore is expected to still be
running in another domain).

Fixes-Bug: http://bugs.xenproject.org/xen/bug/8
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 17:41:28 +01:00
Konrad Rzeszutek Wilk
e0fc17a936 xen/spinlock: Don't enable them unconditionally.
The git commit a945928ea2
('xen: Do not enable spinlocks before jump_label_init() has executed')
was added to deal with the jump machinery. Earlier the code
that turned on the jump label was only called by Xen specific
functions. But now that it had been moved to the initcall machinery
it gets called on Xen, KVM, and baremetal - ouch!. And the detection
machinery to only call it on Xen wasn't remembered in the heat
of merge window excitement.

This means that the slowpath is enabled on baremetal while it should
not be.

Reported-by: Waiman Long <waiman.long@hp.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
CC: stable@vger.kernel.org
CC: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 17:41:28 +01:00
Dan Carpenter
c0914e6166 xen-pciback: silence an unwanted debug printk
There is a missing curly brace here so we might print some extra debug
information.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 17:41:12 +01:00
Daeseok Youn
cea37f8751 xen: fix memory leak in __xen_pcibk_add_pci_dev()
It need to free dev_entry when it failed to assign to a new
slot on the virtual PCI bus.

smatch says:
 drivers/xen/xen-pciback/vpci.c:142 __xen_pcibk_add_pci_dev() warn:
possible memory leak of 'dev_entry'

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 17:32:30 +01:00
Linus Walleij
f6da9fe45c irqchip: vic: Properly chain the cascaded IRQs
We are flagging the parent IRQ as chained, then we must also
make sure to call the chained_irq_[enter|exit] functions for
things to work smoothly.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: http://lkml.kernel.org/r/1397550484-7119-1-git-send-email-linus.walleij@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-04-15 18:24:24 +02:00
Boris Ostrovsky
4461bbc05b x86/xen: Fix 32-bit PV guests's usage of kernel_stack
Commit 198d208df4 ("x86: Keep
thread_info on thread stack in x86_32") made 32-bit kernels use
kernel_stack to point to thread_info. That change missed a couple of
updates needed by Xen's 32-bit PV guests:

1. kernel_stack needs to be initialized for secondary CPUs

2. GET_THREAD_INFO() now uses %fs register which may not be the
   kernel's version when executing xen_iret().

With respect to the second issue, we don't need GET_THREAD_INFO()
anymore: we used it as an intermediate step to get to per_cpu xen_vcpu
and avoid referencing %fs. Now that we are going to use %fs anyway we
may as well go directly to xen_vcpu.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-15 15:00:14 +01:00
Tomi Valkeinen
f2d022aa42 drm/omap: fix the handling of fb ref counts
With the recent primary-plane changes for drm, the primary plane's
framebuffer needs to be ref counted the same way as for
non-primary-planes. This was not done by the omapdrm driver, which
caused the ref count to drop to 0 too early, causing problems.

This patch moves the fb unref and ref from omap_plane_update to
omap_plane_mode_set. This way the fb refs are updated for both primary
and non-primary cases, as omap_plane_update calls omap_plane_mode_set.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 16:40:01 +03:00
Cody P Schafer
c9e87a4725 perf tools: Instead of redirecting flex output, use -o
This gives us a real filename instead of having '<stdout>' show up all
over the place when debugging.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1396652539-2416-1-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-15 13:57:21 +02:00
Adrian Hunter
ae450a7d05 perf tools: Fix double free in perf test 21 (code-reading.c)
perf_evlist__delete() deletes attached cpu and thread maps
but the test is still using them, so remove them from the
evlist before deleting it.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/53465E3E.8070201@intel.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-15 13:57:14 +02:00
Archit Taneja
38e5597a03 drm/omap: protect omap_crtc's event with event_lock spinlock
The vblank_cb callback and the page_flip ioctl can occur together in different
CPU contexts. vblank_cb uses takes tje drm device's event_lock spinlock when
sending the vblank event and updating omap_crtc->event and omap_crtc->od_fb.

Use the same spinlock in page_flip, to make sure the above omap_crtc parameters
are configured sequentially.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:29 +03:00
Archit Taneja
bc905aced3 drm/omap: Use old_fb to synchronize between successive page flips
omap_crtc->old_fb is used to check whether the previous page flip has completed
or not. However, it's never initialized to anything, so it's always NULL. This
results in the check to always succeed, and the page_flip to proceed.

Initialize old_fb to the fb that we intend to flip to through page_flip, and
therefore prevent a future page flip to proceed if the last one didn't
complete.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:28 +03:00
Archit Taneja
71b6667765 drm/omap: Fix crash when using LCD3 overlay manager
The channel_names list didn't have a string populated for LCD3 manager, this
results in a crash when the display's output is connected to LCD3. Add an entry
for LCD3.

Reported-by: Somnath Mukherjee <somnath@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:28 +03:00
Archit Taneja
f2cff0f34f drm/omap: gem sync: wait on correct events
A waiter of the type OMAP_GEM_READ should wait for a buffer to be completely
written, and only then proceed with reading it. A similar logic applies for
waiters with OMAP_GEM_WRITE flag.

Currently the function is_waiting() waits on the read_complete/read_target
counts in the sync object.

This should be the other way round, as a reader should wait for users who are
'writing' to this buffer, and vice versa.

Make readers of the buffer(OMAP_GEM_READ) wait on the write counters, and
writers to the buffer(OMAP_GEM_WRITE) wait on the read counters in is_waiting()

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:28 +03:00
Subhajit Paul
15ec2ca964 drm/omap: Fix memory leak in omap_gem_op_async
In omap_gem_op_async(), if a waiter is not added to the wait list, it needs to
be free'd in the function itself.

Make sure we free the waiter for this case.

Signed-off-by: Subhajit Paul <subhajit_paul@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:27 +03:00
Tomi Valkeinen
b841aedfcf drm/omap: remove warn from debugfs
Patch dfe96ddcfa (omapdrm: simplify locking in
the fb debugfs file) removed taking locks when using omapdrm's debugfs
to dump fb objects.

However, in omap_gem_describe we give a WARN is the lock has not been
taken, so that WARN is now seen every time omapdrm debugfs is used.

So, presuming the removal of locks is ok, we can also remove the WARN.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:27 +03:00
Tomi Valkeinen
772cdc9777 drm/omap: remove extra plane->destroy from crtc destroy
All the planes, including primary planes, are now destroyed by the drm
framework. Thus we no longer need the explicit call to plane->destroy
from the crtc's destroy function.

This patch removes the call, thus fixing the crash caused by double
freeing the plane.

remove omap_crtc->plane->funcs->destroy(omap_crtc->plane)

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:27 +03:00
Tomi Valkeinen
5ac9634589 drm/omap: print warning when rotating non-TILER fb
Print a warning when the user tries to rotate a non-TILER framebuffer.

Also set the rotation to 0, to avoid constant flood of the warnings in
case of page flipping.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-15 13:35:14 +03:00