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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Here are a few fixes that I'd like to still get in:
* disable U-APSD for better interoperability, from Michal Kazior
* drop unencrypted frames in mesh forwarding, from Bob Copeland
* treat non-QoS/WMM HT stations as non-HT, to fix confusion when
they connect and then get QoS packets anyway due to HT
* fix counting interfaces for combination checks, otherwise the
interface combinations aren't properly enforced (from Andrei)
* fix pure ECSA by reacting to the IE change
* ignore erroneous (E)CSA to the current channel which sometimes
happens due to AP/GO bugs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2015-03-16
1) Fix the network header offset in _decode_session6
when multiple IPv6 extension headers are present.
From Hajime Tazaki.
2) Fix an interfamily tunnel crash. We set outer mode
protocol too early and may dispatch to the wrong
address family. Move the setting of the outer mode
protocol behind the last accessing of the inner mode
to fix the crash.
3) Most callers of xfrm_lookup() expect that dst_orig
is released on error. But xfrm_lookup_route() may
need dst_orig to handle certain error cases. So
introduce a flag that tells what should be done in
case of error. From Huaibin Wang.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 6ab17a8484f03c188a93713369912f1545eb26e9 since it,
according to Benjamin, causes issues with slot assignment:
E: 15.669119 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
E: 15.954242 0003 002f 0000 # EV_ABS / ABS_MT_SLOT 0
E: 15.954242 0003 0039 0505 # EV_ABS / ABS_MT_TRACKING_ID 505
E: 15.954242 0003 0035 3851 # EV_ABS / ABS_MT_POSITION_X 3851
E: 15.954242 0003 0036 4076 # EV_ABS / ABS_MT_POSITION_Y 4076
E: 15.954242 0003 003a 0034 # EV_ABS / ABS_MT_PRESSURE 34
E: 15.954242 0001 014a 0001 # EV_KEY / BTN_TOUCH 1
E: 15.954242 0003 0000 3851 # EV_ABS / ABS_X 3851
E: 15.954242 0003 0001 4076 # EV_ABS / ABS_Y 4076
E: 15.954242 0003 0018 0034 # EV_ABS / ABS_PRESSURE 34
E: 15.954242 0001 0145 0001 # EV_KEY / BTN_TOOL_FINGER 1
E: 15.954242 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
... (bunch of regular events)...
E: 16.020614 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
E: 16.043601 0003 0035 3873 # EV_ABS / ABS_MT_POSITION_X 3873
E: 16.043601 0003 0036 3903 # EV_ABS / ABS_MT_POSITION_Y 3903
E: 16.043601 0003 003a 0050 # EV_ABS / ABS_MT_PRESSURE 50
E: 16.043601 0003 0035 3032 # EV_ABS / ABS_MT_POSITION_X 3032
E: 16.043601 0003 0036 3832 # EV_ABS / ABS_MT_POSITION_Y 3832
E: 16.043601 0003 003a 0044 # EV_ABS / ABS_MT_PRESSURE 44
E: 16.043601 0003 0000 3032 # EV_ABS / ABS_X 3032
E: 16.043601 0003 0001 3832 # EV_ABS / ABS_Y 3832
E: 16.043601 0003 0018 0044 # EV_ABS / ABS_PRESSURE 44
E: 16.043601 0001 0145 0000 # EV_KEY / BTN_TOOL_FINGER 0
E: 16.043601 0001 014d 0001 # EV_KEY / BTN_TOOL_DOUBLETAP 1
E: 16.043601 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
E: 16.068837 0003 002f 0001 # EV_ABS / ABS_MT_SLOT 1
E: 16.068837 0003 0039 0506 # EV_ABS / ABS_MT_TRACKING_ID 506
E: 16.068837 0003 0035 3912 # EV_ABS / ABS_MT_POSITION_X 3912
E: 16.068837 0003 0036 3743 # EV_ABS / ABS_MT_POSITION_Y 3743
E: 16.068837 0003 003a 0056 # EV_ABS / ABS_MT_PRESSURE 56
E: 16.068837 0003 002f 0000 # EV_ABS / ABS_MT_SLOT 0
E: 16.068837 0003 0035 3026 # EV_ABS / ABS_MT_POSITION_X 3026
E: 16.068837 0003 0036 3708 # EV_ABS / ABS_MT_POSITION_Y 3708
E: 16.068837 0003 003a 0052 # EV_ABS / ABS_MT_PRESSURE 52
E: 16.068837 0003 0000 3026 # EV_ABS / ABS_X 3026
E: 16.068837 0003 0001 3708 # EV_ABS / ABS_Y 3708
E: 16.068837 0003 0018 0052 # EV_ABS / ABS_PRESSURE 52
E: 16.068837 0000 0000 0000 # ------------ SYN_REPORT (0) ----------
Slot 0 and 1 gets inverted in the second report above, which
introduces a cursor jump. The problem is that this cursor jump is
often enough to leave the current widget, and X sends the
scrolling events to whoever is now under the cursor.
Reported-by: Benjamin Tissoires <btissoir@redhat.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
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Bring in changes needed to properly handle Lenovo 2015 lineup.
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The commit [ef403edb7558: ALSA: hda - Don't access stereo amps for
mono channel widgets] fixed the handling of mono widgets in general,
but it still misses an exceptional case: namely, a mono mixer widget
taking a single stereo input. In this case, it has stereo volumes
although it's a mono widget, and thus we have to take care of both
left and right input channels, as stated in HD-audio spec ("7.1.3
Widget Interconnection Rules").
This patch covers this missing piece by adding proper checks of stereo
amps in both the generic parser and the proc output codes.
Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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into asoc-linus
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'asoc/fix/da732x', 'asoc/fix/fsl-ssi', 'asoc/fix/lock' and 'asoc/fix/rt286' into asoc-linus
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'regulator/fix/tps65910' into regulator-linus
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drivers/regulator/tps65910-regulator.c: In function ‘tps65910_parse_dt_reg_data’:
drivers/regulator/tps65910-regulator.c:1018: error: implicit declaration of function ‘of_get_child_by_name’
drivers/regulator/tps65910-regulator.c:1018: warning: assignment makes pointer from integer without a cast
drivers/regulator/tps65910-regulator.c:1034: error: implicit declaration of function ‘of_node_put’
drivers/regulator/tps65910-regulator.c:1056: error: implicit declaration of function ‘of_property_read_u32’
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This reverts commit:
f47233c2d34f ("x86/mm/ASLR: Propagate base load address calculation")
The main reason for the revert is that the new boot flag does not work
at all currently, and in order to make this work, we need non-trivial
changes to the x86 boot code which we didn't manage to get done in
time for merging.
And even if we did, they would've been too risky so instead of
rushing things and break booting 4.1 on boxes left and right, we
will be very strict and conservative and will take our time with
this to fix and test it properly.
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: H. Peter Anvin <hpa@linux.intel.com
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Junjie Mao <eternal.n08@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/20150316100628.GD22995@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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If the AP is confused and starts doing a CSA to the same channel,
just ignore that request instead of trying to act it out since it
was likely sent in error anyway.
In the case of the bug I was investigating the GO was misbehaving
and sending out a beacon with CSA IEs still included after having
actually done the channel switch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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As HT/VHT depend heavily on QoS/WMM, it's not a good idea to
let userspace add clients that have HT/VHT but not QoS/WMM.
Since it does so in certain cases we've observed (client is
using HT IEs but not QoS/WMM) just ignore the HT/VHT info at
this point and don't pass it down to the drivers which might
unconditionally use it.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When a beacon from the AP contains only the ECSA IE, and not a CSA IE
as well, this ECSA IE is not considered for calculating the CRC and
the beacon might be dropped as not being interesting. This is clearly
wrong, it should be handled and the channel switch should be executed.
Fix this by including the ECSA IE ID in the bitmap of interesting IEs.
Reported-by: Gil Tribush <gil.tribush@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since moving the interface combination checks to mac80211, it's
broken because it now only considers interfaces with an assigned
channel context, so for example any interface that isn't active
can still be up, which is clearly an issue; also, in particular
P2P-Device wdevs are an issue since they never have a chanctx.
Fix this by counting running interfaces instead the ones with a
channel context assigned.
Cc: stable@vger.kernel.org [3.16+]
Fixes: 73de86a38962b ("cfg80211/mac80211: move interface counting for combination check to mac80211")
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[rewrite commit message, dig out the commit it fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Follow commit 871341023c771ad.
Kernel faults are expected to handle OOM conditions gracefully (gup,
uaccess etc.), so they should never invoke the OOM killer. Reserve
this for faults triggered in user context when it is the only option.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
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If you pass an invalid string here then you probably deserve the memory
corruption, but it annoys static analysis tools so lets fix it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 92d5dd8cd6e2 ("nios2: update pt_regs") removed the nios2 specific
ucontext.h, replacing it with the version from asm-generic. Thus it's no
longer necessary to include ucontext.h in exported headers.
Cc: Chung-Ling Tang <cltang@codesourcery.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
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[I would really like an ACK on that one from dhowells; it appears to be
quite straightforward, but...]
MSG_PEEK isn't passed to ->recvmsg() via msg->msg_flags; as the matter of
fact, neither the kernel users of rxrpc, nor the syscalls ever set that bit
in there. It gets passed via flags; in fact, another such check in the same
function is done correctly - as flags & MSG_PEEK.
It had been that way (effectively disabled) for 8 years, though, so the patch
needs beating up - that case had never been tested. If it is correct, it's
-stable fodder.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It should be checking flags, not msg->msg_flags. It's ->sendmsg()
instances that need to look for that in ->msg_flags, ->recvmsg() ones
(including the other ->recvmsg() instance in that file, as well as
unix_dgram_recvmsg() this one claims to be imitating) check in flags.
Braino had been introduced in commit dcda13 ("caif: Bugfix - use MSG_TRUNC
in receive") back in 2010, so it goes quite a while back.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull drm fix from Dave Airlie:
"An oops snuck in in an -rc3 patch, this fixes it"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
[PATCH] drm/mm: Fix support 4 GiB and larger ranges
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clock framework fixes from Michael Turquette:
"The clk fixes for 4.0-rc4 comprise three themes.
First are the usual driver fixes for new regressions since v3.19.
Second are fixes to the common clock divider type caused by recent
changes to how we round clock rates. This affects many clock drivers
that use this common code.
Finally there are fixes for drivers that improperly compared struct
clk pointers (drivers must not deref these pointers). While some of
these drivers have done this for a long time, this did not cause a
problem until we started generating unique struct clk pointers for
every consumer. A new function, clk_is_match was introduced to get
these drivers working again and they are fixed up to no longer deref
the pointers themselves"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
ASoC: kirkwood: fix struct clk pointer comparing
ASoC: fsl_spdif: fix struct clk pointer comparing
ARM: imx: fix struct clk pointer comparing
clk: introduce clk_is_match
clk: don't export static symbol
clk: divider: fix calculation of initial best divider when rounding to closest
clk: divider: fix selection of divider when rounding to closest
clk: divider: fix calculation of maximal parent rate for a given divider
clk: divider: return real rate instead of divider value
clk: qcom: fix platform_no_drv_owner.cocci warnings
clk: qcom: fix platform_no_drv_owner.cocci warnings
clk: qcom: Add PLL4 vote clock
clk: qcom: lcc-msm8960: Fix PLL rate detection
clk: qcom: Fix slimbus n and m val offsets
clk: ti: Fix FAPLL parent enable bit handling
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bad argument if(tmp)... in check_free_hole
fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305!
[airlied: excellent, this was my task for today].
Signed-off-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Reviewed-by: Chris wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a rather unpleasantly large set of bug fixes for arm-soc, Most
of them because of cross-tree dependencies for Exynos where we should
have figured out the right path to merge things before the merge
window, and then the maintainer being unable to sort things out in
time during a business trip.
The other changes contained here are the usual collection:
MAINTAINERS file updates
- Gregory Clement is now a co-maintainer for the legacy Marvell EBU
platforms
- A MAINTAINERS entry for the Freescale Vybrid platform that was
added last year
- Matt Porter no longer works as a maintainer on Broadcom SoCs
Build-time issues
- A compile-time error for at91
- Several minor DT fixes on at91, imx, exynos, socfpga, and omap
- The new digicolor platform was not correctly enabled at all
Configuration issues
- Two defconfig fix for regressions using USB on versatile express
and on OMAP3
- Enabling all 8 CPUs on Allwinner/SUNxi
- Enabling the new STiH410 platform to be usable
Bug fixes in platform code
- A missing barrier for socfpga
- Fixing LPDDR1 self-refresh mode on at91
- Fixing RTC interrupt numbers on Exynos3250
- Fixing a cache-coherency issues in CPU power-down on Exynos5
- Multiple small OMAP power management fixes"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (69 commits)
MAINTAINERS: Add myself as co-maintainer to the legacy support of the mvebu SoCs
ARM: at91: pm_slowclock: fix the compilation error
ARM: at91/dt: fix USB high-speed clock to select UTMI
ARM: at91/dt: fix at91 udc compatible strings
ARM: at91/dt: declare matrix node as a syscon device
ARM: vexpress: update CONFIG_USB_ISP1760 option
ARM: digicolor: add the machine directory to Makefile
ARM: STi: Add STiH410 SoC support
MAINTAINERS: add Freescale Vybrid SoC
MAINTAINERS: Remove self as ARM mach-bcm co-maintainer
ARM: imx6sl-evk: set swbst_reg as vbus's parent reg
ARM: imx6qdl-sabresd: set swbst_reg as vbus's parent reg
ARM: at91/dt: at91sam9261: fix clocks and clock-names in udc definition
ARM: OMAP2+: Fix wl12xx on dm3730-evm with mainline u-boot
ARM: OMAP: enable TWL4030_USB in omap2plus_defconfig
ARM: dts: dra7x-evm: avoid possible contention while muxing on CAN lines
ARM: dts: dra7x-evm: Don't use dcan1_rx.gpio1_15 in DCAN pinctrl
ARM: dts: am43xx: fix SLEWCTRL_FAST pinctrl binding
ARM: dts: am33xx: fix SLEWCTRL_FAST pinctrl binding
ARM: dts: OMAP5: fix polling intervals for thermal zones
...
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Pull irqchip fixes from Jason Cooper:
"armada-370-xp:
- Chained per-cpu interrupts
gic{,-v3,v3-its}"
- Various fixes for safer operation"
* tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux:
irqchip: gicv3-its: Support safe initialization
irqchip: gicv3-its: Define macros for GITS_CTLR fields
irqchip: gicv3-its: Add limitation to page order
irqchip: gicv3-its: Use 64KB page as default granule
irqchip: gicv3-its: Zero itt before handling to hardware
irqchip: gic-v3: Fix out of bounds access to cpu_logical_map
irqchip: gic: Fix unsafe locking reported by lockdep
irqchip: gicv3-its: Fix unsafe locking reported by lockdep
irqchip: gicv3-its: Iterate over PCI aliases to generate ITS configuration
irqchip: gicv3-its: Allocate enough memory for the full range of DeviceID
irqchip: gicv3-its: Fix ITS CPU init
irqchip: armada-370-xp: Fix chained per-cpu interrupts
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The linux kernel has supported the TiVo Slide remote control for some time, but
does not recognize the USB ID of the newer Slide Pro. This patch adds the
missing data structures so the newer remote will be recognized by the driver,
thereby allowing the TiVo, LiveTV, and Thumbs Up/Down buttons to be
mapped with a hwdb file.
Signed-off-by: Forest Wilkinson <web11.forest@tibit.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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On adding an interface br_add_if() sets the MTU to the min of
all the interfaces. Do the same thing on removing an interface too
in br_del_if.
Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull drm fixes from Dave Airlie:
"Misc i915, vmwgfx and radeon fixes along with a fix for one of those
recursive sleep mutex debug cases in the mst code"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix an issue with the device losing its irq line on module unload
drm/vmwgfx: Correctly NULLify dma buffer pointer on failure
drm/vmwgfx: Reorder device takedown somewhat
drm/vmwgfx: Fix a couple of lock dependency violations
drm/radeon: drop setting UPLL to sleep mode
drm/radeon: fix wait to actually occur after the signaling callback
drm/i915: Prevent TLB error on first execution on SNB
drm/i915: Do both mt and gen6 style forcewake reset on ivb probe
drm/i915: Make WAIT_IOCTL negative timeouts be indefinite again
drm/i915: use in_interrupt() not in_irq() to check context
drm/mst: fix recursive sleep warning on qlock
drm: Don't assign fbs for universal cursor support to files
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"This is a simple fix for a domain revalidation crash which has
recently turned up in the libsas code (applies to mvsas, isc and
aic94xx)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
libsas: Fix Kernel Crash in smp_execute_task
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
Hello David, this is a pull request for net/master, consisting of two patches:
In the first patch Michal Simek enables the xilinx CAN driver for ARM64. The
second patch by Ahmed S. Darwish fixes a race condition in the tx-queue of the
kvaser_usb driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull file locking bugfix from Jeff Layton:
"Just a small fix for a potential problem in one of the lease
tracepoints"
* tag 'locks-v4.0-4' of git://git.samba.org/jlayton/linux:
locks: fix generic_delete_lease tracepoint to use victim pointer
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Pull VFIO fix from Alex Williamson:
"Add missing break to avoid clobbering ioctl (Alexey Kardashevskiy)"
* tag 'vfio-v4.0-rc4' of git://github.com/awilliam/linux-vfio:
vfio-pci: Add missing break to enable VFIO_PCI_ERR_IRQ_INDEX
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- add TLB invalidation for page table tear-down which was missed when
support for CONFIG_HAVE_RCU_TABLE_FREE was added (assuming page table
freeing was always deferred)
- use UEFI for system and reset poweroff if available
- fix asm label placement in relation to the alignment statement
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: put __boot_cpu_mode label after alignment instead of before
efi/arm64: use UEFI for system reset and poweroff
arm64: Invalidate the TLB corresponding to intermediate page table levels
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
"selftests/exec: Check if the syscall exists and bail if not"
* tag 'linux-kselftest-4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/exec: Check if the syscall exists and bail if not
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It's possible that "fl" won't point at a valid lock at this point, so
use "victim" instead which is either a valid lock or NULL.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
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There is an interesting bug in the vgic code, which manifests itself
when the KVM run loop has a signal pending or needs a vmid generation
rollover after having disabled interrupts but before actually switching
to the guest.
In this case, we flush the vgic as usual, but we sync back the vgic
state and exit to userspace before entering the guest. The consequence
is that we will be syncing the list registers back to the software model
using the GICH_ELRSR and GICH_EISR from the last execution of the guest,
potentially overwriting a list register containing an interrupt.
This showed up during migration testing where we would capture a state
where the VM has masked the arch timer but there were no interrupts,
resulting in a hung test.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Reported-by: Alex Bennee <alex.bennee@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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Another one for the big head.S spring cleaning: the label should
be after the .align or it may point to the padding.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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If UEFI Runtime Services are available, they are preferred over direct
PSCI calls or other methods to reset the system.
For the reset case, we need to hook into machine_restart(), as the
arm_pm_restart function pointer may be overwritten by modules.
Tested-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The ARM architecture allows the caching of intermediate page table
levels and page table freeing requires a sequence like:
pmd_clear()
TLB invalidation
pte page freeing
With commit 5e5f6dc10546 (arm64: mm: enable HAVE_RCU_TABLE_FREE logic),
the page table freeing batching was moved from tlb_remove_page() to
tlb_remove_table(). The former takes care of TLB invalidation as this is
also shared with pte clearing and page cache page freeing. The latter,
however, does not invalidate the TLBs for intermediate page table levels
as it probably relies on the architecture code to do it if required.
When the mm->mm_users < 2, tlb_remove_table() does not do any batching
and page table pages are freed before tlb_finish_mmu() which performs
the actual TLB invalidation.
This patch introduces __tlb_flush_pgtable() for arm64 and calls it from
the {pte,pmd,pud}_free_tlb() directly without relying on deferred page
table freeing.
Fixes: 5e5f6dc10546 arm64: mm: enable HAVE_RCU_TABLE_FREE logic
Reported-by: Jon Masters <jcm@redhat.com>
Tested-by: Jon Masters <jcm@redhat.com>
Tested-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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A number of tx queue wake-up events went missing due to the
outlined scenario below. Start state is a pool of 16 tx URBs,
active tx_urbs count = 15, with the netdev tx queue open.
CPU #1 [softirq] CPU #2 [softirq]
start_xmit() tx_acknowledge()
................ ................
atomic_inc(&tx_urbs);
if (atomic_read(&tx_urbs) >= 16) {
-->
atomic_dec(&tx_urbs);
netif_wake_queue();
return;
<--
netif_stop_queue();
}
At the end, the correct state expected is a 15 tx_urbs count
value with the tx queue state _open_. Due to the race, we get
the same tx_urbs value but with the tx queue state _stopped_.
The wake-up event is completely lost.
Thus avoid hand-rolled concurrency mechanisms and use a proper
lock for contexts and tx queue protection.
Signed-off-by: Ahmed S. Darwish <ahmed.darwish@valeo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Enable the xilinx driver for ARM64.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"Just two fixes, one for an ACPI LPSS driver issue introduced during
the 3.17 cycle and one revert of a recent commit that sort of broke
the cpupower tool.
Specifics:
- Fix an ACPI LPSS (Low-Power Subsystem) driver issue causing the
8250_dw driver to confuse an LPSS clock with another one it is
supposed to handle due to the lack of identification allowing it to
tell those clocks apart (Heikki Krogerus).
- Revert a recent commit that was supposed to improve the usability
of the cpupower tool, but clearly did the opposite (Josh Boyer)"
* tag 'pm+acpi-4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "cpupower Makefile change to help run the tool without 'make install'"
ACPI / LPSS: provide con_id for the clkdev
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I will also take care of the legacy support(not fully converted to DT)
of the mvebu SoCs.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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* pm-tools:
Revert "cpupower Makefile change to help run the tool without 'make install'"
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- fix a PV regression in 3.19.
- fix a dom0 crash on hosts with large numbers of PIRQs.
- prevent pcifront from disabling memory or I/O port access, which may
trigger host crashes.
* tag 'stable/for-linus-4.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-pciback: limit guest control of command register
xen/events: avoid NULL pointer dereference in dom0 on large machines
xen: Remove trailing semicolon from xenbus_register_frontend() definition
x86/xen: correct bug in p2m list initialization
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This is a round of HD-audio fixes: there are a long-standing
regression fix and a few more device/codec-specific quirks.
In addition, a couple of FireWire regression fixes, a USB-audio quirk
for Roland UA-22 and a sanity check in API for user-defined control
elements"
* tag 'sound-4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Don't access stereo amps for mono channel widgets
ALSA: hda - Add workaround for MacBook Air 5,2 built-in mic
ALSA: hda - Set single_adc_amp flag for CS420x codecs
ALSA: snd-usb: add quirks for Roland UA-22
ALSA: control: Add sanity checks for user ctl id name string
ALSA: hda - Fix built-in mic on Compaq Presario CQ60
ALSA: firewire-lib: leave unit reference counting completely
Revert "ALSA: dice: fix wrong offsets for Dice interface"
ALSA: hda - Fix regression of HD-audio controller fallback modes
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inet_diag_dump_one_icsk() allocates too small skb.
Add inet_sk_attr_size() helper right before inet_sk_diag_fill()
so that it can be updated if/when new attributes are added.
iproute2/ss currently does not use this dump_one() interface,
this might explain nobody noticed this problem yet.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- fix for stdout-path option parsing with added unittest
- fix for stdout-path interaction with earlycon
- several DT unittest fixes
- fix Sparc allmodconfig build error on of_platform_register_reconfig_notifier
- several DT overlay kconfig and build warning fixes
- several DT binding documentation updates
* tag 'devicetree-fixes-for-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of/platform: Fix sparc:allmodconfig build
of: unittest: Add options string testcase variants
of: fix handling of '/' in options for of_find_node_by_path()
of/unittest: Fix the wrong expected value in of_selftest_property_string
of/unittest: remove the duplicate of_changeset_init
dt: submitting-patches: clarify that DT maintainers are to be cced on bindings
of: unittest: fix I2C dependency
of/overlay: Remove unused variable
Documentation: DT: Renamed of-serial.txt to 8250.txt
of: Fix premature bootconsole disable with 'stdout-path'
serial: add device tree binding documentation for ETRAX FS UART
of/overlay: Directly include idr.h
of: Drop superfluous dependance for OF_OVERLAY
of: Add vendor prefix for Arasan
of: Add prompt for OF_OVERLAY config
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